From 3438253926822a6bf8487b4f7d82f26a2c0b2388 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Sat, 25 Apr 2009 12:43:21 +0200 Subject: [PATCH] KVM: MMU: Fix auditing code Fix build breakage of hpa lookup in audit_mappings_page. Moreover, make this function robust against shadow_notrap_nonpresent_pte entries. Signed-off-by: Jan Kiszka Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index b39ec62..3592aea 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3029,11 +3029,13 @@ static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte, " in nonleaf level: levels %d gva %lx" " level %d pte %llx\n", audit_msg, vcpu->arch.mmu.root_level, va, level, ent); - - audit_mappings_page(vcpu, ent, va, level - 1); + else + audit_mappings_page(vcpu, ent, va, level - 1); } else { gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, va); - hpa_t hpa = (hpa_t)gpa_to_pfn(vcpu, gpa) << PAGE_SHIFT; + gfn_t gfn = gpa >> PAGE_SHIFT; + pfn_t pfn = gfn_to_pfn(vcpu->kvm, gfn); + hpa_t hpa = (hpa_t)pfn << PAGE_SHIFT; if (is_shadow_present_pte(ent) && (ent & PT64_BASE_ADDR_MASK) != hpa) -- 1.8.2.3