[RESEND][PATCH]efi: initialize efi.runtime_version to makequery_variable_info/update_capsule workable

[Seiji Aguchi]

A value of efi.runtime_version is checked before calling
update_capsule()/query_variable_info() as follows.
But it isn't initialized anywhere.
<snip>
static efi_status_t virt_efi_query_variable_info(u32 attr,
                                                 u64 *storage_space,
                                                  u64 *remaining_space,
                                                 u64 *max_variable_size) {
        if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION)
                return EFI_UNSUPPORTED; 
<snip>

This patch initializes a value of efi.runtime_version at boot time.

Acked-by: Matthew Garrett <mjg@xxxxxxxxxx>
Signed-off-by: Seiji Aguchi <seiji.aguchi@xxxxxxx>
---
 arch/x86/platform/efi/efi.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 2dc29f5..4c82998 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -868,6 +868,7 @@ void __init efi_enter_virtual_mode(void)
 	 *
 	 * Call EFI services through wrapper functions.
 	 */
+	efi.runtime_version = efi_systab.fw_revision;
 	efi.get_time = virt_efi_get_time;
 	efi.set_time = virt_efi_set_time;
 	efi.get_wakeup_time = virt_efi_get_wakeup_time;
-- 
1.7.1
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