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authorAnthony Liguori <aliguori@us.ibm.com>2013-06-07 08:40:52 -0500
committerAnthony Liguori <aliguori@us.ibm.com>2013-06-07 08:40:52 -0500
commit7387de16d0e4d2988df350926537cd12a8e34206 (patch)
tree8b7aafb79e2a8197ae002dc3250d9b0ba44520c9
parentb8a75b6093309a43f9837bc2ce63bcf15a7b305f (diff)
parente73fe2b46c38776288415ce7bc8ba3fcd23721c4 (diff)
downloadqemu-7387de16d0e4d2988df350926537cd12a8e34206.tar.gz
Merge remote-tracking branch 'stefanha/block' into staging
# By Kevin Wolf (19) and others # Via Stefan Hajnoczi * stefanha/block: (26 commits) hmp: add parameters device and -v for info block hmp: show ImageInfo in 'info block' qmp: add ImageInfo in BlockDeviceInfo used by query-block block: add image info query function bdrv_query_image_info() block: add snapshot info query function bdrv_query_snapshot_info_list() ide-test: Add FLUSH CACHE test case ide: Set BSY bit during FLUSH ide-test: Add enum value for DEV blkdebug: Add BLKDBG_FLUSH_TO_OS/DISK events Make qemu-io commands available in HMP qemu-io: Use the qemu version for -V qemu-io: Interface cleanup qemu-io: Move remaining helpers from cmd.c qemu-io: Move command_loop() and friends qemu-io: Move functions for registering and running commands qemu-io: Move qemu_strsep() to cutils.c qemu-io: Move 'quit' function qemu-io: Move 'help' function qemu-io: Factor out qemuio_command qemu-io: Split off commands to qemu-io-cmds.c ... Message-id: 1370606325-10680-1-git-send-email-stefanha@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat
-rw-r--r--Makefile2
-rw-r--r--Makefile.objs1
-rw-r--r--block.c8
-rw-r--r--block/blkdebug.c3
-rw-r--r--block/qapi.c148
-rw-r--r--blockdev.c4
-rw-r--r--cmd.c612
-rw-r--r--cmd.h79
-rw-r--r--hmp-commands.hx18
-rw-r--r--hmp.c39
-rw-r--r--hmp.h1
-rw-r--r--hw/ide/core.c1
-rw-r--r--include/block/block.h3
-rw-r--r--include/block/qapi.h14
-rw-r--r--include/qemu-common.h3
-rw-r--r--include/qemu-io.h46
-rw-r--r--monitor.c15
-rw-r--r--qapi-schema.json10
-rw-r--r--qemu-img.c20
-rw-r--r--qemu-io-cmds.c2118
-rw-r--r--qemu-io.c1986
-rw-r--r--qmp-commands.hx69
-rw-r--r--tests/ide-test.c43
-rw-r--r--tests/qemu-iotests/049.out8
-rw-r--r--util/cutils.c25
25 files changed, 2715 insertions, 2561 deletions
diff --git a/Makefile b/Makefile
index a96736b06b..9a77ae0e18 100644
--- a/Makefile
+++ b/Makefile
@@ -186,7 +186,7 @@ qemu-img.o: qemu-img-cmds.h
qemu-img$(EXESUF): qemu-img.o $(block-obj-y) libqemuutil.a libqemustub.a
qemu-nbd$(EXESUF): qemu-nbd.o $(block-obj-y) libqemuutil.a libqemustub.a
-qemu-io$(EXESUF): qemu-io.o cmd.o $(block-obj-y) libqemuutil.a libqemustub.a
+qemu-io$(EXESUF): qemu-io.o $(block-obj-y) libqemuutil.a libqemustub.a
qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o
diff --git a/Makefile.objs b/Makefile.objs
index 286ce069b2..5b288ba42f 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -13,6 +13,7 @@ block-obj-$(CONFIG_POSIX) += aio-posix.o
block-obj-$(CONFIG_WIN32) += aio-win32.o
block-obj-y += block/
block-obj-y += qapi-types.o qapi-visit.o
+block-obj-y += qemu-io-cmds.o
block-obj-y += qemu-coroutine.o qemu-coroutine-lock.o qemu-coroutine-io.o
block-obj-y += qemu-coroutine-sleep.o
diff --git a/block.c b/block.c
index 3f616de974..79ad33d0f9 100644
--- a/block.c
+++ b/block.c
@@ -3186,13 +3186,11 @@ int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event)
{
- BlockDriver *drv = bs->drv;
-
- if (!drv || !drv->bdrv_debug_event) {
+ if (!bs || !bs->drv || !bs->drv->bdrv_debug_event) {
return;
}
- drv->bdrv_debug_event(bs, event);
+ bs->drv->bdrv_debug_event(bs, event);
}
int bdrv_debug_breakpoint(BlockDriverState *bs, const char *event,
@@ -4024,6 +4022,7 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs)
}
/* Write back cached data to the OS even with cache=unsafe */
+ BLKDBG_EVENT(bs->file, BLKDBG_FLUSH_TO_OS);
if (bs->drv->bdrv_co_flush_to_os) {
ret = bs->drv->bdrv_co_flush_to_os(bs);
if (ret < 0) {
@@ -4036,6 +4035,7 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs)
goto flush_parent;
}
+ BLKDBG_EVENT(bs->file, BLKDBG_FLUSH_TO_DISK);
if (bs->drv->bdrv_co_flush_to_disk) {
ret = bs->drv->bdrv_co_flush_to_disk(bs);
} else if (bs->drv->bdrv_aio_flush) {
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 71f99e4067..ccb627ad93 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -182,6 +182,9 @@ static const char *event_names[BLKDBG_EVENT_MAX] = {
[BLKDBG_CLUSTER_ALLOC] = "cluster_alloc",
[BLKDBG_CLUSTER_ALLOC_BYTES] = "cluster_alloc_bytes",
[BLKDBG_CLUSTER_FREE] = "cluster_free",
+
+ [BLKDBG_FLUSH_TO_OS] = "flush_to_os",
+ [BLKDBG_FLUSH_TO_DISK] = "flush_to_disk",
};
static int get_event_by_name(const char *name, BlkDebugEvent *event)
diff --git a/block/qapi.c b/block/qapi.c
index 794dbf8fe8..a4bc4113b7 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -26,29 +26,56 @@
#include "block/block_int.h"
#include "qmp-commands.h"
-void bdrv_collect_snapshots(BlockDriverState *bs , ImageInfo *info)
+/*
+ * Returns 0 on success, with *p_list either set to describe snapshot
+ * information, or NULL because there are no snapshots. Returns -errno on
+ * error, with *p_list untouched.
+ */
+int bdrv_query_snapshot_info_list(BlockDriverState *bs,
+ SnapshotInfoList **p_list,
+ Error **errp)
{
int i, sn_count;
QEMUSnapshotInfo *sn_tab = NULL;
- SnapshotInfoList *info_list, *cur_item = NULL;
+ SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL;
+ SnapshotInfo *info;
+
sn_count = bdrv_snapshot_list(bs, &sn_tab);
+ if (sn_count < 0) {
+ const char *dev = bdrv_get_device_name(bs);
+ switch (sn_count) {
+ case -ENOMEDIUM:
+ error_setg(errp, "Device '%s' is not inserted", dev);
+ break;
+ case -ENOTSUP:
+ error_setg(errp,
+ "Device '%s' does not support internal snapshots",
+ dev);
+ break;
+ default:
+ error_setg_errno(errp, -sn_count,
+ "Can't list snapshots of device '%s'", dev);
+ break;
+ }
+ return sn_count;
+ }
for (i = 0; i < sn_count; i++) {
- info->has_snapshots = true;
- info_list = g_new0(SnapshotInfoList, 1);
+ info = g_new0(SnapshotInfo, 1);
+ info->id = g_strdup(sn_tab[i].id_str);
+ info->name = g_strdup(sn_tab[i].name);
+ info->vm_state_size = sn_tab[i].vm_state_size;
+ info->date_sec = sn_tab[i].date_sec;
+ info->date_nsec = sn_tab[i].date_nsec;
+ info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000;
+ info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000;
- info_list->value = g_new0(SnapshotInfo, 1);
- info_list->value->id = g_strdup(sn_tab[i].id_str);
- info_list->value->name = g_strdup(sn_tab[i].name);
- info_list->value->vm_state_size = sn_tab[i].vm_state_size;
- info_list->value->date_sec = sn_tab[i].date_sec;
- info_list->value->date_nsec = sn_tab[i].date_nsec;
- info_list->value->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000;
- info_list->value->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000;
+ info_list = g_new0(SnapshotInfoList, 1);
+ info_list->value = info;
/* XXX: waiting for the qapi to support qemu-queue.h types */
if (!cur_item) {
- info->snapshots = cur_item = info_list;
+ head = cur_item = info_list;
} else {
cur_item->next = info_list;
cur_item = info_list;
@@ -57,20 +84,40 @@ void bdrv_collect_snapshots(BlockDriverState *bs , ImageInfo *info)
}
g_free(sn_tab);
+ *p_list = head;
+ return 0;
}
-void bdrv_collect_image_info(BlockDriverState *bs,
- ImageInfo *info,
- const char *filename)
+/**
+ * bdrv_query_image_info:
+ * @bs: block device to examine
+ * @p_info: location to store image information
+ * @errp: location to store error information
+ *
+ * Store "flat" image information in @p_info.
+ *
+ * "Flat" means it does *not* query backing image information,
+ * i.e. (*pinfo)->has_backing_image will be set to false and
+ * (*pinfo)->backing_image to NULL even when the image does in fact have
+ * a backing image.
+ *
+ * @p_info will be set only on success. On error, store error in @errp.
+ */
+void bdrv_query_image_info(BlockDriverState *bs,
+ ImageInfo **p_info,
+ Error **errp)
{
uint64_t total_sectors;
- char backing_filename[1024];
+ const char *backing_filename;
char backing_filename2[1024];
BlockDriverInfo bdi;
+ int ret;
+ Error *err = NULL;
+ ImageInfo *info = g_new0(ImageInfo, 1);
bdrv_get_geometry(bs, &total_sectors);
- info->filename = g_strdup(filename);
+ info->filename = g_strdup(bs->filename);
info->format = g_strdup(bdrv_get_format_name(bs));
info->virtual_size = total_sectors * 512;
info->actual_size = bdrv_get_allocated_file_size(bs);
@@ -87,7 +134,7 @@ void bdrv_collect_image_info(BlockDriverState *bs,
info->dirty_flag = bdi.is_dirty;
info->has_dirty_flag = true;
}
- bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
+ backing_filename = bs->backing_file;
if (backing_filename[0] != '\0') {
info->backing_filename = g_strdup(backing_filename);
info->has_backing_filename = true;
@@ -105,11 +152,37 @@ void bdrv_collect_image_info(BlockDriverState *bs,
info->has_backing_filename_format = true;
}
}
+
+ ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err);
+ switch (ret) {
+ case 0:
+ if (info->snapshots) {
+ info->has_snapshots = true;
+ }
+ break;
+ /* recoverable error */
+ case -ENOMEDIUM:
+ case -ENOTSUP:
+ error_free(err);
+ break;
+ default:
+ error_propagate(errp, err);
+ qapi_free_ImageInfo(info);
+ return;
+ }
+
+ *p_info = info;
}
-BlockInfo *bdrv_query_info(BlockDriverState *bs)
+/* @p_info will be set only on success. */
+void bdrv_query_info(BlockDriverState *bs,
+ BlockInfo **p_info,
+ Error **errp)
{
BlockInfo *info = g_malloc0(sizeof(*info));
+ BlockDriverState *bs0;
+ ImageInfo **p_image_info;
+ Error *local_err = NULL;
info->device = g_strdup(bs->device_name);
info->type = g_strdup("unknown");
info->locked = bdrv_dev_is_medium_locked(bs);
@@ -163,8 +236,30 @@ BlockInfo *bdrv_query_info(BlockDriverState *bs)
info->inserted->iops_wr =
bs->io_limits.iops[BLOCK_IO_LIMIT_WRITE];
}
+
+ bs0 = bs;
+ p_image_info = &info->inserted->image;
+ while (1) {
+ bdrv_query_image_info(bs0, p_image_info, &local_err);
+ if (error_is_set(&local_err)) {
+ error_propagate(errp, local_err);
+ goto err;
+ }
+ if (bs0->drv && bs0->backing_hd) {
+ bs0 = bs0->backing_hd;
+ (*p_image_info)->has_backing_image = true;
+ p_image_info = &((*p_image_info)->backing_image);
+ } else {
+ break;
+ }
+ }
}
- return info;
+
+ *p_info = info;
+ return;
+
+ err:
+ qapi_free_BlockInfo(info);
}
BlockStats *bdrv_query_stats(const BlockDriverState *bs)
@@ -201,16 +296,25 @@ BlockInfoList *qmp_query_block(Error **errp)
{
BlockInfoList *head = NULL, **p_next = &head;
BlockDriverState *bs = NULL;
+ Error *local_err = NULL;
while ((bs = bdrv_next(bs))) {
BlockInfoList *info = g_malloc0(sizeof(*info));
- info->value = bdrv_query_info(bs);
+ bdrv_query_info(bs, &info->value, &local_err);
+ if (error_is_set(&local_err)) {
+ error_propagate(errp, local_err);
+ goto err;
+ }
*p_next = info;
p_next = &info->next;
}
return head;
+
+ err:
+ qapi_free_BlockInfoList(head);
+ return NULL;
}
BlockStatsList *qmp_query_blockstats(Error **errp)
diff --git a/blockdev.c b/blockdev.c
index b9b2d10e6b..9937311aac 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1180,6 +1180,10 @@ int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
*/
if (bdrv_get_attached_dev(bs)) {
bdrv_make_anon(bs);
+
+ /* Further I/O must not pause the guest */
+ bdrv_set_on_error(bs, BLOCKDEV_ON_ERROR_REPORT,
+ BLOCKDEV_ON_ERROR_REPORT);
} else {
drive_uninit(drive_get_by_blockdev(bs));
}
diff --git a/cmd.c b/cmd.c
deleted file mode 100644
index 10a8688b2d..0000000000
--- a/cmd.c
+++ /dev/null
@@ -1,612 +0,0 @@
-/*
- * Copyright (c) 2003-2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <getopt.h>
-
-#include "cmd.h"
-#include "block/aio.h"
-#include "qemu/main-loop.h"
-
-#define _(x) x /* not gettext support yet */
-
-/* from libxcmd/command.c */
-
-cmdinfo_t *cmdtab;
-int ncmds;
-
-static argsfunc_t args_func;
-static checkfunc_t check_func;
-static int ncmdline;
-static char **cmdline;
-
-static int
-compare(const void *a, const void *b)
-{
- return strcmp(((const cmdinfo_t *)a)->name,
- ((const cmdinfo_t *)b)->name);
-}
-
-void add_command(const cmdinfo_t *ci)
-{
- cmdtab = g_realloc((void *)cmdtab, ++ncmds * sizeof(*cmdtab));
- cmdtab[ncmds - 1] = *ci;
- qsort(cmdtab, ncmds, sizeof(*cmdtab), compare);
-}
-
-static int
-check_command(
- const cmdinfo_t *ci)
-{
- if (check_func)
- return check_func(ci);
- return 1;
-}
-
-void
-add_check_command(
- checkfunc_t cf)
-{
- check_func = cf;
-}
-
-int
-command_usage(
- const cmdinfo_t *ci)
-{
- printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline);
- return 0;
-}
-
-int
-command(
- const cmdinfo_t *ct,
- int argc,
- char **argv)
-{
- char *cmd = argv[0];
-
- if (!check_command(ct))
- return 0;
-
- if (argc-1 < ct->argmin || (ct->argmax != -1 && argc-1 > ct->argmax)) {
- if (ct->argmax == -1)
- fprintf(stderr,
- _("bad argument count %d to %s, expected at least %d arguments\n"),
- argc-1, cmd, ct->argmin);
- else if (ct->argmin == ct->argmax)
- fprintf(stderr,
- _("bad argument count %d to %s, expected %d arguments\n"),
- argc-1, cmd, ct->argmin);
- else
- fprintf(stderr,
- _("bad argument count %d to %s, expected between %d and %d arguments\n"),
- argc-1, cmd, ct->argmin, ct->argmax);
- return 0;
- }
- optind = 0;
- return ct->cfunc(argc, argv);
-}
-
-const cmdinfo_t *
-find_command(
- const char *cmd)
-{
- cmdinfo_t *ct;
-
- for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) {
- if (strcmp(ct->name, cmd) == 0 ||
- (ct->altname && strcmp(ct->altname, cmd) == 0))
- return (const cmdinfo_t *)ct;
- }
- return NULL;
-}
-
-void add_user_command(char *optarg)
-{
- cmdline = g_realloc(cmdline, ++ncmdline * sizeof(char *));
- cmdline[ncmdline-1] = optarg;
-}
-
-static int
-args_command(
- int index)
-{
- if (args_func)
- return args_func(index);
- return 0;
-}
-
-void
-add_args_command(
- argsfunc_t af)
-{
- args_func = af;
-}
-
-static void prep_fetchline(void *opaque)
-{
- int *fetchable = opaque;
-
- qemu_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL);
- *fetchable= 1;
-}
-
-static char *get_prompt(void);
-
-void command_loop(void)
-{
- int c, i, j = 0, done = 0, fetchable = 0, prompted = 0;
- char *input;
- char **v;
- const cmdinfo_t *ct;
-
- for (i = 0; !done && i < ncmdline; i++) {
- input = strdup(cmdline[i]);
- if (!input) {
- fprintf(stderr, _("cannot strdup command '%s': %s\n"),
- cmdline[i], strerror(errno));
- exit(1);
- }
- v = breakline(input, &c);
- if (c) {
- ct = find_command(v[0]);
- if (ct) {
- if (ct->flags & CMD_FLAG_GLOBAL) {
- done = command(ct, c, v);
- } else {
- j = 0;
- while (!done && (j = args_command(j))) {
- done = command(ct, c, v);
- }
- }
- } else {
- fprintf(stderr, _("command \"%s\" not found\n"), v[0]);
- }
- }
- doneline(input, v);
- }
- if (cmdline) {
- g_free(cmdline);
- return;
- }
-
- while (!done) {
- if (!prompted) {
- printf("%s", get_prompt());
- fflush(stdout);
- qemu_set_fd_handler(STDIN_FILENO, prep_fetchline, NULL, &fetchable);
- prompted = 1;
- }
-
- main_loop_wait(false);
-
- if (!fetchable) {
- continue;
- }
- input = fetchline();
- if (input == NULL) {
- break;
- }
- v = breakline(input, &c);
- if (c) {
- ct = find_command(v[0]);
- if (ct) {
- done = command(ct, c, v);
- } else {
- fprintf(stderr, _("command \"%s\" not found\n"), v[0]);
- }
- }
- doneline(input, v);
-
- prompted = 0;
- fetchable = 0;
- }
- qemu_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL);
-}
-
-/* from libxcmd/input.c */
-
-#if defined(ENABLE_READLINE)
-# include <readline/history.h>
-# include <readline/readline.h>
-#elif defined(ENABLE_EDITLINE)
-# include <histedit.h>
-#endif
-
-static char *
-get_prompt(void)
-{
- static char prompt[FILENAME_MAX + 2 /*"> "*/ + 1 /*"\0"*/ ];
-
- if (!prompt[0])
- snprintf(prompt, sizeof(prompt), "%s> ", progname);
- return prompt;
-}
-
-#if defined(ENABLE_READLINE)
-char *
-fetchline(void)
-{
- char *line;
-
- line = readline(get_prompt());
- if (line && *line)
- add_history(line);
- return line;
-}
-#elif defined(ENABLE_EDITLINE)
-static char *el_get_prompt(EditLine *e) { return get_prompt(); }
-char *
-fetchline(void)
-{
- static EditLine *el;
- static History *hist;
- HistEvent hevent;
- char *line;
- int count;
-
- if (!el) {
- hist = history_init();
- history(hist, &hevent, H_SETSIZE, 100);
- el = el_init(progname, stdin, stdout, stderr);
- el_source(el, NULL);
- el_set(el, EL_SIGNAL, 1);
- el_set(el, EL_PROMPT, el_get_prompt);
- el_set(el, EL_HIST, history, (const char *)hist);
- }
- line = strdup(el_gets(el, &count));
- if (line) {
- if (count > 0)
- line[count-1] = '\0';
- if (*line)
- history(hist, &hevent, H_ENTER, line);
- }
- return line;
-}
-#else
-# define MAXREADLINESZ 1024
-char *
-fetchline(void)
-{
- char *p, *line = malloc(MAXREADLINESZ);
-
- if (!line)
- return NULL;
- if (!fgets(line, MAXREADLINESZ, stdin)) {
- free(line);
- return NULL;
- }
- p = line + strlen(line);
- if (p != line && p[-1] == '\n')
- p[-1] = '\0';
- return line;
-}
-#endif
-
-static char *qemu_strsep(char **input, const char *delim)
-{
- char *result = *input;
- if (result != NULL) {
- char *p;
-
- for (p = result; *p != '\0'; p++) {
- if (strchr(delim, *p)) {
- break;
- }
- }
- if (*p == '\0') {
- *input = NULL;
- } else {
- *p = '\0';
- *input = p + 1;
- }
- }
- return result;
-}
-
-char **breakline(char *input, int *count)
-{
- int c = 0;
- char *p;
- char **rval = calloc(sizeof(char *), 1);
- char **tmp;
-
- while (rval && (p = qemu_strsep(&input, " ")) != NULL) {
- if (!*p) {
- continue;
- }
- c++;
- tmp = realloc(rval, sizeof(*rval) * (c + 1));
- if (!tmp) {
- free(rval);
- rval = NULL;
- c = 0;
- break;
- } else {
- rval = tmp;
- }
- rval[c - 1] = p;
- rval[c] = NULL;
- }
- *count = c;
- return rval;
-}
-
-void
-doneline(
- char *input,
- char **vec)
-{
- free(input);
- free(vec);
-}
-
-#define EXABYTES(x) ((long long)(x) << 60)
