Export fw_vendor, runtime and config tables physical addresses to /sys/firmware/efi/systab becaue kexec kernel will need them. >From EFI spec these 3 variables will be updated to virtual address after entering virtual mode. But kernel startup code will need the physical address. Signed-off-by: Dave Young --- arch/x86/platform/efi/efi.c | 4 ++++ drivers/firmware/efi/efi.c | 9 +++++++++ include/linux/efi.h | 3 +++ 3 files changed, 16 insertions(+) --- linux-2.6.orig/drivers/firmware/efi/efi.c +++ linux-2.6/drivers/firmware/efi/efi.c @@ -32,6 +32,9 @@ struct efi __read_mostly efi = { .hcdp = EFI_INVALID_TABLE_ADDR, .uga = EFI_INVALID_TABLE_ADDR, .uv_systab = EFI_INVALID_TABLE_ADDR, + .fw_vendor = EFI_INVALID_TABLE_ADDR, + .runtime = EFI_INVALID_TABLE_ADDR, + .config_tables = EFI_INVALID_TABLE_ADDR, }; EXPORT_SYMBOL(efi); @@ -64,6 +67,12 @@ static ssize_t systab_show(struct kobjec str += sprintf(str, "BOOTINFO=0x%lx\n", efi.boot_info); if (efi.uga != EFI_INVALID_TABLE_ADDR) str += sprintf(str, "UGA=0x%lx\n", efi.uga); + if (efi.fw_vendor != EFI_INVALID_TABLE_ADDR) + str += sprintf(str, "fw_vendor=0x%lx\n", efi.fw_vendor); + if (efi.runtime != EFI_INVALID_TABLE_ADDR) + str += sprintf(str, "runtime=0x%lx\n", efi.runtime); + if (efi.config_tables != EFI_INVALID_TABLE_ADDR) + str += sprintf(str, "config_tables=0x%lx\n", efi.config_tables); return str - buf; } --- linux-2.6.orig/include/linux/efi.h +++ linux-2.6/include/linux/efi.h @@ -556,6 +556,9 @@ extern struct efi { unsigned long hcdp; /* HCDP table */ unsigned long uga; /* UGA table */ unsigned long uv_systab; /* UV system table */ + unsigned long fw_vendor; + unsigned long runtime; + unsigned long config_tables; efi_get_time_t *get_time; efi_set_time_t *set_time; efi_get_wakeup_time_t *get_wakeup_time; --- linux-2.6.orig/arch/x86/platform/efi/efi.c +++ linux-2.6/arch/x86/platform/efi/efi.c @@ -653,6 +653,10 @@ void __init efi_init(void) set_bit(EFI_SYSTEM_TABLES, &x86_efi_facility); + efi.fw_vendor = (unsigned long)efi.systab->fw_vendor; + efi.runtime = (unsigned long)efi.systab->runtime; + efi.config_tables = (unsigned long)efi.systab->tables; + /* * Show what we know for posterity */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/