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efi: initialize efi.runtime_version to make query_variable_info/update_capsule workable 

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.

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
This commit is contained in:
Seiji Aguchi 2012-07-24 13:27:23 +00:00 committed by Matt Fleming
parent 9dead5bbb8
commit d6cf86d8f2
1 changed files with 1 additions and 0 deletions
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1
arch/x86/platform/efi/efi.c
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@ -890,6 +890,7 @@ 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;