-#define PETABYTES(x) ((long long)(x) << 50)
-#define TERABYTES(x) ((long long)(x) << 40)
-#define GIGABYTES(x) ((long long)(x) << 30)
-#define MEGABYTES(x) ((long long)(x) << 20)
-#define KILOBYTES(x) ((long long)(x) << 10)
-
-long long
-cvtnum(
- char *s)
-{
- long long i;
- char *sp;
- int c;
-
- i = strtoll(s, &sp, 0);
- if (i == 0 && sp == s)
- return -1LL;
- if (*sp == '\0')
- return i;
-
- if (sp[1] != '\0')
- return -1LL;
-
- c = qemu_tolower(*sp);
- switch (c) {
- default:
- return i;
- case 'k':
- return KILOBYTES(i);
- case 'm':
- return MEGABYTES(i);
- case 'g':
- return GIGABYTES(i);
- case 't':
- return TERABYTES(i);
- case 'p':
- return PETABYTES(i);
- case 'e':
- return EXABYTES(i);
- }
- return -1LL;
-}
-
-#define TO_EXABYTES(x) ((x) / EXABYTES(1))
-#define TO_PETABYTES(x) ((x) / PETABYTES(1))
-#define TO_TERABYTES(x) ((x) / TERABYTES(1))
-#define TO_GIGABYTES(x) ((x) / GIGABYTES(1))
-#define TO_MEGABYTES(x) ((x) / MEGABYTES(1))
-#define TO_KILOBYTES(x) ((x) / KILOBYTES(1))
-
-void
-cvtstr(
- double value,
- char *str,
- size_t size)
-{
- char *trim;
- const char *suffix;
-
- if (value >= EXABYTES(1)) {
- suffix = " EiB";
- snprintf(str, size - 4, "%.3f", TO_EXABYTES(value));
- } else if (value >= PETABYTES(1)) {
- suffix = " PiB";
- snprintf(str, size - 4, "%.3f", TO_PETABYTES(value));
- } else if (value >= TERABYTES(1)) {
- suffix = " TiB";
- snprintf(str, size - 4, "%.3f", TO_TERABYTES(value));
- } else if (value >= GIGABYTES(1)) {
- suffix = " GiB";
- snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value));
- } else if (value >= MEGABYTES(1)) {
- suffix = " MiB";
- snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value));
- } else if (value >= KILOBYTES(1)) {
- suffix = " KiB";
- snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value));
- } else {
- suffix = " bytes";
- snprintf(str, size - 6, "%f", value);
- }
-
- trim = strstr(str, ".000");
- if (trim) {
- strcpy(trim, suffix);
- } else {
- strcat(str, suffix);
- }
-}
-
-struct timeval
-tsub(struct timeval t1, struct timeval t2)
-{
- t1.tv_usec -= t2.tv_usec;
- if (t1.tv_usec < 0) {
- t1.tv_usec += 1000000;
- t1.tv_sec--;
- }
- t1.tv_sec -= t2.tv_sec;
- return t1;
-}
-
-double
-tdiv(double value, struct timeval tv)
-{
- return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0));
-}
-
-#define HOURS(sec) ((sec) / (60 * 60))
-#define MINUTES(sec) (((sec) % (60 * 60)) / 60)
-#define SECONDS(sec) ((sec) % 60)
-
-void
-timestr(
- struct timeval *tv,
- char *ts,
- size_t size,
- int format)
-{
- double usec = (double)tv->tv_usec / 1000000.0;
-
- if (format & TERSE_FIXED_TIME) {
- if (!HOURS(tv->tv_sec)) {
- snprintf(ts, size, "%u:%02u.%02u",
- (unsigned int) MINUTES(tv->tv_sec),
- (unsigned int) SECONDS(tv->tv_sec),
- (unsigned int) (usec * 100));
- return;
- }
- format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */
- }
-
- if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) {
- snprintf(ts, size, "%u:%02u:%02u.%02u",
- (unsigned int) HOURS(tv->tv_sec),
- (unsigned int) MINUTES(tv->tv_sec),
- (unsigned int) SECONDS(tv->tv_sec),
- (unsigned int) (usec * 100));
- } else {
- snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000));
- }
-}
-
-
-/* from libxcmd/quit.c */
-
-static cmdinfo_t quit_cmd;
-
-/* ARGSUSED */
-static int
-quit_f(
- int argc,
- char **argv)
-{
- return 1;
-}
-
-void
-quit_init(void)
-{
- quit_cmd.name = _("quit");
- quit_cmd.altname = _("q");
- quit_cmd.cfunc = quit_f;
- quit_cmd.argmin = -1;
- quit_cmd.argmax = -1;
- quit_cmd.flags = CMD_FLAG_GLOBAL;
- quit_cmd.oneline = _("exit the program");
-
- add_command(&quit_cmd);
-}
-
-/* from libxcmd/help.c */
-
-static cmdinfo_t help_cmd;
-static void help_onecmd(const char *cmd, const cmdinfo_t *ct);
-static void help_oneline(const char *cmd, const cmdinfo_t *ct);
-
-static void
-help_all(void)
-{
- const cmdinfo_t *ct;
-
- for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++)
- help_oneline(ct->name, ct);
- printf(_("\nUse 'help commandname' for extended help.\n"));
-}
-
-static int
-help_f(
- int argc,
- char **argv)
-{
- const cmdinfo_t *ct;
-
- if (argc == 1) {
- help_all();
- return 0;
- }
- ct = find_command(argv[1]);
- if (ct == NULL) {
- printf(_("command %s not found\n"), argv[1]);
- return 0;
- }
- help_onecmd(argv[1], ct);
- return 0;
-}
-
-static void
-help_onecmd(
- const char *cmd,
- const cmdinfo_t *ct)
-{
- help_oneline(cmd, ct);
- if (ct->help)
- ct->help();
-}
-
-static void
-help_oneline(
- const char *cmd,
- const cmdinfo_t *ct)
-{
- if (cmd)
- printf("%s ", cmd);
- else {
- printf("%s ", ct->name);
- if (ct->altname)
- printf("(or %s) ", ct->altname);
- }
- if (ct->args)
- printf("%s ", ct->args);
- printf("-- %s\n", ct->oneline);
-}
-
-void
-help_init(void)
-{
- help_cmd.name = _("help");
- help_cmd.altname = _("?");
- help_cmd.cfunc = help_f;
- help_cmd.argmin = 0;
- help_cmd.argmax = 1;
- help_cmd.flags = CMD_FLAG_GLOBAL;
- help_cmd.args = _("[command]");
- help_cmd.oneline = _("help for one or all commands");
-
- add_command(&help_cmd);
-}
diff --git a/cmd.h b/cmd.h
deleted file mode 100644
index b763b198c4..0000000000
--- a/cmd.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Copyright (c) 2000-2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef __COMMAND_H__
-#define __COMMAND_H__
-
-#define CMD_FLAG_GLOBAL ((int)0x80000000) /* don't iterate "args" */
-
-typedef int (*cfunc_t)(int argc, char **argv);
-typedef void (*helpfunc_t)(void);
-
-typedef struct cmdinfo {
- const char *name;
- const char *altname;
- cfunc_t cfunc;
- int argmin;
- int argmax;
- int canpush;
- int flags;
- const char *args;
- const char *oneline;
- helpfunc_t help;
-} cmdinfo_t;
-
-extern cmdinfo_t *cmdtab;
-extern int ncmds;
-
-void help_init(void);
-void quit_init(void);
-
-typedef int (*argsfunc_t)(int index);
-typedef int (*checkfunc_t)(const cmdinfo_t *ci);
-
-void add_command(const cmdinfo_t *ci);
-void add_user_command(char *optarg);
-void add_args_command(argsfunc_t af);
-void add_check_command(checkfunc_t cf);
-
-const cmdinfo_t *find_command(const char *cmd);
-
-void command_loop(void);
-int command_usage(const cmdinfo_t *ci);
-int command(const cmdinfo_t *ci, int argc, char **argv);
-
-/* from input.h */
-char **breakline(char *input, int *count);
-void doneline(char *input, char **vec);
-char *fetchline(void);
-
-long long cvtnum(char *s);
-void cvtstr(double value, char *str, size_t sz);
-
-struct timeval tsub(struct timeval t1, struct timeval t2);
-double tdiv(double value, struct timeval tv);
-
-enum {
- DEFAULT_TIME = 0x0,
- TERSE_FIXED_TIME = 0x1,
- VERBOSE_FIXED_TIME = 0x2
-};
-
-void timestr(struct timeval *tv, char *str, size_t sz, int flags);
-
-extern char *progname;
-
-#endif /* __COMMAND_H__ */
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 9cea4151b9..396691a5d6 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -185,6 +185,8 @@ Remove host block device. The result is that guest generated IO is no longer
submitted against the host device underlying the disk. Once a drive has
been deleted, the QEMU Block layer returns -EIO which results in IO
errors in the guest for applications that are reading/writing to the device.
+These errors are always reported to the guest, regardless of the drive's error
+actions (drive options rerror, werror).
ETEXI
{
@@ -1551,6 +1553,22 @@ Removes the chardev @var{id}.
ETEXI
{
+ .name = "qemu-io",
+ .args_type = "device:B,command:s",
+ .params = "[device] \"[command]\"",
+ .help = "run a qemu-io command on a block device",
+ .mhandler.cmd = hmp_qemu_io,
+ },
+
+STEXI
+@item qemu-io @var{device} @var{command}
+@findex qemu-io
+
+Executes a qemu-io command on the given block device.
+
+ETEXI
+
+ {
.name = "info",
.args_type = "item:s?",
.params = "[subcommand]",
diff --git a/hmp.c b/hmp.c
index 4fb76ec7a7..494a9aa459 100644
--- a/hmp.c
+++ b/hmp.c
@@ -22,6 +22,8 @@
#include "qemu/sockets.h"
#include "monitor/monitor.h"
#include "ui/console.h"
+#include "block/qapi.h"
+#include "qemu-io.h"
static void hmp_handle_error(Monitor *mon, Error **errp)
{
@@ -277,10 +279,16 @@ void hmp_info_cpus(Monitor *mon, const QDict *qdict)
void hmp_info_block(Monitor *mon, const QDict *qdict)
{
BlockInfoList *block_list, *info;
+ ImageInfo *image_info;
+ const char *device = qdict_get_try_str(qdict, "device");
+ bool verbose = qdict_get_try_bool(qdict, "verbose", 0);
block_list = qmp_query_block(NULL);
for (info = block_list; info; info = info->next) {
+ if (device && strcmp(device, info->value->device)) {
+ continue;
+ }
monitor_printf(mon, "%s: removable=%d",
info->value->device, info->value->removable);
@@ -318,6 +326,20 @@ void hmp_info_block(Monitor *mon, const QDict *qdict)
info->value->inserted->iops,
info->value->inserted->iops_rd,
info->value->inserted->iops_wr);
+
+ if (verbose) {
+ monitor_printf(mon, " images:\n");
+ image_info = info->value->inserted->image;
+ while (1) {
+ bdrv_image_info_dump((fprintf_function)monitor_printf,
+ mon, image_info);
+ if (image_info->has_backing_image) {
+ image_info = image_info->backing_image;
+ } else {
+ break;
+ }
+ }
+ }
} else {
monitor_printf(mon, " [not inserted]");
}
@@ -1425,3 +1447,20 @@ void hmp_chardev_remove(Monitor *mon, const QDict *qdict)
qmp_chardev_remove(qdict_get_str(qdict, "id"), &local_err);
hmp_handle_error(mon, &local_err);
}
+
+void hmp_qemu_io(Monitor *mon, const QDict *qdict)
+{
+ BlockDriverState *bs;
+ const char* device = qdict_get_str(qdict, "device");
+ const char* command = qdict_get_str(qdict, "command");
+ Error *err = NULL;
+
+ bs = bdrv_find(device);
+ if (bs) {
+ qemuio_command(bs, command);
+ } else {
+ error_set(&err, QERR_DEVICE_NOT_FOUND, device);
+ }
+
+ hmp_handle_error(mon, &err);
+}
diff --git a/hmp.h b/hmp.h
index 95fe76e218..56d2e92aa6 100644
--- a/hmp.h
+++ b/hmp.h
@@ -85,5 +85,6 @@ void hmp_nbd_server_add(Monitor *mon, const QDict *qdict);
void hmp_nbd_server_stop(Monitor *mon, const QDict *qdict);
void hmp_chardev_add(Monitor *mon, const QDict *qdict);
void hmp_chardev_remove(Monitor *mon, const QDict *qdict);
+void hmp_qemu_io(Monitor *mon, const QDict *qdict);
#endif
diff --git a/hw/ide/core.c b/hw/ide/core.c
index c7a80413be..9926d9202b 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -814,6 +814,7 @@ void ide_flush_cache(IDEState *s)
return;
}
+ s->status |= BUSY_STAT;
bdrv_acct_start(s->bs, &s->acct, 0, BDRV_ACCT_FLUSH);
bdrv_aio_flush(s->bs, ide_flush_cb, s);
}
diff --git a/include/block/block.h b/include/block/block.h
index dc5b388d87..2307f67b0e 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -424,6 +424,9 @@ typedef enum {
BLKDBG_CLUSTER_ALLOC_BYTES,
BLKDBG_CLUSTER_FREE,
+ BLKDBG_FLUSH_TO_OS,
+ BLKDBG_FLUSH_TO_DISK,
+
BLKDBG_EVENT_MAX,
} BlkDebugEvent;
diff --git a/include/block/qapi.h b/include/block/qapi.h
index e6e568da94..0496cc9282 100644
--- a/include/block/qapi.h
+++ b/include/block/qapi.h
@@ -29,11 +29,15 @@
#include "block/block.h"
#include "block/snapshot.h"
-void bdrv_collect_snapshots(BlockDriverState *bs , ImageInfo *info);
-void bdrv_collect_image_info(BlockDriverState *bs,
- ImageInfo *info,
- const char *filename);
-BlockInfo *bdrv_query_info(BlockDriverState *s);
+int bdrv_query_snapshot_info_list(BlockDriverState *bs,
+ SnapshotInfoList **p_list,
+ Error **errp);
+void bdrv_query_image_info(BlockDriverState *bs,
+ ImageInfo **p_info,
+ Error **errp);
+void bdrv_query_info(BlockDriverState *bs,
+ BlockInfo **p_info,
+ Error **errp);
BlockStats *bdrv_query_stats(const BlockDriverState *bs);
void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f,
diff --git a/include/qemu-common.h b/include/qemu-common.h
index cb82ef3d42..ed8b6e2005 100644
--- a/include/qemu-common.h
+++ b/include/qemu-common.h
@@ -174,6 +174,7 @@ char *pstrcat(char *buf, int buf_size, const char *s);
int strstart(const char *str, const char *val, const char **ptr);
int stristart(const char *str, const char *val, const char **ptr);
int qemu_strnlen(const char *s, int max_len);
+char *qemu_strsep(char **input, const char *delim);
time_t mktimegm(struct tm *tm);
int qemu_fls(int i);
int qemu_fdatasync(int fd);
@@ -191,6 +192,8 @@ int parse_uint_full(const char *s, unsigned long long *value, int base);
* A-Z, as strtosz() will use qemu_toupper() on the given argument
* prior to comparison.
*/
+#define STRTOSZ_DEFSUFFIX_EB 'E'
+#define STRTOSZ_DEFSUFFIX_PB 'P'
#define STRTOSZ_DEFSUFFIX_TB 'T'
#define STRTOSZ_DEFSUFFIX_GB 'G'
#define STRTOSZ_DEFSUFFIX_MB 'M'
diff --git a/include/qemu-io.h b/include/qemu-io.h
new file mode 100644
index 0000000000..a418b46a40
--- /dev/null
+++ b/include/qemu-io.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef QEMU_IO_H
+#define QEMU_IO_H
+
+#include "qemu-common.h"
+
+#define CMD_FLAG_GLOBAL ((int)0x80000000) /* don't iterate "args" */
+
+typedef int (*cfunc_t)(BlockDriverState *bs, int argc, char **argv);
+typedef void (*helpfunc_t)(void);
+
+typedef struct cmdinfo {
+ const char* name;
+ const char* altname;
+ cfunc_t cfunc;
+ int argmin;
+ int argmax;
+ int canpush;
+ int flags;
+ const char *args;
+ const char *oneline;
+ helpfunc_t help;
+} cmdinfo_t;
+
+bool qemuio_command(BlockDriverState *bs, const char *cmd);
+
+void qemuio_add_command(const cmdinfo_t *ci);
+int qemuio_command_usage(const cmdinfo_t *ci);
+
+#endif /* QEMU_IO_H */
diff --git a/monitor.c b/monitor.c
index eefc7f083f..017411fcb0 100644
--- a/monitor.c
+++ b/monitor.c
@@ -93,10 +93,10 @@
* 'M' Non-negative target long (32 or 64 bit), in user mode the
* value is multiplied by 2^20 (think Mebibyte)
* 'o' octets (aka bytes)
- * user mode accepts an optional T, t, G, g, M, m, K, k
- * suffix, which multiplies the value by 2^40 for
- * suffixes T and t, 2^30 for suffixes G and g, 2^20 for
- * M and m, 2^10 for K and k
+ * user mode accepts an optional E, e, P, p, T, t, G, g, M, m,
+ * K, k suffix, which multiplies the value by 2^60 for suffixes E
+ * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t,
+ * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k
* 'T' double
* user mode accepts an optional ms, us, ns suffix,
* which divides the value by 1e3, 1e6, 1e9, respectively
@@ -2472,9 +2472,10 @@ static mon_cmd_t info_cmds[] = {
},
{
.name = "block",
- .args_type = "",
- .params = "",
- .help = "show the block devices",
+ .args_type = "verbose:-v,device:B?",
+ .params = "[-v] [device]",
+ .help = "show info of one block device or all block devices "
+ "(and details of images with -v option)",
.mhandler.cmd = hmp_info_block,
},
{
diff --git a/qapi-schema.json b/qapi-schema.json
index ef1f657efb..5ad6894738 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -236,6 +236,8 @@
#
# @snapshots: #optional list of VM snapshots
#
+# @backing-image: #optional info of the backing image (since 1.6)
+#
# Since: 1.3
#
##
@@ -245,7 +247,8 @@
'*actual-size': 'int', 'virtual-size': 'int',
'*cluster-size': 'int', '*encrypted': 'bool',
'*backing-filename': 'str', '*full-backing-filename': 'str',
- '*backing-filename-format': 'str', '*snapshots': ['SnapshotInfo'] } }
+ '*backing-filename-format': 'str', '*snapshots': ['SnapshotInfo'],
+ '*backing-image': 'ImageInfo' } }
##
# @ImageCheck:
@@ -756,6 +759,8 @@
#
# @iops_wr: write I/O operations per second is specified
#
+# @image: the info of image used (since: 1.6)
+#
# Since: 0.14.0
#
# Notes: This interface is only found in @BlockInfo.
@@ -765,7 +770,8 @@
'*backing_file': 'str', 'backing_file_depth': 'int',
'encrypted': 'bool', 'encryption_key_missing': 'bool',
'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int',
- 'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int'} }
+ 'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int',
+ 'image': 'ImageInfo' } }
##
# @BlockDeviceIoStatus:
diff --git a/qemu-img.c b/qemu-img.c
index 82c7977353..809b4f1c00 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -85,8 +85,9 @@ static void help(void)
" options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n"
" 'directsync' and 'unsafe' (default for convert)\n"
" 'size' is the disk image size in bytes. Optional suffixes\n"
- " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M)\n"
- " and T (terabyte, 1024G) are supported. 'b' is ignored.\n"
+ " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M),\n"
+ " 'T' (terabyte, 1024G), 'P' (petabyte, 1024T) and 'E' (exabyte, 1024P) are\n"
+ " supported. 'b' is ignored.\n"
" 'output_filename' is the destination disk image filename\n"
" 'output_fmt' is the destination format\n"
" 'options' is a comma separated list of format specific options in a\n"
@@ -387,8 +388,9 @@ static int img_create(int argc, char **argv)
error_report("Image size must be less than 8 EiB!");
} else {
error_report("Invalid image size specified! You may use k, M, "
- "G or T suffixes for ");
- error_report("kilobytes, megabytes, gigabytes and terabytes.");
+ "G, T, P or E suffixes for ");
+ error_report("kilobytes, megabytes, gigabytes, terabytes, "
+ "petabytes and exabytes.");
}
return 1;
}
@@ -1642,6 +1644,7 @@ static ImageInfoList *collect_image_info_list(const char *filename,
ImageInfoList *head = NULL;
ImageInfoList **last = &head;
GHashTable *filenames;
+ Error *err = NULL;
filenames = g_hash_table_new_full(g_str_hash, str_equal_func, NULL, NULL);
@@ -1663,9 +1666,12 @@ static ImageInfoList *collect_image_info_list(const char *filename,
goto err;
}
- info = g_new0(ImageInfo, 1);
- bdrv_collect_image_info(bs, info, filename);
- bdrv_collect_snapshots(bs, info);
+ bdrv_query_image_info(bs, &info, &err);
+ if (error_is_set(&err)) {
+ error_report("%s", error_get_pretty(err));
+ error_free(err);
+ goto err;
+ }
elem = g_new0(ImageInfoList, 1);
elem->value = info;
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
new file mode 100644
index 0000000000..ffbcf31cfc
--- /dev/null
+++ b/qemu-io-cmds.c
@@ -0,0 +1,2118 @@
+/*
+ * Command line utility to exercise the QEMU I/O path.
