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[142.114.143.47]) by smtp.gmail.com with ESMTPSA id w185sm3659568qkd.30.2021.08.05.13.10.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Aug 2021 13:10:50 -0700 (PDT) Message-ID: <1f4640676066862455f958e182ccae4286febe2d.camel@linaro.org> Subject: Re: [PATCH v4 7/8] hw/arm/sbsa-ref: add ITS support in SBSA GIC From: shashi.mallela@linaro.org To: Leif Lindholm , Peter Maydell Date: Thu, 05 Aug 2021 16:10:49 -0400 In-Reply-To: <20210708220546.rd7yqpsh6l7dmltu@leviathan> References: <20210602180042.111347-1-shashi.mallela@linaro.org> <20210602180042.111347-8-shashi.mallela@linaro.org> <20210603114254.mkqr4jnpfqkx3m6w@leviathan> <20210604104204.z3hhm2cxesnm2jx2@leviathan> <16db7ae4bb0b38100a08f0539ae2865c15264f1e.camel@linaro.org> <20210708194053.ar4yspiodigxwbwc@leviathan> <20210708220546.rd7yqpsh6l7dmltu@leviathan> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5 (3.28.5-16.el8) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::f31; envelope-from=shashi.mallela@linaro.org; helo=mail-qv1-xf31.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: Radoslaw Biernacki , QEMU Developers , qemu-arm Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, 2021-07-08 at 23:05 +0100, Leif Lindholm wrote: > On Thu, Jul 08, 2021 at 21:05:02 +0100, Peter Maydell wrote: > > On Thu, 8 Jul 2021 at 20:40, Leif Lindholm > > wrote: > > > I think my summary-summary would be: > > > - I think we will need to introduce a compatiblity-breaking > > > change to > > > sbsa-ref. > > > - I think we will need to have support for more than one ITS if > > > we're > > > going to be able to use QEMU to prototype real systems. > > > - I think we should then start versioning sbsa-ref (like many > > > other > > > platforms already are). And there are other reasons why I would > > > want > > > to do this. > > > - But I think it would be unfair to hold this set back for it. > > > > FWIW, I do not currently expect this series to make 6.1, so we > > have some time to get things right. > > Ah, ok. > > Then I would ideally like to see this patch add the ITS block between > Distributor and Redistributors regions. I think it makes the most > sense > for this version to match the GIC-600 layout. Have added ITS block between Distributor and Redistributors regions,with comments. Also,added sbsa versioning support (as discussed in last call) > > I am also going to rework those two remaining gicv4-ish patches based > on my acquired understanding, to be sent out post v6.1. > > And, I would like to switch the default CPU of sbsa-ref to "max" as > part of that platform versioning, now that is supported in TF-A > (from v2.5). > > / > Leif