From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
Eduardo Habkost <ehabkost@redhat.com>,
Igor Mammedov <imammedo@redhat.com>
Subject: [PATCH v3 04/19] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough
Date: Thu, 7 Jan 2021 16:06:25 +0100 [thread overview]
Message-ID: <20210107150640.539239-5-vkuznets@redhat.com> (raw)
In-Reply-To: <20210107150640.539239-1-vkuznets@redhat.com>
There is no need to have this special case: like all other Hyper-V
enlightenments we can just use kernel's supplied value in hv_passthrough
mode.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
target/i386/kvm/kvm.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index 07a3729b0dee..e50b9cac2494 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -1258,11 +1258,7 @@ static int hyperv_handle_properties(CPUState *cs,
c = cpuid_find_entry(cpuid, HV_CPUID_ENLIGHTMENT_INFO, 0);
if (c) {
env->features[FEAT_HV_RECOMM_EAX] = c->eax;
-
- /* hv-spinlocks may have been overriden */
- if (cpu->hyperv_spinlock_attempts != HYPERV_SPINLOCK_NEVER_NOTIFY) {
- c->ebx = cpu->hyperv_spinlock_attempts;
- }
+ cpu->hyperv_spinlock_attempts = c->ebx;
}
c = cpuid_find_entry(cpuid, HV_CPUID_NESTED_FEATURES, 0);
if (c) {
--
2.29.2
next prev parent reply other threads:[~2021-01-07 15:11 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 15:06 [PATCH v3 00/19] i386: KVM: expand Hyper-V features early and provide simple 'hv-default=on' option Vitaly Kuznetsov
2021-01-07 15:06 ` [PATCH v3 01/19] linux-headers: update against 5.11-rc2 Vitaly Kuznetsov
2021-01-07 15:06 ` [PATCH v3 02/19] i386: introduce kvm_hv_evmcs_available() Vitaly Kuznetsov
2021-01-07 15:06 ` [PATCH v3 03/19] i386: keep hyperv_vendor string up-to-date Vitaly Kuznetsov
2021-01-07 15:06 ` Vitaly Kuznetsov [this message]
2021-01-07 15:06 ` [PATCH v3 05/19] i386: always fill Hyper-V CPUID feature leaves from X86CPU data Vitaly Kuznetsov
2021-01-07 15:06 ` [PATCH v3 06/19] i386: stop using env->features[] for filling Hyper-V CPUIDs Vitaly Kuznetsov
2021-01-07 15:06 ` [PATCH v3 07/19] i386: introduce hyperv_feature_supported() Vitaly Kuznetsov
2021-01-07 15:06 ` [PATCH v3 08/19] i386: introduce hv_cpuid_get_host() Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 09/19] i386: drop FEAT_HYPERV feature leaves Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 10/19] i386: introduce hv_cpuid_cache Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 11/19] i386: split hyperv_handle_properties() into hyperv_expand_features()/hyperv_fill_cpuids() Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 12/19] i386: move eVMCS enablement to hyperv_init_vcpu() Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 13/19] i386: switch hyperv_expand_features() to using error_setg() Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 14/19] i386: adjust the expected KVM_GET_SUPPORTED_HV_CPUID array size Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 15/19] i386: prefer system KVM_GET_SUPPORTED_HV_CPUID ioctl over vCPU's one Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 16/19] i386: use global kvm_state in hyperv_enabled() check Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 17/19] i386: expand Hyper-V features during CPU feature expansion time Vitaly Kuznetsov
2021-01-07 15:14 ` [PATCH v3 18/19] i386: provide simple 'hv-default=on' option Vitaly Kuznetsov
2021-01-15 2:11 ` Igor Mammedov
2021-01-15 9:20 ` Vitaly Kuznetsov
2021-01-20 13:13 ` Igor Mammedov
2021-01-20 14:38 ` Vitaly Kuznetsov
2021-01-20 19:08 ` Igor Mammedov
2021-01-20 20:49 ` Eduardo Habkost
2021-01-21 13:27 ` Igor Mammedov
2021-01-21 16:23 ` Igor Mammedov
2021-01-21 17:08 ` Eduardo Habkost
2021-01-25 13:42 ` David Edmondson
2021-01-21 8:45 ` Vitaly Kuznetsov
2021-01-21 13:49 ` Igor Mammedov
2021-01-21 16:51 ` Vitaly Kuznetsov
2021-01-20 19:55 ` Eduardo Habkost
2021-01-07 15:14 ` [PATCH v3 19/19] qtest/hyperv: Introduce a simple hyper-v test Vitaly Kuznetsov
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