diff options
| author | Avi Kivity <avi@redhat.com> | 2010-06-21 11:44:20 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-08-01 10:47:00 +0300 |
| commit | a1f4d39500ad8ed61825eff061debff42386ab5b (patch) | |
| tree | 58b72188b1356329e78951773f4be41e66b11d21 /arch/x86/kvm/paging_tmpl.h | |
| parent | fc34531db3cf8c422f2ff7cf4ef507a3ca672cd2 (diff) | |
KVM: Remove memory alias support
As advertised in feature-removal-schedule.txt. Equivalent support is provided
by overlapping memory regions.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/paging_tmpl.h')
| -rw-r--r-- | arch/x86/kvm/paging_tmpl.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 863920f649f..a21a86ef9e2 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -576,7 +576,6 @@ static void FNAME(prefetch_page)(struct kvm_vcpu *vcpu, * Using the cached information from sp->gfns is safe because: * - The spte has a reference to the struct page, so the pfn for a given gfn * can't change unless all sptes pointing to it are nuked first. - * - Alias changes zap the entire shadow cache. */ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, bool clear_unsync) @@ -611,7 +610,7 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, return -EINVAL; gfn = gpte_to_gfn(gpte); - if (unalias_gfn(vcpu->kvm, gfn) != sp->gfns[i] || + if (gfn != sp->gfns[i] || !is_present_gpte(gpte) || !(gpte & PT_ACCESSED_MASK)) { u64 nonpresent; |