From: Eduardo Habkost <ehabkost@redhat.com>
To: qemu-devel@nongnu.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, Haozhong Zhang <haozhong.zhang@intel.com>
Subject: [Qemu-devel] [PATCH 1/4] kvm: Simplify invtsc check
Date: Tue, 27 Dec 2016 17:21:17 -0200 [thread overview]
Message-ID: <1482866480-26208-2-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1482866480-26208-1-git-send-email-ehabkost@redhat.com>
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
next prev parent reply other threads:[~2016-12-27 19:21 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-27 19:21 [Qemu-devel] [PATCH 0/4] Allow migration with invtsc if there's no frequency mismatch Eduardo Habkost
2016-12-27 19:21 ` Eduardo Habkost [this message]
2016-12-29 18:57 ` [Qemu-devel] [PATCH 1/4] kvm: Simplify invtsc check Marcelo Tosatti
2016-12-27 19:21 ` [Qemu-devel] [PATCH 2/4] kvm: Allow invtsc migration if tsc-khz is set explicitly Eduardo Habkost
2017-01-04 11:44 ` Marcelo Tosatti
2017-01-04 11:57 ` Marcelo Tosatti
2017-01-04 13:40 ` Eduardo Habkost
2017-01-04 13:45 ` Marcelo Tosatti
2017-01-04 13:51 ` Eduardo Habkost
2016-12-27 19:21 ` [Qemu-devel] [PATCH 3/4] pc: Add 2.9 machine-types Eduardo Habkost
2016-12-30 13:38 ` Igor Mammedov
2017-01-04 14:01 ` Laszlo Ersek
2017-01-04 14:20 ` Eduardo Habkost
2017-01-04 16:40 ` Laszlo Ersek
2017-01-04 17:46 ` Eduardo Habkost
2016-12-27 19:21 ` [Qemu-devel] [PATCH 4/4] kvm: Allow migration with invtsc Eduardo Habkost
2017-01-04 11:56 ` Marcelo Tosatti
2017-01-04 13:39 ` Eduardo Habkost
2017-01-04 19:59 ` [Qemu-devel] TSC frequency configuration & invtsc migration (was Re: [PATCH 4/4] kvm: Allow migration with invtsc) Eduardo Habkost
2017-01-04 22:26 ` Marcelo Tosatti
2017-01-05 1:36 ` Eduardo Habkost
2017-01-05 10:48 ` Marcelo Tosatti
2017-01-05 10:50 ` Marcelo Tosatti
2017-01-05 12:19 ` Eduardo Habkost
2017-01-05 12:33 ` [Qemu-devel] [libvirt] " Daniel P. Berrange
2017-01-05 12:48 ` Eduardo Habkost
2017-01-05 13:00 ` Daniel P. Berrange
2017-01-05 13:11 ` Eduardo Habkost
2017-01-10 16:38 ` Paolo Bonzini
2017-01-06 10:31 ` [Qemu-devel] " Marcelo Tosatti
2017-01-08 15:49 ` [Qemu-devel] How to make dest host abort migration safely " Eduardo Habkost
2017-01-09 10:04 ` Dr. David Alan Gilbert
2017-01-08 20:28 ` [Qemu-devel] Exporting kvm_max_guest_tsc_khz to userspace " Eduardo Habkost
2017-01-09 14:58 ` Paolo Bonzini
2017-01-11 13:26 ` Eduardo Habkost
2017-01-11 14:06 ` Paolo Bonzini
2017-01-10 16:36 ` [Qemu-devel] TSC frequency configuration & invtsc migration " Paolo Bonzini
2017-01-11 11:58 ` Eduardo Habkost
2017-01-18 11:55 ` Marcelo Tosatti
2017-01-18 12:43 ` Eduardo Habkost
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