From nobody Tue Feb 10 01:33:05 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1633248088581251.0501614204079; Sun, 3 Oct 2021 01:01:28 -0700 (PDT) Received: from localhost ([::1]:41076 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mWwR5-0001W9-8m for importer@patchew.org; Sun, 03 Oct 2021 04:01:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36868) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mWw9N-0003lm-Cr for qemu-devel@nongnu.org; Sun, 03 Oct 2021 03:43:09 -0400 Received: from mail-ed1-x52e.google.com ([2a00:1450:4864:20::52e]:34446) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mWw9L-0000vG-Rb for qemu-devel@nongnu.org; Sun, 03 Oct 2021 03:43:09 -0400 Received: by mail-ed1-x52e.google.com with SMTP id g7so50879612edv.1 for ; Sun, 03 Oct 2021 00:43:07 -0700 (PDT) Received: from avogadro.lan ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id n6sm5560856eds.10.2021.10.03.00.43.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 03 Oct 2021 00:43:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ol7KFbHD80KvHnsxeRqvbBuP7yXULEZLE36r8xBpq44=; b=S6rweDqgrR4OjG1F9obJp5KkAXsTf2KyB8fmw57fPbN5UFcoqQp2X0IM3iRm66YZQv ulcvl6hNQTN5KHpyqTFc3ezQMsAjMxy+loR9Kc6sKnQKASrWSUSe1/vaWQsa6u4CG1ga NTHafT48yr5pC8q6iMUkm/cjvvavufPzODi2X4kQSYhuBSl+9mpy2n+Jufz4ulzHa8Cv l0NuAOwiJreLyj3MQ8hNCIaeBJhF0XkZDCIem6MdZeU5gU7XW+bdeoF0HIYvG2pMtqFi w7AbqwtvHxQcZdq+mSKSt2PBNUFtY571z1BJnVySEqC33HPIlwHsvU0OOptHwntJEQIl PlZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=ol7KFbHD80KvHnsxeRqvbBuP7yXULEZLE36r8xBpq44=; b=V+TU7KxzBMQ/BLVFOzUnixegZCBmrrllHQPv+NuaB4ly50OJhjVJThqL8w9DEK1cMr RtiMe2OQKYpzZuetVD38D9HHsPRhnA9BDY8N/bmoCWUJHspqs/HY/tVI4w1QaxQ2F5WI IkNSUFXpwEkaUu6rlyEvYZrShG8B1Qbod0yvrEjSIb7fXKdetnentjoyyxslXsTb22kh 5jspm/040fEWk+d4AMG3skrgIwNdvx+Q12xaQtePHHWXC8BT0u/LTFn7nGwJBo4AbfeN 7LqQyiuuHbWROpLBjUt1FiWXxC2wov/1uyfC5tnjd8yfjQEyWcIrt79cZRQUllBPd4hY zZ4A== X-Gm-Message-State: AOAM530FEFCpkCCQxwic8d9zgtXdRq5oDQaydM5Wka1MVphXF01eEmWE mJl+JZaJEfKxi6KzjN1FqLyF/oNQWPY= X-Google-Smtp-Source: ABdhPJyStHcgOWrcfMnpf+ajGqoEl147ffSP7n+OGn8FbLJUd8h8idR6TaruVwNT2XYLM9nEirYYww== X-Received: by 2002:a17:906:3181:: with SMTP id 1mr9358224ejy.388.1633246986561; Sun, 03 Oct 2021 00:43:06 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PULL 19/30] i386: Move HV_APIC_ACCESS_RECOMMENDED bit setting to hyperv_fill_cpuids() Date: Sun, 3 Oct 2021 09:42:39 +0200 Message-Id: <20211003074250.60869-20-pbonzini@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211003074250.60869-1-pbonzini@redhat.com> References: <20211003074250.60869-1-pbonzini@redhat.com> MIME-Version: 1.0 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=2a00:1450:4864:20::52e; envelope-from=paolo.bonzini@gmail.com; helo=mail-ed1-x52e.google.com X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: Vitaly Kuznetsov Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1633248090353100001 Content-Type: text/plain; charset="utf-8" From: Vitaly Kuznetsov In preparation to enabling Hyper-V + APICv/AVIC move HV_APIC_ACCESS_RECOMMENDED setting out of kvm_hyperv_properties[]: the 'real' feature bit for the vAPIC features is HV_APIC_ACCESS_AVAILABLE, HV_APIC_ACCESS_RECOMMENDED is a recommendation to use the feature which we may not always want to give. Signed-off-by: Vitaly Kuznetsov Message-Id: <20210902093530.345756-6-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini --- target/i386/kvm/kvm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index fbe6b7ac72..a9a8f77df3 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -821,9 +821,7 @@ static struct { .desc =3D "virtual APIC (hv-vapic)", .flags =3D { {.func =3D HV_CPUID_FEATURES, .reg =3D R_EAX, - .bits =3D HV_APIC_ACCESS_AVAILABLE}, - {.func =3D HV_CPUID_ENLIGHTMENT_INFO, .reg =3D R_EAX, - .bits =3D HV_APIC_ACCESS_RECOMMENDED} + .bits =3D HV_APIC_ACCESS_AVAILABLE} } }, [HYPERV_FEAT_TIME] =3D { @@ -1366,6 +1364,7 @@ static int hyperv_fill_cpuids(CPUState *cs, c->ebx |=3D HV_POST_MESSAGES | HV_SIGNAL_EVENTS; } =20 + /* Not exposed by KVM but needed to make CPU hotplug in Windows work */ c->edx |=3D HV_CPU_DYNAMIC_PARTITIONING_AVAILABLE; =20 @@ -1374,6 +1373,10 @@ static int hyperv_fill_cpuids(CPUState *cs, c->eax =3D hv_build_cpuid_leaf(cs, HV_CPUID_ENLIGHTMENT_INFO, R_EAX); c->ebx =3D cpu->hyperv_spinlock_attempts; =20 + if (hyperv_feat_enabled(cpu, HYPERV_FEAT_VAPIC)) { + c->eax |=3D HV_APIC_ACCESS_RECOMMENDED; + } + if (cpu->hyperv_no_nonarch_cs =3D=3D ON_OFF_AUTO_ON) { c->eax |=3D HV_NO_NONARCH_CORESHARING; } else if (cpu->hyperv_no_nonarch_cs =3D=3D ON_OFF_AUTO_AUTO) { --=20 2.31.1