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KVM: IOAPIC/LAPIC: Enable NMI support 

[avi: fix ia64 build breakage]

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
hifive-unleashed-5.1
Sheng Yang 2008-05-15 09:52:48 +08:00 committed by Avi Kivity
parent 50d40d7fb9
commit 3419ffc8e4
5 changed files with 32 additions and 3 deletions
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3
arch/x86/kvm/lapic.c
View File

@ -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:

6
arch/x86/kvm/x86.c
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@ -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);

2
include/asm-ia64/kvm_host.h
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@ -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

4
include/asm-x86/kvm_host.h
View File

@ -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,

20
virt/kvm/ioapic.c
View File

@ -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);