diff options
| author | Avi Kivity <avi@qumranet.com> | 2007-01-06 01:36:41 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-06 08:55:24 +0100 |
| commit | aef3d3fe1314f2a130f5ccc7114df20865ba784f (patch) | |
| tree | 7814192c1b4b8b438885dd59a4fa6c31cab71ede /drivers/kvm/paging_tmpl.h | |
| parent | [PATCH] KVM: MMU: Use the guest pdptrs instead of mapping cr3 in pae mode (diff) | |
| download | linux-aef3d3fe1314f2a130f5ccc7114df20865ba784f.tar.xz linux-aef3d3fe1314f2a130f5ccc7114df20865ba784f.zip | |
[PATCH] KVM: MMU: Make the shadow page tables also special-case pae
Signed-off-by: Avi Kivity <avi@qumranet.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/kvm/paging_tmpl.h')
| -rw-r--r-- | drivers/kvm/paging_tmpl.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h index 3ade9445ab23..7af49ae80e5a 100644 --- a/drivers/kvm/paging_tmpl.h +++ b/drivers/kvm/paging_tmpl.h @@ -170,6 +170,11 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, shadow_addr = vcpu->mmu.root_hpa; level = vcpu->mmu.shadow_root_level; + if (level == PT32E_ROOT_LEVEL) { + shadow_addr = vcpu->mmu.pae_root[(addr >> 30) & 3]; + shadow_addr &= PT64_BASE_ADDR_MASK; + --level; + } for (; ; level--) { u32 index = SHADOW_PT_INDEX(addr, level); @@ -202,10 +207,8 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, shadow_addr = kvm_mmu_alloc_page(vcpu, shadow_ent); if (!VALID_PAGE(shadow_addr)) return ERR_PTR(-ENOMEM); - shadow_pte = shadow_addr | PT_PRESENT_MASK; - if (vcpu->mmu.root_level > 3 || level != 3) - shadow_pte |= PT_ACCESSED_MASK - | PT_WRITABLE_MASK | PT_USER_MASK; + shadow_pte = shadow_addr | PT_PRESENT_MASK | PT_ACCESSED_MASK + | PT_WRITABLE_MASK | PT_USER_MASK; *shadow_ent = shadow_pte; prev_shadow_ent = shadow_ent; } |