diff options
Diffstat (limited to 'hw/fw_cfg.c')
| -rw-r--r-- | hw/fw_cfg.c | 574 |
1 files changed, 0 insertions, 574 deletions
diff --git a/hw/fw_cfg.c b/hw/fw_cfg.c deleted file mode 100644 index 63a199876c..0000000000 --- a/hw/fw_cfg.c +++ /dev/null @@ -1,574 +0,0 @@ -/* - * QEMU Firmware configuration device emulation - * - * Copyright (c) 2008 Gleb Natapov - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include "hw/hw.h" -#include "sysemu/sysemu.h" -#include "hw/isa.h" -#include "hw/fw_cfg.h" -#include "hw/sysbus.h" -#include "trace.h" -#include "qemu/error-report.h" -#include "qemu/config-file.h" - -#define FW_CFG_SIZE 2 -#define FW_CFG_DATA_SIZE 1 - -typedef struct FWCfgEntry { - uint32_t len; - uint8_t *data; - void *callback_opaque; - FWCfgCallback callback; -} FWCfgEntry; - -struct FWCfgState { - SysBusDevice busdev; - MemoryRegion ctl_iomem, data_iomem, comb_iomem; - uint32_t ctl_iobase, data_iobase; - FWCfgEntry entries[2][FW_CFG_MAX_ENTRY]; - FWCfgFiles *files; - uint16_t cur_entry; - uint32_t cur_offset; - Notifier machine_ready; -}; - -#define JPG_FILE 0 -#define BMP_FILE 1 - -static char *read_splashfile(char *filename, size_t *file_sizep, - int *file_typep) -{ - GError *err = NULL; - gboolean res; - gchar *content; - int file_type; - unsigned int filehead; - int bmp_bpp; - - res = g_file_get_contents(filename, &content, file_sizep, &err); - if (res == FALSE) { - error_report("failed to read splash file '%s'", filename); - g_error_free(err); - return NULL; - } - - /* check file size */ - if (*file_sizep < 30) { - goto error; - } - - /* check magic ID */ - filehead = ((content[0] & 0xff) + (content[1] << 8)) & 0xffff; - if (filehead == 0xd8ff) { - file_type = JPG_FILE; - } else if (filehead == 0x4d42) { - file_type = BMP_FILE; - } else { - goto error; - } - - /* check BMP bpp */ - if (file_type == BMP_FILE) { - bmp_bpp = (content[28] + (content[29] << 8)) & 0xffff; - if (bmp_bpp != 24) { - goto error; - } - } - - /* return values */ - *file_typep = file_type; - - return content; - -error: - error_report("splash file '%s' format not recognized; must be JPEG " - "or 24 bit BMP", filename); - g_free(content); - return NULL; -} - -static void fw_cfg_bootsplash(FWCfgState *s) -{ - int boot_splash_time = -1; - const char *boot_splash_filename = NULL; - char *p; - char *filename, *file_data; - size_t file_size; - int file_type; - const char *temp; - - /* get user configuration */ - QemuOptsList *plist = qemu_find_opts("boot-opts"); - QemuOpts *opts = QTAILQ_FIRST(&plist->head); - if (opts != NULL) { - temp = qemu_opt_get(opts, "splash"); - if (temp != NULL) { - boot_splash_filename = temp; - } - temp = qemu_opt_get(opts, "splash-time"); - if (temp != NULL) { - p = (char *)temp; - boot_splash_time = strtol(p, (char **)&p, 10); - } - } - - /* insert splash time if user configurated */ - if (boot_splash_time >= 0) { - /* validate the input */ - if (boot_splash_time > 0xffff) { - error_report("splash time is big than 65535, force it to 65535."); - boot_splash_time = 0xffff; - } - /* use little endian format */ - qemu_extra_params_fw[0] = (uint8_t)(boot_splash_time & 0xff); - qemu_extra_params_fw[1] = (uint8_t)((boot_splash_time >> 8) & 0xff); - fw_cfg_add_file(s, "etc/boot-menu-wait", qemu_extra_params_fw, 2); - } - - /* insert splash file if user configurated */ - if (boot_splash_filename != NULL) { - filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, boot_splash_filename); - if (filename == NULL) { - error_report("failed to find file '%s'.", boot_splash_filename); - return; - } - - /* loading