[PATCH v4 2/4] kvm: Introduce kvm_has_intx_set_mask

[Jan Kiszka <jan.kiszka@xxxxxxxxxxx>]

Will be used by PCI device assignment code.

Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
---
 kvm-all.c |    8 ++++++++
 kvm.h     |    1 +
 2 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/kvm-all.c b/kvm-all.c
index 7fed5c9..471293d 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -78,6 +78,7 @@ struct KVMState
     int xsave, xcrs;
     int many_ioeventfds;
     int pit_state2;
+    int intx_set_mask;
     int irqchip_inject_ioctl;
 #ifdef KVM_CAP_IRQ_ROUTING
     struct kvm_irq_routing *irq_routes;
@@ -960,6 +961,8 @@ int kvm_init(void)
     s->pit_state2 = kvm_check_extension(s, KVM_CAP_PIT_STATE2);
 #endif
 
+    s->intx_set_mask = kvm_check_extension(s, KVM_CAP_PCI_2_3);
+
     ret = kvm_arch_init(s);
     if (ret < 0) {
         goto err;
@@ -1319,6 +1322,11 @@ int kvm_has_gsi_routing(void)
 #endif
 }
 
+int kvm_has_intx_set_mask(void)
+{
+    return kvm_state->intx_set_mask;
+}
+
 int kvm_allows_irq0_override(void)
 {
     return !kvm_irqchip_in_kernel() || kvm_has_gsi_routing();
diff --git a/kvm.h b/kvm.h
index 43d4c68..1885be1 100644
--- a/kvm.h
+++ b/kvm.h
@@ -57,6 +57,7 @@ int kvm_has_xcrs(void);
 int kvm_has_many_ioeventfds(void);
 int kvm_has_pit_state2(void);
 int kvm_has_gsi_routing(void);
+int kvm_has_intx_set_mask(void);
 
 int kvm_allows_irq0_override(void);
 
-- 
1.7.3.4

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