KVM: MMU: Remove #ifdef CONFIG_X86_64 to support 4 level EPT
Sheng Yang [Fri, 25 Apr 2008 13:44:42 +0000 (21:44 +0800)]
Currently EPT level is 4 for both pae and x86_64. The patch remove the #ifdef
for alloc root_hpa and free root_hpa to support EPT.

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

arch/x86/kvm/mmu.c

index c28a36b..3dbedf1 100644 (file)
@@ -1233,7 +1233,6 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
        if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
                return;
        spin_lock(&vcpu->kvm->mmu_lock);
-#ifdef CONFIG_X86_64
        if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
                hpa_t root = vcpu->arch.mmu.root_hpa;
 
@@ -1245,7 +1244,6 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
                spin_unlock(&vcpu->kvm->mmu_lock);
                return;
        }
-#endif
        for (i = 0; i < 4; ++i) {
                hpa_t root = vcpu->arch.mmu.pae_root[i];
 
@@ -1271,7 +1269,6 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
 
        root_gfn = vcpu->arch.cr3 >> PAGE_SHIFT;
 
-#ifdef CONFIG_X86_64
        if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
                hpa_t root = vcpu->arch.mmu.root_hpa;
 
@@ -1286,7 +1283,6 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
                vcpu->arch.mmu.root_hpa = root;
                return;
        }
-#endif
        metaphysical = !is_paging(vcpu);
        if (tdp_enabled)
                metaphysical = 1;