From nobody Mon Feb 9 16:04:16 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=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1596788143; cv=none; d=zohomail.com; s=zohoarc; b=P6fNOtPrb+COMdLEMeZ53KJ9Q/WRLVN2AVPZbn6jSw/UAHx7JtIlJcD6eblLVtLqAgqfS68To3gt0moWx6Mnm4+mMc2bSUWuhOfdspJbyYe1QA/vIZ0HM0jyy6kaSo23VR7W4zkxxtvSwqiKCuJM7CSXQEnwdvH+BVZ6bxQe8gI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1596788143; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=TviGzmtVooeSyONCBmDeM4dNkoolotdPP8RSZaeKQ7o=; b=bKMY/+JkTFOBH+u4m0E1GZXjtXVaAZHUeYQX143gIVNdhj9lVcAlHNJDjomPHVzdVWaa9gvtgs1wmTRGmKp+J0XQG6kCU50XNCbeg5J7+2GYx5W2Snd4m8uQ86A/XPDcYxyXKP+wjt9OA76iqsCK6LO8d4FHZvsn30QpqECXpUk= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1596788143440569.3949452818941; Fri, 7 Aug 2020 01:15:43 -0700 (PDT) Received: from localhost ([::1]:58904 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k3xXS-0007V4-4E for importer@patchew.org; Fri, 07 Aug 2020 04:15:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45776) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k3xSk-0007CZ-1f for qemu-devel@nongnu.org; Fri, 07 Aug 2020 04:10:50 -0400 Received: from mail-io1-xd44.google.com ([2607:f8b0:4864:20::d44]:38654) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1k3xSh-0001iZ-L5 for qemu-devel@nongnu.org; Fri, 07 Aug 2020 04:10:49 -0400 Received: by mail-io1-xd44.google.com with SMTP id l1so1073662ioh.5 for ; Fri, 07 Aug 2020 01:10:47 -0700 (PDT) Received: from localhost.localdomain ([147.75.106.138]) by smtp.gmail.com with ESMTPSA id l144sm6233546ill.6.2020.08.07.01.10.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Aug 2020 01:10:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=TviGzmtVooeSyONCBmDeM4dNkoolotdPP8RSZaeKQ7o=; b=NnLuiKB3M9BBUwK6Ivp+tfr1wgrcB2dVtHLFJLK3G5M7zD8ZVcpU+F8n1mLDr+8QX7 jEwIsOVdjpwqq5wwpQbmgBnzV9U+J6n+aoT8+z3R+iedUYm8Sgrymxsb4sBNMDm46jdi OoZtB/mh1L99BGq99JUGlHhsROt4PcYEyGGaM28kH99B8T7GiszCu9tlab4pn+VW/EfL wVFSfWlHzJo3TSK+b0IRS3cnNVCydf+zItie7bCmpjvdMlXCUc0kG1YCTTKelDnkvTPS CwnX+vWK8IdqIEcz306Dj+u4Kb37g7NJQM4pOaOZPN9RXzqzisygEg1OmHGLagiH4raL 5EHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=TviGzmtVooeSyONCBmDeM4dNkoolotdPP8RSZaeKQ7o=; b=eCkeMHQlsRwK2GbhnfZ53tysBvknBhSjT3G7pULUI7ZSbTMJgYnia6/wTGs/k0/k3R JVpSvMwbZWErBNSDuf1UCZmyghZcjlk6Yh6sU9d9q8Xid/sjOZ7YeJHoPrFIDQimmVyk Ln8Lhm4kQo0SERRpn7AOc4bqy3DpSuszE/p2HVgtlObWC18hbJTvjASSdbJ1z2uBlKMz arzeg035TmcrUeJHb03jluKrWaEZY54VfJGOv02A4OTRBkjKJYFw466H0n3BNBkD7UIj f/BgP7SSqZCQVKRmjwslCdlmUI1yq1G1SQuqOP7hnrnqiu76Ddrpfi1yamMQ1sL6joq7 2gZg== X-Gm-Message-State: AOAM530Pi+KJdrh7kXo1mA4X/87WaB9EFJYxFhYG6a3qRdsH7J875zXo URnix8KlKrxTsw+NWhs34799 X-Google-Smtp-Source: ABdhPJzbWE2PhJrPC7izkBXrhGIft8RwnixzjcRw8vrv/HWqOtjoXZzdMHja6Sn8a9Axo0m5dOjsbQ== X-Received: by 2002:a6b:5d05:: with SMTP id r5mr3266184iob.14.1596787846498; Fri, 07 Aug 2020 01:10:46 -0700 (PDT) From: Haibo Xu To: peter.maydell@linaro.org Subject: [PATCH 7/7] target/arm/cpu: spe: Enable spe to work with host cpu Date: Fri, 7 Aug 2020 08:10:37 +0000 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: 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=2607:f8b0:4864:20::d44; envelope-from=haibo.xu@linaro.org; helo=mail-io1-xd44.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: drjones@redhat.com, qemu-arm@nongnu.org, philmd@redhat.com, qemu-devel@nongnu.org, Haibo Xu 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" Turn on the spe cpu property by default when working with host cpu type in KVM mode, i.e. we can now do '-cpu host' to add the=20 vSPE, and '-cpu host,spe=3Doff' to remove it.=20 Signed-off-by: Haibo Xu --- target/arm/cpu.c | 4 ++++ target/arm/kvm64.c | 9 +++++++++ 2 files changed, 13 insertions(+) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 67ab0089fd..42fa99953c 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -1719,6 +1719,10 @@ static void arm_cpu_realizefn(DeviceState *dev, Erro= r **errp) cpu->pmceid1 =3D 0; } =20 =20 + if (!cpu->has_spe || !kvm_enabled()) { + unset_feature(env, ARM_FEATURE_SPE); + } + if (!arm_feature(env, ARM_FEATURE_EL2)) { /* Disable the hypervisor feature bits in the processor feature * registers if we don't have EL2. These are id_pfr1[15:12] and diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index be045ccc5f..4ea58afc1d 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -679,6 +679,7 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *= ahcf) features |=3D 1ULL << ARM_FEATURE_AARCH64; features |=3D 1ULL << ARM_FEATURE_PMU; features |=3D 1ULL << ARM_FEATURE_GENERIC_TIMER; + features |=3D 1ULL << ARM_FEATURE_SPE; ahcf->features =3D features; @@ -826,6 +827,14 @@ int kvm_arch_init_vcpu(CPUState *cs) } else { env->features &=3D ~(1ULL << ARM_FEATURE_PMU); } + if (!kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_SPE_V1)) { + cpu->has_spe =3D false; + } + if (cpu->has_spe) { + cpu->kvm_init_features[0] |=3D 1 << KVM_ARM_VCPU_SPE_V1; + } else { + env->features &=3D ~(1ULL << ARM_FEATURE_SPE); + } if (cpu_isar_feature(aa64_sve, cpu)) { assert(kvm_arm_sve_supported()); cpu->kvm_init_features[0] |=3D 1 << KVM_ARM_VCPU_SVE; --=20 2.17.1