Make use of the KVM_TSC_CONTROL feature if available.
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
target-i386/kvm.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 1ae2d61..2d89544 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -528,6 +528,17 @@ int kvm_arch_init_vcpu(CPUState *env)
}
#endif
+#ifdef KVM_CAP_TSC_CONTROL
+ r = kvm_check_extension(env->kvm_state, KVM_CAP_TSC_CONTROL);
+ if (r && env->tsc_khz) {
+ r = kvm_vcpu_ioctl(env, KVM_SET_TSC_KHZ, env->tsc_khz);
+ if (r < 0) {
+ fprintf(stderr, "KVM_SET_TSC_KHZ failed\n");
+ return r;
+ }
+ }
+#endif
+
qemu_add_vm_change_state_handler(cpu_update_state, env);
return kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data);
--
1.7.4.1
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