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linux-next/arch/x86/platform/efi
David Vrabel 3565184ed0 x86: Increase precision of x86_platform.get/set_wallclock()
All the virtualized platforms (KVM, lguest and Xen) have persistent
wallclocks that have more than one second of precision.

read_persistent_wallclock() and update_persistent_wallclock() allow
for nanosecond precision but their implementation on x86 with
x86_platform.get/set_wallclock() only allows for one second precision.
This means guests may see a wallclock time that is off by up to 1
second.

Make set_wallclock() and get_wallclock() take a struct timespec
parameter (which allows for nanosecond precision) so KVM and Xen
guests may start with a more accurate wallclock time and a Xen dom0
can maintain a more accurate wallclock for guests.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2013-05-28 14:00:59 -07:00
..
efi_32.c x86, efi: Make efi_call_phys_{prelog,epilog} CONFIG_RELOCATABLE-aware 2011-12-09 16:39:11 -08:00
efi_64.c Include missing linux/slab.h inclusions 2013-04-29 15:42:01 -04:00
efi_stub_32.S x86: Move efi to platform 2010-10-27 14:30:01 +02:00
efi_stub_64.S x86: Move efi to platform 2010-10-27 14:30:01 +02:00
efi-bgrt.c x86/EFI: Properly init-annotate BGRT code 2013-01-24 17:12:18 +01:00
efi.c x86: Increase precision of x86_platform.get/set_wallclock() 2013-05-28 14:00:59 -07:00
Makefile efi: Fix the ACPI BGRT driver for images located in EFI boot services memory 2012-09-29 12:21:03 -07:00