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KVM: SVM: Use svm_get_lbr_vmcb() helper to handle writes to DEBUGCTL

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Use the recently introduced svm_get_lbr_vmcb() instead an open coded
equivalent to retrieve the target VMCB when emulating writes to
MSR_IA32_DEBUGCTLMSR.

No functional change intended.

Link: https://lore.kernel.org/r/20230607203519.1570167-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson
2023-06-07 13:35:19 -07:00
parent 41dfb5f13e
commit a85cd52d72
1 changed files with 1 additions and 6 deletions
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7
arch/x86/kvm/svm/svm.c
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@@ -3052,13 +3052,8 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
if (data & DEBUGCTL_RESERVED_BITS)
return 1;
if (svm->vmcb->control.virt_ext & LBR_CTL_ENABLE_MASK)
svm->vmcb->save.dbgctl = data;
else
svm->vmcb01.ptr->save.dbgctl = data;
svm_get_lbr_vmcb(svm)->save.dbgctl = data;
svm_update_lbrv(vcpu);
break;
case MSR_VM_HSAVE_PA:
/*