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Subject[PATCH] KVM: MMU: initialize sptes early
Date
Otherwise, the following kvm_sync_pages() will see invalid sptes in a new
shadow page.

Signed-off-by: Zhao Jin <cronozhj@gmail.com>
---
arch/x86/kvm/mmu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8e8da79..d7e1694 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1692,6 +1692,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
return sp;
sp->gfn = gfn;
sp->role = role;
+ init_shadow_page_table(sp);
hlist_add_head(&sp->hash_link,
&vcpu->kvm->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)]);
if (!direct) {
@@ -1702,7 +1703,6 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,

account_shadowed(vcpu->kvm, gfn);
}
- init_shadow_page_table(sp);
trace_kvm_mmu_get_page(sp, true);
return sp;
}
--
1.7.5.4


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