+ *
+ * Copyright (C) 2009 Red Hat, Inc.
+ * Copyright (c) 2003-2005 Silicon Graphics, Inc.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu-io.h"
+#include "block/block_int.h"
+
+#define CMD_NOFILE_OK 0x01
+
+int qemuio_misalign;
+
+static cmdinfo_t *cmdtab;
+static int ncmds;
+
+static int compare_cmdname(const void *a, const void *b)
+{
+ return strcmp(((const cmdinfo_t *)a)->name,
+ ((const cmdinfo_t *)b)->name);
+}
+
+void qemuio_add_command(const cmdinfo_t *ci)
+{
+ cmdtab = g_realloc(cmdtab, ++ncmds * sizeof(*cmdtab));
+ cmdtab[ncmds - 1] = *ci;
+ qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname);
+}
+
+int qemuio_command_usage(const cmdinfo_t *ci)
+{
+ printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline);
+ return 0;
+}
+
+static int init_check_command(BlockDriverState *bs, const cmdinfo_t *ct)
+{
+ if (ct->flags & CMD_FLAG_GLOBAL) {
+ return 1;
+ }
+ if (!(ct->flags & CMD_NOFILE_OK) && !bs) {
+ fprintf(stderr, "no file open, try 'help open'\n");
+ return 0;
+ }
+ return 1;
+}
+
+static int command(BlockDriverState *bs, const cmdinfo_t *ct, int argc,
+ char **argv)
+{
+ char *cmd = argv[0];
+
+ if (!init_check_command(bs, ct)) {
+ return 0;
+ }
+
+ if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) {
+ if (ct->argmax == -1) {
+ fprintf(stderr,
+ "bad argument count %d to %s, expected at least %d arguments\n",
+ argc-1, cmd, ct->argmin);
+ } else if (ct->argmin == ct->argmax) {
+ fprintf(stderr,
+ "bad argument count %d to %s, expected %d arguments\n",
+ argc-1, cmd, ct->argmin);
+ } else {
+ fprintf(stderr,
+ "bad argument count %d to %s, expected between %d and %d arguments\n",
+ argc-1, cmd, ct->argmin, ct->argmax);
+ }
+ return 0;
+ }
+ optind = 0;
+ return ct->cfunc(bs, argc, argv);
+}
+
+static const cmdinfo_t *find_command(const char *cmd)
+{
+ cmdinfo_t *ct;
+
+ for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) {
+ if (strcmp(ct->name, cmd) == 0 ||
+ (ct->altname && strcmp(ct->altname, cmd) == 0))
+ {
+ return (const cmdinfo_t *)ct;
+ }
+ }
+ return NULL;
+}
+
+static char **breakline(char *input, int *count)
+{
+ int c = 0;
+ char *p;
+ char **rval = g_malloc0(sizeof(char *));
+ char **tmp;
+
+ while (rval && (p = qemu_strsep(&input, " ")) != NULL) {
+ if (!*p) {
+ continue;
+ }
+ c++;
+ tmp = g_realloc(rval, sizeof(*rval) * (c + 1));
+ if (!tmp) {
+ g_free(rval);
+ rval = NULL;
+ c = 0;
+ break;
+ } else {
+ rval = tmp;
+ }
+ rval[c - 1] = p;
+ rval[c] = NULL;
+ }
+ *count = c;
+ return rval;
+}
+
+static int64_t cvtnum(const char *s)
+{
+ char *end;
+ return strtosz_suffix(s, &end, STRTOSZ_DEFSUFFIX_B);
+}
+
+#define EXABYTES(x) ((long long)(x) << 60)
+#define PETABYTES(x) ((long long)(x) << 50)
+#define TERABYTES(x) ((long long)(x) << 40)
+#define GIGABYTES(x) ((long long)(x) << 30)
+#define MEGABYTES(x) ((long long)(x) << 20)
+#define KILOBYTES(x) ((long long)(x) << 10)
+
+#define TO_EXABYTES(x) ((x) / EXABYTES(1))
+#define TO_PETABYTES(x) ((x) / PETABYTES(1))
+#define TO_TERABYTES(x) ((x) / TERABYTES(1))
+#define TO_GIGABYTES(x) ((x) / GIGABYTES(1))
+#define TO_MEGABYTES(x) ((x) / MEGABYTES(1))
+#define TO_KILOBYTES(x) ((x) / KILOBYTES(1))
+
+static void cvtstr(double value, char *str, size_t size)
+{
+ char *trim;
+ const char *suffix;
+
+ if (value >= EXABYTES(1)) {
+ suffix = " EiB";
+ snprintf(str, size - 4, "%.3f", TO_EXABYTES(value));
+ } else if (value >= PETABYTES(1)) {
+ suffix = " PiB";
+ snprintf(str, size - 4, "%.3f", TO_PETABYTES(value));
+ } else if (value >= TERABYTES(1)) {
+ suffix = " TiB";
+ snprintf(str, size - 4, "%.3f", TO_TERABYTES(value));
+ } else if (value >= GIGABYTES(1)) {
+ suffix = " GiB";
+ snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value));
+ } else if (value >= MEGABYTES(1)) {
+ suffix = " MiB";
+ snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value));
+ } else if (value >= KILOBYTES(1)) {
+ suffix = " KiB";
+ snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value));
+ } else {
+ suffix = " bytes";
+ snprintf(str, size - 6, "%f", value);
+ }
+
+ trim = strstr(str, ".000");
+ if (trim) {
+ strcpy(trim, suffix);
+ } else {
+ strcat(str, suffix);
+ }
+}
+
+
+
+static struct timeval tsub(struct timeval t1, struct timeval t2)
+{
+ t1.tv_usec -= t2.tv_usec;
+ if (t1.tv_usec < 0) {
+ t1.tv_usec += 1000000;
+ t1.tv_sec--;
+ }
+ t1.tv_sec -= t2.tv_sec;
+ return t1;
+}
+
+static double tdiv(double value, struct timeval tv)
+{
+ return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0));
+}
+
+#define HOURS(sec) ((sec) / (60 * 60))
+#define MINUTES(sec) (((sec) % (60 * 60)) / 60)
+#define SECONDS(sec) ((sec) % 60)
+
+enum {
+ DEFAULT_TIME = 0x0,
+ TERSE_FIXED_TIME = 0x1,
+ VERBOSE_FIXED_TIME = 0x2,
+};
+
+static void timestr(struct timeval *tv, char *ts, size_t size, int format)
+{
+ double usec = (double)tv->tv_usec / 1000000.0;
+
+ if (format & TERSE_FIXED_TIME) {
+ if (!HOURS(tv->tv_sec)) {
+ snprintf(ts, size, "%u:%02u.%02u",
+ (unsigned int) MINUTES(tv->tv_sec),
+ (unsigned int) SECONDS(tv->tv_sec),
+ (unsigned int) (usec * 100));
+ return;
+ }
+ format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */
+ }
+
+ if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) {
+ snprintf(ts, size, "%u:%02u:%02u.%02u",
+ (unsigned int) HOURS(tv->tv_sec),
+ (unsigned int) MINUTES(tv->tv_sec),
+ (unsigned int) SECONDS(tv->tv_sec),
+ (unsigned int) (usec * 100));
+ } else {
+ snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000));
+ }
+}
+
+/*
+ * Parse the pattern argument to various sub-commands.
+ *
+ * Because the pattern is used as an argument to memset it must evaluate
+ * to an unsigned integer that fits into a single byte.
+ */
+static int parse_pattern(const char *arg)
+{
+ char *endptr = NULL;
+ long pattern;
+
+ pattern = strtol(arg, &endptr, 0);
+ if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') {
+ printf("%s is not a valid pattern byte\n", arg);
+ return -1;
+ }
+
+ return pattern;
+}
+
+/*
+ * Memory allocation helpers.
+ *
+ * Make sure memory is aligned by default, or purposefully misaligned if
+ * that is specified on the command line.
+ */
+
+#define MISALIGN_OFFSET 16
+static void *qemu_io_alloc(BlockDriverState *bs, size_t len, int pattern)
+{
+ void *buf;
+
+ if (qemuio_misalign) {
+ len += MISALIGN_OFFSET;
+ }
+ buf = qemu_blockalign(bs, len);
+ memset(buf, pattern, len);
+ if (qemuio_misalign) {
+ buf += MISALIGN_OFFSET;
+ }
+ return buf;
+}
+
+static void qemu_io_free(void *p)
+{
+ if (qemuio_misalign) {
+ p -= MISALIGN_OFFSET;
+ }
+ qemu_vfree(p);
+}
+
+static void dump_buffer(const void *buffer, int64_t offset, int len)
+{
+ int i, j;
+ const uint8_t *p;
+
+ for (i = 0, p = buffer; i < len; i += 16) {
+ const uint8_t *s = p;
+
+ printf("%08" PRIx64 ": ", offset + i);
+ for (j = 0; j < 16 && i + j < len; j++, p++) {
+ printf("%02x ", *p);
+ }
+ printf(" ");
+ for (j = 0; j < 16 && i + j < len; j++, s++) {
+ if (isalnum(*s)) {
+ printf("%c", *s);
+ } else {
+ printf(".");
+ }
+ }
+ printf("\n");
+ }
+}
+
+static void print_report(const char *op, struct timeval *t, int64_t offset,
+ int count, int total, int cnt, int Cflag)
+{
+ char s1[64], s2[64], ts[64];
+
+ timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0);
+ if (!Cflag) {
+ cvtstr((double)total, s1, sizeof(s1));
+ cvtstr(tdiv((double)total, *t), s2, sizeof(s2));
+ printf("%s %d/%d bytes at offset %" PRId64 "\n",
+ op, total, count, offset);
+ printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n",
+ s1, cnt, ts, s2, tdiv((double)cnt, *t));
+ } else {/* bytes,ops,time,bytes/sec,ops/sec */
+ printf("%d,%d,%s,%.3f,%.3f\n",
+ total, cnt, ts,
+ tdiv((double)total, *t),
+ tdiv((double)cnt, *t));
+ }
+}
+
+/*
+ * Parse multiple length statements for vectored I/O, and construct an I/O
+ * vector matching it.
+ */
+static void *
+create_iovec(BlockDriverState *bs, QEMUIOVector *qiov, char **argv, int nr_iov,
+ int pattern)
+{
+ size_t *sizes = g_new0(size_t, nr_iov);
+ size_t count = 0;
+ void *buf = NULL;
+ void *p;
+ int i;
+
+ for (i = 0; i < nr_iov; i++) {
+ char *arg = argv[i];
+ int64_t len;
+
+ len = cvtnum(arg);
+ if (len < 0) {
+ printf("non-numeric length argument -- %s\n", arg);
+ goto fail;
+ }
+
+ /* should be SIZE_T_MAX, but that doesn't exist */
+ if (len > INT_MAX) {
+ printf("too large length argument -- %s\n", arg);
+ goto fail;
+ }
+
+ if (len & 0x1ff) {
+ printf("length argument %" PRId64
+ " is not sector aligned\n", len);
+ goto fail;
+ }
+
+ sizes[i] = len;
+ count += len;
+ }
+
+ qemu_iovec_init(qiov, nr_iov);
+
+ buf = p = qemu_io_alloc(bs, count, pattern);
+
+ for (i = 0; i < nr_iov; i++) {
+ qemu_iovec_add(qiov, p, sizes[i]);
+ p += sizes[i];
+ }
+
+fail:
+ g_free(sizes);
+ return buf;
+}
+
+static int do_read(BlockDriverState *bs, char *buf, int64_t offset, int count,
+ int *total)
+{
+ int ret;
+
+ ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9);
+ if (ret < 0) {
+ return ret;
+ }
+ *total = count;
+ return 1;
+}
+
+static int do_write(BlockDriverState *bs, char *buf, int64_t offset, int count,
+ int *total)
+{
+ int ret;
+
+ ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9);
+ if (ret < 0) {
+ return ret;
+ }
+ *total = count;
+ return 1;
+}
+
+static int do_pread(BlockDriverState *bs, char *buf, int64_t offset, int count,
+ int *total)
+{
+ *total = bdrv_pread(bs, offset, (uint8_t *)buf, count);
+ if (*total < 0) {
+ return *total;
+ }
+ return 1;
+}
+
+static int do_pwrite(BlockDriverState *bs, char *buf, int64_t offset, int count,
+ int *total)
+{
+ *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count);
+ if (*total < 0) {
+ return *total;
+ }
+ return 1;
+}
+
+typedef struct {
+ BlockDriverState *bs;
+ int64_t offset;
+ int count;
+ int *total;
+ int ret;
+ bool done;
+} CoWriteZeroes;
+
+static void coroutine_fn co_write_zeroes_entry(void *opaque)
+{
+ CoWriteZeroes *data = opaque;
+
+ data->ret = bdrv_co_write_zeroes(data->bs, data->offset / BDRV_SECTOR_SIZE,
+ data->count / BDRV_SECTOR_SIZE);
+ data->done = true;
+ if (data->ret < 0) {
+ *data->total = data->ret;
+ return;
+ }
+
+ *data->total = data->count;
+}
+
+static int do_co_write_zeroes(BlockDriverState *bs, int64_t offset, int count,
+ int *total)
+{
+ Coroutine *co;
+ CoWriteZeroes data = {
+ .bs = bs,
+ .offset = offset,
+ .count = count,
+ .total = total,
+ .done = false,
+ };
+
+ co = qemu_coroutine_create(co_write_zeroes_entry);
+ qemu_coroutine_enter(co, &data);
+ while (!data.done) {
+ qemu_aio_wait();
+ }
+ if (data.ret < 0) {
+ return data.ret;
+ } else {
+ return 1;
+ }
+}
+
+static int do_write_compressed(BlockDriverState *bs, char *buf, int64_t offset,
+ int count, int *total)
+{
+ int ret;
+
+ ret = bdrv_write_compressed(bs, offset >> 9, (uint8_t *)buf, count >> 9);
+ if (ret < 0) {
+ return ret;
+ }
+ *total = count;
+ return 1;
+}
+
+static int do_load_vmstate(BlockDriverState *bs, char *buf, int64_t offset,
+ int count, int *total)
+{
+ *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count);
+ if (*total < 0) {
+ return *total;
+ }
+ return 1;
+}
+
+static int do_save_vmstate(BlockDriverState *bs, char *buf, int64_t offset,
+ int count, int *total)
+{
+ *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count);
+ if (*total < 0) {
+ return *total;
+ }
+ return 1;
+}
+
+#define NOT_DONE 0x7fffffff
+static void aio_rw_done(void *opaque, int ret)
+{
+ *(int *)opaque = ret;
+}
+
+static int do_aio_readv(BlockDriverState *bs, QEMUIOVector *qiov,
+ int64_t offset, int *total)
+{
+ int async_ret = NOT_DONE;
+
+ bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9,
+ aio_rw_done, &async_ret);
+ while (async_ret == NOT_DONE) {
+ main_loop_wait(false);
+ }
+
+ *total = qiov->size;
+ return async_ret < 0 ? async_ret : 1;
+}
+
+static int do_aio_writev(BlockDriverState *bs, QEMUIOVector *qiov,
+ int64_t offset, int *total)
+{
+ int async_ret = NOT_DONE;
+
+ bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9,
+ aio_rw_done, &async_ret);
+ while (async_ret == NOT_DONE) {
+ main_loop_wait(false);
+ }
+
+ *total = qiov->size;
+ return async_ret < 0 ? async_ret : 1;
+}
+
+struct multiwrite_async_ret {
+ int num_done;
+ int error;
+};
+
+static void multiwrite_cb(void *opaque, int ret)
+{
+ struct multiwrite_async_ret *async_ret = opaque;
+
+ async_ret->num_done++;
+ if (ret < 0) {
+ async_ret->error = ret;
+ }
+}
+
+static int do_aio_multiwrite(BlockDriverState *bs, BlockRequest* reqs,
+ int num_reqs, int *total)
+{
+ int i, ret;
+ struct multiwrite_async_ret async_ret = {
+ .num_done = 0,
+ .error = 0,
+ };
+
+ *total = 0;
+ for (i = 0; i < num_reqs; i++) {
+ reqs[i].cb = multiwrite_cb;
+ reqs[i].opaque = &async_ret;
+ *total += reqs[i].qiov->size;
+ }
+
+ ret = bdrv_aio_multiwrite(bs, reqs, num_reqs);
+ if (ret < 0) {
+ return ret;
+ }
+
+ while (async_ret.num_done < num_reqs) {
+ main_loop_wait(false);
+ }
+
+ return async_ret.error < 0 ? async_ret.error : 1;
+}
+
+static void read_help(void)
+{
+ printf(
+"\n"
+" reads a range of bytes from the given offset\n"
+"\n"
+" Example:\n"
+" 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n"
+"\n"
+" Reads a segment of the currently open file, optionally dumping it to the\n"
+" standard output stream (with -v option) for subsequent inspection.\n"
+" -b, -- read from the VM state rather than the virtual disk\n"
+" -C, -- report statistics in a machine parsable format\n"
+" -l, -- length for pattern verification (only with -P)\n"
+" -p, -- use bdrv_pread to read the file\n"
+" -P, -- use a pattern to verify read data\n"
+" -q, -- quiet mode, do not show I/O statistics\n"
+" -s, -- start offset for pattern verification (only with -P)\n"
+" -v, -- dump buffer to standard output\n"
+"\n");
+}
+
+static int read_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t read_cmd = {
+ .name = "read",
+ .altname = "r",
+ .cfunc = read_f,
+ .argmin = 2,
+ .argmax = -1,
+ .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len",
+ .oneline = "reads a number of bytes at a specified offset",
+ .help = read_help,
+};
+
+static int read_f(BlockDriverState *bs, int argc, char **argv)
+{
+ struct timeval t1, t2;
+ int Cflag = 0, pflag = 0, qflag = 0, vflag = 0;
+ int Pflag = 0, sflag = 0, lflag = 0, bflag = 0;
+ int c, cnt;
+ char *buf;
+ int64_t offset;
+ int count;
+ /* Some compilers get confused and warn if this is not initialized. */
+ int total = 0;
+ int pattern = 0, pattern_offset = 0, pattern_count = 0;
+
+ while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) {
+ switch (c) {
+ case 'b':
+ bflag = 1;
+ break;
+ case 'C':
+ Cflag = 1;
+ break;
+ case 'l':
+ lflag = 1;
+ pattern_count = cvtnum(optarg);
+ if (pattern_count < 0) {
+ printf("non-numeric length argument -- %s\n", optarg);
+ return 0;
+ }
+ break;
+ case 'p':
+ pflag = 1;
+ break;
+ case 'P':
+ Pflag = 1;
+ pattern = parse_pattern(optarg);
+ if (pattern < 0) {
+ return 0;
+ }
+ break;
+ case 'q':
+ qflag = 1;
+ break;
+ case 's':
+ sflag = 1;
+ pattern_offset = cvtnum(optarg);
+ if (pattern_offset < 0) {
+ printf("non-numeric length argument -- %s\n", optarg);
+ return 0;
+ }
+ break;
+ case 'v':
+ vflag = 1;
+ break;
+ default:
+ return qemuio_command_usage(&read_cmd);
+ }
+ }
+
+ if (optind != argc - 2) {
+ return qemuio_command_usage(&read_cmd);
+ }
+
+ if (bflag && pflag) {
+ printf("-b and -p cannot be specified at the same time\n");
+ return 0;
+ }
+
+ offset = cvtnum(argv[optind]);
+ if (offset < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ return 0;
+ }
+
+ optind++;
+ count = cvtnum(argv[optind]);
