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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id w1sm3796430wro.72.2020.02.07.06.34.22 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Feb 2020 06:34:22 -0800 (PST) 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=W0Qpa2hYGMFldDVElC0iTJqXAjKbmW/746HYct4hLys=; b=N7aYYpbUvUZz765PoDU/8I01uaKGtR7VEYxW4PL/8sB9Z2Bw7EDQZNJRBXY2+pTQSi +yXXaKbsn3gcvkrnnCtfn4bNuT7K0cPsFrFmz4+yuWCoItv3K6CRpUJVOwJB3+NLyR3r mD88gmqwq7WdnG7octmZcq+/BKyUKPoMyBeyBjDLLP6uyDM6znrYsiaig1kS5BfU1BGa mqth5w8sp867rC3IaY8jgzgEsi4Bx8mKu4jgt7RZNWZb4dEW2Cbvj6mmA1T1napJb3Kd pCYNINg4VEl9tQ8OSH2nzyDphjjFfa/NrgY4IZMFrVLGYAZlO5Awq33+vPrDl6LgKJ6S FlRg== 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=W0Qpa2hYGMFldDVElC0iTJqXAjKbmW/746HYct4hLys=; b=RFpNN6CSDDSCYIt0f3VbIUKoViTYu+MQOOVgak2Iy8z/pqPmSpmye47SCabXXyB+VL J8dQA9cknUQ1ENtsPsxeTWfDIcEqhpwf4DsNHM4Arhm+VT/ect/tsPiWh68jtCwNZv8q OSR7uBGXKLIvci4ur8/gCbxSwX2APbEVgsLVoaGPWMcyElmCdPfo+GDgh2DHM4SYzbJQ ZMX00z/tkt9KQ6azeo3l7+uksjaUEMxVXyXBGur2ac+EHqGXzKnRKPal3Bu07kjMwUuo oGrVYRf4pCRfoHGNWPNFXJxIYffzjtzsrZ0ZvXlv+aI3D1gLe27aMhOuW+FRiaNj/WpO DjMw== X-Gm-Message-State: APjAAAVps37WtVWL0j8oNDdkzta0mUDAHAwo4XaL3K5U9Ja2JWlkQ0Ia SyJON0ozZYvBa9j+9eHM8cBx8Agq/8k= X-Google-Smtp-Source: APXvYqymwiu5otYA1K+6ClI0OIRFmAi5o19rILdhAkUBcxvX7+qV8TGKOcqP+dvZQnY/NbJlQ/lqHA== X-Received: by 2002:a1c:5445:: with SMTP id p5mr4655199wmi.75.1581086062881; Fri, 07 Feb 2020 06:34:22 -0800 (PST) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 35/48] target/arm: check TGE and E2H flags for EL0 pauth traps Date: Fri, 7 Feb 2020 14:33:30 +0000 Message-Id: <20200207143343.30322-36-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200207143343.30322-1-peter.maydell@linaro.org> References: <20200207143343.30322-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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::32a 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) From: Alex Benn=C3=A9e According to ARM ARM we should only trap from the EL1&0 regime. Tested-by: Alex Benn=C3=A9e Reviewed-by: Peter Maydell Signed-off-by: Alex Benn=C3=A9e Signed-off-by: Richard Henderson Message-id: 20200206105448.4726-35-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/pauth_helper.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/target/arm/pauth_helper.c b/target/arm/pauth_helper.c index e0c401c4a9e..9746e32bf81 100644 --- a/target/arm/pauth_helper.c +++ b/target/arm/pauth_helper.c @@ -371,7 +371,10 @@ static void pauth_check_trap(CPUARMState *env, int el,= uintptr_t ra) if (el < 2 && arm_feature(env, ARM_FEATURE_EL2)) { uint64_t hcr =3D arm_hcr_el2_eff(env); bool trap =3D !(hcr & HCR_API); - /* FIXME: ARMv8.1-VHE: trap only applies to EL1&0 regime. */ + if (el =3D=3D 0) { + /* Trap only applies to EL1&0 regime. */ + trap &=3D (hcr & (HCR_E2H | HCR_TGE)) !=3D (HCR_E2H | HCR_TGE); + } /* FIXME: ARMv8.3-NV: HCR_NV trap takes precedence for ERETA[AB]. = */ if (trap) { pauth_trap(env, 2, ra); --=20 2.20.1