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d="scan'208";a="310429699" X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.92,264,1650956400"; d="scan'208";a="622320254" From: Xiaoyao Li To: Paolo Bonzini , Marcelo Tosatti Cc: qemu-devel@nongnu.org, xiaoyao.li@intel.com Subject: [PATCH 1/2] i386/cpuid: Decrease cpuid_i when skipping CPUID leaf 1F Date: Tue, 12 Jul 2022 10:12:48 +0800 Message-Id: <20220712021249.3227256-2-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220712021249.3227256-1-xiaoyao.li@intel.com> References: <20220712021249.3227256-1-xiaoyao.li@intel.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=192.55.52.88; envelope-from=xiaoyao.li@intel.com; helo=mga01.intel.com X-Spam_score_int: -51 X-Spam_score: -5.2 X-Spam_bar: ----- X-Spam_report: (-5.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.998, HK_RANDOM_FROM=0.998, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1657592135297100001 Content-Type: text/plain; charset="utf-8" Decrease array index cpuid_i when CPUID leaf 1F is skipped, otherwise it will get an all zero'ed CPUID entry with leaf 0 and subleaf 0. It conflicts with correct leaf 0. Signed-off-by: Xiaoyao Li --- target/i386/kvm/kvm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index b8578882c12b..a0b412a1129f 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -1831,6 +1831,7 @@ int kvm_arch_init_vcpu(CPUState *cs) } case 0x1f: if (env->nr_dies < 2) { + cpuid_i--; break; } /* fallthrough */ --=20 2.27.0 From nobody Mon Feb 9 05:43:24 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=@intel.com; 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=pass(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1657592142; cv=none; d=zohomail.com; s=zohoarc; b=Lx5o3v5+6rpfRXVeFMdCV4TWsjmIKRaL/6aXWGQn7FilCFfPTgNB6u4gs4VmzAT7OeZ2iNNcct6P19jhq4LlUImdvGGnDtYw+BYRK5eujxJ7RI2Iu9Jtp3t+z+EJuybMQ1nv53abGAJugo+H9JjJgyEzzpFD6IELs6EARhMTKWY= ARC-Message-Signature: i=1; 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bh=sW48LhJtFySdFOipzLcNWF35NfAbhYk3bcFRIsTzh+g=; b=N7xLfN2L3nDdq1AqUyk2x9o3hZy/abDNigqskR7j/Aw+CVN1RrSaJLgC mre2rVIN0hBFJbhL7wydtWJi5HqvxSAs+YZynJzhRcyvx+7LVSE/Pexwe 3oNOGWWEn6FHLRiW+tlWr9teBODEOMW4bT9asl5/7QBOADB0Ly2vegpDr 6zAWpjZHL3t8pJqZATj+0kfHn3S3Dze+94BHduA6MOP4uNb8Tdet+lLY6 qkjBYaEdAJZ2Lmb71bkwIJhmSEbPIMVV5+ldMawwZRotk07q0z/+QxyKV Ki43wods9wdKHtQOyXMGPFkSMPdS5v7+Ar7k5/CYUDYzAvVnA49X7gUOw Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10405"; a="310429703" X-IronPort-AV: E=Sophos;i="5.92,264,1650956400"; d="scan'208";a="310429703" X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.92,264,1650956400"; d="scan'208";a="622320257" From: Xiaoyao Li To: Paolo Bonzini , Marcelo Tosatti Cc: qemu-devel@nongnu.org, xiaoyao.li@intel.com Subject: [PATCH 2/2] i386/cpuid: Remove subleaf constraint on CPUID leaf 1F Date: Tue, 12 Jul 2022 10:12:49 +0800 Message-Id: <20220712021249.3227256-3-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220712021249.3227256-1-xiaoyao.li@intel.com> References: <20220712021249.3227256-1-xiaoyao.li@intel.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=192.55.52.88; envelope-from=xiaoyao.li@intel.com; helo=mga01.intel.com X-Spam_score_int: -51 X-Spam_score: -5.2 X-Spam_bar: ----- X-Spam_report: (-5.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.998, HK_RANDOM_FROM=0.998, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1657592143264100001 Content-Type: text/plain; charset="utf-8" No such constraint that subleaf index needs to be less than 64. Signed-off-by: Xiaoyao Li --- target/i386/kvm/kvm.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index a0b412a1129f..3efa524b4b93 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -1843,10 +1843,6 @@ int kvm_arch_init_vcpu(CPUState *cs) break; } =20 - if (i =3D=3D 0x1f && j =3D=3D 64) { - break; - } - c->function =3D i; c->flags =3D KVM_CPUID_FLAG_SIGNIFCANT_INDEX; c->index =3D j; --=20 2.27.0