| commit | f01487119dda3d9f58c9729c7361ecc50a61c188 | [log] [tgz] |
|---|---|---|
| author | Andreas Herrmann <herrmann.der.user@googlemail.com> | Tue Apr 27 12:13:48 2010 +0200 |
| committer | H. Peter Anvin <hpa@linux.intel.com> | Thu May 13 16:21:20 2010 -0700 |
| tree | bbd1d01429950207716337fbbd9e9f356560258c | |
| parent | b0c4d952a158a6a2547672cf4fc9d55e415410de [diff] |
x86, amd: Check X86_FEATURE_OSVW bit before accessing OSVW MSRs If host CPU is exposed to a guest the OSVW MSRs are not guaranteed to be present and a GP fault occurs. Thus checking the feature flag is essential. Cc: <stable@kernel.org> # .32.x .33.x Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20100427101348.GC4489@alberich.amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>