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[97.113.13.231]) by smtp.gmail.com with ESMTPSA id n9sm2540875pfq.53.2019.05.14.13.14.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 14 May 2019 13:14:57 -0700 (PDT) To: Andrea Bolognani , Andrew Jones References: <20190512083624.8916-1-drjones@redhat.com> <9f57bfa56715b3128c1823150457ddb866e6054c.camel@redhat.com> <20190513123656.6iu7ebu7zucn5mxt@kamzik.brq.redhat.com> <20190514125329.mi7ctaoujirwm6gs@kamzik.brq.redhat.com> <1857a74ef586a4e41d93b184498cfcf6c2927cec.camel@redhat.com> From: Richard Henderson Openpgp: preference=signencrypt Message-ID: <1cd94ba6-2bfa-645e-1034-dd05e8a77000@linaro.org> Date: Tue, 14 May 2019 13:14:54 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <1857a74ef586a4e41d93b184498cfcf6c2927cec.camel@redhat.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::52f Subject: Re: [Qemu-devel] [PATCH 00/13] target/arm/kvm: enable SVE in guests X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, qemu-devel@nongnu.org, armbru@redhat.com, qemu-arm@nongnu.org, alex.bennee@linaro.org, Dave.Martin@arm.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 5/14/19 9:03 AM, Andrea Bolognani wrote: > On Tue, 2019-05-14 at 14:53 +0200, Andrew Jones wrote: >> We already have sve-max-vq, so I'm not sure we want to rename it. > > Oh, I didn't realize that was the case. And of course it already > takes a number of quadwords as argument, I suppose? That's pretty > unfortunate :( > > Perhaps we could consider deprecating it in favor of a user-friendly > variant that's actually suitable for regular humans, like the one I > suggest above? Why is =4 less user-friendly than =512? I don't actually see "total bits in vector" as more user-friendly than "number of quadwords" when it comes to non-powers-of-2 like =7 vs =896 or =13 vs =1664. r~