Message ID | 20230222023336.915045-3-richard.henderson@linaro.org |
---|---|
State | New |
Headers | show
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[173.198.77.218]) by smtp.gmail.com with ESMTPSA id k3-20020a170902e90300b00198fde9178csm10520112pld.197.2023.02.21.18.33.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Feb 2023 18:33:41 -0800 (PST) From: Richard Henderson <richard.henderson@linaro.org> To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH v3 02/25] target/arm: Stub arm_hcr_el2_eff for m-profile Date: Tue, 21 Feb 2023 16:33:13 -1000 Message-Id: <20230222023336.915045-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230222023336.915045-1-richard.henderson@linaro.org> References: <20230222023336.915045-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62c.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: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org |
Series |
target/arm: Implement FEAT_RME
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expand
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On Wed, 22 Feb 2023 at 02:34, Richard Henderson <richard.henderson@linaro.org> wrote: > > M-profile doesn't have HCR_EL2. While we could test features > before each call, zero is a generally safe return value to > disable the code in the caller. This test is required to > avoid an assert in arm_is_secure_below_el3. > > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> > --- > target/arm/helper.c | 3 +++ > 1 file changed, 3 insertions(+) Reviewed-by: Peter Maydell <peter.maydell@linaro.org> thanks -- PMM
diff --git a/target/arm/helper.c b/target/arm/helper.c index 07d4100365..37d9267fb4 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -5788,6 +5788,9 @@ uint64_t arm_hcr_el2_eff_secstate(CPUARMState *env, bool secure) uint64_t arm_hcr_el2_eff(CPUARMState *env) { + if (arm_feature(env, ARM_FEATURE_M)) { + return 0; + } return arm_hcr_el2_eff_secstate(env, arm_is_secure_below_el3(env)); }
M-profile doesn't have HCR_EL2. While we could test features before each call, zero is a generally safe return value to disable the code in the caller. This test is required to avoid an assert in arm_is_secure_below_el3. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/helper.c | 3 +++ 1 file changed, 3 insertions(+)