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Tue, 01 Jul 2025 02:55:57 -0700 (PDT) MIME-Version: 1.0 References: <20250623121845.7214-1-philmd@linaro.org> <20250623121845.7214-13-philmd@linaro.org> In-Reply-To: <20250623121845.7214-13-philmd@linaro.org> From: Peter Maydell Date: Tue, 1 Jul 2025 10:55:44 +0100 X-Gm-Features: Ac12FXxZuvpkYlYeLubDALCRe9b49Ny7Qj6d2gQPpOSrpzaCFQmZmZpMM8bnYto Message-ID: Subject: Re: [PATCH v3 12/26] target/arm: Restrict system register properties to system binary To: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= Cc: qemu-devel@nongnu.org, Leif Lindholm , qemu-arm@nongnu.org, =?UTF-8?Q?Daniel_P=2E_Berrang=C3=A9?= , Roman Bolshakov , Paolo Bonzini , Alexander Graf , Bernhard Beschow , John Snow , Thomas Huth , =?UTF-8?B?TWFyYy1BbmRyw6kgTHVyZWF1?= , kvm@vger.kernel.org, Eric Auger , Cameron Esfahani , Cleber Rosa , Radoslaw Biernacki , Phil Dennis-Jordan , Richard Henderson , =?UTF-8?B?QWxleCBCZW5uw6ll?= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2607:f8b0:4864:20::1131; envelope-from=peter.maydell@linaro.org; helo=mail-yw1-x1131.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Mon, 23 Jun 2025 at 13:19, Philippe Mathieu-Daud=C3=A9 wrote: > > Do not expose the following system-specific properties on user-mode > binaries: > > - psci-conduit > - cntfrq (ARM_FEATURE_GENERIC_TIMER) > - rvbar (ARM_FEATURE_V8) > - has-mpu (ARM_FEATURE_PMSA) > - pmsav7-dregion (ARM_FEATURE_PMSA) > - reset-cbar (ARM_FEATURE_CBAR) > - reset-hivecs (ARM_FEATURE_M) > - init-nsvtor (ARM_FEATURE_M) > - init-svtor (ARM_FEATURE_M_SECURITY) > - idau (ARM_FEATURE_M_SECURITY) I guess these are user-accessible via "qemu-arm -cpu max,cntfrq=3D ..." syntax? Makes sense to not expose them, they won't do anything sensible. thanks -- PMM