kvm: Add kvm_has_pit_state2 helper
To be used for in-kernel PIT emulation.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/kvm-all.c b/kvm-all.c
index 77eadf6..278085f 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -76,6 +76,7 @@
struct kvm_sw_breakpoint_head kvm_sw_breakpoints;
#endif
int pit_in_kernel;
+ int pit_state2;
int xsave, xcrs;
int many_ioeventfds;
int irqchip_inject_ioctl;
@@ -1058,6 +1059,10 @@
s->xcrs = kvm_check_extension(s, KVM_CAP_XCRS);
#endif
+#ifdef KVM_CAP_PIT_STATE2
+ s->pit_state2 = kvm_check_extension(s, KVM_CAP_PIT_STATE2);
+#endif
+
ret = kvm_arch_init(s);
if (ret < 0) {
goto err;
@@ -1390,6 +1395,11 @@
return kvm_state->xcrs;
}
+int kvm_has_pit_state2(void)
+{
+ return kvm_state->pit_state2;
+}
+
int kvm_has_many_ioeventfds(void)
{
if (!kvm_enabled()) {