+ if (count < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ return 0;
+ }
+
+ if (!Pflag && (lflag || sflag)) {
+ return qemuio_command_usage(&read_cmd);
+ }
+
+ if (!lflag) {
+ pattern_count = count - pattern_offset;
+ }
+
+ if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) {
+ printf("pattern verification range exceeds end of read data\n");
+ return 0;
+ }
+
+ if (!pflag) {
+ if (offset & 0x1ff) {
+ printf("offset %" PRId64 " is not sector aligned\n",
+ offset);
+ return 0;
+ }
+ if (count & 0x1ff) {
+ printf("count %d is not sector aligned\n",
+ count);
+ return 0;
+ }
+ }
+
+ buf = qemu_io_alloc(bs, count, 0xab);
+
+ gettimeofday(&t1, NULL);
+ if (pflag) {
+ cnt = do_pread(bs, buf, offset, count, &total);
+ } else if (bflag) {
+ cnt = do_load_vmstate(bs, buf, offset, count, &total);
+ } else {
+ cnt = do_read(bs, buf, offset, count, &total);
+ }
+ gettimeofday(&t2, NULL);
+
+ if (cnt < 0) {
+ printf("read failed: %s\n", strerror(-cnt));
+ goto out;
+ }
+
+ if (Pflag) {
+ void *cmp_buf = g_malloc(pattern_count);
+ memset(cmp_buf, pattern, pattern_count);
+ if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) {
+ printf("Pattern verification failed at offset %"
+ PRId64 ", %d bytes\n",
+ offset + pattern_offset, pattern_count);
+ }
+ g_free(cmp_buf);
+ }
+
+ if (qflag) {
+ goto out;
+ }
+
+ if (vflag) {
+ dump_buffer(buf, offset, count);
+ }
+
+ /* Finally, report back -- -C gives a parsable format */
+ t2 = tsub(t2, t1);
+ print_report("read", &t2, offset, count, total, cnt, Cflag);
+
+out:
+ qemu_io_free(buf);
+
+ return 0;
+}
+
+static void readv_help(void)
+{
+ printf(
+"\n"
+" reads a range of bytes from the given offset into multiple buffers\n"
+"\n"
+" Example:\n"
+" 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
+"\n"
+" Reads a segment of the currently open file, optionally dumping it to the\n"
+" standard output stream (with -v option) for subsequent inspection.\n"
+" Uses multiple iovec buffers if more than one byte range is specified.\n"
+" -C, -- report statistics in a machine parsable format\n"
+" -P, -- use a pattern to verify read data\n"
+" -v, -- dump buffer to standard output\n"
+" -q, -- quiet mode, do not show I/O statistics\n"
+"\n");
+}
+
+static int readv_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t readv_cmd = {
+ .name = "readv",
+ .cfunc = readv_f,
+ .argmin = 2,
+ .argmax = -1,
+ .args = "[-Cqv] [-P pattern ] off len [len..]",
+ .oneline = "reads a number of bytes at a specified offset",
+ .help = readv_help,
+};
+
+static int readv_f(BlockDriverState *bs, int argc, char **argv)
+{
+ struct timeval t1, t2;
+ int Cflag = 0, qflag = 0, vflag = 0;
+ int c, cnt;
+ char *buf;
+ int64_t offset;
+ /* Some compilers get confused and warn if this is not initialized. */
+ int total = 0;
+ int nr_iov;
+ QEMUIOVector qiov;
+ int pattern = 0;
+ int Pflag = 0;
+
+ while ((c = getopt(argc, argv, "CP:qv")) != EOF) {
+ switch (c) {
+ case 'C':
+ Cflag = 1;
+ break;
+ case 'P':
+ Pflag = 1;
+ pattern = parse_pattern(optarg);
+ if (pattern < 0) {
+ return 0;
+ }
+ break;
+ case 'q':
+ qflag = 1;
+ break;
+ case 'v':
+ vflag = 1;
+ break;
+ default:
+ return qemuio_command_usage(&readv_cmd);
+ }
+ }
+
+ if (optind > argc - 2) {
+ return qemuio_command_usage(&readv_cmd);
+ }
+
+
+ offset = cvtnum(argv[optind]);
+ if (offset < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ return 0;
+ }
+ optind++;
+
+ if (offset & 0x1ff) {
+ printf("offset %" PRId64 " is not sector aligned\n",
+ offset);
+ return 0;
+ }
+
+ nr_iov = argc - optind;
+ buf = create_iovec(bs, &qiov, &argv[optind], nr_iov, 0xab);
+ if (buf == NULL) {
+ return 0;
+ }
+
+ gettimeofday(&t1, NULL);
+ cnt = do_aio_readv(bs, &qiov, offset, &total);
+ gettimeofday(&t2, NULL);
+
+ if (cnt < 0) {
+ printf("readv failed: %s\n", strerror(-cnt));
+ goto out;
+ }
+
+ if (Pflag) {
+ void *cmp_buf = g_malloc(qiov.size);
+ memset(cmp_buf, pattern, qiov.size);
+ if (memcmp(buf, cmp_buf, qiov.size)) {
+ printf("Pattern verification failed at offset %"
+ PRId64 ", %zd bytes\n", offset, qiov.size);
+ }
+ g_free(cmp_buf);
+ }
+
+ if (qflag) {
+ goto out;
+ }
+
+ if (vflag) {
+ dump_buffer(buf, offset, qiov.size);
+ }
+
+ /* Finally, report back -- -C gives a parsable format */
+ t2 = tsub(t2, t1);
+ print_report("read", &t2, offset, qiov.size, total, cnt, Cflag);
+
+out:
+ qemu_iovec_destroy(&qiov);
+ qemu_io_free(buf);
+ return 0;
+}
+
+static void write_help(void)
+{
+ printf(
+"\n"
+" writes a range of bytes from the given offset\n"
+"\n"
+" Example:\n"
+" 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n"
+"\n"
+" Writes into a segment of the currently open file, using a buffer\n"
+" filled with a set pattern (0xcdcdcdcd).\n"
+" -b, -- write to the VM state rather than the virtual disk\n"
+" -c, -- write compressed data with bdrv_write_compressed\n"
+" -p, -- use bdrv_pwrite to write the file\n"
+" -P, -- use different pattern to fill file\n"
+" -C, -- report statistics in a machine parsable format\n"
+" -q, -- quiet mode, do not show I/O statistics\n"
+" -z, -- write zeroes using bdrv_co_write_zeroes\n"
+"\n");
+}
+
+static int write_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t write_cmd = {
+ .name = "write",
+ .altname = "w",
+ .cfunc = write_f,
+ .argmin = 2,
+ .argmax = -1,
+ .args = "[-bcCpqz] [-P pattern ] off len",
+ .oneline = "writes a number of bytes at a specified offset",
+ .help = write_help,
+};
+
+static int write_f(BlockDriverState *bs, int argc, char **argv)
+{
+ struct timeval t1, t2;
+ int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0;
+ int cflag = 0;
+ int c, cnt;
+ char *buf = NULL;
+ int64_t offset;
+ int count;
+ /* Some compilers get confused and warn if this is not initialized. */
+ int total = 0;
+ int pattern = 0xcd;
+
+ while ((c = getopt(argc, argv, "bcCpP:qz")) != EOF) {
+ switch (c) {
+ case 'b':
+ bflag = 1;
+ break;
+ case 'c':
+ cflag = 1;
+ break;
+ case 'C':
+ Cflag = 1;
+ break;
+ case 'p':
+ pflag = 1;
+ break;
+ case 'P':
+ Pflag = 1;
+ pattern = parse_pattern(optarg);
+ if (pattern < 0) {
+ return 0;
+ }
+ break;
+ case 'q':
+ qflag = 1;
+ break;
+ case 'z':
+ zflag = 1;
+ break;
+ default:
+ return qemuio_command_usage(&write_cmd);
+ }
+ }
+
+ if (optind != argc - 2) {
+ return qemuio_command_usage(&write_cmd);
+ }
+
+ if (bflag + pflag + zflag > 1) {
+ printf("-b, -p, or -z cannot be specified at the same time\n");
+ return 0;
+ }
+
+ if (zflag && Pflag) {
+ printf("-z and -P cannot be specified at the same time\n");
+ return 0;
+ }
+
+ offset = cvtnum(argv[optind]);
+ if (offset < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ return 0;
+ }
+
+ optind++;
+ count = cvtnum(argv[optind]);
+ if (count < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ return 0;
+ }
+
+ if (!pflag) {
+ if (offset & 0x1ff) {
+ printf("offset %" PRId64 " is not sector aligned\n",
+ offset);
+ return 0;
+ }
+
+ if (count & 0x1ff) {
+ printf("count %d is not sector aligned\n",
+ count);
+ return 0;
+ }
+ }
+
+ if (!zflag) {
+ buf = qemu_io_alloc(bs, count, pattern);
+ }
+
+ gettimeofday(&t1, NULL);
+ if (pflag) {
+ cnt = do_pwrite(bs, buf, offset, count, &total);
+ } else if (bflag) {
+ cnt = do_save_vmstate(bs, buf, offset, count, &total);
+ } else if (zflag) {
+ cnt = do_co_write_zeroes(bs, offset, count, &total);
+ } else if (cflag) {
+ cnt = do_write_compressed(bs, buf, offset, count, &total);
+ } else {
+ cnt = do_write(bs, buf, offset, count, &total);
+ }
+ gettimeofday(&t2, NULL);
+
+ if (cnt < 0) {
+ printf("write failed: %s\n", strerror(-cnt));
+ goto out;
+ }
+
+ if (qflag) {
+ goto out;
+ }
+
+ /* Finally, report back -- -C gives a parsable format */
+ t2 = tsub(t2, t1);
+ print_report("wrote", &t2, offset, count, total, cnt, Cflag);
+
+out:
+ if (!zflag) {
+ qemu_io_free(buf);
+ }
+
+ return 0;
+}
+
+static void
+writev_help(void)
+{
+ printf(
+"\n"
+" writes a range of bytes from the given offset source from multiple buffers\n"
+"\n"
+" Example:\n"
+" 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
+"\n"
+" Writes into a segment of the currently open file, using a buffer\n"
+" filled with a set pattern (0xcdcdcdcd).\n"
+" -P, -- use different pattern to fill file\n"
+" -C, -- report statistics in a machine parsable format\n"
+" -q, -- quiet mode, do not show I/O statistics\n"
+"\n");
+}
+
+static int writev_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t writev_cmd = {
+ .name = "writev",
+ .cfunc = writev_f,
+ .argmin = 2,
+ .argmax = -1,
+ .args = "[-Cq] [-P pattern ] off len [len..]",
+ .oneline = "writes a number of bytes at a specified offset",
+ .help = writev_help,
+};
+
+static int writev_f(BlockDriverState *bs, int argc, char **argv)
+{
+ struct timeval t1, t2;
+ int Cflag = 0, qflag = 0;
+ int c, cnt;
+ char *buf;
+ int64_t offset;
+ /* Some compilers get confused and warn if this is not initialized. */
+ int total = 0;
+ int nr_iov;
+ int pattern = 0xcd;
+ QEMUIOVector qiov;
+
+ while ((c = getopt(argc, argv, "CqP:")) != EOF) {
+ switch (c) {
+ case 'C':
+ Cflag = 1;
+ break;
+ case 'q':
+ qflag = 1;
+ break;
+ case 'P':
+ pattern = parse_pattern(optarg);
+ if (pattern < 0) {
+ return 0;
+ }
+ break;
+ default:
+ return qemuio_command_usage(&writev_cmd);
+ }
+ }
+
+ if (optind > argc - 2) {
+ return qemuio_command_usage(&writev_cmd);
+ }
+
+ offset = cvtnum(argv[optind]);
+ if (offset < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ return 0;
+ }
+ optind++;
+
+ if (offset & 0x1ff) {
+ printf("offset %" PRId64 " is not sector aligned\n",
+ offset);
+ return 0;
+ }
+
+ nr_iov = argc - optind;
+ buf = create_iovec(bs, &qiov, &argv[optind], nr_iov, pattern);
+ if (buf == NULL) {
+ return 0;
+ }
+
+ gettimeofday(&t1, NULL);
+ cnt = do_aio_writev(bs, &qiov, offset, &total);
+ gettimeofday(&t2, NULL);
+
+ if (cnt < 0) {
+ printf("writev failed: %s\n", strerror(-cnt));
+ goto out;
+ }
+
+ if (qflag) {
+ goto out;
+ }
+
+ /* Finally, report back -- -C gives a parsable format */
+ t2 = tsub(t2, t1);
+ print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag);
+out:
+ qemu_iovec_destroy(&qiov);
+ qemu_io_free(buf);
+ return 0;
+}
+
+static void multiwrite_help(void)
+{
+ printf(
+"\n"
+" writes a range of bytes from the given offset source from multiple buffers,\n"
+" in a batch of requests that may be merged by qemu\n"
+"\n"
+" Example:\n"
+" 'multiwrite 512 1k 1k ; 4k 1k'\n"
+" writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n"
+"\n"
+" Writes into a segment of the currently open file, using a buffer\n"
+" filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n"
+" by one for each request contained in the multiwrite command.\n"
+" -P, -- use different pattern to fill file\n"
+" -C, -- report statistics in a machine parsable format\n"
+" -q, -- quiet mode, do not show I/O statistics\n"
+"\n");
+}
+
+static int multiwrite_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t multiwrite_cmd = {
+ .name = "multiwrite",
+ .cfunc = multiwrite_f,
+ .argmin = 2,
+ .argmax = -1,
+ .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]",
+ .oneline = "issues multiple write requests at once",
+ .help = multiwrite_help,
+};
+
+static int multiwrite_f(BlockDriverState *bs, int argc, char **argv)
+{
+ struct timeval t1, t2;
+ int Cflag = 0, qflag = 0;
+ int c, cnt;
+ char **buf;
+ int64_t offset, first_offset = 0;
+ /* Some compilers get confused and warn if this is not initialized. */
+ int total = 0;
+ int nr_iov;
+ int nr_reqs;
+ int pattern = 0xcd;
+ QEMUIOVector *qiovs;
+ int i;
+ BlockRequest *reqs;
+
+ while ((c = getopt(argc, argv, "CqP:")) != EOF) {
+ switch (c) {
+ case 'C':
+ Cflag = 1;
+ break;
+ case 'q':
+ qflag = 1;
+ break;
+ case 'P':
+ pattern = parse_pattern(optarg);
+ if (pattern < 0) {
+ return 0;
+ }
+ break;
+ default:
+ return qemuio_command_usage(&writev_cmd);
+ }
+ }
+
+ if (optind > argc - 2) {
+ return qemuio_command_usage(&writev_cmd);
+ }
+
+ nr_reqs = 1;
+ for (i = optind; i < argc; i++) {
+ if (!strcmp(argv[i], ";")) {
+ nr_reqs++;
+ }
+ }
+
+ reqs = g_malloc0(nr_reqs * sizeof(*reqs));
+ buf = g_malloc0(nr_reqs * sizeof(*buf));
+ qiovs = g_malloc(nr_reqs * sizeof(*qiovs));
+
+ for (i = 0; i < nr_reqs && optind < argc; i++) {
+ int j;
+
+ /* Read the offset of the request */
+ offset = cvtnum(argv[optind]);
+ if (offset < 0) {
+ printf("non-numeric offset argument -- %s\n", argv[optind]);
+ goto out;
+ }
+ optind++;
+
+ if (offset & 0x1ff) {
+ printf("offset %lld is not sector aligned\n",
+ (long long)offset);
+ goto out;
+ }
+
+ if (i == 0) {
+ first_offset = offset;
+ }
+
+ /* Read lengths for qiov entries */
+ for (j = optind; j < argc; j++) {
+ if (!strcmp(argv[j], ";")) {
+ break;
+ }
+ }
+
+ nr_iov = j - optind;
+
+ /* Build request */
+ buf[i] = create_iovec(bs, &qiovs[i], &argv[optind], nr_iov, pattern);
+ if (buf[i] == NULL) {
+ goto out;
+ }
+
+ reqs[i].qiov = &qiovs[i];
+ reqs[i].sector = offset >> 9;
+ reqs[i].nb_sectors = reqs[i].qiov->size >> 9;
+
+ optind = j + 1;
+
+ pattern++;
+ }
+
+ /* If there were empty requests at the end, ignore them */
+ nr_reqs = i;
+
+ gettimeofday(&t1, NULL);
+ cnt = do_aio_multiwrite(bs, reqs, nr_reqs, &total);
+ gettimeofday(&t2, NULL);
+
+ if (cnt < 0) {
+ printf("aio_multiwrite failed: %s\n", strerror(-cnt));
+ goto out;
+ }
+
+ if (qflag) {
+ goto out;
+ }
+
+ /* Finally, report back -- -C gives a parsable format */
+ t2 = tsub(t2, t1);
+ print_report("wrote", &t2, first_offset, total, total, cnt, Cflag);
+out:
+ for (i = 0; i < nr_reqs; i++) {
+ qemu_io_free(buf[i]);
+ if (reqs[i].qiov != NULL) {
+ qemu_iovec_destroy(&qiovs[i]);
+ }
+ }
+ g_free(buf);
+ g_free(reqs);
+ g_free(qiovs);
+ return 0;
+}
+
+struct aio_ctx {
+ QEMUIOVector qiov;
+ int64_t offset;
+ char *buf;
+ int qflag;
+ int vflag;
+ int Cflag;
+ int Pflag;
+ int pattern;
+ struct timeval t1;
+};
+
+static void aio_write_done(void *opaque, int ret)
+{
+ struct aio_ctx *ctx = opaque;
+ struct timeval t2;
+
+ gettimeofday(&t2, NULL);
+
+
+ if (ret < 0) {
+ printf("aio_write failed: %s\n", strerror(-ret));
+ goto out;
+ }
+
+ if (ctx->qflag) {
+ goto out;
+ }
+
+ /* Finally, report back -- -C gives a parsable format */
+ t2 = tsub(t2, ctx->t1);
+ print_report("wrote", &t2, ctx->offset, ctx->qiov.size,
+ ctx->qiov.size, 1, ctx->Cflag);
+out:
+ qemu_io_free(ctx->buf);
+ qemu_iovec_destroy(&ctx->qiov);
+ g_free(ctx);
+}
+
+static void aio_read_done(void *opaque, int ret)
+{
+ struct aio_ctx *ctx = opaque;
+ struct timeval t2;
+
+ gettimeofday(&t2, NULL);
+
+ if (ret < 0) {
+ printf("readv failed: %s\n", strerror(-ret));
+ goto out;
+ }
+
+ if (ctx->Pflag) {
+ void *cmp_buf = g_malloc(ctx->qiov.size);
+
+ memset(cmp_buf, ctx->pattern, ctx->qiov.size);
+ if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) {
+ printf("Pattern verification failed at offset %"
+ PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size);
+ }
+ g_free(cmp_buf);
+ }
+
+ if (ctx->qflag) {
+ goto out;
+ }
+
+ if (ctx->vflag) {
+ dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size);
+ }
+
+ /* Finally, report back -- -C gives a parsable format */
+ t2 = tsub(t2, ctx->t1);
+ print_report("read", &t2, ctx->offset, ctx->qiov.size,
+ ctx->qiov.size, 1, ctx->Cflag);
+out:
+ qemu_io_free(ctx->buf);
+ qemu_iovec_destroy(&ctx->qiov);
+ g_free(ctx);
+}
+
+static void aio_read_help(void)
+{
+ printf(
+"\n"
+" asynchronously reads a range of bytes from the given offset\n"
+"\n"
+" Example:\n"
+" 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
+"\n"
