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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id a13sm36896wmj.39.2019.04.29.10.00.44 for <qemu-devel@nongnu.org> (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 29 Apr 2019 10:00:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=C5QzvnZSqvAHI4meFaiTxEyfhM2e9uuOHfPDatPGWdU=; b=t/CRAFLx+KIdfIfSE/4paSxRpvQPoOvlIwt0/1Zuc7Ud4ldevhlvVLeJLD4PjdYUAq JW0TnibQzkEBjzpQKZMwhMTCKXjCIYxHXzt8IA9Lohn4L3gQSbRKv3GxYhZSFB7UqaTx w0dt4IagzvcZrDL7hhHd5WvjhQROB3gpupNsMIRJDLmrxap835ltiZbMH1bp4k0falZm xbcXOP8XspLSXA31kuRf4aafVaEOsNvGsJ0xwKP7PbaZj0KktH1/hGR138wSUuLzfX1c ehisxtkAnMgJMw/M/eF30ldpZHpAwr4Bz7L2U0475FsijhzZtABeouqB3tCxcIgZns4U fqUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=C5QzvnZSqvAHI4meFaiTxEyfhM2e9uuOHfPDatPGWdU=; b=EYQn359VvvgmKAUuqjJd6Nyi/P9Lm9j7xXN7emTRdQI5ps/Znwboc/66OdrYqBzgC5 EFn/bmcWq8BgCKMcY+OFQLm2rjtlk/5DC/8HKg+uhbbXuqlVjzJ6X1iI9E/cbokWy9Dk J0KlC6ZVxZttOHHhoAbCOHwigeOoQLBhK4cRcP7WDvjK2zi1MHJn2rokWHlFc5xuvQMg Sw2KROSx8nlpaodVAiM9FvHJJ8+TnUb4GWv5nETd8v7kTf2zdgv2JmPU/R0haUZPPqfi ZAqqkuRrIytZgKngenWIBxyXvMB5UrJ6wQYgVC2gt+3/0XmCi8hEZaPq2ESl2MuzZiCk U4CA== X-Gm-Message-State: APjAAAUGt6PqI/3OQlAGUHQQNaSGLuhB3SNYxwh0GwOPWTjQOs4szCdm i3EZL/ldwI9ZhOZELGsRaTmi1l1fDoI= X-Google-Smtp-Source: APXvYqziWLyG+ytkZUkcqS96aowud8RJB6RrMVoHZQ+y6XAMGsCeU/rLVHWTJokE7QFKQPYouB9RwA== X-Received: by 2002:a7b:cc12:: with SMTP id f18mr61347wmh.40.1556557245309; Mon, 29 Apr 2019 10:00:45 -0700 (PDT) From: Peter Maydell <peter.maydell@linaro.org> To: qemu-devel@nongnu.org Date: Mon, 29 Apr 2019 17:59:58 +0100 Message-Id: <20190429170030.11323-11-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: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::334 Subject: [Qemu-devel] [PULL 10/42] target/arm: Clear CONTROL_S.SFPA in SG insn if FPU present 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+importer=patchew.org@nongnu.org> X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" If the floating point extension is present, then the SG instruction must clear the CONTROL_S.SFPA bit. Implement this. (On a no-FPU system the bit will always be zero, so we don't need to make the clearing of the bit conditional on ARM_FEATURE_VFP.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20190416125744.27770-8-peter.maydell@linaro.org --- target/arm/helper.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/arm/helper.c b/target/arm/helper.c index c3d5fe09cdc..45a9d92e505 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -8804,6 +8804,7 @@ static bool v7m_handle_execute_nsc(ARMCPU *cpu) qemu_log_mask(CPU_LOG_INT, "...really an SG instruction at 0x%08" PRIx= 32 ", executing it\n", env->regs[15]); env->regs[14] &=3D ~1; + env->v7m.control[M_REG_S] &=3D ~R_V7M_CONTROL_SFPA_MASK; switch_v7m_security_state(env, true); xpsr_write(env, 0, XPSR_IT); env->regs[15] +=3D 4; --=20 2.20.1