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 v6 03/19] i386: always fill Hyper-V CPUID feature leaves from X86CPU data
Date: Thu, 22 Apr 2021 18:11:14 +0200 [thread overview]
Message-ID: <20210422161130.652779-4-vkuznets@redhat.com> (raw)
In-Reply-To: <20210422161130.652779-1-vkuznets@redhat.com>
We have all the required data in X86CPU already and as we are about to
split hyperv_handle_properties() into hyperv_expand_features()/
hyperv_fill_cpuids() we can remove the blind copy. The functional change
is that QEMU won't pass CPUID leaves it doesn't currently know about
to the guest but arguably this is a good change.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
target/i386/kvm/kvm.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index afd173514da1..7c751185491f 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -1207,9 +1207,6 @@ static int hyperv_handle_properties(CPUState *cs,
}
if (cpu->hyperv_passthrough) {
- memcpy(cpuid_ent, &cpuid->entries[0],
- cpuid->nent * sizeof(cpuid->entries[0]));
-
c = cpuid_find_entry(cpuid, HV_CPUID_VENDOR_AND_MAX_FUNCTIONS, 0);
if (c) {
cpu->hyperv_vendor_id[0] = c->ebx;
@@ -1309,12 +1306,6 @@ static int hyperv_handle_properties(CPUState *cs,
goto free;
}
- if (cpu->hyperv_passthrough) {
- /* We already copied all feature words from KVM as is */
- r = cpuid->nent;
- goto free;
- }
-
c = &cpuid_ent[cpuid_i++];
c->function = HV_CPUID_VENDOR_AND_MAX_FUNCTIONS;
c->eax = hyperv_feat_enabled(cpu, HYPERV_FEAT_EVMCS) ?
--
2.30.2
next prev parent reply other threads:[~2021-04-22 16:18 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 16:11 [PATCH v6 00/19] i386: KVM: expand Hyper-V features early Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 01/19] i386: keep hyperv_vendor string up-to-date Vitaly Kuznetsov
2021-04-30 23:07 ` Eduardo Habkost
2021-06-02 11:41 ` Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 02/19] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough Vitaly Kuznetsov
2021-04-30 23:09 ` Eduardo Habkost
2021-04-22 16:11 ` Vitaly Kuznetsov [this message]
2021-04-30 23:15 ` [PATCH v6 03/19] i386: always fill Hyper-V CPUID feature leaves from X86CPU data Eduardo Habkost
2021-04-22 16:11 ` [PATCH v6 04/19] i386: stop using env->features[] for filling Hyper-V CPUIDs Vitaly Kuznetsov
2021-05-01 0:34 ` Eduardo Habkost
2021-05-20 19:49 ` Eduardo Habkost
2021-05-21 7:54 ` Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 05/19] i386: introduce hyperv_feature_supported() Vitaly Kuznetsov
2021-05-20 19:53 ` Eduardo Habkost
2021-05-21 7:57 ` Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 06/19] i386: introduce hv_cpuid_get_host() Vitaly Kuznetsov
2021-05-20 20:01 ` Eduardo Habkost
2021-05-21 7:57 ` Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 07/19] i386: drop FEAT_HYPERV feature leaves Vitaly Kuznetsov
2021-05-20 20:13 ` Eduardo Habkost
2021-04-22 16:11 ` [PATCH v6 08/19] i386: introduce hv_cpuid_cache Vitaly Kuznetsov
2021-05-20 20:16 ` Eduardo Habkost
2021-04-22 16:11 ` [PATCH v6 09/19] i386: split hyperv_handle_properties() into hyperv_expand_features()/hyperv_fill_cpuids() Vitaly Kuznetsov
2021-05-20 21:34 ` Eduardo Habkost
2021-04-22 16:11 ` [PATCH v6 10/19] i386: move eVMCS enablement to hyperv_init_vcpu() Vitaly Kuznetsov
2021-05-21 21:20 ` Eduardo Habkost
2021-05-24 12:00 ` Vitaly Kuznetsov
2021-05-26 16:35 ` Eduardo Habkost
2021-05-27 7:27 ` Vitaly Kuznetsov
2021-05-27 19:16 ` Eduardo Habkost
2021-04-22 16:11 ` [PATCH v6 11/19] i386: switch hyperv_expand_features() to using error_setg() Vitaly Kuznetsov
2021-05-21 21:37 ` Eduardo Habkost
2021-05-24 12:05 ` Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 12/19] i386: adjust the expected KVM_GET_SUPPORTED_HV_CPUID array size Vitaly Kuznetsov
2021-05-21 21:37 ` Eduardo Habkost
2021-04-22 16:11 ` [PATCH v6 13/19] i386: prefer system KVM_GET_SUPPORTED_HV_CPUID ioctl over vCPU's one Vitaly Kuznetsov
2021-05-21 21:42 ` Eduardo Habkost
2021-05-24 12:08 ` Vitaly Kuznetsov
2021-05-26 16:46 ` Eduardo Habkost
2021-05-26 16:56 ` Daniel P. Berrangé
2021-04-22 16:11 ` [PATCH v6 14/19] i386: use global kvm_state in hyperv_enabled() check Vitaly Kuznetsov
2021-05-21 21:42 ` Eduardo Habkost
2021-04-22 16:11 ` [PATCH v6 15/19] i386: expand Hyper-V features during CPU feature expansion time Vitaly Kuznetsov
2021-05-21 21:45 ` Eduardo Habkost
2021-05-24 12:13 ` Vitaly Kuznetsov
2021-05-26 16:57 ` Eduardo Habkost
2021-05-27 7:29 ` Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 16/19] i386: kill off hv_cpuid_check_and_set() Vitaly Kuznetsov
2021-05-21 21:56 ` Eduardo Habkost
2021-05-24 12:13 ` Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 17/19] i386: HV_HYPERCALL_AVAILABLE privilege bit is always needed Vitaly Kuznetsov
2021-05-21 22:06 ` Eduardo Habkost
2021-05-24 12:22 ` Vitaly Kuznetsov
2021-05-26 17:05 ` Eduardo Habkost
2021-05-27 7:37 ` Vitaly Kuznetsov
2021-05-27 19:34 ` Eduardo Habkost
2021-04-22 16:11 ` [PATCH v6 18/19] i386: Hyper-V SynIC requires POST_MESSAGES/SIGNAL_EVENTS priviliges Vitaly Kuznetsov
2021-04-22 16:11 ` [PATCH v6 19/19] qtest/hyperv: Introduce a simple hyper-v test Vitaly Kuznetsov
2021-05-26 20:20 ` [PATCH v6 00/19] i386: KVM: expand Hyper-V features early Eduardo Habkost
2021-05-27 7:39 ` Vitaly Kuznetsov
2021-05-27 19:35 ` Eduardo Habkost
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