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Tue, 29 Sep 2026 12:20:53 -0700 (PDT) Received: from ziepe.ca ([130.41.10.202]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-533699882absm2723431cf.4.2026.09.29.12.20.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2026 12:20:52 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1xBdNj-00000009r7r-3fqI; Tue, 29 Sep 2026 16:20:51 -0300 Date: Tue, 29 Sep 2026 16:20:51 -0300 From: Jason Gunthorpe To: Yeoreum Yun Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Catalin Marinas , Will Deacon , Suzuki Poulose , Steven Price , Sami Mujawar , thuth@redhat.com, Jiri Pirko Subject: Re: [PATCH v2 0/3] arm64/virt: Add Arm CCA measurement register support Message-ID: <20260929192051.GN163130@ziepe.ca> References: <20260929-arm_cca_mr-v2-0-1d98bba187fd@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260929-arm_cca_mr-v2-0-1d98bba187fd@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260929_202057_001641_CA53DE80 X-CRM114-Status: GOOD ( 12.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Sep 29, 2026 at 05:57:46PM +0100, Yeoreum Yun wrote: > This series adds support for Arm Confidential Compute Architecture (CCA) > measurement registers in the Linux kernel, enabling guest Realms to > access, extend, and expose measurement values for attestation and runtime > integrity tracking. I'd prefer not to add any more tsm_measurements users until we bottom out on the attestation subsystem.. Mainly because it establishes uAPI that doesn't really do everything people need from this stuff.. The actual code seemed reasonble from a quick glance. Jason