$ qemu-system-x86_64 -S -monitor stdio (qemu) info fw_cfg Type Perm Size Specific Order Info signature RO 4 QEMU id RO 4 0x00000003 uuid RO 16 00000000-0000-0000-0000-000000000000 ram_size RO 8 0x0000000008000000 nographic RO 2 0x0000 nb_cpus RO 2 0x0001 numa RO 16 boot_menu RO 2 0x0000 max_cpus RO 2 0x0001 file_dir RO 2052 file (id 1) RO 36 160 etc/acpi/rsdp file (id 2) RO 131072 130 etc/acpi/tables file (id 3) RO 4 15 etc/boot-fail-wait file (id 4) RO 20 40 etc/e820 file (id 5) RO 31 30 etc/smbios/smbios-anchor file (id 6) RO 320 20 etc/smbios/smbios-tables file (id 7) RO 6 90 etc/system-states file (id 8) RO 4096 140 etc/table-loader file (id 10) RO 9216 55 genroms/kvmvapic.bin uuid RO 4 (arch spec) 01000000-0000-0000-0000-000000000000 ram_size RO 324 (arch spec) nographic RO 121 (arch spec) (qemu)
Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com> --- hmp-commands-info.hx | 14 +++++ hw/nvram/fw_cfg.c | 115 ++++++++++++++++++++++++++++++++++++++ include/hw/nvram/fw_cfg.h | 2 + 3 files changed, 131 insertions(+) diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx index cbee8b944d..9e86dceeb4 100644 --- a/hmp-commands-info.hx +++ b/hmp-commands-info.hx @@ -916,6 +916,20 @@ STEXI @item info sev @findex info sev Show SEV information. +ETEXI + + { + .name = "fw_cfg", + .args_type = "", + .params = "", + .help = "Display the table of the fw_cfg entries registered", + .cmd = hmp_info_fw_cfg, + }, + +STEXI +@item info fw_cfg +@findex info fw_cfg +Show roms. ETEXI STEXI diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c index 582653f07e..50525ec1dd 100644 --- a/hw/nvram/fw_cfg.c +++ b/hw/nvram/fw_cfg.c @@ -36,6 +36,7 @@ #include "qemu/config-file.h" #include "qemu/cutils.h" #include "qapi/error.h" +#include "monitor/monitor.h" #define FW_CFG_FILE_SLOTS_DFLT 0x20 @@ -1164,3 +1165,117 @@ static void fw_cfg_register_types(void) } type_init(fw_cfg_register_types) + +static const char *fw_cfg_wellknown_entries[0x20] = { + [FW_CFG_SIGNATURE] = "signature", + [FW_CFG_ID] = "id", + [FW_CFG_UUID] = "uuid", + [FW_CFG_RAM_SIZE] = "ram_size", + [FW_CFG_NOGRAPHIC] = "nographic", + [FW_CFG_NB_CPUS] = "nb_cpus", + [FW_CFG_MACHINE_ID] = "machine_id", + [FW_CFG_KERNEL_ADDR] = "kernel_addr", + [FW_CFG_KERNEL_SIZE] = "kernel_size", + [FW_CFG_KERNEL_CMDLINE] = "kernel_cmdline", + [FW_CFG_INITRD_ADDR] = "initrd_addr", + [FW_CFG_INITRD_SIZE] = "initdr_size", + [FW_CFG_BOOT_DEVICE] = "boot_device", + [FW_CFG_NUMA] = "numa", + [FW_CFG_BOOT_MENU] = "boot_menu", + [FW_CFG_MAX_CPUS] = "max_cpus", + [FW_CFG_KERNEL_ENTRY] = "kernel_entry", + [FW_CFG_KERNEL_DATA] = "kernel_data", + [FW_CFG_INITRD_DATA] = "initrd_data", + [FW_CFG_CMDLINE_ADDR] = "cmdline_addr", + [FW_CFG_CMDLINE_SIZE] = "cmdline_size", + [FW_CFG_CMDLINE_DATA] = "cmdline_data", + [FW_CFG_SETUP_ADDR] = "setup_addr", + [FW_CFG_SETUP_SIZE] = "setup_size", + [FW_CFG_SETUP_DATA] = "setup_data", + [FW_CFG_FILE_DIR] = "file_dir", +}; + +void