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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id h199sm18744996wme.42.2020.07.27.08.19.29 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Jul 2020 08:19:29 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 5/7] hw/arm/boot: Fix PAUTH for EL3 direct kernel boot Date: Mon, 27 Jul 2020 16:19:18 +0100 Message-Id: <20200727151920.19150-6-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200727151920.19150-1-peter.maydell@linaro.org> References: <20200727151920.19150-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::344; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x344.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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson When booting an EL3 cpu with -kernel, we set up EL3 and then drop down to EL2. We need to enable access to v8.3-PAuth keys and instructions at EL3 before doing so. Signed-off-by: Richard Henderson Message-id: 20200724163853.504655-2-richard.henderson@linaro.org Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- hw/arm/boot.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/arm/boot.c b/hw/arm/boot.c index fef4072db16..c44fd3382dd 100644 --- a/hw/arm/boot.c +++ b/hw/arm/boot.c @@ -736,6 +736,9 @@ static void do_cpu_reset(void *opaque) } else { env->pstate = PSTATE_MODE_EL1h; } + if (cpu_isar_feature(aa64_pauth, cpu)) { + env->cp15.scr_el3 |= SCR_API | SCR_APK; + } /* AArch64 kernels never boot in secure mode */ assert(!info->secure_boot); /* This hook is only supported for AArch32 currently: -- 2.20.1