This adds a wrapper function inject_realmode_interrupt() around the emulator function emulate_int_real() to allow real mode interrupt injection.
Signed-off-by: Mohammed Gamal <[email protected]> --- arch/x86/kvm/x86.c | 14 ++++++++++++++ arch/x86/kvm/x86.h | 1 + 2 files changed, 15 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 1722d37..5915f2e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3936,6 +3936,20 @@ static void inject_emulated_exception(struct kvm_vcpu *vcpu) kvm_queue_exception(vcpu, ctxt->exception); } +int inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq) +{ + struct x86_emulate_ctxt *ctxt = &vcpu->arch.emulate_ctxt; + int rc; + + rc = emulate_int_real(ctxt, &emulate_ops, irq); + + if (rc != X86EMUL_CONTINUE) + return EMULATE_FAIL; + + return EMULATE_DONE; +} +EXPORT_SYMBOL_GPL(inject_realmode_interrupt); + static int handle_emulation_failure(struct kvm_vcpu *vcpu) { ++vcpu->stat.insn_emulation_fail; diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index b7a4047..c6e8a4d 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -67,5 +67,6 @@ static inline int is_paging(struct kvm_vcpu *vcpu) void kvm_before_handle_nmi(struct kvm_vcpu *vcpu); void kvm_after_handle_nmi(struct kvm_vcpu *vcpu); +int inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq); #endif -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
