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| author |   Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> | 2010-05-13 10:07:00 +0800 |
|---|---|---|
| committer |   Avi Kivity <avi@redhat.com> | 2010-08-01 10:35:46 +0300 |
| commit | 6d74229f013ed8e4a00d74cfa7a3fa6a2315c467 (patch) | |
| tree | 416b2a3f261a90b6bc0d3f19c10b31b5f14963c8 /arch | |
| parent | KVM: MMU: use proper cache object freeing function (diff) | |
| download | linux-dev-6d74229f013ed8e4a00d74cfa7a3fa6a2315c467.tar.xz linux-dev-6d74229f013ed8e4a00d74cfa7a3fa6a2315c467.zip | |
KVM: MMU: remove rmap before clear spte
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index bb48b0ca5f8c..5c9d6df0113e 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -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; } |