evie/android_kernel_oneplus_msm8998
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KVM: MMU: remove rmap before clear spte

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Remove rmap before clear spte otherwise it will trigger BUG_ON() in
some functions such as rmap_write_protect().

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Xiao Guangrong 2010-05-13 10:07:00 +08:00 • committed by Avi Kivity
parent e8ad9a7074
commit 6d74229f01
1 changed files with 1 additions and 0 deletions
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arch/x86/kvm/mmu.c
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@ -1813,6 +1813,7 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
if (level > PT_PAGE_TABLE_LEVEL &&
has_wrprotected_page(vcpu->kvm, gfn, level)) {
ret = 1;
rmap_remove(vcpu->kvm, sptep);
spte = shadow_trap_nonpresent_pte;
goto set_pte;
}