KVM: MMU: make return value of mmio page fault handler more readable

Define some meaningful names instead of raw code

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 78ee123de7a3..85c8d51dcbe7 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -5366,10 +5366,10 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu)
         gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS);
 
         ret = handle_mmio_page_fault_common(vcpu, gpa, true);
-        if (likely(ret == 1))
+        if (likely(ret == RET_MMIO_PF_EMULATE))
                 return x86_emulate_instruction(vcpu, gpa, 0, NULL, 0) ==
                                               EMULATE_DONE;
-        if (unlikely(!ret))
+        if (unlikely(ret == RET_MMIO_PF_RETRY))
                 return 1;
 
         /* It is the real ept misconfig */