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([71.212.157.132]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-794e1fc9db6sm740724b3a.66.2025.10.08.14.59.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Oct 2025 14:59:58 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Pierrick Bouvier Subject: [PATCH v7 67/73] target/arm: Enable GCSPR_EL0 for read in user-mode Date: Wed, 8 Oct 2025 14:56:07 -0700 Message-ID: <20251008215613.300150-68-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251008215613.300150-1-richard.henderson@linaro.org> References: <20251008215613.300150-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::433; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x433.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=unavailable 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 Reviewed-by: Pierrick Bouvier Signed-off-by: Richard Henderson --- target/arm/cpu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 8ecf8a5e4d..98da468313 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -311,6 +311,10 @@ static void arm_cpu_reset_hold(Object *obj, ResetType type) env->cp15.mdscr_el1 |= 1 << 12; /* Enable FEAT_MOPS */ env->cp15.sctlr_el[1] |= SCTLR_MSCEN; + /* For Linux, GCSPR_EL0 is always readable. */ + if (cpu_isar_feature(aa64_gcs, cpu)) { + env->cp15.gcscr_el[0] = GCSCRE0_NTR; + } #else /* Reset into the highest available EL */ if (arm_feature(env, ARM_FEATURE_EL3)) { -- 2.43.0