+" Reads a segment of the currently open file, optionally dumping it to the\n"
+" standard output stream (with -v option) for subsequent inspection.\n"
+" The read is performed asynchronously and the aio_flush command must be\n"
+" used to ensure all outstanding aio requests have been completed.\n"
+" -C, -- report statistics in a machine parsable format\n"
+" -P, -- use a pattern to verify read data\n"
+" -v, -- dump buffer to standard output\n"
+" -q, -- quiet mode, do not show I/O statistics\n"
+"\n");
+}
+
+static int aio_read_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t aio_read_cmd = {
+ .name = "aio_read",
+ .cfunc = aio_read_f,
+ .argmin = 2,
+ .argmax = -1,
+ .args = "[-Cqv] [-P pattern ] off len [len..]",
+ .oneline = "asynchronously reads a number of bytes",
+ .help = aio_read_help,
+};
+
+static int aio_read_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int nr_iov, c;
+ struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
+
+ while ((c = getopt(argc, argv, "CP:qv")) != EOF) {
+ switch (c) {
+ case 'C':
+ ctx->Cflag = 1;
+ break;
+ case 'P':
+ ctx->Pflag = 1;
+ ctx->pattern = parse_pattern(optarg);
+ if (ctx->pattern < 0) {
+ g_free(ctx);
+ return 0;
+ }
+ break;
+ case 'q':
+ ctx->qflag = 1;
+ break;
+ case 'v':
+ ctx->vflag = 1;
+ break;
+ default:
+ g_free(ctx);
+ return qemuio_command_usage(&aio_read_cmd);
+ }
+ }
+
+ if (optind > argc - 2) {
+ g_free(ctx);
+ return qemuio_command_usage(&aio_read_cmd);
+ }
+
+ ctx->offset = cvtnum(argv[optind]);
+ if (ctx->offset < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ g_free(ctx);
+ return 0;
+ }
+ optind++;
+
+ if (ctx->offset & 0x1ff) {
+ printf("offset %" PRId64 " is not sector aligned\n",
+ ctx->offset);
+ g_free(ctx);
+ return 0;
+ }
+
+ nr_iov = argc - optind;
+ ctx->buf = create_iovec(bs, &ctx->qiov, &argv[optind], nr_iov, 0xab);
+ if (ctx->buf == NULL) {
+ g_free(ctx);
+ return 0;
+ }
+
+ gettimeofday(&ctx->t1, NULL);
+ bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov,
+ ctx->qiov.size >> 9, aio_read_done, ctx);
+ return 0;
+}
+
+static void aio_write_help(void)
+{
+ printf(
+"\n"
+" asynchronously writes a range of bytes from the given offset source\n"
+" from multiple buffers\n"
+"\n"
+" Example:\n"
+" 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
+"\n"
+" Writes into a segment of the currently open file, using a buffer\n"
+" filled with a set pattern (0xcdcdcdcd).\n"
+" The write is performed asynchronously and the aio_flush command must be\n"
+" used to ensure all outstanding aio requests have been completed.\n"
+" -P, -- use different pattern to fill file\n"
+" -C, -- report statistics in a machine parsable format\n"
+" -q, -- quiet mode, do not show I/O statistics\n"
+"\n");
+}
+
+static int aio_write_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t aio_write_cmd = {
+ .name = "aio_write",
+ .cfunc = aio_write_f,
+ .argmin = 2,
+ .argmax = -1,
+ .args = "[-Cq] [-P pattern ] off len [len..]",
+ .oneline = "asynchronously writes a number of bytes",
+ .help = aio_write_help,
+};
+
+static int aio_write_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int nr_iov, c;
+ int pattern = 0xcd;
+ struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
+
+ while ((c = getopt(argc, argv, "CqP:")) != EOF) {
+ switch (c) {
+ case 'C':
+ ctx->Cflag = 1;
+ break;
+ case 'q':
+ ctx->qflag = 1;
+ break;
+ case 'P':
+ pattern = parse_pattern(optarg);
+ if (pattern < 0) {
+ g_free(ctx);
+ return 0;
+ }
+ break;
+ default:
+ g_free(ctx);
+ return qemuio_command_usage(&aio_write_cmd);
+ }
+ }
+
+ if (optind > argc - 2) {
+ g_free(ctx);
+ return qemuio_command_usage(&aio_write_cmd);
+ }
+
+ ctx->offset = cvtnum(argv[optind]);
+ if (ctx->offset < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ g_free(ctx);
+ return 0;
+ }
+ optind++;
+
+ if (ctx->offset & 0x1ff) {
+ printf("offset %" PRId64 " is not sector aligned\n",
+ ctx->offset);
+ g_free(ctx);
+ return 0;
+ }
+
+ nr_iov = argc - optind;
+ ctx->buf = create_iovec(bs, &ctx->qiov, &argv[optind], nr_iov, pattern);
+ if (ctx->buf == NULL) {
+ g_free(ctx);
+ return 0;
+ }
+
+ gettimeofday(&ctx->t1, NULL);
+ bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov,
+ ctx->qiov.size >> 9, aio_write_done, ctx);
+ return 0;
+}
+
+static int aio_flush_f(BlockDriverState *bs, int argc, char **argv)
+{
+ bdrv_drain_all();
+ return 0;
+}
+
+static const cmdinfo_t aio_flush_cmd = {
+ .name = "aio_flush",
+ .cfunc = aio_flush_f,
+ .oneline = "completes all outstanding aio requests"
+};
+
+static int flush_f(BlockDriverState *bs, int argc, char **argv)
+{
+ bdrv_flush(bs);
+ return 0;
+}
+
+static const cmdinfo_t flush_cmd = {
+ .name = "flush",
+ .altname = "f",
+ .cfunc = flush_f,
+ .oneline = "flush all in-core file state to disk",
+};
+
+static int truncate_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int64_t offset;
+ int ret;
+
+ offset = cvtnum(argv[1]);
+ if (offset < 0) {
+ printf("non-numeric truncate argument -- %s\n", argv[1]);
+ return 0;
+ }
+
+ ret = bdrv_truncate(bs, offset);
+ if (ret < 0) {
+ printf("truncate: %s\n", strerror(-ret));
+ return 0;
+ }
+
+ return 0;
+}
+
+static const cmdinfo_t truncate_cmd = {
+ .name = "truncate",
+ .altname = "t",
+ .cfunc = truncate_f,
+ .argmin = 1,
+ .argmax = 1,
+ .args = "off",
+ .oneline = "truncates the current file at the given offset",
+};
+
+static int length_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int64_t size;
+ char s1[64];
+
+ size = bdrv_getlength(bs);
+ if (size < 0) {
+ printf("getlength: %s\n", strerror(-size));
+ return 0;
+ }
+
+ cvtstr(size, s1, sizeof(s1));
+ printf("%s\n", s1);
+ return 0;
+}
+
+
+static const cmdinfo_t length_cmd = {
+ .name = "length",
+ .altname = "l",
+ .cfunc = length_f,
+ .oneline = "gets the length of the current file",
+};
+
+
+static int info_f(BlockDriverState *bs, int argc, char **argv)
+{
+ BlockDriverInfo bdi;
+ char s1[64], s2[64];
+ int ret;
+
+ if (bs->drv && bs->drv->format_name) {
+ printf("format name: %s\n", bs->drv->format_name);
+ }
+ if (bs->drv && bs->drv->protocol_name) {
+ printf("format name: %s\n", bs->drv->protocol_name);
+ }
+
+ ret = bdrv_get_info(bs, &bdi);
+ if (ret) {
+ return 0;
+ }
+
+ cvtstr(bdi.cluster_size, s1, sizeof(s1));
+ cvtstr(bdi.vm_state_offset, s2, sizeof(s2));
+
+ printf("cluster size: %s\n", s1);
+ printf("vm state offset: %s\n", s2);
+
+ return 0;
+}
+
+
+
+static const cmdinfo_t info_cmd = {
+ .name = "info",
+ .altname = "i",
+ .cfunc = info_f,
+ .oneline = "prints information about the current file",
+};
+
+static void discard_help(void)
+{
+ printf(
+"\n"
+" discards a range of bytes from the given offset\n"
+"\n"
+" Example:\n"
+" 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n"
+"\n"
+" Discards a segment of the currently open file.\n"
+" -C, -- report statistics in a machine parsable format\n"
+" -q, -- quiet mode, do not show I/O statistics\n"
+"\n");
+}
+
+static int discard_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t discard_cmd = {
+ .name = "discard",
+ .altname = "d",
+ .cfunc = discard_f,
+ .argmin = 2,
+ .argmax = -1,
+ .args = "[-Cq] off len",
+ .oneline = "discards a number of bytes at a specified offset",
+ .help = discard_help,
+};
+
+static int discard_f(BlockDriverState *bs, int argc, char **argv)
+{
+ struct timeval t1, t2;
+ int Cflag = 0, qflag = 0;
+ int c, ret;
+ int64_t offset;
+ int count;
+
+ while ((c = getopt(argc, argv, "Cq")) != EOF) {
+ switch (c) {
+ case 'C':
+ Cflag = 1;
+ break;
+ case 'q':
+ qflag = 1;
+ break;
+ default:
+ return qemuio_command_usage(&discard_cmd);
+ }
+ }
+
+ if (optind != argc - 2) {
+ return qemuio_command_usage(&discard_cmd);
+ }
+
+ offset = cvtnum(argv[optind]);
+ if (offset < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ return 0;
+ }
+
+ optind++;
+ count = cvtnum(argv[optind]);
+ if (count < 0) {
+ printf("non-numeric length argument -- %s\n", argv[optind]);
+ return 0;
+ }
+
+ gettimeofday(&t1, NULL);
+ ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS,
+ count >> BDRV_SECTOR_BITS);
+ gettimeofday(&t2, NULL);
+
+ if (ret < 0) {
+ printf("discard failed: %s\n", strerror(-ret));
+ goto out;
+ }
+
+ /* Finally, report back -- -C gives a parsable format */
+ if (!qflag) {
+ t2 = tsub(t2, t1);
+ print_report("discard", &t2, offset, count, count, 1, Cflag);
+ }
+
+out:
+ return 0;
+}
+
+static int alloc_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int64_t offset, sector_num;
+ int nb_sectors, remaining;
+ char s1[64];
+ int num, sum_alloc;
+ int ret;
+
+ offset = cvtnum(argv[1]);
+ if (offset < 0) {
+ printf("non-numeric offset argument -- %s\n", argv[1]);
+ return 0;
+ } else if (offset & 0x1ff) {
+ printf("offset %" PRId64 " is not sector aligned\n",
+ offset);
+ return 0;
+ }
+
+ if (argc == 3) {
+ nb_sectors = cvtnum(argv[2]);
+ if (nb_sectors < 0) {
+ printf("non-numeric length argument -- %s\n", argv[2]);
+ return 0;
+ }
+ } else {
+ nb_sectors = 1;
+ }
+
+ remaining = nb_sectors;
+ sum_alloc = 0;
+ sector_num = offset >> 9;
+ while (remaining) {
+ ret = bdrv_is_allocated(bs, sector_num, remaining, &num);
+ sector_num += num;
+ remaining -= num;
+ if (ret) {
+ sum_alloc += num;
+ }
+ if (num == 0) {
+ nb_sectors -= remaining;
+ remaining = 0;
+ }
+ }
+
+ cvtstr(offset, s1, sizeof(s1));
+
+ printf("%d/%d sectors allocated at offset %s\n",
+ sum_alloc, nb_sectors, s1);
+ return 0;
+}
+
+static const cmdinfo_t alloc_cmd = {
+ .name = "alloc",
+ .altname = "a",
+ .argmin = 1,
+ .argmax = 2,
+ .cfunc = alloc_f,
+ .args = "off [sectors]",
+ .oneline = "checks if a sector is present in the file",
+};
+
+
+static int map_is_allocated(BlockDriverState *bs, int64_t sector_num,
+ int64_t nb_sectors, int64_t *pnum)
+{
+ int num, num_checked;
+ int ret, firstret;
+
+ num_checked = MIN(nb_sectors, INT_MAX);
+ ret = bdrv_is_allocated(bs, sector_num, num_checked, &num);
+ if (ret < 0) {
+ return ret;
+ }
+
+ firstret = ret;
+ *pnum = num;
+
+ while (nb_sectors > 0 && ret == firstret) {
+ sector_num += num;
+ nb_sectors -= num;
+
+ num_checked = MIN(nb_sectors, INT_MAX);
+ ret = bdrv_is_allocated(bs, sector_num, num_checked, &num);
+ if (ret == firstret) {
+ *pnum += num;
+ } else {
+ break;
+ }
+ }
+
+ return firstret;
+}
+
+static int map_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int64_t offset;
+ int64_t nb_sectors;
+ char s1[64];
+ int64_t num;
+ int ret;
+ const char *retstr;
+
+ offset = 0;
+ nb_sectors = bs->total_sectors;
+
+ do {
+ ret = map_is_allocated(bs, offset, nb_sectors, &num);
+ if (ret < 0) {
+ error_report("Failed to get allocation status: %s", strerror(-ret));
+ return 0;
+ }
+
+ retstr = ret ? " allocated" : "not allocated";
+ cvtstr(offset << 9ULL, s1, sizeof(s1));
+ printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s "
+ "at offset %s (%d)\n",
+ offset << 9ULL, num, nb_sectors, retstr, s1, ret);
+
+ offset += num;
+ nb_sectors -= num;
+ } while (offset < bs->total_sectors);
+
+ return 0;
+}
+
+static const cmdinfo_t map_cmd = {
+ .name = "map",
+ .argmin = 0,
+ .argmax = 0,
+ .cfunc = map_f,
+ .args = "",
+ .oneline = "prints the allocated areas of a file",
+};
+
+static int break_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int ret;
+
+ ret = bdrv_debug_breakpoint(bs, argv[1], argv[2]);
+ if (ret < 0) {
+ printf("Could not set breakpoint: %s\n", strerror(-ret));
+ }
+
+ return 0;
+}
+
+static const cmdinfo_t break_cmd = {
+ .name = "break",
+ .argmin = 2,
+ .argmax = 2,
+ .cfunc = break_f,
+ .args = "event tag",
+ .oneline = "sets a breakpoint on event and tags the stopped "
+ "request as tag",
+};
+
+static int resume_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int ret;
+
+ ret = bdrv_debug_resume(bs, argv[1]);
+ if (ret < 0) {
+ printf("Could not resume request: %s\n", strerror(-ret));
+ }
+
+ return 0;
+}
+
+static const cmdinfo_t resume_cmd = {
+ .name = "resume",
+ .argmin = 1,
+ .argmax = 1,
+ .cfunc = resume_f,
+ .args = "tag",
+ .oneline = "resumes the request tagged as tag",
+};
+
+static int wait_break_f(BlockDriverState *bs, int argc, char **argv)
+{
+ while (!bdrv_debug_is_suspended(bs, argv[1])) {
+ qemu_aio_wait();
+ }
+
+ return 0;
+}
+
+static const cmdinfo_t wait_break_cmd = {
+ .name = "wait_break",
+ .argmin = 1,
+ .argmax = 1,
+ .cfunc = wait_break_f,
+ .args = "tag",
+ .oneline = "waits for the suspension of a request",
+};
+
+static int abort_f(BlockDriverState *bs, int argc, char **argv)
+{
+ abort();
+}
+
+static const cmdinfo_t abort_cmd = {
+ .name = "abort",
+ .cfunc = abort_f,
+ .flags = CMD_NOFILE_OK,
+ .oneline = "simulate a program crash using abort(3)",
+};
+
+static void help_oneline(const char *cmd, const cmdinfo_t *ct)
+{
+ if (cmd) {
+ printf("%s ", cmd);
+ } else {
+ printf("%s ", ct->name);
+ if (ct->altname) {
+ printf("(or %s) ", ct->altname);
+ }
+ }
+
+ if (ct->args) {
+ printf("%s ", ct->args);
+ }
+ printf("-- %s\n", ct->oneline);
+}
+
+static void help_onecmd(const char *cmd, const cmdinfo_t *ct)
+{
+ help_oneline(cmd, ct);
+ if (ct->help) {
+ ct->help();
+ }
+}
+
+static void help_all(void)
+{
+ const cmdinfo_t *ct;
+
+ for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) {
+ help_oneline(ct->name, ct);
+ }
+ printf("\nUse 'help commandname' for extended help.\n");
+}
+
+static int help_f(BlockDriverState *bs, int argc, char **argv)
+{
+ const cmdinfo_t *ct;
+
+ if (argc == 1) {
+ help_all();
+ return 0;
+ }
+
+ ct = find_command(argv[1]);
+ if (ct == NULL) {
+ printf("command %s not found\n", argv[1]);
+ return 0;
+ }
+
+ help_onecmd(argv[1], ct);
+ return 0;
+}
+
+static const cmdinfo_t help_cmd = {
+ .name = "help",
+ .altname = "?",
+ .cfunc = help_f,
+ .argmin = 0,
+ .argmax = 1,
+ .flags = CMD_FLAG_GLOBAL,
+ .args = "[command]",
+ .oneline = "help for one or all commands",
+};
+
+bool qemuio_command(BlockDriverState *bs, const char *cmd)
+{
+ char *input;
+ const cmdinfo_t *ct;
+ char **v;
+ int c;
+ bool done = false;
+
+ input = g_strdup(cmd);
+ v = breakline(input, &c);
+ if (c) {
+ ct = find_command(v[0]);
+ if (ct) {
+ done = command(bs, ct, c, v);
+ } else {
+ fprintf(stderr, "command \"%s\" not found\n", v[0]);
+ }
+ }
+ g_free(input);
+ g_free(v);
+
+ return done;
+}
+
+static void __attribute((constructor)) init_qemuio_commands(void)
+{
+ /* initialize commands */
+ qemuio_add_command(&help_cmd);
+ qemuio_add_command(&read_cmd);
+ qemuio_add_command(&readv_cmd);
+ qemuio_add_command(&write_cmd);
+ qemuio_add_command(&writev_cmd);
+ qemuio_add_command(&multiwrite_cmd);
+ qemuio_add_command(&aio_read_cmd);
+ qemuio_add_command(&aio_write_cmd);
+ qemuio_add_command(&aio_flush_cmd);
+ qemuio_add_command(&flush_cmd);
+ qemuio_add_command(&truncate_cmd);
+ qemuio_add_command(&length_cmd);
+ qemuio_add_command(&info_cmd);
+ qemuio_add_command(&discard_cmd);
+ qemuio_add_command(&alloc_cmd);
+ qemuio_add_command(&map_cmd);
+ qemuio_add_command(&break_cmd);
+ qemuio_add_command(&resume_cmd);
+ qemuio_add_command(&wait_break_cmd);
+ qemuio_add_command(&abort_cmd);
+}
diff --git a/qemu-io.c b/qemu-io.c
index 5e6680b247..cb9def50e6 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -14,1776 +14,26 @@
#include <getopt.h>
#include <libgen.h>
-#include "qemu-common.h"
+#include "qemu-io.h"
#include "qemu/main-loop.h"
#include "block/block_int.h"
-#include "cmd.h"
#include "trace/control.h"
-#define VERSION "0.0.1"
-
#define CMD_NOFILE_OK 0x01
char *progname;
-static BlockDriverState *bs;
-
-static int misalign;
-
-/*
- * Parse the pattern argument to various sub-commands.
