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KVM: MMU: add TDP support to the KVM MMU

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This patch contains the changes to the KVM MMU necessary for support of the
Nested Paging feature in AMD Barcelona and Phenom Processors.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Joerg Roedel
2008-02-07 13:47:44 +01:00
committed by Avi Kivity
parent cc4b6871e7
commit fb72d1674d
2 changed files with 82 additions and 3 deletions
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6
arch/x86/kvm/mmu.h
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@@ -3,6 +3,12 @@
#include <linux/kvm_host.h>
#ifdef CONFIG_X86_64
#define TDP_ROOT_LEVEL PT64_ROOT_LEVEL
#else
#define TDP_ROOT_LEVEL PT32E_ROOT_LEVEL
#endif
static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
{
if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))