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[97.126.117.207]) by smtp.gmail.com with ESMTPSA id v63sm52360799pfv.174.2019.07.25.11.28.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 25 Jul 2019 11:28:39 -0700 (PDT) To: =?UTF-8?Q?Alex_Benn=c3=a9e?= , qemu-devel@nongnu.org References: <20190719210326.15466-1-richard.henderson@linaro.org> <20190719210326.15466-17-richard.henderson@linaro.org> <87v9vqyuji.fsf@linaro.org> From: Richard Henderson Openpgp: preference=signencrypt Message-ID: <679a72f9-55ef-8e21-dbdd-07f2598000c3@linaro.org> Date: Thu, 25 Jul 2019 11:28:37 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <87v9vqyuji.fsf@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::644 Subject: Re: [Qemu-devel] [PATCH for-4.2 16/24] target/arm: Add regime_has_2_ranges 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: peter.maydell@linaro.org, beata.michalska@linaro.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 7/25/19 8:59 AM, Alex Bennée wrote: > Can you elucidate what we mean by having 2 ranges? Both positive and negative virtual addresses, with the hole in the middle, controlled by two translation tables. In the current (E.a) manual, see D.5.2.1 page D5-2516, in the (sub-)section titled "About address translation and supported input address ranges". It is summarized in table D5-1. r~