KVM: SVM: Use get_host_vmcb function in svm_get_msr for TSC

This patch replaces the open-coded vmcb-selection for the
TSC calculation with the new get_host_vmcb helper function
introduced in this patchset.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index cde5392..5038786 100644 (file)
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2630,14 +2630,9 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
 
        switch (ecx) {
        case MSR_IA32_TSC: {
-               u64 tsc_offset;
+               struct vmcb *vmcb = get_host_vmcb(svm);
 
-               if (is_guest_mode(vcpu))
-                       tsc_offset = svm->nested.hsave->control.tsc_offset;
-               else
-                       tsc_offset = svm->vmcb->control.tsc_offset;
-
-               *data = tsc_offset + native_read_tsc();
+               *data = vmcb->control.tsc_offset + native_read_tsc();
                break;
        }
        case MSR_STAR: