From: Joerg Roedel <joro@xxxxxxxxxx>
This patch introduces a new pointer which always points to
the VMCB used for running the L1 guest.
Signed-off-by: Joerg Roedel <joro@xxxxxxxxxx>
---
arch/x86/kvm/svm.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 475d1c9..3d5990f 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -113,7 +113,9 @@ static u32 msrpm_offsets[MSRPM_OFFSETS] __read_mostly;
struct vcpu_svm {
struct kvm_vcpu vcpu;
struct vmcb *vmcb;
+ struct vmcb *host_vmcb;
unsigned long vmcb_pa;
+ unsigned long host_vmcb_pa;
struct svm_cpu_data *svm_data;
uint64_t asid_generation;
uint64_t sysenter_esp;
@@ -1171,9 +1173,11 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
svm->nested.msrpm = page_address(nested_msrpm_pages);
svm_vcpu_init_msrpm(svm->nested.msrpm);
- svm->vmcb = page_address(page);
+ svm->host_vmcb = page_address(page);
+ svm->vmcb = svm->host_vmcb;
clear_page(svm->vmcb);
svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT;
+ svm->host_vmcb_pa = page_to_pfn(page) << PAGE_SHIFT;
svm->asid_generation = 0;
init_vmcb(svm);
kvm_write_tsc(&svm->vcpu, 0);
--
1.7.4.1
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