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KVM: MMU: set access bit for direct mapping

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Set access bit while setup up direct page table if it's nonpaing or npt enabled,
it's good for CPU's speculate access

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Xiao Guangrong 2010-09-27 18:05:00 +08:00 committed by Avi Kivity
parent 20bd40dc64
commit 33f91edb92
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kvm/mmu.c
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@ -2240,7 +2240,8 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write,
__set_spte(iterator.sptep, __set_spte(iterator.sptep,
__pa(sp->spt) __pa(sp->spt)
| PT_PRESENT_MASK | PT_WRITABLE_MASK | PT_PRESENT_MASK | PT_WRITABLE_MASK
| shadow_user_mask | shadow_x_mask); | shadow_user_mask | shadow_x_mask
| shadow_accessed_mask);
} }
} }
return pt_write; return pt_write;