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KVM: MMU: Only indicate a fetch fault in page fault error code if nx is enabled

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Bit 4 of the page fault error code is set only if EFER.NX is set.

Reviewed-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity
2010-07-06 15:40:18 +03:00
parent 5d55f299f9
commit b0eeec29fe
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/paging_tmpl.h
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@@ -245,7 +245,7 @@ static int FNAME(walk_addr)(struct guest_walker *walker,
walker->error_code |= PFERR_WRITE_MASK;
if (user_fault)
walker->error_code |= PFERR_USER_MASK;
if (fetch_fault)
if (fetch_fault && is_nx(vcpu))
walker->error_code |= PFERR_FETCH_MASK;
if (rsvd_fault)
walker->error_code |= PFERR_RSVD_MASK;