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kvm: x86: Add support for VCPU event states

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This patch extends the qemu-kvm state sync logic with support for
KVM_GET/SET_VCPU_EVENTS, giving access to yet missing exception,
interrupt and NMI states.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-11-25 00:33:03 +01:00 • committed by Anthony Liguori
parent 5a2e3c2e11
commit a0fb002c64
5 changed files with 100 additions and 0 deletions
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11
kvm-all.c
View file

@ -61,6 +61,7 @@ struct KVMState
int coalesced_mmio;
int broken_set_mem_region;
int migration_log;
int vcpu_events;
#ifdef KVM_CAP_SET_GUEST_DEBUG
struct kvm_sw_breakpoint_head kvm_sw_breakpoints;
#endif
@ -479,6 +480,11 @@ int kvm_init(int smp_cpus)
}
#endif
s->vcpu_events = 0;
#ifdef KVM_CAP_VCPU_EVENTS
s->vcpu_events = kvm_check_extension(s, KVM_CAP_VCPU_EVENTS);
#endif
ret = kvm_arch_init(s, smp_cpus);
if (ret < 0)
goto err;
@ -868,6 +874,11 @@ int kvm_has_sync_mmu(void)
#endif
}
int kvm_has_vcpu_events(void)
{
return kvm_state->vcpu_events;
}
void kvm_setup_guest_memory(void *start, size_t size)
{
if (!kvm_has_sync_mmu()) {