x86, efi: Don't use (U)EFI time services on 32 bit
authorMatthew Garrett <matthew.garrett@nebula.com>
Fri, 29 Nov 2013 19:44:43 +0000 (14:44 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 20 Dec 2013 15:45:10 +0000 (07:45 -0800)
commiteea588a497c56a7ed72e00a71829118f465efe39
tree4c05559370d0f115363ba41fa2c694c04b560ff8
parentd7b2643fc9a596037084830b157a559d8f870169
x86, efi: Don't use (U)EFI time services on 32 bit

commit 04bf9ba720fcc4fa313fa122b799ae0989b6cd50 upstream.

UEFI time services are often broken once we're in virtual mode. We were
already refusing to use them on 64-bit systems, but it turns out that
they're also broken on some 32-bit firmware, including the Dell Venue.
Disable them for now, we can revisit once we have the 1:1 mappings code
incorporated.

Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Link: http://lkml.kernel.org/r/1385754283-2464-1-git-send-email-matthew.garrett@nebula.com
Cc: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/platform/efi/efi.c