[PATCH 1/4] kvm: Simplify invtsc check

Eduardo Habkost
2016-12-27T19:21:17Z

Instead of searching the table we have just built, we can check
the env->features field directly.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
target/i386/kvm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 10a9cd8..a26290f 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -962,8 +962,8 @@ int kvm_arch_init_vcpu(CPUState *cs)
has_msr_mcg_ext_ctl = has_msr_feature_control = true;
}

- c = cpuid_find_entry(&cpuid_data.cpuid, 0x80000007, 0);
- if (c && (c->edx & 1<<8) && invtsc_mig_blocker == NULL) {
+ if ((env->features[FEAT_8000_0007_EDX] & CPUID_APM_INVTSC) &&
+ invtsc_mig_blocker == NULL) {
/* for migration */
error_setg(&invtsc_mig_blocker,
"State blocked by non-migratable CPU device"
--
2.7.4