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bh=ozUMRrM2eyOZJHYDkdbYu4dXm99W4vQ59WWX//UqT/0=; b=IML9Xux4D20vhgIvbWI7I3sfp1EZ7K06TOjFuv12kZKxTLB9jiMDNwUfyCLpkDudUnZInz ZijoXfY/MAKE2n6FJKdSh85E/lijriTSIBDUJiZPX3jKD6cKdRxxnoGoea06RRwoRks58f iPAI2v3df3WYhbwB7gt6cc42skgayeA= X-MC-Unique: aFFIXDU-OhmrALx85VKYNw-1 From: Vitaly Kuznetsov To: qemu-devel@nongnu.org Subject: [PATCH v3 04/19] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough Date: Thu, 7 Jan 2021 16:06:25 +0100 Message-Id: <20210107150640.539239-5-vkuznets@redhat.com> In-Reply-To: <20210107150640.539239-1-vkuznets@redhat.com> References: <20210107150640.539239-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 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; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=63.128.21.124; envelope-from=vkuznets@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.246, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Marcelo Tosatti , Eduardo Habkost , Igor Mammedov Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; 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/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 =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 2.29.2