KVM: Fold kvm_run::exit_type into kvm_run::exit_reason

Currently, userspace is told about the nature of the last exit from the
guest using two fields, exit_type and exit_reason, where exit_type has
just two enumerations (and no need for more).  So fold exit_type into
exit_reason, reducing the complexity of determining what really happened.

Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 71410a65bb90..cf9568fbe8a5 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1922,10 +1922,10 @@ again:
 
         asm ("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS));
 
-        kvm_run->exit_type = 0;
         if (fail) {
-                kvm_run->exit_type = KVM_EXIT_TYPE_FAIL_ENTRY;
-                kvm_run->exit_reason = vmcs_read32(VM_INSTRUCTION_ERROR);
+                kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
+                kvm_run->fail_entry.hardware_entry_failure_reason
+                        = vmcs_read32(VM_INSTRUCTION_ERROR);
                 r = 0;
         } else {
                 /*
@@ -1935,7 +1935,6 @@ again:
                         profile_hit(KVM_PROFILING, (void *)vmcs_readl(GUEST_RIP));
 
                 vcpu->launched = 1;
-                kvm_run->exit_type = KVM_EXIT_TYPE_VM_EXIT;
                 r = kvm_handle_exit(kvm_run, vcpu);
                 if (r > 0) {
                         /* Give scheduler a change to reschedule. */