file data */ - file_data = read_splashfile(filename, &file_size, &file_type); - if (file_data == NULL) { - g_free(filename); - return; - } - if (boot_splash_filedata != NULL) { - g_free(boot_splash_filedata); - } - boot_splash_filedata = (uint8_t *)file_data; - boot_splash_filedata_size = file_size; - - /* insert data */ - if (file_type == JPG_FILE) { - fw_cfg_add_file(s, "bootsplash.jpg", - boot_splash_filedata, boot_splash_filedata_size); - } else { - fw_cfg_add_file(s, "bootsplash.bmp", - boot_splash_filedata, boot_splash_filedata_size); - } - g_free(filename); - } -} - -static void fw_cfg_reboot(FWCfgState *s) -{ - int reboot_timeout = -1; - char *p; - const char *temp; - - /* get user configuration */ - QemuOptsList *plist = qemu_find_opts("boot-opts"); - QemuOpts *opts = QTAILQ_FIRST(&plist->head); - if (opts != NULL) { - temp = qemu_opt_get(opts, "reboot-timeout"); - if (temp != NULL) { - p = (char *)temp; - reboot_timeout = strtol(p, (char **)&p, 10); - } - } - /* validate the input */ - if (reboot_timeout > 0xffff) { - error_report("reboot timeout is larger than 65535, force it to 65535."); - reboot_timeout = 0xffff; - } - fw_cfg_add_file(s, "etc/boot-fail-wait", g_memdup(&reboot_timeout, 4), 4); -} - -static void fw_cfg_write(FWCfgState *s, uint8_t value) -{ - int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL); - FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK]; - - trace_fw_cfg_write(s, value); - - if (s->cur_entry & FW_CFG_WRITE_CHANNEL && e->callback && - s->cur_offset < e->len) { - e->data[s->cur_offset++] = value; - if (s->cur_offset == e->len) { - e->callback(e->callback_opaque, e->data); - s->cur_offset = 0; - } - } -} - -static int fw_cfg_select(FWCfgState *s, uint16_t key) -{ - int ret; - - s->cur_offset = 0; - if ((key & FW_CFG_ENTRY_MASK) >= FW_CFG_MAX_ENTRY) { - s->cur_entry = FW_CFG_INVALID; - ret = 0; - } else { - s->cur_entry = key; - ret = 1; - } - - trace_fw_cfg_select(s, key, ret); - return ret; -} - -static uint8_t fw_cfg_read(FWCfgState *s) -{ - int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL); - FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK]; - uint8_t ret; - - if (s->cur_entry == FW_CFG_INVALID || !e->data || s->cur_offset >= e->len) - ret = 0; - else - ret = e->data[s->cur_offset++]; - - trace_fw_cfg_read(s, ret); - return ret; -} - -static uint64_t fw_cfg_data_mem_read(void *opaque, hwaddr addr, - unsigned size) -{ - return fw_cfg_read(opaque); -} - -static void fw_cfg_data_mem_write(void *opaque, hwaddr addr, - uint64_t value, unsigned size) -{ - fw_cfg_write(opaque, (uint8_t)value); -} - -static void fw_cfg_ctl_mem_write(void *opaque, hwaddr addr, - uint64_t value, unsigned size) -{ - fw_cfg_select(opaque, (uint16_t)value); -} - -static bool fw_cfg_ctl_mem_valid(void *opaque, hwaddr addr, - unsigned size, bool is_write) -{ - return is_write && size == 2; -} - -static uint64_t fw_cfg_comb_read(void *opaque, hwaddr addr, - unsigned size) -{ - return fw_cfg_read(opaque); -} - -static void fw_cfg_comb_write(void *opaque, hwaddr addr, - uint64_t value, unsigned size) -{ - switch (size) { - case 1: - fw_cfg_write(opaque, (uint8_t)value); - break; - case 2: - fw_cfg_select(opaque, (uint16_t)value); - break; - } -} - -static bool fw_cfg_comb_valid(void *opaque, hwaddr addr, - unsigned size, bool is_write) -{ - return (size == 1) || (is_write && size == 2); -} - -static const MemoryRegionOps fw_cfg_ctl_mem_ops = { - .write = fw_cfg_ctl_mem_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .valid.accepts = fw_cfg_ctl_mem_valid, -}; - -static const MemoryRegionOps fw_cfg_data_mem_ops = { - .read = fw_cfg_data_mem_read, - .write = fw_cfg_data_mem_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .valid = { - .min_access_size = 1, - .max_access_size = 1, - }, -}; - -static const MemoryRegionOps fw_cfg_comb_mem_ops = { - .read = fw_cfg_comb_read, - .write = fw_cfg_comb_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .valid.accepts = fw_cfg_comb_valid, -}; - -static void fw_cfg_reset(DeviceState *d) -{ - FWCfgState *s = DO_UPCAST(FWCfgState, busdev.qdev, d); - - fw_cfg_select(s, 0); -} - -/* Save restore 32 bit int as uint16_t - This is a Big hack, but it is how the old state did it. - Or we broke compatibility in the state, or we can't use struct tm - */ - -static int get_uint32_as_uint16(QEMUFile *f, void *pv, size_t size) -{ - uint32_t *v = pv; - *v = qemu_get_be16(f); - return 0; -} - -static void put_unused(QEMUFile *f, void *pv, size_t size) -{ - fprintf(stderr, "uint32_as_uint16 is only used for backward compatibility.\n"); - fprintf(stderr, "This functions shouldn't be called.\n"); -} - -static const VMStateInfo vmstate_hack_uint32_as_uint16 = { - .name = "int32_as_uint16", - .get = get_uint32_as_uint16, - .put = put_unused, -}; - -#define VMSTATE_UINT16_HACK(_f, _s, _t) \ - VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint32_as_uint16, uint32_t) - - -static bool is_version_1(void *opaque, int version_id) -{ - return version_id == 1; -} - -static const VMStateDescription vmstate_fw_cfg = { - .name = "fw_cfg", - .version_id = 2, - .minimum_version_id = 1, - .minimum_version_id_old = 1, - .fields = (VMStateField []) { - VMSTATE_UINT16(cur_entry, FWCfgState), - VMSTATE_UINT16_HACK(cur_offset, FWCfgState, is_version_1), - VMSTATE_UINT32_V(cur_offset, FWCfgState, 2), - VMSTATE_END_OF_LIST() - } -}; - -void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len) -{ - int arch = !!(key & FW_CFG_ARCH_LOCAL); - - key &= FW_CFG_ENTRY_MASK; - - assert(key < FW_CFG_MAX_ENTRY && len < UINT32_MAX); - - s->entries[arch][key].data = data; - s->entries[arch][key].len = (uint32_t)len; -} - -void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value) -{ - size_t sz = strlen(value) + 1; - - return fw_cfg_add_bytes(s, key, g_memdup(value, sz), sz); -} - -void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value) -{ - uint16_t *copy; - - copy = g_malloc(sizeof(value)); - *copy = cpu_to_le16(value); - fw_cfg_add_bytes(s, key, copy, sizeof(value)); -} - -void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value) -{ - uint32_t *copy; - - copy = g_malloc(sizeof(value)); - *copy = cpu_to_le32(value); - fw_cfg_add_bytes(s, key, copy, sizeof(value)); -} - -void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value) -{ - uint64_t *copy; - - copy = g_malloc(sizeof(value)); - *copy = cpu_to_le64(value); - fw_cfg_add_bytes(s, key, copy, sizeof(value)); -} - -void fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback, - void *callback_opaque, void *data, size_t len) -{ - int arch = !!