- *
- * Because the pattern is used as an argument to memset it must evaluate
- * to an unsigned integer that fits into a single byte.
- */
-static int parse_pattern(const char *arg)
-{
- char *endptr = NULL;
- long pattern;
-
- pattern = strtol(arg, &endptr, 0);
- if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') {
- printf("%s is not a valid pattern byte\n", arg);
- return -1;
- }
-
- return pattern;
-}
-
-/*
- * Memory allocation helpers.
- *
- * Make sure memory is aligned by default, or purposefully misaligned if
- * that is specified on the command line.
- */
-
-#define MISALIGN_OFFSET 16
-static void *qemu_io_alloc(size_t len, int pattern)
-{
- void *buf;
-
- if (misalign) {
- len += MISALIGN_OFFSET;
- }
- buf = qemu_blockalign(bs, len);
- memset(buf, pattern, len);
- if (misalign) {
- buf += MISALIGN_OFFSET;
- }
- return buf;
-}
-
-static void qemu_io_free(void *p)
-{
- if (misalign) {
- p -= MISALIGN_OFFSET;
- }
- qemu_vfree(p);
-}
-
-static void dump_buffer(const void *buffer, int64_t offset, int len)
-{
- int i, j;
- const uint8_t *p;
-
- for (i = 0, p = buffer; i < len; i += 16) {
- const uint8_t *s = p;
-
- printf("%08" PRIx64 ": ", offset + i);
- for (j = 0; j < 16 && i + j < len; j++, p++) {
- printf("%02x ", *p);
- }
- printf(" ");
- for (j = 0; j < 16 && i + j < len; j++, s++) {
- if (isalnum(*s)) {
- printf("%c", *s);
- } else {
- printf(".");
- }
- }
- printf("\n");
- }
-}
-
-static void print_report(const char *op, struct timeval *t, int64_t offset,
- int count, int total, int cnt, int Cflag)
-{
- char s1[64], s2[64], ts[64];
-
- timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0);
- if (!Cflag) {
- cvtstr((double)total, s1, sizeof(s1));
- cvtstr(tdiv((double)total, *t), s2, sizeof(s2));
- printf("%s %d/%d bytes at offset %" PRId64 "\n",
- op, total, count, offset);
- printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n",
- s1, cnt, ts, s2, tdiv((double)cnt, *t));
- } else {/* bytes,ops,time,bytes/sec,ops/sec */
- printf("%d,%d,%s,%.3f,%.3f\n",
- total, cnt, ts,
- tdiv((double)total, *t),
- tdiv((double)cnt, *t));
- }
-}
-
-/*
- * Parse multiple length statements for vectored I/O, and construct an I/O
- * vector matching it.
- */
-static void *
-create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern)
-{
- size_t *sizes = g_new0(size_t, nr_iov);
- size_t count = 0;
- void *buf = NULL;
- void *p;
- int i;
-
- for (i = 0; i < nr_iov; i++) {
- char *arg = argv[i];
- int64_t len;
-
- len = cvtnum(arg);
- if (len < 0) {
- printf("non-numeric length argument -- %s\n", arg);
- goto fail;
- }
-
- /* should be SIZE_T_MAX, but that doesn't exist */
- if (len > INT_MAX) {
- printf("too large length argument -- %s\n", arg);
- goto fail;
- }
-
- if (len & 0x1ff) {
- printf("length argument %" PRId64
- " is not sector aligned\n", len);
- goto fail;
- }
-
- sizes[i] = len;
- count += len;
- }
-
- qemu_iovec_init(qiov, nr_iov);
-
- buf = p = qemu_io_alloc(count, pattern);
-
- for (i = 0; i < nr_iov; i++) {
- qemu_iovec_add(qiov, p, sizes[i]);
- p += sizes[i];
- }
-
-fail:
- g_free(sizes);
- return buf;
-}
-
-static int do_read(char *buf, int64_t offset, int count, int *total)
-{
- int ret;
-
- ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9);
- if (ret < 0) {
- return ret;
- }
- *total = count;
- return 1;
-}
-
-static int do_write(char *buf, int64_t offset, int count, int *total)
-{
- int ret;
-
- ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9);
- if (ret < 0) {
- return ret;
- }
- *total = count;
- return 1;
-}
-
-static int do_pread(char *buf, int64_t offset, int count, int *total)
-{
- *total = bdrv_pread(bs, offset, (uint8_t *)buf, count);
- if (*total < 0) {
- return *total;
- }
- return 1;
-}
-
-static int do_pwrite(char *buf, int64_t offset, int count, int *total)
-{
- *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count);
- if (*total < 0) {
- return *total;
- }
- return 1;
-}
-
-typedef struct {
- int64_t offset;
- int count;
- int *total;
- int ret;
- bool done;
-} CoWriteZeroes;
-
-static void coroutine_fn co_write_zeroes_entry(void *opaque)
-{
- CoWriteZeroes *data = opaque;
-
- data->ret = bdrv_co_write_zeroes(bs, data->offset / BDRV_SECTOR_SIZE,
- data->count / BDRV_SECTOR_SIZE);
- data->done = true;
- if (data->ret < 0) {
- *data->total = data->ret;
- return;
- }
-
- *data->total = data->count;
-}
-
-static int do_co_write_zeroes(int64_t offset, int count, int *total)
-{
- Coroutine *co;
- CoWriteZeroes data = {
- .offset = offset,
- .count = count,
- .total = total,
- .done = false,
- };
-
- co = qemu_coroutine_create(co_write_zeroes_entry);
- qemu_coroutine_enter(co, &data);
- while (!data.done) {
- qemu_aio_wait();
- }
- if (data.ret < 0) {
- return data.ret;
- } else {
- return 1;
- }
-}
-
-static int do_write_compressed(char *buf, int64_t offset, int count, int *total)
-{
- int ret;
-
- ret = bdrv_write_compressed(bs, offset >> 9, (uint8_t *)buf, count >> 9);
- if (ret < 0) {
- return ret;
- }
- *total = count;
- return 1;
-}
-
-static int do_load_vmstate(char *buf, int64_t offset, int count, int *total)
-{
- *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count);
- if (*total < 0) {
- return *total;
- }
- return 1;
-}
-
-static int do_save_vmstate(char *buf, int64_t offset, int count, int *total)
-{
- *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count);
- if (*total < 0) {
- return *total;
- }
- return 1;
-}
-
-#define NOT_DONE 0x7fffffff
-static void aio_rw_done(void *opaque, int ret)
-{
- *(int *)opaque = ret;
-}
-
-static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total)
-{
- int async_ret = NOT_DONE;
-
- bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9,
- aio_rw_done, &async_ret);
- while (async_ret == NOT_DONE) {
- main_loop_wait(false);
- }
-
- *total = qiov->size;
- return async_ret < 0 ? async_ret : 1;
-}
-
-static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total)
-{
- int async_ret = NOT_DONE;
-
- bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9,
- aio_rw_done, &async_ret);
- while (async_ret == NOT_DONE) {
- main_loop_wait(false);
- }
-
- *total = qiov->size;
- return async_ret < 0 ? async_ret : 1;
-}
-
-struct multiwrite_async_ret {
- int num_done;
- int error;
-};
-
-static void multiwrite_cb(void *opaque, int ret)
-{
- struct multiwrite_async_ret *async_ret = opaque;
-
- async_ret->num_done++;
- if (ret < 0) {
- async_ret->error = ret;
- }
-}
-
-static int do_aio_multiwrite(BlockRequest* reqs, int num_reqs, int *total)
-{
- int i, ret;
- struct multiwrite_async_ret async_ret = {
- .num_done = 0,
- .error = 0,
- };
- *total = 0;
- for (i = 0; i < num_reqs; i++) {
- reqs[i].cb = multiwrite_cb;
- reqs[i].opaque = &async_ret;
- *total += reqs[i].qiov->size;
- }
-
- ret = bdrv_aio_multiwrite(bs, reqs, num_reqs);
- if (ret < 0) {
- return ret;
- }
-
- while (async_ret.num_done < num_reqs) {
- main_loop_wait(false);
- }
-
- return async_ret.error < 0 ? async_ret.error : 1;
-}
-
-static void read_help(void)
-{
- printf(
-"\n"
-" reads a range of bytes from the given offset\n"
-"\n"
-" Example:\n"
-" 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n"
-"\n"
-" Reads a segment of the currently open file, optionally dumping it to the\n"
-" standard output stream (with -v option) for subsequent inspection.\n"
-" -b, -- read from the VM state rather than the virtual disk\n"
-" -C, -- report statistics in a machine parsable format\n"
-" -l, -- length for pattern verification (only with -P)\n"
-" -p, -- use bdrv_pread to read the file\n"
-" -P, -- use a pattern to verify read data\n"
-" -q, -- quiet mode, do not show I/O statistics\n"
-" -s, -- start offset for pattern verification (only with -P)\n"
-" -v, -- dump buffer to standard output\n"
-"\n");
-}
-
-static int read_f(int argc, char **argv);
+BlockDriverState *qemuio_bs;
+extern int qemuio_misalign;
-static const cmdinfo_t read_cmd = {
- .name = "read",
- .altname = "r",
- .cfunc = read_f,
- .argmin = 2,
- .argmax = -1,
- .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len",
- .oneline = "reads a number of bytes at a specified offset",
- .help = read_help,
-};
+/* qemu-io commands passed using -c */
+static int ncmdline;
+static char **cmdline;
-static int read_f(int argc, char **argv)
-{
- struct timeval t1, t2;
- int Cflag = 0, pflag = 0, qflag = 0, vflag = 0;
- int Pflag = 0, sflag = 0, lflag = 0, bflag = 0;
- int c, cnt;
- char *buf;
- int64_t offset;
- int count;
- /* Some compilers get confused and warn if this is not initialized. */
- int total = 0;
- int pattern = 0, pattern_offset = 0, pattern_count = 0;
-
- while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) {
- switch (c) {
- case 'b':
- bflag = 1;
- break;
- case 'C':
- Cflag = 1;
- break;
- case 'l':
- lflag = 1;
- pattern_count = cvtnum(optarg);
- if (pattern_count < 0) {
- printf("non-numeric length argument -- %s\n", optarg);
- return 0;
- }
- break;
- case 'p':
- pflag = 1;
- break;
- case 'P':
- Pflag = 1;
- pattern = parse_pattern(optarg);
- if (pattern < 0) {
- return 0;
- }
- break;
- case 'q':
- qflag = 1;
- break;
- case 's':
- sflag = 1;
- pattern_offset = cvtnum(optarg);
- if (pattern_offset < 0) {
- printf("non-numeric length argument -- %s\n", optarg);
- return 0;
- }
- break;
- case 'v':
- vflag = 1;
- break;
- default:
- return command_usage(&read_cmd);
- }
- }
-
- if (optind != argc - 2) {
- return command_usage(&read_cmd);
- }
-
- if (bflag && pflag) {
- printf("-b and -p cannot be specified at the same time\n");
- return 0;
- }
-
- offset = cvtnum(argv[optind]);
- if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- return 0;
- }
-
- optind++;
- count = cvtnum(argv[optind]);
- if (count < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- return 0;
- }
-
- if (!Pflag && (lflag || sflag)) {
- return command_usage(&read_cmd);
- }
-
- if (!lflag) {
- pattern_count = count - pattern_offset;
- }
-
- if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) {
- printf("pattern verification range exceeds end of read data\n");
- return 0;
- }
-
- if (!pflag) {
- if (offset & 0x1ff) {
- printf("offset %" PRId64 " is not sector aligned\n",
- offset);
- return 0;
- }
- if (count & 0x1ff) {
- printf("count %d is not sector aligned\n",
- count);
- return 0;
- }
- }
-
- buf = qemu_io_alloc(count, 0xab);
-
- gettimeofday(&t1, NULL);
- if (pflag) {
- cnt = do_pread(buf, offset, count, &total);
- } else if (bflag) {
- cnt = do_load_vmstate(buf, offset, count, &total);
- } else {
- cnt = do_read(buf, offset, count, &total);
- }
- gettimeofday(&t2, NULL);
-
- if (cnt < 0) {
- printf("read failed: %s\n", strerror(-cnt));
- goto out;
- }
-
- if (Pflag) {
- void *cmp_buf = g_malloc(pattern_count);
- memset(cmp_buf, pattern, pattern_count);
- if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) {
- printf("Pattern verification failed at offset %"
- PRId64 ", %d bytes\n",
- offset + pattern_offset, pattern_count);
- }
- g_free(cmp_buf);
- }
-
- if (qflag) {
- goto out;
- }
-
- if (vflag) {
- dump_buffer(buf, offset, count);
- }
-
- /* Finally, report back -- -C gives a parsable format */
- t2 = tsub(t2, t1);
- print_report("read", &t2, offset, count, total, cnt, Cflag);
-
-out:
- qemu_io_free(buf);
-
- return 0;
-}
-
-static void readv_help(void)
-{
- printf(
-"\n"
-" reads a range of bytes from the given offset into multiple buffers\n"
-"\n"
-" Example:\n"
-" 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
-"\n"
-" Reads a segment of the currently open file, optionally dumping it to the\n"
-" standard output stream (with -v option) for subsequent inspection.\n"
-" Uses multiple iovec buffers if more than one byte range is specified.\n"
-" -C, -- report statistics in a machine parsable format\n"
-" -P, -- use a pattern to verify read data\n"
-" -v, -- dump buffer to standard output\n"
-" -q, -- quiet mode, do not show I/O statistics\n"
-"\n");
-}
-
-static int readv_f(int argc, char **argv);
-
-static const cmdinfo_t readv_cmd = {
- .name = "readv",
- .cfunc = readv_f,
- .argmin = 2,
- .argmax = -1,
- .args = "[-Cqv] [-P pattern ] off len [len..]",
- .oneline = "reads a number of bytes at a specified offset",
- .help = readv_help,
-};
-
-static int readv_f(int argc, char **argv)
-{
- struct timeval t1, t2;
- int Cflag = 0, qflag = 0, vflag = 0;
- int c, cnt;
- char *buf;
- int64_t offset;
- /* Some compilers get confused and warn if this is not initialized. */
- int total = 0;
- int nr_iov;
- QEMUIOVector qiov;
- int pattern = 0;
- int Pflag = 0;
-
- while ((c = getopt(argc, argv, "CP:qv")) != EOF) {
- switch (c) {
- case 'C':
- Cflag = 1;
- break;
- case 'P':
- Pflag = 1;
- pattern = parse_pattern(optarg);
- if (pattern < 0) {
- return 0;
- }
- break;
- case 'q':
- qflag = 1;
- break;
- case 'v':
- vflag = 1;
- break;
- default:
- return command_usage(&readv_cmd);
- }
- }
-
- if (optind > argc - 2) {
- return command_usage(&readv_cmd);
- }
-
-
- offset = cvtnum(argv[optind]);
- if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- return 0;
- }
- optind++;
-
- if (offset & 0x1ff) {
- printf("offset %" PRId64 " is not sector aligned\n",
- offset);
- return 0;
- }
-
- nr_iov = argc - optind;
- buf = create_iovec(&qiov, &argv[optind], nr_iov, 0xab);
- if (buf == NULL) {
- return 0;
- }
-
- gettimeofday(&t1, NULL);
- cnt = do_aio_readv(&qiov, offset, &total);
- gettimeofday(&t2, NULL);
-
- if (cnt < 0) {
- printf("readv failed: %s\n", strerror(-cnt));
- goto out;
- }
-
- if (Pflag) {
- void *cmp_buf = g_malloc(qiov.size);
- memset(cmp_buf, pattern, qiov.size);
- if (memcmp(buf, cmp_buf, qiov.size)) {
- printf("Pattern verification failed at offset %"
- PRId64 ", %zd bytes\n", offset, qiov.size);
- }
- g_free(cmp_buf);
- }
-
- if (qflag) {
- goto out;
- }
-
- if (vflag) {
- dump_buffer(buf, offset, qiov.size);
- }
-
- /* Finally, report back -- -C gives a parsable format */
- t2 = tsub(t2, t1);
- print_report("read", &t2, offset, qiov.size, total, cnt, Cflag);
-
-out:
- qemu_iovec_destroy(&qiov);
- qemu_io_free(buf);
- return 0;
-}
-
-static void write_help(void)
-{
- printf(
-"\n"
-" writes a range of bytes from the given offset\n"
-"\n"
-" Example:\n"
-" 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n"
-"\n"
-" Writes into a segment of the currently open file, using a buffer\n"
-" filled with a set pattern (0xcdcdcdcd).\n"
-" -b, -- write to the VM state rather than the virtual disk\n"
-" -c, -- write compressed data with bdrv_write_compressed\n"
-" -p, -- use bdrv_pwrite to write the file\n"
-" -P, -- use different pattern to fill file\n"
-" -C, -- report statistics in a machine parsable format\n"
-" -q, -- quiet mode, do not show I/O statistics\n"
-" -z, -- write zeroes using bdrv_co_write_zeroes\n"
-"\n");
-}
-
-static int write_f(int argc, char **argv);
-
-static const cmdinfo_t write_cmd = {
- .name = "write",
- .altname = "w",
- .cfunc = write_f,
- .argmin = 2,
- .argmax = -1,
- .args = "[-bcCpqz] [-P pattern ] off len",
- .oneline = "writes a number of bytes at a specified offset",
- .help = write_help,
-};
-
-static int write_f(int argc, char **argv)
-{
- struct timeval t1, t2;
- int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0;
- int cflag = 0;
- int c, cnt;
- char *buf = NULL;
- int64_t offset;
- int count;
- /* Some compilers get confused and warn if this is not initialized. */
- int total = 0;
- int pattern = 0xcd;
-
- while ((c = getopt(argc, argv, "bcCpP:qz")) != EOF) {
- switch (c) {
- case 'b':
- bflag = 1;
- break;
- case 'c':
- cflag = 1;
- break;
- case 'C':
- Cflag = 1;
- break;
- case 'p':
- pflag = 1;
- break;
- case 'P':
- Pflag = 1;
- pattern = parse_pattern(optarg);
- if (pattern < 0) {
- return 0;
- }
- break;
- case 'q':
- qflag = 1;
- break;
- case 'z':
- zflag = 1;
- break;
- default:
- return command_usage(&write_cmd);
- }
- }
-
- if (optind != argc - 2) {
- return command_usage(&write_cmd);
- }
-
- if (bflag + pflag + zflag > 1) {
- printf("-b, -p, or -z cannot be specified at the same time\n");
- return 0;
- }
-
- if (zflag && Pflag) {
- printf("-z and -P cannot be specified at the same time\n");
- return 0;
- }
-
- offset = cvtnum(argv[optind]);
- if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- return 0;
- }
-
- optind++;
- count = cvtnum(argv[optind]);
- if (count < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- return 0;
- }
-
- if (!pflag) {
- if (offset & 0x1ff) {
- printf("offset %" PRId64 " is not sector aligned\n",
- offset);
- return 0;
- }
-
- if (count & 0x1ff) {
- printf("count %d is not sector aligned\n",
- count);
- return 0;
- }
- }
-
- if (!zflag) {
- buf = qemu_io_alloc(count, pattern);
- }
-
- gettimeofday(&t1, NULL);
- if (pflag) {
- cnt = do_pwrite(buf, offset, count, &total);
- } else if (bflag) {
- cnt = do_save_vmstate(buf, offset, count, &total);
- } else if (zflag) {
- cnt = do_co_write_zeroes(offset, count, &total);
- } else if (cflag) {
- cnt = do_write_compressed(buf, offset, count, &total);
- } else {
- cnt = do_write(buf, offset, count, &total);
- }
- gettimeofday(&t2, NULL);
-
- if (cnt < 0) {
- printf("write failed: %s\n", strerror(-cnt));
- goto out;
- }
-
- if (qflag) {
- goto out;
- }
-
- /* Finally, report back -- -C gives a parsable format */
- t2 = tsub(t2, t1);
- print_report("wrote", &t2, offset, count, total, cnt, Cflag);
-
-out:
- if (!zflag) {
- qemu_io_free(buf);
- }
-
- return 0;
-}
-
-static void
-writev_help(void)
-{
- printf(
-"\n"
-" writes a range of bytes from the given offset source from multiple buffers\n"
-"\n"
-" Example:\n"
-" 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
-"\n"
-" Writes into a segment of the currently open file, using a buffer\n"
-" filled with a set pattern (0xcdcdcdcd).\n"
-" -P, -- use different pattern to fill file\n"
-" -C, -- report statistics in a machine parsable format\n"
-" -q, -- quiet mode, do not show I/O statistics\n"
-"\n");
-}
-
-static int writev_f(int argc, char **argv);
-
-static const cmdinfo_t writev_cmd = {
- .name = "writev",
- .cfunc = writev_f,
- .argmin = 2,
- .argmax = -1,
- .args = "[-Cq] [-P pattern ] off len [len..]",
- .oneline = "writes a number of bytes at a specified offset",
- .help = writev_help,
-};
-
-static int writev_f(int argc, char **argv)
-{
- struct timeval t1, t2;
- int Cflag = 0, qflag = 0;
- int c, cnt;
- char *buf;
- int64_t offset;
- /* Some compilers get confused and warn if this is not initialized. */
- int total = 0;
- int nr_iov;
- int pattern = 0xcd;
- QEMUIOVector qiov;
-
- while ((c = getopt(argc, argv, "CqP:")) != EOF) {
- switch (c) {
- case 'C':
- Cflag = 1;
- break;
- case 'q':
- qflag = 1;
- break;
- case 'P':
- pattern = parse_pattern(optarg);
- if (pattern < 0) {
- return 0;
- }
- break;
- default:
- return command_usage(&writev_cmd);
- }
- }
-
- if (optind > argc - 2) {
- return command_usage(&writev_cmd);
- }
-
- offset = cvtnum(argv[optind]);
- if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- return 0;
- }
- optind++;
-
- if (offset & 0x1ff) {
- printf("offset %" PRId64 " is not sector aligned\n",
- offset);
- return 0;
- }
-
- nr_iov = argc - optind;
- buf = create_iovec(&qiov, &argv[optind], nr_iov, pattern);
- if (buf == NULL) {
- return 0;
- }
-
- gettimeofday(&t1, NULL);
- cnt = do_aio_writev(&qiov, offset, &total);
- gettimeofday(&t2, NULL);
-
- if (cnt < 0) {
- printf("writev failed: %s\n", strerror(-cnt));
- goto out;
- }
-
- if (qflag) {
- goto out;
- }
-
- /* Finally, report back -- -C gives a parsable format */
- t2 = tsub(t2, t1);
- print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag);
-out:
- qemu_iovec_destroy(&qiov);
- qemu_io_free(buf);
- return 0;
-}
-
-static void multiwrite_help(void)
-{
- printf(
-"\n"
-" writes a range of bytes from the given offset source from multiple buffers,\n"
-" in a batch of requests that may be merged by qemu\n"
-"\n"
-" Example:\n"
-" 'multiwrite 512 1k 1k ; 4k 1k'\n"
-" writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n"
-"\n"
-" Writes into a segment of the currently open file, using a buffer\n"
-" filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n"
-" by one for each request contained in the multiwrite command.\n"
-" -P, -- use different pattern to fill file\n"
-" -C, -- report statistics in a machine parsable format\n"
-" -q, -- quiet mode, do not show I/O statistics\n"
-"\n");
-}
-
-static int multiwrite_f(int argc, char **argv);
-
-static const cmdinfo_t multiwrite_cmd = {
- .name = "multiwrite",
- .cfunc = multiwrite_f,
- .argmin = 2,
- .argmax = -1,
- .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]",
- .oneline = "issues multiple write requests at once",
- .help = multiwrite_help,
-};
-
-static int multiwrite_f(int argc, char **argv)
-{
- struct timeval t1, t2;
- int Cflag = 0, qflag = 0;
- int c, cnt;
- char **buf;
- int64_t offset, first_offset = 0;
- /* Some compilers get confused and warn if this is not initialized. */
- int total = 0;
- int nr_iov;
- int nr_reqs;
- int pattern = 0xcd;
- QEMUIOVector *qiovs;
- int i;
- BlockRequest *reqs;
-
- while ((c = getopt(argc, argv, "CqP:")) != EOF) {
- switch (c) {
- case 'C':
- Cflag = 1;
- break;
- case 'q':
- qflag = 1;
- break;
- case 'P':
- pattern = parse_pattern(optarg);
- if (pattern < 0) {
- return 0;
- }
- break;
- default:
- return command_usage(&writev_cmd);
- }
- }
-
- if (optind > argc - 2) {
- return command_usage(&writev_cmd);
- }
-
- nr_reqs = 1;
- for (i = optind; i < argc; i++) {
- if (!strcmp(argv[i], ";")) {
- nr_reqs++;
- }
- }
-
- reqs = g_malloc0(nr_reqs * sizeof(*reqs));
- buf = g_malloc0(nr_reqs * sizeof(*buf));
- qiovs = g_malloc(nr_reqs * sizeof(*qiovs));
-
- for (i = 0; i < nr_reqs && optind < argc; i++) {
- int j;
-
- /* Read the offset of the request */
- offset = cvtnum(argv[optind]);
- if (offset < 0) {
- printf("non-numeric offset argument -- %s\n", argv[optind]);
- goto out;
- }
- optind++;
-
- if (offset & 0x1ff) {
- printf("offset %lld is not sector aligned\n",
- (long long)offset);
- goto out;
- }
-
- if (i == 0) {
- first_offset = offset;
- }
-
- /* Read lengths for qiov entries */
- for (j = optind; j < argc; j++) {
- if (!strcmp(argv[j], ";")) {
- break;
- }
- }
-
- nr_iov = j - optind;
-
- /* Build request */
- buf[i] = create_iovec(&qiovs[i], &argv[optind], nr_iov, pattern);
- if (buf[i] == NULL) {
- goto out;
- }
-
- reqs[i].qiov = &qiovs[i];
- reqs[i].sector = offset >> 9;
- reqs[i].nb_sectors = reqs[i].qiov->size >> 9;
-
- optind = j + 1;
-
- pattern++;
- }
-
- /* If there were empty requests at the end, ignore them */
- nr_reqs = i;
-
- gettimeofday(&t1, NULL);
- cnt = do_aio_multiwrite(reqs, nr_reqs, &total);
- gettimeofday(&t2, NULL);
-
- if (cnt < 0) {
- printf("aio_multiwrite failed: %s\n", strerror(-cnt));
- goto out;
- }
-
- if (qflag) {
- goto out;
- }
-
- /* Finally, report back -- -C gives a parsable format */
- t2 = tsub(t2, t1);
- print_report("wrote", &t2, first_offset, total, total, cnt, Cflag);
-out:
- for (i = 0; i < nr_reqs; i++) {
- qemu_io_free(buf[i]);
- if (reqs[i].qiov != NULL) {
- qemu_iovec_destroy(&qiovs[i]);
- }
- }
- g_free(buf);
- g_free(reqs);
- g_free(qiovs);
- return 0;
-}
-
-struct aio_ctx {
- QEMUIOVector qiov;
- int64_t offset;
- char *buf;
- int qflag;
- int vflag;
- int Cflag;
- int Pflag;
- int pattern;
- struct timeval t1;
-};
-
-static void aio_write_done(void *opaque, int ret)
-{
- struct aio_ctx *ctx = opaque;
- struct timeval t2;
-
- gettimeofday(&t2, NULL);
-
-
- if (ret < 0) {
- printf("aio_write failed: %s\n", strerror(-ret));
- goto out;
- }
-
- if (ctx->qflag) {
- goto out;
- }
-
- /* Finally, report back -- -C gives a parsable format */
- t2 = tsub(t2, ctx->t1);
- print_report("wrote", &t2, ctx->offset, ctx->qiov.size,
- ctx->qiov.size, 1, ctx->Cflag);
-out:
- qemu_io_free(ctx->buf);
- qemu_iovec_destroy(&ctx->qiov);
- g_free(ctx);
-}
-
-static void aio_read_done(void *opaque, int ret)
-{
- struct aio_ctx *ctx = opaque;
- struct timeval t2;
-
- gettimeofday(&t2, NULL);
-
- if (ret < 0) {
- printf("readv failed: %s\n", strerror(-ret));
- goto out;
- }
-
- if (ctx->Pflag) {
- void *cmp_buf = g_malloc(ctx->qiov.size);
-
- memset(cmp_buf, ctx->pattern, ctx->qiov.size);
- if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) {
- printf("Pattern verification failed at offset %"
- PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size);
- }
- g_free(cmp_buf);
- }
-
- if (ctx->qflag) {
- goto out;
- }
-
- if (ctx->vflag) {
- dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size);
- }
-
- /* Finally, report back -- -C gives a parsable format */
- t2 = tsub(t2, ctx->t1);
- print_report("read", &t2, ctx->offset, ctx->qiov.size,
- ctx->qiov.size, 1, ctx->Cflag);
-out:
- qemu_io_free(ctx->buf);
- qemu_iovec_destroy(&ctx->qiov);
- g_free(ctx);
-}
-
-static void aio_read_help(void)
-{
- printf(
-"\n"
-" asynchronously reads a range of bytes from the given offset\n"
-"\n"
-" Example:\n"
-" 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
-"\n"
-" Reads a segment of the currently open file, optionally dumping it to the\n"
-" standard output stream (with -v option) for subsequent inspection.\n"
-" The read is performed asynchronously and the aio_flush command must be\n"
-" used to ensure all outstanding aio requests have been completed.\n"
-" -C, -- report statistics in a machine parsable format\n"
-" -P, -- use a pattern to verify read data\n"
-" -v, -- dump buffer to standard output\n"
-" -q, -- quiet mode, do not show I/O statistics\n"
-"\n");
-}
-
-static int aio_read_f(int argc, char **argv);
-
-static const cmdinfo_t aio_read_cmd = {
- .name = "aio_read",
- .cfunc = aio_read_f,
- .argmin = 2,
- .argmax = -1,
- .args = "[-Cqv] [-P pattern ] off len [len..]",
- .oneline = "asynchronously reads a number of bytes",
- .help = aio_read_help,
-};
-
-static int aio_read_f(int argc, char **argv)
-{
- int nr_iov, c;
- struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
-
- while ((c = getopt(argc, argv, "CP:qv")) != EOF) {
- switch (c) {
- case 'C':
- ctx->Cflag = 1;
- break;
- case 'P':
- ctx->Pflag = 1;
- ctx->pattern = parse_pattern(optarg);
- if (ctx->pattern < 0) {
- g_free(ctx);
- return 0;
- }
- break;
- case 'q':
- ctx->qflag = 1;
- break;
- case 'v':
- ctx->vflag = 1;
- break;
- default:
- g_free(ctx);
- return command_usage(&aio_read_cmd);
- }
- }
-
- if (optind > argc - 2) {
- g_free(ctx);
- return command_usage(&aio_read_cmd);
- }
-
- ctx->offset = cvtnum(argv[optind]);
- if (ctx->offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- g_free(ctx);
- return 0;
- }
- optind++;
-
- if (ctx->offset & 0x1ff) {
- printf("offset %" PRId64 " is not sector aligned\n",
- ctx->offset);
- g_free(ctx);
- return 0;
- }
-
- nr_iov = argc - optind;
- ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab);
- if (ctx->buf == NULL) {
- g_free(ctx);
- return 0;
- }
-
- gettimeofday(&ctx->t1, NULL);
- bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov,
- ctx->qiov.size >> 9, aio_read_done, ctx);
- return 0;
-}
-
-static void aio_write_help(void)
-{
- printf(
-"\n"
-" asynchronously writes a range of bytes from the given offset source\n"
-" from multiple buffers\n"
-"\n"
-" Example:\n"
-" 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
-"\n"
-" Writes into a segment of the currently open file, using a buffer\n"
-" filled with a set pattern (0xcdcdcdcd).\n"
-" The write is performed asynchronously and the aio_flush command must be\n"
-" used to ensure all outstanding aio requests have been completed.\n"
-" -P, -- use different pattern to fill file\n"
-" -C, -- report statistics in a machine parsable format\n"
-" -q, -- quiet mode, do not show I/O statistics\n"
-"\n");
-}
-
-static int aio_write_f(int argc, char **argv);
-
-static const cmdinfo_t aio_write_cmd = {
- .name = "aio_write",
- .cfunc = aio_write_f,
- .argmin = 2,
- .argmax = -1,
- .args = "[-Cq] [-P pattern ] off len [len..]",
- .oneline = "asynchronously writes a number of bytes",
- .help = aio_write_help,
-};
-
-static int aio_write_f(int argc, char **argv)
-{
- int nr_iov, c;
- int pattern = 0xcd;
- struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
-
- while ((c = getopt(argc, argv, "CqP:")) != EOF) {
- switch (c) {
- case 'C':
- ctx->Cflag = 1;
- break;
- case 'q':
- ctx->qflag = 1;
- break;
- case 'P':
- pattern = parse_pattern(optarg);
- if (pattern < 0) {
- g_free(ctx);
- return 0;
- }
- break;
- default:
- g_free(ctx);
- return command_usage(&aio_write_cmd);
- }
- }
-
- if (optind > argc - 2) {
- g_free(ctx);
- return command_usage(&aio_write_cmd);
- }
-
- ctx->offset = cvtnum(argv[optind]);
- if (ctx->offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- g_free(ctx);
- return 0;
- }
- optind++;
-
- if (ctx->offset & 0x1ff) {
- printf("offset %" PRId64 " is not sector aligned\n",
- ctx->offset);
- g_free(ctx);
- return 0;
- }
-
- nr_iov = argc - optind;
- ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern);
- if (ctx->buf == NULL) {
- g_free(ctx);
- return 0;
- }
-
- gettimeofday(&ctx->t1, NULL);
- bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov,
- ctx->qiov.size >> 9, aio_write_done, ctx);
- return 0;
-}
-
-static int aio_flush_f(int argc, char **argv)
-{
- bdrv_drain_all();
- return 0;
-}
-
-static const cmdinfo_t aio_flush_cmd = {
- .name = "aio_flush",
- .cfunc = aio_flush_f,
- .oneline = "completes all outstanding aio requests"
-};
-
-static int flush_f(int argc, char **argv)
-{
- bdrv_flush(bs);
- return 0;
-}
-
-static const cmdinfo_t flush_cmd = {
- .name = "flush",
- .altname = "f",
- .cfunc = flush_f,
- .oneline = "flush all in-core file state to disk",
-};
-
-static int truncate_f(int argc, char **argv)
-{
- int64_t offset;
- int ret;
-
- offset = cvtnum(argv[1]);
- if (offset < 0) {
- printf("non-numeric truncate argument -- %s\n", argv[1]);
- return 0;
- }
-
- ret = bdrv_truncate(bs, offset);
- if (ret < 0) {
- printf("truncate: %s\n", strerror(-ret));
- return 0;
- }
-
- return 0;
-}
-
-static const cmdinfo_t truncate_cmd = {
- .name = "truncate",
- .altname = "t",
- .cfunc = truncate_f,
- .argmin = 1,
- .argmax = 1,
- .args = "off",
- .oneline = "truncates the current file at the given offset",
-};
-
-static int length_f(int argc, char **argv)
-{
- int64_t size;
- char s1[64];
-
- size = bdrv_getlength(bs);
- if (size < 0) {
- printf("getlength: %s\n", strerror(-size));
- return 0;
- }
-
- cvtstr(size, s1, sizeof(s1));
- printf("%s\n", s1);
- return 0;
-}
-
-
-static const cmdinfo_t length_cmd = {
- .name = "length",
- .altname = "l",
- .cfunc = length_f,
- .oneline = "gets the length of the current file",
-};
-
-
-static int info_f(int argc, char **argv)
-{
- BlockDriverInfo bdi;
- char s1[64], s2[64];
- int ret;
-
- if (bs->drv && bs->drv->format_name) {
- printf("format name: %s\n", bs->drv->format_name);
- }
- if (bs->drv && bs->drv->protocol_name) {
- printf("format name: %s\n", bs->drv->protocol_name);
- }
-
- ret = bdrv_get_info(bs, &bdi);
- if (ret) {
- return 0;
- }
-
- cvtstr(bdi.cluster_size, s1, sizeof(s1));
- cvtstr(bdi.vm_state_offset, s2, sizeof(s2));
-
- printf("cluster size: %s\n", s1);
- printf("vm state offset: %s\n", s2);
-
- return 0;
-}
-
-
-
-static const cmdinfo_t info_cmd = {
- .name = "info",
- .altname = "i",
- .cfunc = info_f,
- .oneline = "prints information about the current file",
-};
-
-static void discard_help(void)
-{
- printf(
-"\n"
-" discards a range of bytes from the given offset\n"
-"\n"
-" Example:\n"
-" 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n"
-"\n"
-" Discards a segment of the currently open file.\n"
-" -C, -- report statistics in a machine parsable format\n"
-" -q, -- quiet mode, do not show I/O statistics\n"
-"\n");
-}
-
-static int discard_f(int argc, char **argv);
-
-static const cmdinfo_t discard_cmd = {
- .name = "discard",
- .altname = "d",
- .cfunc = discard_f,
- .argmin = 2,
- .argmax = -1,
- .args = "[-Cq] off len",
- .oneline = "discards a number of bytes at a specified offset",
- .help = discard_help,
-};
-
-static int discard_f(int argc, char **argv)
-{
- struct timeval t1, t2;
- int Cflag = 0, qflag = 0;
- int c, ret;
- int64_t offset;
- int count;
-
- while ((c = getopt(argc, argv, "Cq")) != EOF) {
- switch (c) {
- case 'C':
- Cflag = 1;
- break;
- case 'q':
- qflag = 1;
- break;
- default:
- return command_usage(&discard_cmd);
- }
- }
-
- if (optind != argc - 2) {
- return command_usage(&discard_cmd);
- }
-
- offset = cvtnum(argv[optind]);
- if (offset < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- return 0;
- }
-
- optind++;
- count = cvtnum(argv[optind]);
- if (count < 0) {
- printf("non-numeric length argument -- %s\n", argv[optind]);
- return 0;
- }
-
- gettimeofday(&t1, NULL);
- ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS,
- count >> BDRV_SECTOR_BITS);
- gettimeofday(&t2, NULL);
-
- if (ret < 0) {
- printf("discard failed: %s\n", strerror(-ret));
- goto out;
- }
-
- /* Finally, report back -- -C gives a parsable format */
- if (!qflag) {
- t2 = tsub(t2, t1);
- print_report("discard", &t2, offset, count, count, 1, Cflag);
- }
-
-out:
- return 0;
-}
-
-static int alloc_f(int argc, char **argv)
-{
- int64_t offset, sector_num;
- int nb_sectors, remaining;
- char s1[64];
- int num, sum_alloc;
- int ret;
-
- offset = cvtnum(argv[1]);
- if (offset & 0x1ff) {
- printf("offset %" PRId64 " is not sector aligned\n",
- offset);
- return 0;
- }
-
- if (argc == 3) {
- nb_sectors = cvtnum(argv[2]);
- } else {
- nb_sectors = 1;
- }
-
- remaining = nb_sectors;
- sum_alloc = 0;
- sector_num = offset >> 9;
- while (remaining) {
- ret = bdrv_is_allocated(bs, sector_num, remaining, &num);
- sector_num += num;
- remaining -= num;
- if (ret) {
- sum_alloc += num;
- }
- if (num == 0) {
- nb_sectors -= remaining;
- remaining = 0;
- }
- }
-
- cvtstr(offset, s1, sizeof(s1));
-
- printf("%d/%d sectors allocated at offset %s\n",
- sum_alloc, nb_sectors, s1);
- return 0;
-}
-
-static const cmdinfo_t alloc_cmd = {
- .name = "alloc",
- .altname = "a",
- .argmin = 1,
- .argmax = 2,
- .cfunc = alloc_f,
- .args = "off [sectors]",
- .oneline = "checks if a sector is present in the file",
