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| author | Joerg Roedel <joerg.roedel@amd.com> | 2010-09-10 17:30:42 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:52:31 +0200 |
| commit | 5777ed340d89cdc6c76a5c552337a3861b40a806 (patch) | |
| tree | 7f3c3a8da975dadef7e00fc92c39bd3ab5862a60 /arch/x86/kvm/mmu.c | |
| parent | 1c97f0a04c74196880f22a563134c8f6d0b9d752 (diff) | |
| download | talos-op-linux-5777ed340d89cdc6c76a5c552337a3861b40a806.tar.gz talos-op-linux-5777ed340d89cdc6c76a5c552337a3861b40a806.zip | |
KVM: MMU: Introduce get_cr3 function pointer
This function pointer in the MMU context is required to
implement Nested Nested Paging.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index a55f8d5a7985..e4a7de4c8c77 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2365,7 +2365,7 @@ static int mmu_alloc_roots(struct kvm_vcpu *vcpu) int direct = 0; u64 pdptr; - root_gfn = vcpu->arch.cr3 >> PAGE_SHIFT; + root_gfn = vcpu->arch.mmu.get_cr3(vcpu) >> PAGE_SHIFT; if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) { hpa_t root = vcpu->arch.mmu.root_hpa; @@ -2562,6 +2562,11 @@ static void paging_new_cr3(struct kvm_vcpu *vcpu) mmu_free_roots(vcpu); } +static unsigned long get_cr3(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.cr3; +} + static void inject_page_fault(struct kvm_vcpu *vcpu, u64 addr, u32 err_code) @@ -2715,6 +2720,7 @@ static int init_kvm_tdp_mmu(struct kvm_vcpu *vcpu) context->root_hpa = INVALID_PAGE; context->direct_map = true; context->set_cr3 = kvm_x86_ops->set_tdp_cr3; + context->get_cr3 = get_cr3; if (!is_paging(vcpu)) { context->gva_to_gpa = nonpaging_gva_to_gpa; @@ -2755,6 +2761,7 @@ static int init_kvm_softmmu(struct kvm_vcpu *vcpu) vcpu->arch.mmu.base_role.cr4_pae = !!is_pae(vcpu); vcpu->arch.mmu.base_role.cr0_wp = is_write_protection(vcpu); vcpu->arch.mmu.set_cr3 = kvm_x86_ops->set_cr3; + vcpu->arch.mmu.get_cr3 = get_cr3; return r; } |
