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Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/mmu.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 668ae5916de9..63107049249d 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2802,9 +2802,9 @@ static bool page_fault_can_be_fast(u32 error_code)
}
static bool
-fast_pf_fix_direct_spte(struct kvm_vcpu *vcpu, u64 *sptep, u64 spte)
+fast_pf_fix_direct_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
+ u64 *sptep, u64 spte)
{
- struct kvm_mmu_page *sp = page_header(__pa(sptep));
gfn_t gfn;
WARN_ON(!sp->role.direct);
@@ -2830,6 +2830,7 @@ static bool fast_page_fault(struct kvm_vcpu *vcpu, gva_t gva, int level,
u32 error_code)
{
struct kvm_shadow_walk_iterator iterator;
+ struct kvm_mmu_page *sp;
bool ret = false;
u64 spte = 0ull;
@@ -2853,7 +2854,8 @@ static bool fast_page_fault(struct kvm_vcpu *vcpu, gva_t gva, int level,
goto exit;
}
- if (!is_last_spte(spte, level))
+ sp = page_header(__pa(iterator.sptep));
+ if (!is_last_spte(spte, sp->role.level))
goto exit;
/*
@@ -2879,7 +2881,7 @@ static bool fast_page_fault(struct kvm_vcpu *vcpu, gva_t gva, int level,
* the gfn is not stable for indirect shadow page.
* See Documentation/virtual/kvm/locking.txt to get more detail.
*/
- ret = fast_pf_fix_direct_spte(vcpu, iterator.sptep, spte);
+ ret = fast_pf_fix_direct_spte(vcpu, sp, iterator.sptep, spte);
exit:
trace_fast_page_fault(vcpu, gva, error_code, iterator.sptep,
spte, ret);