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([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id s13sm39369852wra.53.2021.01.19.10.14.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 Jan 2021 10:14:53 -0800 (PST) Subject: Re: [PATCH v2] target/i386/hvf: add vmware-cpuid-freq cpu feature To: Roman Bolshakov , yaroshchuk2000@gmail.com References: <20210113205221.32308-1-yaroshchuk2000@gmail.com> <20210114194703.134333-1-yaroshchuk2000@gmail.com> From: Paolo Bonzini Message-ID: <827a0bdd-b897-3354-b7d6-53d9e7f90454@redhat.com> Date: Tue, 19 Jan 2021 19:14:52 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=63.128.21.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.195, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: Richard Henderson , qemu-devel@nongnu.org, Cameron Esfahani , Eduardo Habkost Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 19/01/21 19:01, Roman Bolshakov wrote: >> + switch (index) { >> + case 0x40000000: >> + memcpy(signature, "TCGTCGTCGTCG", 12); /* QEMU Signature */ > Hi Vladislav, > > TCG belongs to TCG accel identification, for HVF it should be > HVFHVFHVFHVF. You can use the KVM identification just fine, as long as you comply with the rest of the KVM CPUID specification. Paolo