From nobody Mon Feb 9 23:02:52 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 1646677130554332.90313059318555; Mon, 7 Mar 2022 10:18:50 -0800 (PST) Received: from localhost ([::1]:44342 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nRHwX-0004LT-Ib for importer@patchew.org; Mon, 07 Mar 2022 13:18:49 -0500 Received: from eggs.gnu.org ([209.51.188.92]:55276) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nRHug-0000ye-6L for qemu-devel@nongnu.org; Mon, 07 Mar 2022 13:16:54 -0500 Received: from [2a00:1450:4864:20::634] (port=45940 helo=mail-ej1-x634.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nRHud-0005Nv-4I for qemu-devel@nongnu.org; Mon, 07 Mar 2022 13:16:53 -0500 Received: by mail-ej1-x634.google.com with SMTP id qa43so33763460ejc.12 for ; Mon, 07 Mar 2022 10:16:49 -0800 (PST) Received: from avogadro.lan ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id d8-20020a170906304800b006cdf8a1e146sm4983382ejd.217.2022.03.07.10.16.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Mar 2022 10:16:47 -0800 (PST) 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=byqwazwlVQ/4eJBCyBXwpdV3frwdTuMRkxwEg4OFvTQ=; b=hhR/Axw4o1KctX5ZlONHjOLqAxivn7eula7sXHSDDn8MjWDHXnkmbXROj3EgNQ4cjA OgWjyADBSOenxj5CmbSkueXh/ahg4gCwCDYNu/ew8BuYve9zyK3Iy+wkZZRJANtF8GXL VdO3Dtsf0HDyDCi41DBT3o1C9ixn6PGHXRaSIB3+dphTVenBUKvb3a1RERnkSED5YBEJ 4XxuHhijsxuKAR7IvI8NOOs9xotxLj42yMmsofhnqn0v3IGZdVBXBiUeTUCxltAapO6E 6sSMgE922gVDbeF4lIXLHcKfaHqtBs+xPNWPmKJcV30IwC6EtTK2twonybY2viJj6e0A x7AQ== 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=byqwazwlVQ/4eJBCyBXwpdV3frwdTuMRkxwEg4OFvTQ=; b=gQq4Be5EUbw/s3YZCOESIgJ73GXSXBTHiJ0JlZ77qKnPnAv5x4wzxgrFy9CM9MdvUt f/h+npb5KWcBh1cfP9hJw9yitGh8eVpMl9I88E488Sfzavcyf90R68A0PIdfy2dcqfBv kfMNRVkcLaXT6/0tlsjXOYuRIbO0tWY8kgH2xoilSxL7ttWTz70WTuqH4sEvBYEE1n7i SORBFylt+X+cYoEa2kxg0eUT4pndzJVXP5HjD7AA2NBqrXev/3YyxvU+u1J2NSODxYGm tgS9/jIqpFfd5OZpdB60hNDr57XYmvd3o+BEMSupCII5Mc5P2QPDCN6dxn8anIUGPtlm +3Ng== X-Gm-Message-State: AOAM531vYxqasutVG0Z+NkObAmcpqk7bko02CB/quM1A0OLO2YzMEccq M0x151b6M098newnKQBBtLOngvW4XZQ= X-Google-Smtp-Source: ABdhPJw6wx6euQtoVGPBqetw5LiRF+WcCOxxKuOF9XD8Ihe6nJxEnKV7pqtxX2IFommbgXFdLP6JIA== X-Received: by 2002:a17:906:9751:b0:6db:cf3:e7db with SMTP id o17-20020a170906975100b006db0cf3e7dbmr7785183ejy.58.1646677008332; Mon, 07 Mar 2022 10:16:48 -0800 (PST) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PULL 16/23] x86: Add XFD faulting bit for state components Date: Mon, 7 Mar 2022 19:16:26 +0100 Message-Id: <20220307181633.596898-17-pbonzini@redhat.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220307181633.596898-1-pbonzini@redhat.com> References: <20220307181633.596898-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::634 (failed) 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::634; envelope-from=paolo.bonzini@gmail.com; helo=mail-ej1-x634.google.com X-Spam_score_int: 0 X-Spam_score: -0.1 X-Spam_bar: / X-Spam_report: (-0.1 / 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=0.249, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Yang Zhong , Jing Liu 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: 1646677132802100001 Content-Type: text/plain; charset="utf-8" From: Jing Liu Intel introduces XFD faulting mechanism for extended XSAVE features to dynamically enable the features in runtime. If CPUID (EAX=3D0Dh, ECX=3Dn, n>1).ECX[2] is set as 1, it indicates support for XFD faulting of this state component. Signed-off-by: Jing Liu Signed-off-by: Yang Zhong Message-Id: <20220217060434.52460-5-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini --- target/i386/cpu.c | 3 ++- target/i386/cpu.h | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 505ee289bc..79e24bb23f 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5496,7 +5496,8 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, = uint32_t count, const ExtSaveArea *esa =3D &x86_ext_save_areas[count]; *eax =3D esa->size; *ebx =3D esa->offset; - *ecx =3D esa->ecx & ESA_FEATURE_ALIGN64_MASK; + *ecx =3D esa->ecx & + (ESA_FEATURE_ALIGN64_MASK | ESA_FEATURE_XFD_MASK); } } break; diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 9630f4712a..925d0129e2 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -557,8 +557,10 @@ typedef enum X86Seg { #define XSTATE_DYNAMIC_MASK (XSTATE_XTILE_DATA_MASK) =20 #define ESA_FEATURE_ALIGN64_BIT 1 +#define ESA_FEATURE_XFD_BIT 2 =20 #define ESA_FEATURE_ALIGN64_MASK (1U << ESA_FEATURE_ALIGN64_BIT) +#define ESA_FEATURE_XFD_MASK (1U << ESA_FEATURE_XFD_BIT) =20 =20 /* CPUID feature words */ --=20 2.34.1