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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id 24sm4337505oij.58.2021.04.07.09.29.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Apr 2021 09:29:28 -0700 (PDT) Received: (nullmailer pid 3856511 invoked by uid 1000); Wed, 07 Apr 2021 16:29:27 -0000 Date: Wed, 7 Apr 2021 11:29:27 -0500 From: Rob Herring To: Nick Kossifidis Cc: linux-riscv@lists.infradead.org, palmer@dabbelt.com, paul.walmsley@sifive.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 0/5] RISC-V: Add kexec/kdump support Message-ID: <20210407162927.GA3836121@robh.at.kernel.org> References: <20210405085712.1953848-1-mick@ics.forth.gr> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210405085712.1953848-1-mick@ics.forth.gr> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210407_172930_924758_691C0DC2 X-CRM114-Status: GOOD ( 14.30 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Mon, Apr 05, 2021 at 11:57:07AM +0300, Nick Kossifidis wrote: > This patch series adds kexec/kdump and crash kernel > support on RISC-V. For testing the patches a patched > version of kexec-tools is needed (still a work in > progress) which can be found at: > > https://riscv.ics.forth.gr/kexec-tools-patched.tar.xz > > v3: > * Rebase on newer kernel tree > * Minor cleanups > * Split UAPI changes to a separate patch > * Improve / cleanup init_resources > * Resolve Palmer's comments > > v2: > * Rebase on newer kernel tree > * Minor cleanups > * Properly populate the ioresources tre, so that it > can be used later on for implementing strict /dev/mem > * Use linux,usable-memory on /memory instead of a new binding Where? In any case, that's not going to work well with EFI support assuming like arm64, 'memory' is passed in UEFI structures instead of DT. That's why there's now a /chosen linux,usable-memory-ranges property. Isn't the preferred kexec interface the file based interface? I'd expect a new arch to only support that. And there's common kexec DT handling for that pending for 5.13. Rob _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv