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-rw-r--r--qemu-config.c56
-rw-r--r--qemu-config.h2
-rw-r--r--qemu-options.hx3
-rw-r--r--vl.c6
4 files changed, 67 insertions, 0 deletions
diff --git a/qemu-config.c b/qemu-config.c
index 92b5363ecf..a23b1256eb 100644
--- a/qemu-config.c
+++ b/qemu-config.c
@@ -2,6 +2,7 @@
#include "qemu-option.h"
#include "qemu-config.h"
#include "sysemu.h"
+#include "hw/qdev.h"
QemuOptsList qemu_drive_opts = {
.name = "drive",
@@ -205,6 +206,24 @@ QemuOptsList qemu_rtc_opts = {
},
};
+QemuOptsList qemu_global_opts = {
+ .name = "global",
+ .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
+ .desc = {
+ {
+ .name = "driver",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "property",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "value",
+ .type = QEMU_OPT_STRING,
+ },
+ { /* end if list */ }
+ },
+};
+
static QemuOptsList *lists[] = {
&qemu_drive_opts,
&qemu_chardev_opts,
@@ -212,6 +231,7 @@ static QemuOptsList *lists[] = {
&qemu_netdev_opts,
&qemu_net_opts,
&qemu_rtc_opts,
+ &qemu_global_opts,
NULL,
};
@@ -260,6 +280,42 @@ int qemu_set_option(const char *str)
return 0;
}
+int qemu_global_option(const char *str)
+{
+ char driver[64], property[64];
+ QemuOpts *opts;
+ int rc, offset;
+
+ rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
+ if (rc < 2 || str[offset] != '=') {
+ qemu_error("can't parse: \"%s\"\n", str);
+ return -1;
+ }
+
+ opts = qemu_opts_create(&qemu_global_opts, NULL, 0);
+ qemu_opt_set(opts, "driver", driver);
+ qemu_opt_set(opts, "property", property);
+ qemu_opt_set(opts, "value", str+offset+1);
+ return 0;
+}
+
+static int qemu_add_one_global(QemuOpts *opts, void *opaque)
+{
+ GlobalProperty *g;
+
+ g = qemu_mallocz(sizeof(*g));
+ g->driver = qemu_opt_get(opts, "driver");
+ g->property = qemu_opt_get(opts, "property");
+ g->value = qemu_opt_get(opts, "value");
+ qdev_prop_register_global(g);
+ return 0;
+}
+
+void qemu_add_globals(void)
+{
+ qemu_opts_foreach(&qemu_global_opts, qemu_add_one_global, NULL, 0);
+}
+
struct ConfigWriteData {
QemuOptsList *list;
FILE *fp;
diff --git a/qemu-config.h b/qemu-config.h
index b56485165b..6246e76fcd 100644
--- a/qemu-config.h
+++ b/qemu-config.h
@@ -9,6 +9,8 @@ extern QemuOptsList qemu_net_opts;
extern QemuOptsList qemu_rtc_opts;
int qemu_set_option(const char *str);
+int qemu_global_option(const char *str);
+void qemu_add_globals(void);
void qemu_config_write(FILE *fp);
int qemu_config_parse(FILE *fp);
diff --git a/qemu-options.hx b/qemu-options.hx
index 1b5781a10b..b6f307599c 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -109,6 +109,9 @@ DEF("set", HAS_ARG, QEMU_OPTION_set,
"-set group.id.arg=value\n"
" set <arg> parameter for item <id> of type <group>\n"
" i.e. -set drive.$id.file=/path/to/image\n")
+DEF("global", HAS_ARG, QEMU_OPTION_global,
+ "-global driver.property=value\n"
+ " set a global default for a driver property\n")
STEXI
@item -drive @var{option}[,@var{option}[,@var{option}[,...]]]
diff --git a/vl.c b/vl.c
index a242a11c44..f7acdd42cb 100644
--- a/vl.c
+++ b/vl.c
@@ -4851,6 +4851,10 @@ int main(int argc, char **argv, char **envp)
if (qemu_set_option(optarg) != 0)
exit(1);
break;
+ case QEMU_OPTION_global:
+ if (qemu_global_option(optarg) != 0)
+ exit(1);
+ break;
case QEMU_OPTION_mtdblock:
drive_add(optarg, MTD_ALIAS);
break;
@@ -5781,6 +5785,8 @@ int main(int argc, char **argv, char **envp)
if (machine->compat_props) {
qdev_prop_register_global_list(machine->compat_props);
}
+ qemu_add_globals();
+
machine->init(ram_size, boot_devices,
kernel_filename, kernel_cmdline, initrd_filename, cpu_model);