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kvm: x86: Add user space part for in-kernel APIC

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This introduces the alternative APIC device which makes use of KVM's
in-kernel device model. External NMI injection via LINT1 is emulated by
checking the current state of the in-kernel APIC, only injecting a NMI
into the VCPU if LINT1 is unmasked and configured to DM_NMI.

MSI is not yet supported, so we disable this when the in-kernel model is
in use.

CC: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Jan Kiszka 2011-10-16 13:23:26 +02:00
parent 9b5b76d449
commit 680c1c6fd7
5 changed files with 191 additions and 6 deletions
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4
kvm.h
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@ -31,6 +31,7 @@ extern int kvm_allowed;
#endif
struct kvm_run;
struct kvm_lapic_state;
typedef struct KVMCapabilityInfo {
const char *name;
@ -134,6 +135,9 @@ int kvm_irqchip_set_irq(KVMState *s, int irq, int level);
void kvm_irqchip_add_route(KVMState *s, int gsi, int irqchip, int pin);
int kvm_irqchip_commit_routes(KVMState *s);
void kvm_put_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic);
struct kvm_guest_debug;
struct kvm_debug_exit_arch;