[PATCH 3.16 032/125] efi/arm64: Store Runtime Services revision

Greg Kroah-Hartman
2014-09-03T22:17:07Z

From: Semen Protsenko <semen.protsenko@linaro.org>

commit 6a7519e81321343165f89abb8b616df186d3e57a upstream.

"efi" global data structure contains "runtime_version" field which must
be assigned in order to use it later in Runtime Services virtual calls
(virt_efi_* functions).

Before this patch "runtime_version" was unassigned (0), so each
Runtime Service virtual call that checks revision would fail.

Signed-off-by: Semen Protsenko <semen.protsenko@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/arm64/kernel/efi.c | 2 ++
1 file changed, 2 insertions(+)

--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -464,6 +464,8 @@ static int __init arm64_enter_virtual_mo

set_bit(EFI_RUNTIME_SERVICES, &efi.flags);

+ efi.runtime_version = efi.systab->hdr.revision;
+
return 0;
}
early_initcall(arm64_enter_virtual_mode);