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Commit 3419ffc8 authored by Sheng Yang's avatar Sheng Yang Committed by Avi Kivity
Browse files

KVM: IOAPIC/LAPIC: Enable NMI support 



[avi: fix ia64 build breakage]

Signed-off-by: default avatarSheng Yang <sheng.yang@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 50d40d7f

arch/x86/kvm/lapic.c

+2 −1
Original line number Diff line number Diff line
@@ -356,8 +356,9 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode, 
	case APIC_DM_SMI:

		printk(KERN_DEBUG "Ignoring guest SMI\n");

		break;



	case APIC_DM_NMI:

		printk(KERN_DEBUG "Ignoring guest NMI\n");

		kvm_inject_nmi(vcpu);

		break;



	case APIC_DM_INIT:

arch/x86/kvm/x86.c

+6 −0
Original line number Diff line number Diff line
@@ -173,6 +173,12 @@ void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long addr, 
	kvm_queue_exception_e(vcpu, PF_VECTOR, error_code);

}



void kvm_inject_nmi(struct kvm_vcpu *vcpu)

{

	vcpu->arch.nmi_pending = 1;

}

EXPORT_SYMBOL_GPL(kvm_inject_nmi);



void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code)

{

	WARN_ON(vcpu->arch.exception.pending);

include/asm-ia64/kvm_host.h

+2 −0
Original line number Diff line number Diff line
@@ -521,4 +521,6 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu); 
int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);

void kvm_sal_emul(struct kvm_vcpu *vcpu);



static inline void kvm_inject_nmi(struct kvm_vcpu *vcpu) {}



#endif

include/asm-x86/kvm_host.h

+4 −0
Original line number Diff line number Diff line
@@ -288,6 +288,8 @@ struct kvm_vcpu_arch { 
	unsigned int hv_clock_tsc_khz;

	unsigned int time_offset;

	struct page *time_page;



	bool nmi_pending;

};



struct kvm_mem_alias {
@@ -515,6 +517,8 @@ void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code); 
void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,

			   u32 error_code);



void kvm_inject_nmi(struct kvm_vcpu *vcpu);



void fx_init(struct kvm_vcpu *vcpu);



int emulator_read_std(unsigned long addr,

virt/kvm/ioapic.c

+18 −2
Original line number Diff line number Diff line
@@ -146,6 +146,11 @@ static int ioapic_inj_irq(struct kvm_ioapic *ioapic, 
	return kvm_apic_set_irq(vcpu, vector, trig_mode);

}



static void ioapic_inj_nmi(struct kvm_vcpu *vcpu)

{

	kvm_inject_nmi(vcpu);

}



static u32 ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest,

				       u8 dest_mode)

{
@@ -239,8 +244,19 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq) 
			}

		}

		break;



		/* TODO: NMI */

	case IOAPIC_NMI:

		for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {

			if (!(deliver_bitmask & (1 << vcpu_id)))

				continue;

			deliver_bitmask &= ~(1 << vcpu_id);

			vcpu = ioapic->kvm->vcpus[vcpu_id];

			if (vcpu)

				ioapic_inj_nmi(vcpu);

			else

				ioapic_debug("NMI to vcpu %d failed\n",

						vcpu->vcpu_id);

		}

		break;

	default:

		printk(KERN_WARNING "Unsupported delivery mode %d\n",

		       delivery_mode);