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[216.160.65.90]) by smtp.gmail.com with ESMTPSA id r191sm7261663pfr.181.2020.07.24.09.38.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2020 09:38:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=lOHdNtnGRgA8GSOMatWc2CH3AkgDKMG7+oF07eCfw/c=; b=jLJPYVYh6hin9xv3K0vjweMbM5AEPCEJEr/o+Z1tvwk/0HuJDhzzRMFrnDnQumwPVG gKUlIPwyALqzN1UGy5o9cwC6aFw5fqF06i6hM/JaKfDcd4mH2azd9AMU2G7fefTurh80 ERcfxMt6BCVz78DCOLhrsuqobfAz2sBmp9kNi9fbrKN9cm8XYHxWz2IN6C724bbbfyat 0xT3YzAZi3AF5Ny2XtkjRKWPaRG6j7DHwd633v5vRfjRUfitba5JAOnP1uSE7qBZPtQA T9R2VDPc/WCr//R6oqkW+/wvbJ9kFVb+F7NFJ/mOBli/qKcYyDZMGkLUL2FVjvAsd/kn hRcg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=lOHdNtnGRgA8GSOMatWc2CH3AkgDKMG7+oF07eCfw/c=; b=SKXyZyE/z9lLvka4+fTGJ4qI8E44UZomBm7mrNyIYZaM7GDeX9kgq90U2WCMC5gk4M AxyWW5stIc9uLfsDBXPMWL4BhWfmnW19nK2GDqmPMB6zrKh1k23c6tbUufLICspaNEAU 2+YGj4B1joCL6RJ6QMVzKmLI1vtw2MMpBrOLxeAWqmUKEp8MHMysfM+CWwkcG4unoSrs rM97Sinx4Kt5sok5fkx3xMvTJ9h8fR72BMCGrTBxYVdHIrjqOg5uoP8YrWefzrMuL26L 8cA7PIR5VVnxG3L1ypgDVef/K8OacLrveVRH4IQY1/5ybgzCpBPcRpbI+P9otaZHkhwl Cwfw== X-Gm-Message-State: AOAM532HE7s/ESOfFq1NdoF3iHD3/4wV1dY0Jcdm4VlWaTZFIXgh3x4O GmjTF9o0QRdx0IqFDo+YBzJ6UBkurQM= X-Google-Smtp-Source: ABdhPJyNZdOOCHqEGa6agTWPXMiiJCseXHK9+9EC6PoMDDdJMkfVcmvedfTTiBFnblZSfJrT6JNZqA== X-Received: by 2002:a17:902:e904:: with SMTP id k4mr3448584pld.156.1595608738183; Fri, 24 Jul 2020 09:38:58 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 2/3] hw/arm/boot: Fix MTE for EL3 direct kernel boot Date: Fri, 24 Jul 2020 09:38:52 -0700 Message-Id: <20200724163853.504655-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200724163853.504655-1-richard.henderson@linaro.org> References: <20200724163853.504655-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::641; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x641.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, vincenzo.frascino@arm.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" When booting an EL3 cpu with -kernel, we set up EL3 and then drop down to EL2. We need to enable access to v8.5-MemTag tag allocation at EL3 before doing so. Reported-by: Peter Maydell Signed-off-by: Richard Henderson --- hw/arm/boot.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/arm/boot.c b/hw/arm/boot.c index c44fd3382d..3e9816af80 100644 --- a/hw/arm/boot.c +++ b/hw/arm/boot.c @@ -739,6 +739,9 @@ static void do_cpu_reset(void *opaque) if (cpu_isar_feature(aa64_pauth, cpu)) { env->cp15.scr_el3 |=3D SCR_API | SCR_APK; } + if (cpu_isar_feature(aa64_mte, cpu)) { + env->cp15.scr_el3 |=3D SCR_ATA; + } /* AArch64 kernels never boot in secure mode */ assert(!info->secure_boot); /* This hook is only supported for AArch32 currently: --=20 2.25.1