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KVM: VMX: Enable EPT 1GB page support

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Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Sheng Yang
2010-01-05 19:02:29 +08:00
committed by Marcelo Tosatti
parent 17cc393596
commit 878403b788
3 changed files with 16 additions and 4 deletions
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8
arch/x86/kvm/mmu.c
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@@ -500,8 +500,7 @@ out:
static int mapping_level(struct kvm_vcpu *vcpu, gfn_t large_gfn)
{
struct kvm_memory_slot *slot;
int host_level;
int level = PT_PAGE_TABLE_LEVEL;
int host_level, level, max_level;
slot = gfn_to_memslot(vcpu->kvm, large_gfn);
if (slot && slot->dirty_bitmap)
@@ -512,7 +511,10 @@ static int mapping_level(struct kvm_vcpu *vcpu, gfn_t large_gfn)
if (host_level == PT_PAGE_TABLE_LEVEL)
return host_level;
for (level = PT_DIRECTORY_LEVEL; level <= host_level; ++level)
max_level = kvm_x86_ops->get_lpage_level() < host_level ?
kvm_x86_ops->get_lpage_level() : host_level;
for (level = PT_DIRECTORY_LEVEL; level <= max_level; ++level)
if (has_wrprotected_page(vcpu->kvm, large_gfn, level))
break;