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a="15462615" X-IronPort-AV: E=Sophos;i="6.08,250,1712646000"; d="scan'208";a="15462615" X-CSE-ConnectionGUID: U3Jio1OsTL2sm4e7jE6NdQ== X-CSE-MsgGUID: BsW4ZC82Rm6htGs+6aPKrA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,250,1712646000"; d="scan'208";a="41788935" From: Zhao Liu To: Paolo Bonzini , Igor Mammedov Cc: qemu-devel@nongnu.org, Zhao Liu Subject: [PATCH 1/3] target/i386/cpu: Use hex mask to check for valid cache CPUID leaf Date: Wed, 19 Jun 2024 22:42:13 +0800 Message-Id: <20240619144215.3273989-2-zhao1.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240619144215.3273989-1-zhao1.liu@intel.com> References: <20240619144215.3273989-1-zhao1.liu@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=192.198.163.18; envelope-from=zhao1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -45 X-Spam_score: -4.6 X-Spam_bar: ---- X-Spam_report: (-4.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.144, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1718807288071100009 Content-Type: text/plain; charset="utf-8" Hexadecimal mask is more intuitive comparing to decimal. Therefore convert the mask of bits 00-04 to hexadecimal value. Signed-off-by: Zhao Liu --- target/i386/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 365852cb99e1..c4d4048ec32a 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -6452,7 +6452,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, = uint32_t count, * QEMU has its own number of cores/logical cpus, * set 24..14, 31..26 bit to configured values */ - if (*eax & 31) { + if (*eax & 0x1f) { int host_vcpus_per_cache =3D 1 + ((*eax & 0x3FFC000) >> 14= ); =20 *eax &=3D ~0xFC000000; --=20 2.34.1