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bh=gf2wukrz25gggOGNXWghFVU/a5BCiAqWLqdLkPFpT7c=; b=TpKDqkuJHeeOpiuKSDZ+VpRJR7YMctX/NboiJRN0P373Gt6GKAiy6F7773Zwc61I0wIhI3 1UooD15AwvB8Gs2mWFTagcJYHnU3tWSSWbJ0hoYJhNTZEIoxnD0fE2PyZc+2gU/gWj+oYk 6HinXwEH4jYwreaY7xiXHt6c5uOqV3k= X-MC-Unique: 2ZSUujTVMRy-SQMqOUiUkg-1 From: Vitaly Kuznetsov To: qemu-devel@nongnu.org Subject: [PATCH RFC v2 09/19] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough Date: Wed, 30 Sep 2020 15:40:17 +0200 Message-Id: <20200930134027.1348021-10-vkuznets@redhat.com> In-Reply-To: <20200930134027.1348021-1-vkuznets@redhat.com> References: <20200930134027.1348021-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vkuznets@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" 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 --- target/i386/kvm.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/target/i386/kvm.c b/target/i386/kvm.c index eb21f77be51b..94e2195acb36 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -1269,11 +1269,7 @@ static int hyperv_handle_properties(CPUState *cs, c =3D cpuid_find_entry(cpuid, HV_CPUID_ENLIGHTMENT_INFO, 0); if (c) { env->features[FEAT_HV_RECOMM_EAX] =3D c->eax; - - /* hv-spinlocks may have been overriden */ - if (cpu->hyperv_spinlock_attempts !=3D HYPERV_SPINLOCK_NEVER_N= OTIFY) { - c->ebx =3D cpu->hyperv_spinlock_attempts; - } + cpu->hyperv_spinlock_attempts =3D c->ebx; } c =3D cpuid_find_entry(cpuid, HV_CPUID_NESTED_FEATURES, 0); if (c) { --=20 2.25.4