| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.16 032/125] efi/arm64: Store Runtime Services revision | Date | Wed, 3 Sep 2014 15:06:29 -0700 |
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3.16-stable review patch. If anyone has any objections, please let me know.
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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);
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