hmp_info_fw_cfg(Monitor *mon, const QDict *qdict) +{ + FWCfgState *s = fw_cfg_find(); + int arch, key; + + monitor_printf(mon, "%12s %5s %7s %9s %6s %-24s\n", + "Type", "Perm", "Size", "Specific", "Order", "Info"); + for (arch = 0; arch < ARRAY_SIZE(s->entries); ++arch) { + for (key = 0; key < fw_cfg_max_entry(s); ++key) { + FWCfgEntry *e = &s->entries[arch][key]; + const char *perm = e->allow_write ? "RW" : "RO"; + const char *arch_spec = arch ? "arch_spec" : ""; + char *type, *info = NULL; + + if (!e->len) { + continue; + } + if (key >= FW_CFG_FILE_FIRST) { + int id = key - FW_CFG_FILE_FIRST; + const char *path = s->files->f[id].name; + + type = g_strdup_printf("file (id %d)", id); + monitor_printf(mon, "%12s %5s %7d %10s %5d %-24s\n", + type, perm, e->len, arch_spec, + get_fw_cfg_order(s, path), path); + g_free(type); + continue; + } + type = g_strdup(fw_cfg_wellknown_entries[key]); + if (!type) { + type = g_strdup_printf("entry_%d", key); + } + + switch (key) { + case FW_CFG_SIGNATURE: + info = g_strndup((const gchar *)e->data, e->len); + break; + case FW_CFG_UUID: + info = qemu_uuid_unparse_strdup((const QemuUUID *)e->data); + break; + case FW_CFG_ID: + case FW_CFG_NOGRAPHIC: + case FW_CFG_NB_CPUS: + case FW_CFG_BOOT_MENU: + case FW_CFG_MAX_CPUS: + case FW_CFG_RAM_SIZE: + case FW_CFG_KERNEL_ADDR: + case FW_CFG_KERNEL_SIZE: + case FW_CFG_KERNEL_CMDLINE: + case FW_CFG_KERNEL_ENTRY: + case FW_CFG_KERNEL_DATA: + case FW_CFG_INITRD_ADDR: + case FW_CFG_INITRD_SIZE: + case FW_CFG_INITRD_DATA: + case FW_CFG_CMDLINE_ADDR: + case FW_CFG_CMDLINE_SIZE: + case FW_CFG_CMDLINE_DATA: + case FW_CFG_SETUP_ADDR: + case FW_CFG_SETUP_SIZE: + case FW_CFG_SETUP_DATA: + switch (e->len) { + case 2: + info = g_strdup_printf("0x%04x", lduw_le_p(e->data)); + break; + case 4: + info = g_strdup_printf("0x%08x", ldl_le_p(e->data)); + break; + case 8: + info = g_strdup_printf("0x%016" PRIx64, ldq_le_p(e->data)); + break; + default: + break; + } + break; + default: + break; + } + monitor_printf(mon, "%12s %5s %7d %10s %5s %-24s\n", + type, perm, e->len, arch_spec, "", info ? info : ""); + g_free(type); + g_free(info); + } + } +} diff --git a/include/hw/nvram/fw_cfg.h b/include/hw/nvram/fw_cfg.h index f5a6895a74..28630b2f26 100644 --- a/include/hw/nvram/fw_cfg.h +++ b/include/hw/nvram/fw_cfg.h @@ -226,4 +226,6 @@ FWCfgState *fw_cfg_init_mem_wide(hwaddr ctl_addr, FWCfgState *fw_cfg_find(void); bool fw_cfg_dma_enabled(void *opaque); +void hmp_info_fw_cfg(Monitor *mon, const QDict *qdict); + #endif -- 2.17.2