From: Joerg Roedel <[email protected]>

This patch introduces a new pointer which always points to
the VMCB used for running the L1 guest.

Signed-off-by: Joerg Roedel <[email protected]>
---
 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


--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to