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[97.113.7.119]) by smtp.gmail.com with ESMTPSA id q22sm873695pfg.170.2019.12.02.18.30.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2019 18:30:20 -0800 (PST) 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=xGOB5EQSs+V4ihLVGdiYuoWjXTTUG1ZoRZwPeuW4pjQ=; b=yWY8UutOM1aWN3UdwO8zmSuevfvz90bKyIvRBwd3shDuVuWKfjCH2V0HzTxsVjUSM8 3cgLtg2yMmrn/RoQUelFUOeKgnADU5662U7JK00wf9Ta1ayanpGkpOEK+c6a2xjBb5xA vUBzgBl2RPPkBM1gbDD+dTpi2tm8ZPurkiawJB9V5K+7D9pQ5/gTIn/F3ZECby+C6mgN NUgzrrFUc9iURDGOVKYqMbyWaGrW92Kg8/8YVB+Qt/mjVF3Mkl2+tJf+AeHCXAaFq8jQ OgD44PIb2G6ebwWfrWdm/XyJRTYQ0yaIdbuwzlrqGeufjxwFKTD7ppvfJlFcy+2JvpJb OV6w== 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=xGOB5EQSs+V4ihLVGdiYuoWjXTTUG1ZoRZwPeuW4pjQ=; b=koDpkUcTXFTEy0zkMJsZiS6y3eExhDU6YdJ+5D039KbFMhYrWOpATID1UsKARVk0sD q1lcia42tyNvA5RdGRcb3/XL7BikDKGXT9v0euJWhpTGC45OLVWUgBpFUtDjhvdicJoF UsxuiGexijnGuD+oVvVYaysx+v554oxzmmLDtnqwnKi8d+fEUss8Z8ni3Nrtjq+chTXd pDkx6rcF7QIj8AIdtdqo1Lu70cOqeRh4av1kz+X1R8lwRhmjc9qAfnakbRwATuoL/4Bp XtqNUA1cbyCsDbsF7yXkAoauLuzzKIGmm9wHZrNtY45eVJ6Q3FFDOQrsIYveojPzS+UM Pmrg== X-Gm-Message-State: APjAAAXns7g6GzBXYUjGqPlEYLBjztLx+ny8gmSgQoNcehOqGDNhtCiz jCHcLYuok2opQmRrscq4VeqSzg1wm30= X-Google-Smtp-Source: APXvYqzjRnTMEQQPxOnOWcId9GNa20E/wvrg4sePmR50nyWqgGKkUZIatCUPJVIZZ8IOJX3VJ1w24g== X-Received: by 2002:a17:902:8508:: with SMTP id bj8mr2625098plb.178.1575340221229; Mon, 02 Dec 2019 18:30:21 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 33/40] target/arm: check TGE and E2H flags for EL0 pauth traps Date: Mon, 2 Dec 2019 18:29:30 -0800 Message-Id: <20191203022937.1474-34-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191203022937.1474-1-richard.henderson@linaro.org> References: <20191203022937.1474-1-richard.henderson@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: 2607:f8b0:4864:20::1043 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, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: Alex Benn=C3=A9e According to ARM ARM we should only trap from the EL1&0 regime. Signed-off-by: Alex Benn=C3=A9e Signed-off-by: Richard Henderson Reviewed-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 42c9141bb7..c3cb7c8d52 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 2.17.1