(key & FW_CFG_ARCH_LOCAL); - - assert(key & FW_CFG_WRITE_CHANNEL); - - key &= FW_CFG_ENTRY_MASK; - - assert(key < FW_CFG_MAX_ENTRY && len <= UINT32_MAX); - - s->entries[arch][key].data = data; - s->entries[arch][key].len = (uint32_t)len; - s->entries[arch][key].callback_opaque = callback_opaque; - s->entries[arch][key].callback = callback; -} - -void fw_cfg_add_file(FWCfgState *s, const char *filename, - void *data, size_t len) -{ - int i, index; - size_t dsize; - - if (!s->files) { - dsize = sizeof(uint32_t) + sizeof(FWCfgFile) * FW_CFG_FILE_SLOTS; - s->files = g_malloc0(dsize); - fw_cfg_add_bytes(s, FW_CFG_FILE_DIR, s->files, dsize); - } - - index = be32_to_cpu(s->files->count); - assert(index < FW_CFG_FILE_SLOTS); - - fw_cfg_add_bytes(s, FW_CFG_FILE_FIRST + index, data, len); - - pstrcpy(s->files->f[index].name, sizeof(s->files->f[index].name), - filename); - for (i = 0; i < index; i++) { - if (strcmp(s->files->f[index].name, s->files->f[i].name) == 0) { - trace_fw_cfg_add_file_dupe(s, s->files->f[index].name); - return; - } - } - - s->files->f[index].size = cpu_to_be32(len); - s->files->f[index].select = cpu_to_be16(FW_CFG_FILE_FIRST + index); - trace_fw_cfg_add_file(s, index, s->files->f[index].name, len); - - s->files->count = cpu_to_be32(index+1); -} - -static void fw_cfg_machine_ready(struct Notifier *n, void *data) -{ - size_t len; - FWCfgState *s = container_of(n, FWCfgState, machine_ready); - char *bootindex = get_boot_devices_list(&len); - - fw_cfg_add_file(s, "bootorder", (uint8_t*)bootindex, len); -} - -FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port, - hwaddr ctl_addr, hwaddr data_addr) -{ - DeviceState *dev; - SysBusDevice *d; - FWCfgState *s; - - dev = qdev_create(NULL, "fw_cfg"); - qdev_prop_set_uint32(dev, "ctl_iobase", ctl_port); - qdev_prop_set_uint32(dev, "data_iobase", data_port); - qdev_init_nofail(dev); - d = SYS_BUS_DEVICE(dev); - - s = DO_UPCAST(FWCfgState, busdev.qdev, dev); - - if (ctl_addr) { - sysbus_mmio_map(d, 0, ctl_addr); - } - if (data_addr) { - sysbus_mmio_map(d, 1, data_addr); - } - fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (char *)"QEMU", 4); - fw_cfg_add_bytes(s, FW_CFG_UUID, qemu_uuid, 16); - fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)(display_type == DT_NOGRAPHIC)); - fw_cfg_add_i16(s, FW_CFG_NB_CPUS, (uint16_t)smp_cpus); - fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu); - fw_cfg_bootsplash(s); - fw_cfg_reboot(s); - - s->machine_ready.notify = fw_cfg_machine_ready; - qemu_add_machine_init_done_notifier(&s->machine_ready); - - return s; -} - -static int fw_cfg_init1(SysBusDevice *dev) -{ - FWCfgState *s = FROM_SYSBUS(FWCfgState, dev); - - memory_region_init_io(&s->ctl_iomem, &fw_cfg_ctl_mem_ops, s, - "fwcfg.ctl", FW_CFG_SIZE); - sysbus_init_mmio(dev, &s->ctl_iomem); - memory_region_init_io(&s->data_iomem, &fw_cfg_data_mem_ops, s, - "fwcfg.data", FW_CFG_DATA_SIZE); - sysbus_init_mmio(dev, &s->data_iomem); - /* In case ctl and data overlap: */ - memory_region_init_io(&s->comb_iomem, &fw_cfg_comb_mem_ops, s, - "fwcfg", FW_CFG_SIZE); - - if (s->ctl_iobase + 1 == s->data_iobase) { - sysbus_add_io(dev, s->ctl_iobase, &s->comb_iomem); - } else { - if (s->ctl_iobase) { - sysbus_add_io(dev, s->ctl_iobase, &s->ctl_iomem); - } - if (s->data_iobase) { - sysbus_add_io(dev, s->data_iobase, &s->data_iomem); - } - } - return 0; -} - -static Property fw_cfg_properties[] = { - DEFINE_PROP_HEX32("ctl_iobase", FWCfgState, ctl_iobase, -1), - DEFINE_PROP_HEX32("data_iobase", FWCfgState, data_iobase, -1), - DEFINE_PROP_END_OF_LIST(), -}; - -static void fw_cfg_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - - k->init = fw_cfg_init1; - dc->no_user = 1; - dc->reset = fw_cfg_reset; - dc->vmsd = &vmstate_fw_cfg; - dc->props = fw_cfg_properties; -} - -static const TypeInfo fw_cfg_info = { - .name = "fw_cfg", - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(FWCfgState), - .class_init = fw_cfg_class_init, -}; - -static void fw_cfg_register_types(void) -{ - type_register_static(&fw_cfg_info); -} - -type_init(fw_cfg_register_types) |