| From d6cf86d8f23253225fe2a763d627ecf7dfee9dae Mon Sep 17 00:00:00 2001 |
| From: Seiji Aguchi <seiji.aguchi@hds.com> |
| Date: Tue, 24 Jul 2012 13:27:23 +0000 |
| Subject: efi: initialize efi.runtime_version to make query_variable_info/update_capsule workable |
| |
| From: Seiji Aguchi <seiji.aguchi@hds.com> |
| |
| commit d6cf86d8f23253225fe2a763d627ecf7dfee9dae upstream. |
| |
| 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> |
| Signed-off-by: Ivan Hu <ivan.hu@canonical.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| arch/x86/platform/efi/efi.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/arch/x86/platform/efi/efi.c |
| +++ b/arch/x86/platform/efi/efi.c |
| @@ -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; |
