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authorGleb Natapov <gleb@redhat.com>2009-02-04 17:28:14 +0200
committerAvi Kivity <avi@redhat.com>2009-03-24 11:03:11 +0200
commit4925663a079c77d95d8685228ad6675fc5639c8e (patch)
tree52e93df78b23a44ed21d015f835688f673dd351a /include/linux/kvm.h
parent452425dbaa1974e9fc489e64a8de46a47b4c2754 (diff)
downloadop-kernel-dev-4925663a079c77d95d8685228ad6675fc5639c8e.zip
op-kernel-dev-4925663a079c77d95d8685228ad6675fc5639c8e.tar.gz
KVM: Report IRQ injection status to userspace.
IRQ injection status is either -1 (if there was no CPU found that should except the interrupt because IRQ was masked or ioapic was misconfigured or ...) or >= 0 in that case the number indicates to how many CPUs interrupt was injected. If the value is 0 it means that the interrupt was coalesced and probably should be reinjected. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'include/linux/kvm.h')
-rw-r--r--include/linux/kvm.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 2163b3d..dd48225 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -48,7 +48,10 @@ struct kvm_irq_level {
* For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
* For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
*/
- __u32 irq;
+ union {
+ __u32 irq;
+ __s32 status;
+ };
__u32 level;
};
@@ -402,6 +405,7 @@ struct kvm_trace_rec {
#ifdef __KVM_HAVE_IOAPIC
#define KVM_CAP_IRQ_ROUTING 25
#endif
+#define KVM_CAP_IRQ_INJECT_STATUS 26
#ifdef KVM_CAP_IRQ_ROUTING
@@ -465,6 +469,7 @@ struct kvm_irq_routing {
#define KVM_CREATE_PIT _IO(KVMIO, 0x64)
#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
+#define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level)
#define KVM_REGISTER_COALESCED_MMIO \
_IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
#define KVM_UNREGISTER_COALESCED_MMIO \
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