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Subject[PATCH 04/10] KVM: VMX: Convert local exit_reason to u16 in nested_vmx_exit_reflected()
Date
Store only the basic exit reason in the local "exit_reason" variable in
nested_vmx_exit_reflected(). Except for tracing, all references to
exit_reason are expecting to encounter only the basic exit reason.

Opportunistically align the params to nested_vmx_exit_handled_msr().

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
arch/x86/kvm/vmx/nested.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index cb05bcbbfc4e..1848ca0116c0 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -5374,7 +5374,7 @@ static bool nested_vmx_exit_handled_io(struct kvm_vcpu *vcpu,
* MSR bitmap. This may be the case even when L0 doesn't use MSR bitmaps.
*/
static bool nested_vmx_exit_handled_msr(struct kvm_vcpu *vcpu,
- struct vmcs12 *vmcs12, u32 exit_reason)
+ struct vmcs12 *vmcs12, u16 exit_reason)
{
u32 msr_index = kvm_rcx_read(vcpu);
gpa_t bitmap;
@@ -5523,7 +5523,7 @@ bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu)
u32 intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
struct vcpu_vmx *vmx = to_vmx(vcpu);
struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
- u32 exit_reason = vmx->exit_reason;
+ u16 exit_reason;

if (vmx->nested.nested_run_pending)
return false;
@@ -5548,13 +5548,15 @@ bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu)
*/
nested_mark_vmcs12_pages_dirty(vcpu);

- trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason,
+ trace_kvm_nested_vmexit(kvm_rip_read(vcpu), vmx->exit_reason,
vmcs_readl(EXIT_QUALIFICATION),
vmx->idt_vectoring_info,
intr_info,
vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
KVM_ISA_VMX);

+ exit_reason = vmx->exit_reason;
+
switch (exit_reason) {
case EXIT_REASON_EXCEPTION_NMI:
if (is_nmi(intr_info))
--
2.24.1
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