From: Sean Christopherson Date: Tue, 27 Aug 2019 21:40:28 +0000 (-0700) Subject: KVM: x86: Clean up handle_emulation_failure() X-Git-Tag: v5.4-rc1~26^2~38 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=22da61c9123e574f607c92d8f69165b1ffff6d5f;p=linux.git 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 Reviewed-by: Liran Alon Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- 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,