KVM: SVM: Clean up rip handling in vmrun emulation

This patch changes the rip handling in the vmrun emulation
path from using next_rip to the generic kvm register access
functions.

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 0765534..fcbc491 100644 (file)
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2069,7 +2069,7 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
                return false;
        }
 
-       trace_kvm_nested_vmrun(svm->vmcb->save.rip - 3, vmcb_gpa,
+       trace_kvm_nested_vmrun(svm->vmcb->save.rip, vmcb_gpa,
                               nested_vmcb->save.rip,
                               nested_vmcb->control.int_ctl,
                               nested_vmcb->control.event_inj,
@@ -2098,7 +2098,7 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
        hsave->save.cr0    = kvm_read_cr0(&svm->vcpu);
        hsave->save.cr4    = svm->vcpu.arch.cr4;
        hsave->save.rflags = vmcb->save.rflags;
-       hsave->save.rip    = svm->next_rip;
+       hsave->save.rip    = kvm_rip_read(&svm->vcpu);
        hsave->save.rsp    = vmcb->save.rsp;
        hsave->save.rax    = vmcb->save.rax;
        if (npt_enabled)
@@ -2270,8 +2270,8 @@ static int vmrun_interception(struct vcpu_svm *svm)
        if (nested_svm_check_permissions(svm))
                return 1;
 
-       svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-       skip_emulated_instruction(&svm->vcpu);
+       /* Save rip after vmrun instruction */
+       kvm_rip_write(&svm->vcpu, kvm_rip_read(&svm->vcpu) + 3);
 
        if (!nested_svm_vmrun(svm))
                return 1;