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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-08-27 23:40:28 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-09-24 13:37:36 +0200 |
| commit | 22da61c9123e574f607c92d8f69165b1ffff6d5f (patch) | |
| tree | 44d800b473e585f6cc00ee023c1932d3732c6ba1 /arch/x86/kvm/x86.c | |
| parent | KVM: x86: Relocate MMIO exit stats counting (diff) | |
| download | linux-22da61c9123e574f607c92d8f69165b1ffff6d5f.tar.xz linux-22da61c9123e574f607c92d8f69165b1ffff6d5f.zip | |
KVM: x86: Clean up handle_emulation_failure()
When handling emulation failure, return the emulation result directly
instead of capturing it in a local variable. Future patches will move
additional cases into handle_emulation_failure(), clean up the cruft
before so there isn't an ugly mix of setting a local variable and
returning directly.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kvm/x86.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 2b92c2ca1d79..786d2f88fdf5 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6304,24 +6304,22 @@ EXPORT_SYMBOL_GPL(kvm_inject_realmode_interrupt); static int handle_emulation_failure(struct kvm_vcpu *vcpu, int emulation_type) { - int r = EMULATE_DONE; - ++vcpu->stat.insn_emulation_fail; trace_kvm_emulate_insn_failed(vcpu); if (emulation_type & EMULTYPE_NO_UD_ON_FAIL) return EMULATE_FAIL; + kvm_queue_exception(vcpu, UD_VECTOR); + if (!is_guest_mode(vcpu) && kvm_x86_ops->get_cpl(vcpu) == 0) { vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR; vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_EMULATION; vcpu->run->internal.ndata = 0; - r = EMULATE_USER_EXIT; + return EMULATE_USER_EXIT; } - kvm_queue_exception(vcpu, UD_VECTOR); - - return r; + return EMULATE_DONE; } static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t cr2, |