-};
-
-
-static int map_is_allocated(int64_t sector_num, int64_t nb_sectors, int64_t *pnum)
-{
- int num, num_checked;
- int ret, firstret;
-
- num_checked = MIN(nb_sectors, INT_MAX);
- ret = bdrv_is_allocated(bs, sector_num, num_checked, &num);
- if (ret < 0) {
- return ret;
- }
-
- firstret = ret;
- *pnum = num;
-
- while (nb_sectors > 0 && ret == firstret) {
- sector_num += num;
- nb_sectors -= num;
-
- num_checked = MIN(nb_sectors, INT_MAX);
- ret = bdrv_is_allocated(bs, sector_num, num_checked, &num);
- if (ret == firstret) {
- *pnum += num;
- } else {
- break;
- }
- }
-
- return firstret;
-}
-
-static int map_f(int argc, char **argv)
-{
- int64_t offset;
- int64_t nb_sectors;
- char s1[64];
- int64_t num;
- int ret;
- const char *retstr;
-
- offset = 0;
- nb_sectors = bs->total_sectors;
-
- do {
- ret = map_is_allocated(offset, nb_sectors, &num);
- if (ret < 0) {
- error_report("Failed to get allocation status: %s", strerror(-ret));
- return 0;
- }
-
- retstr = ret ? " allocated" : "not allocated";
- cvtstr(offset << 9ULL, s1, sizeof(s1));
- printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s "
- "at offset %s (%d)\n",
- offset << 9ULL, num, nb_sectors, retstr, s1, ret);
-
- offset += num;
- nb_sectors -= num;
- } while (offset < bs->total_sectors);
-
- return 0;
-}
-
-static const cmdinfo_t map_cmd = {
- .name = "map",
- .argmin = 0,
- .argmax = 0,
- .cfunc = map_f,
- .args = "",
- .oneline = "prints the allocated areas of a file",
-};
-
-static int break_f(int argc, char **argv)
-{
- int ret;
-
- ret = bdrv_debug_breakpoint(bs, argv[1], argv[2]);
- if (ret < 0) {
- printf("Could not set breakpoint: %s\n", strerror(-ret));
- }
-
- return 0;
-}
-
-static const cmdinfo_t break_cmd = {
- .name = "break",
- .argmin = 2,
- .argmax = 2,
- .cfunc = break_f,
- .args = "event tag",
- .oneline = "sets a breakpoint on event and tags the stopped "
- "request as tag",
-};
-
-static int resume_f(int argc, char **argv)
-{
- int ret;
-
- ret = bdrv_debug_resume(bs, argv[1]);
- if (ret < 0) {
- printf("Could not resume request: %s\n", strerror(-ret));
- }
-
- return 0;
-}
-
-static const cmdinfo_t resume_cmd = {
- .name = "resume",
- .argmin = 1,
- .argmax = 1,
- .cfunc = resume_f,
- .args = "tag",
- .oneline = "resumes the request tagged as tag",
-};
-
-static int wait_break_f(int argc, char **argv)
-{
- while (!bdrv_debug_is_suspended(bs, argv[1])) {
- qemu_aio_wait();
- }
-
- return 0;
-}
-
-static const cmdinfo_t wait_break_cmd = {
- .name = "wait_break",
- .argmin = 1,
- .argmax = 1,
- .cfunc = wait_break_f,
- .args = "tag",
- .oneline = "waits for the suspension of a request",
-};
-
-static int abort_f(int argc, char **argv)
-{
- abort();
-}
-
-static const cmdinfo_t abort_cmd = {
- .name = "abort",
- .cfunc = abort_f,
- .flags = CMD_NOFILE_OK,
- .oneline = "simulate a program crash using abort(3)",
-};
-
-static int close_f(int argc, char **argv)
+static int close_f(BlockDriverState *bs, int argc, char **argv)
{
bdrv_delete(bs);
- bs = NULL;
+ qemuio_bs = NULL;
return 0;
}
@@ -1796,23 +46,23 @@ static const cmdinfo_t close_cmd = {
static int openfile(char *name, int flags, int growable)
{
- if (bs) {
+ if (qemuio_bs) {
fprintf(stderr, "file open already, try 'help close'\n");
return 1;
}
if (growable) {
- if (bdrv_file_open(&bs, name, NULL, flags)) {
+ if (bdrv_file_open(&qemuio_bs, name, NULL, flags)) {
fprintf(stderr, "%s: can't open device %s\n", progname, name);
return 1;
}
} else {
- bs = bdrv_new("hda");
+ qemuio_bs = bdrv_new("hda");
- if (bdrv_open(bs, name, NULL, flags, NULL) < 0) {
+ if (bdrv_open(qemuio_bs, name, NULL, flags, NULL) < 0) {
fprintf(stderr, "%s: can't open device %s\n", progname, name);
- bdrv_delete(bs);
- bs = NULL;
+ bdrv_delete(qemuio_bs);
+ qemuio_bs = NULL;
return 1;
}
}
@@ -1837,7 +87,7 @@ static void open_help(void)
"\n");
}
-static int open_f(int argc, char **argv);
+static int open_f(BlockDriverState *bs, int argc, char **argv);
static const cmdinfo_t open_cmd = {
.name = "open",
@@ -1851,7 +101,7 @@ static const cmdinfo_t open_cmd = {
.help = open_help,
};
-static int open_f(int argc, char **argv)
+static int open_f(BlockDriverState *bs, int argc, char **argv)
{
int flags = 0;
int readonly = 0;
@@ -1873,7 +123,7 @@ static int open_f(int argc, char **argv)
growable = 1;
break;
default:
- return command_usage(&open_cmd);
+ return qemuio_command_usage(&open_cmd);
}
}
@@ -1882,33 +132,27 @@ static int open_f(int argc, char **argv)
}
if (optind != argc - 1) {
- return command_usage(&open_cmd);
+ return qemuio_command_usage(&open_cmd);
}
return openfile(argv[optind], flags, growable);
}
-static int init_args_command(int index)
-{
- /* only one device allowed so far */
- if (index >= 1) {
- return 0;
- }
- return ++index;
-}
-
-static int init_check_command(const cmdinfo_t *ct)
+static int quit_f(BlockDriverState *bs, int argc, char **argv)
{
- if (ct->flags & CMD_FLAG_GLOBAL) {
- return 1;
- }
- if (!(ct->flags & CMD_NOFILE_OK) && !bs) {
- fprintf(stderr, "no file open, try 'help open'\n");
- return 0;
- }
return 1;
}
+static const cmdinfo_t quit_cmd = {
+ .name = "quit",
+ .altname = "q",
+ .cfunc = quit_f,
+ .argmin = -1,
+ .argmax = -1,
+ .flags = CMD_FLAG_GLOBAL,
+ .oneline = "exit the program",
+};
+
static void usage(const char *name)
{
printf(
@@ -1931,6 +175,141 @@ static void usage(const char *name)
}
+#if defined(ENABLE_READLINE)
+# include <readline/history.h>
+# include <readline/readline.h>
+#elif defined(ENABLE_EDITLINE)
+# include <histedit.h>
+#endif
+
+static char *get_prompt(void)
+{
+ static char prompt[FILENAME_MAX + 2 /*"> "*/ + 1 /*"\0"*/ ];
+
+ if (!prompt[0]) {
+ snprintf(prompt, sizeof(prompt), "%s> ", progname);
+ }
+
+ return prompt;
+}
+
+#if defined(ENABLE_READLINE)
+static char *fetchline(void)
+{
+ char *line = readline(get_prompt());
+ if (line && *line) {
+ add_history(line);
+ }
+ return line;
+}
+#elif defined(ENABLE_EDITLINE)
+static char *el_get_prompt(EditLine *e)
+{
+ return get_prompt();
+}
+
+static char *fetchline(void)
+{
+ static EditLine *el;
+ static History *hist;
+ HistEvent hevent;
+ char *line;
+ int count;
+
+ if (!el) {
+ hist = history_init();
+ history(hist, &hevent, H_SETSIZE, 100);
+ el = el_init(progname, stdin, stdout, stderr);
+ el_source(el, NULL);
+ el_set(el, EL_SIGNAL, 1);
+ el_set(el, EL_PROMPT, el_get_prompt);
+ el_set(el, EL_HIST, history, (const char *)hist);
+ }
+ line = strdup(el_gets(el, &count));
+ if (line) {
+ if (count > 0) {
+ line[count-1] = '\0';
+ }
+ if (*line) {
+ history(hist, &hevent, H_ENTER, line);
+ }
+ }
+ return line;
+}
+#else
+# define MAXREADLINESZ 1024
+static char *fetchline(void)
+{
+ char *p, *line = g_malloc(MAXREADLINESZ);
+
+ if (!fgets(line, MAXREADLINESZ, stdin)) {
+ g_free(line);
+ return NULL;
+ }
+
+ p = line + strlen(line);
+ if (p != line && p[-1] == '\n') {
+ p[-1] = '\0';
+ }
+
+ return line;
+}
+#endif
+
+static void prep_fetchline(void *opaque)
+{
+ int *fetchable = opaque;
+
+ qemu_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL);
+ *fetchable= 1;
+}
+
+static void command_loop(void)
+{
+ int i, done = 0, fetchable = 0, prompted = 0;
+ char *input;
+
+ for (i = 0; !done && i < ncmdline; i++) {
+ done = qemuio_command(qemuio_bs, cmdline[i]);
+ }
+ if (cmdline) {
+ g_free(cmdline);
+ return;
+ }
+
+ while (!done) {
+ if (!prompted) {
+ printf("%s", get_prompt());
+ fflush(stdout);
+ qemu_set_fd_handler(STDIN_FILENO, prep_fetchline, NULL, &fetchable);
+ prompted = 1;
+ }
+
+ main_loop_wait(false);
+
+ if (!fetchable) {
+ continue;
+ }
+
+ input = fetchline();
+ if (input == NULL) {
+ break;
+ }
+ done = qemuio_command(qemuio_bs, input);
+ g_free(input);
+
+ prompted = 0;
+ fetchable = 0;
+ }
+ qemu_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL);
+}
+
+static void add_user_command(char *optarg)
+{
+ cmdline = g_realloc(cmdline, ++ncmdline * sizeof(char *));
+ cmdline[ncmdline-1] = optarg;
+}
+
int main(int argc, char **argv)
{
int readonly = 0;
@@ -1979,7 +358,7 @@ int main(int argc, char **argv)
readonly = 1;
break;
case 'm':
- misalign = 1;
+ qemuio_misalign = 1;
break;
case 'g':
growable = 1;
@@ -1999,7 +378,7 @@ int main(int argc, char **argv)
}
break;
case 'V':
- printf("%s version %s\n", progname, VERSION);
+ printf("%s version %s\n", progname, QEMU_VERSION);
exit(0);
case 'h':
usage(progname);
@@ -2019,32 +398,9 @@ int main(int argc, char **argv)
bdrv_init();
/* initialize commands */
- quit_init();
- help_init();
- add_command(&open_cmd);
- add_command(&close_cmd);
- add_command(&read_cmd);
- add_command(&readv_cmd);
- add_command(&write_cmd);
- add_command(&writev_cmd);
- add_command(&multiwrite_cmd);
- add_command(&aio_read_cmd);
- add_command(&aio_write_cmd);
- add_command(&aio_flush_cmd);
- add_command(&flush_cmd);
- add_command(&truncate_cmd);
- add_command(&length_cmd);
- add_command(&info_cmd);
- add_command(&discard_cmd);
- add_command(&alloc_cmd);
- add_command(&map_cmd);
- add_command(&break_cmd);
- add_command(&resume_cmd);
- add_command(&wait_break_cmd);
- add_command(&abort_cmd);
-
- add_args_command(init_args_command);
- add_check_command(init_check_command);
+ qemuio_add_command(&quit_cmd);
+ qemuio_add_command(&open_cmd);
+ qemuio_add_command(&close_cmd);
/* open the device */
if (!readonly) {
@@ -2061,8 +417,8 @@ int main(int argc, char **argv)
*/
bdrv_drain_all();
- if (bs) {
- bdrv_delete(bs);
+ if (qemuio_bs) {
+ bdrv_delete(qemuio_bs);
}
return 0;
}
diff --git a/qmp-commands.hx b/qmp-commands.hx
index ffd130edf6..8cea5e554c 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -1704,6 +1704,47 @@ Each json-object contain the following:
- "iops": limit total I/O operations per second (json-int)
- "iops_rd": limit read operations per second (json-int)
- "iops_wr": limit write operations per second (json-int)
+ - "image": the detail of the image, it is a json-object containing
+ the following:
+ - "filename": image file name (json-string)
+ - "format": image format (json-string)
+ - "virtual-size": image capacity in bytes (json-int)
+ - "dirty-flag": true if image is not cleanly closed, not present
+ means clean (json-bool, optional)
+ - "actual-size": actual size on disk in bytes of the image, not
+ present when image does not support thin
+ provision (json-int, optional)
+ - "cluster-size": size of a cluster in bytes, not present if image
+ format does not support it (json-int, optional)
+ - "encrypted": true if the image is encrypted, not present means
+ false or the image format does not support
+ encryption (json-bool, optional)
+ - "backing_file": backing file name, not present means no backing
+ file is used or the image format does not
+ support backing file chain
+ (json-string, optional)
+ - "full-backing-filename": full path of the backing file, not
+ present if it equals backing_file or no
+ backing file is used
+ (json-string, optional)
+ - "backing-filename-format": the format of the backing file, not
+ present means unknown or no backing
+ file (json-string, optional)
+ - "snapshots": the internal snapshot info, it is an optional list
+ of json-object containing the following:
+ - "id": unique snapshot id (json-string)
+ - "name": snapshot name (json-string)
+ - "vm-state-size": size of the VM state in bytes (json-int)
+ - "date-sec": UTC date of the snapshot in seconds (json-int)
+ - "date-nsec": fractional part in nanoseconds to be used with
+ date-sec(json-int)
+ - "vm-clock-sec": VM clock relative to boot in seconds
+ (json-int)
+ - "vm-clock-nsec": fractional part in nanoseconds to be used
+ with vm-clock-sec (json-int)
+ - "backing-image": the detail of the backing image, it is an
+ optional json-object only present when a
+ backing image present for this image
- "io-status": I/O operation status, only present if the device supports it
and the VM is configured to stop on errors. It's always reset
@@ -1724,14 +1765,38 @@ Example:
"ro":false,
"drv":"qcow2",
"encrypted":false,
- "file":"disks/test.img",
- "backing_file_depth":0,
+ "file":"disks/test.qcow2",
+ "backing_file_depth":1,
"bps":1000000,
"bps_rd":0,
"bps_wr":0,
"iops":1000000,
"iops_rd":0,
"iops_wr":0,
+ "image":{
+ "filename":"disks/test.qcow2",
+ "format":"qcow2",
+ "virtual-size":2048000,
+ "backing_file":"base.qcow2",
+ "full-backing-filename":"disks/base.qcow2",
+ "backing-filename-format:"qcow2",
+ "snapshots":[
+ {
+ "id": "1",
+ "name": "snapshot1",
+ "vm-state-size": 0,
+ "date-sec": 10000200,
+ "date-nsec": 12,
+ "vm-clock-sec": 206,
+ "vm-clock-nsec": 30
+ }
+ ],
+ "backing-image":{
+ "filename":"disks/base.qcow2",
+ "format":"qcow2",
+ "virtual-size":2048000
+ }
+ }
},
"type":"unknown"
},
diff --git a/tests/ide-test.c b/tests/ide-test.c
index 365e9959ff..828e71a38c 100644
--- a/tests/ide-test.c
+++ b/tests/ide-test.c
@@ -64,6 +64,7 @@ enum {
};
enum {
+ DEV = 0x10,
LBA = 0x40,
};
@@ -76,6 +77,7 @@ enum {
enum {
CMD_READ_DMA = 0xc8,
CMD_WRITE_DMA = 0xca,
+ CMD_FLUSH_CACHE = 0xe7,
CMD_IDENTIFY = 0xec,
CMDF_ABORT = 0x100,
@@ -394,7 +396,7 @@ static void test_identify(void)
/* Read in the IDENTIFY buffer and check registers */
data = inb(IDE_BASE + reg_device);
- g_assert_cmpint(data & 0x10, ==, 0);
+ g_assert_cmpint(data & DEV, ==, 0);
for (i = 0; i < 256; i++) {
data = inb(IDE_BASE + reg_status);
@@ -423,6 +425,43 @@ static void test_identify(void)
ide_test_quit();
}
+static void test_flush(void)
+{
+ uint8_t data;
+
+ ide_test_start(
+ "-vnc none "
+ "-drive file=blkdebug::%s,if=ide,cache=writeback",
+ tmp_path);
+
+ /* Delay the completion of the flush request until we explicitly do it */
+ qmp("{'execute':'human-monitor-command', 'arguments': { "
+ "'command-line': 'qemu-io ide0-hd0 \"break flush_to_os A\"'} }");
+
+ /* FLUSH CACHE command on device 0*/
+ outb(IDE_BASE + reg_device, 0);
+ outb(IDE_BASE + reg_command, CMD_FLUSH_CACHE);
+
+ /* Check status while request is in flight*/
+ data = inb(IDE_BASE + reg_status);
+ assert_bit_set(data, BSY | DRDY);
+ assert_bit_clear(data, DF | ERR | DRQ);
+
+ /* Complete the command */
+ qmp("{'execute':'human-monitor-command', 'arguments': { "
+ "'command-line': 'qemu-io ide0-hd0 \"resume A\"'} }");
+
+ /* Check registers */
+ data = inb(IDE_BASE + reg_device);
+ g_assert_cmpint(data & DEV, ==, 0);
+
+ data = inb(IDE_BASE + reg_status);
+ assert_bit_set(data, DRDY);
+ assert_bit_clear(data, BSY | DF | ERR | DRQ);
+
+ ide_test_quit();
+}
+
int main(int argc, char **argv)
{
const char *arch = qtest_get_arch();
@@ -453,6 +492,8 @@ int main(int argc, char **argv)
qtest_add_func("/ide/bmdma/long_prdt", test_bmdma_long_prdt);
qtest_add_func("/ide/bmdma/teardown", test_bmdma_teardown);
+ qtest_add_func("/ide/flush", test_flush);
+
ret = g_test_run();
/* Cleanup */
diff --git a/tests/qemu-iotests/049.out b/tests/qemu-iotests/049.out
index 72db13f8d2..d2f0efe16d 100644
--- a/tests/qemu-iotests/049.out
+++ b/tests/qemu-iotests/049.out
@@ -108,15 +108,15 @@ qemu-img: Formatting or formatting option not supported for file format 'qcow2'
Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=-1024 encryption=off cluster_size=65536 lazy_refcounts=off
qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- 1kilobyte
-qemu-img: Invalid image size specified! You may use k, M, G or T suffixes for
-qemu-img: kilobytes, megabytes, gigabytes and terabytes.
+qemu-img: Invalid image size specified! You may use k, M, G, T, P or E suffixes for
+qemu-img: kilobytes, megabytes, gigabytes, terabytes, petabytes and exabytes.
qemu-img create -f qcow2 -o size=1kilobyte TEST_DIR/t.qcow2
Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off
qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- foobar
-qemu-img: Invalid image size specified! You may use k, M, G or T suffixes for
-qemu-img: kilobytes, megabytes, gigabytes and terabytes.
+qemu-img: Invalid image size specified! You may use k, M, G, T, P or E suffixes for
+qemu-img: kilobytes, megabytes, gigabytes, terabytes, petabytes and exabytes.
qemu-img create -f qcow2 -o size=foobar TEST_DIR/t.qcow2
qemu-img: Parameter 'size' expects a size
diff --git a/util/cutils.c b/util/cutils.c
index a1658197cf..0116fcde74 100644
--- a/util/cutils.c
+++ b/util/cutils.c
@@ -107,6 +107,27 @@ int qemu_strnlen(const char *s, int max_len)
return i;
}
+char *qemu_strsep(char **input, const char *delim)
+{
+ char *result = *input;
+ if (result != NULL) {
+ char *p;
+
+ for (p = result; *p != '\0'; p++) {
+ if (strchr(delim, *p)) {
+ break;
+ }
+ }
+ if (*p == '\0') {
+ *input = NULL;
+ } else {
+ *p = '\0';
+ *input = p + 1;
+ }
+ }
+ return result;
+}
+
time_t mktimegm(struct tm *tm)
{
time_t t;
@@ -267,6 +288,10 @@ static int64_t suffix_mul(char suffix, int64_t unit)
return unit * unit * unit;
case STRTOSZ_DEFSUFFIX_TB:
return unit * unit * unit * unit;
+ case STRTOSZ_DEFSUFFIX_PB:
+ return unit * unit * unit * unit * unit;
+ case STRTOSZ_DEFSUFFIX_EB:
+ return unit * unit * unit * unit * unit * unit;
}
return -1;
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-08 00:58:39 +0000