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[97.126.123.70]) by smtp.gmail.com with ESMTPSA id c7sm4463721pfp.98.2020.02.28.17.54.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Feb 2020 17:54:42 -0800 (PST) Subject: Re: [PATCH v3 1/2] configure: add configure option avx512f_opt To: Robert Hoo , qemu-devel@nongnu.org, pbonzini@redhat.com, laurent@vivier.eu, philmd@redhat.com, berrange@redhat.com References: <1582856696-45663-1-git-send-email-robert.hu@linux.intel.com> <1582856696-45663-2-git-send-email-robert.hu@linux.intel.com> From: Richard Henderson Message-ID: <3d1dde69-9b08-42bd-4241-64783df77ec2@linaro.org> Date: Fri, 28 Feb 2020 17:54:40 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <1582856696-45663-2-git-send-email-robert.hu@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::1044 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: robert.hu@intel.com, chao.p.peng@intel.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 2/27/20 6:24 PM, Robert Hoo wrote: > If it is enabled, config-host.mak will have CONFIG_AVX512F_OPT defined. > > AVX512F instruction set is available since Intel Skylake, and can be enabled in > compiling with -mavx512f. > More info: > https://software.intel.com/sites/default/files/managed/c5/15/architecture-instruction-set-extensions-programming-reference.pdf > > Signed-off-by: Robert Hoo > --- > configure | 41 +++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 41 insertions(+) Reviewed-by: Richard Henderson r~