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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2009-06-10 19:27:08 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-09-10 09:32:54 +0400 |
| commit | 2920d7285740582d6101f32c37d8d54f82531e1e (patch) | |
| tree | 8e35545c646278dddf1edf180cd6f0b8723bfcca /arch/x86/kvm/mmu.c | |
| parent | 2aaf65e8c40468b198b709a765abe311f91c1a1d (diff) | |
| download | linux-2920d7285740582d6101f32c37d8d54f82531e1e.tar.xz | |
KVM: MMU audit: largepage handling
Make the audit code aware of largepages.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 50fe8541ed39..780ce3fe7911 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3058,12 +3058,11 @@ static void __mmu_spte_walk(struct kvm *kvm, struct kvm_mmu_page *sp, u64 ent = sp->spt[i]; if (is_shadow_present_pte(ent)) { - if (sp->role.level > 1 && !is_large_pte(ent)) { + if (!is_last_spte(ent, sp->role.level)) { struct kvm_mmu_page *child; child = page_header(ent & PT64_BASE_ADDR_MASK); __mmu_spte_walk(kvm, child, fn); - } - if (sp->role.level == 1) + } else fn(kvm, sp, &sp->spt[i]); } } @@ -3108,10 +3107,9 @@ static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte, continue; va = canonicalize(va); - if (level > 1) { - if (is_shadow_present_pte(ent)) - audit_mappings_page(vcpu, ent, va, level - 1); - } else { + if (is_shadow_present_pte(ent) && !is_last_spte(ent, level)) + audit_mappings_page(vcpu, ent, va, level - 1); + else { gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, va); gfn_t gfn = gpa >> PAGE_SHIFT; pfn_t pfn = gfn_to_pfn(vcpu->kvm, gfn); @@ -3208,7 +3206,8 @@ void inspect_spte_has_rmap(struct kvm *kvm, struct kvm_mmu_page *sp, u64 *sptep) return; } - rmapp = gfn_to_rmap(kvm, rev_sp->gfns[sptep - rev_sp->spt], 0); + rmapp = gfn_to_rmap(kvm, rev_sp->gfns[sptep - rev_sp->spt], + is_large_pte(*sptep)); if (!*rmapp) { if (!printk_ratelimit()) return; |