Message ID | 20190429170030.11323-5-peter.maydell@linaro.org |
---|---|
State | Accepted |
Commit | 5bcf8ed9401e62c73158ba110864ee1375558bf7 |
Headers | show
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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id a13sm36896wmj.39.2019.04.29.10.00.36 for <qemu-devel@nongnu.org> (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 29 Apr 2019 10:00:37 -0700 (PDT) From: Peter Maydell <peter.maydell@linaro.org> To: qemu-devel@nongnu.org Date: Mon, 29 Apr 2019 17:59:52 +0100 Message-Id: <20190429170030.11323-5-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190429170030.11323-1-peter.maydell@linaro.org> References: <20190429170030.11323-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::333 Subject: [Qemu-devel] [PULL 04/42] target/arm: Make sure M-profile FPSCR RES0 bits are not settable X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 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: <http://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+patch=linaro.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patch=linaro.org@nongnu.org> |
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target-arm queue
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diff --git a/target/arm/vfp_helper.c b/target/arm/vfp_helper.c index 2468fc16294..7a46d991486 100644 --- a/target/arm/vfp_helper.c +++ b/target/arm/vfp_helper.c @@ -105,6 +105,14 @@ void HELPER(vfp_set_fpscr)(CPUARMState *env, uint32_t val) val &= ~FPCR_FZ16; } + if (arm_feature(env, ARM_FEATURE_M)) { + /* + * M profile FPSCR is RES0 for the QC, STRIDE, FZ16, LEN bits + * and also for the trapped-exception-handling bits IxE. + */ + val &= 0xf7c0009f; + } + /* * We don't implement trapped exception handling, so the * trap enable bits, IDE|IXE|UFE|OFE|DZE|IOE are all RAZ/WI (not RES0!)