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[97.113.8.179]) by smtp.gmail.com with ESMTPSA id m30-v6sm7355799pff.121.2018.08.08.21.22.14 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 08 Aug 2018 21:22:14 -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; bh=sg+bJaDUMi6cidJwpuhz8YqPDcihHRJslrVPGNZ4Mos=; b=Mcda91syyAH9u8d5quYw0bmttmt+OV2kvugDfqhywYgYFHt4pehwttOTFov106bZ8e CkZtCUCVBf/NPw4foPr+pKGtUnw9x9FTp1+mvL8XHLJU9n6m8Jo4eKlFjcHguVl30xMk yKt/DWhmLNRhoL5LNtxF5z8RIG116wjewYPbc= 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; bh=sg+bJaDUMi6cidJwpuhz8YqPDcihHRJslrVPGNZ4Mos=; b=bAZZef/QOoYZkmTIwQidYAb65ebM1pUxETJK4rEGSuuK9HZpLY98BZcVIlLx00H2wk ufnv/0aOsZ4IuBFzL39z0Hqydxqy7vsvep71Hx6PlBcb2wOl8U41AIfl7dNey5hF5mNG /4EJXhUsuP80ukNpH1DltuWrX6dr+oYPu6gPMle92AEcs+54wnifJy+UcPQl0w9BUVHc 8QF302bkjxKXosPxBhjS6C8kLM0GrCs9cX1uHJCzEJjq6DqK/qM4TMrtqhIIWII95YEZ r8hO9U2taPhLKgF0RbmEWYlahR1HiXErTQ4BjXCt/g6QGEBrc8R/LgllVSzegOYQG2ap dPfw== X-Gm-Message-State: AOUpUlFkILF+vfm+B+WOcZ50QLZuMoRIc+eJNon1bhL3LJnGAf+1BQ0L 5d3O2/6nAPAKRF/lO6XSaTD8vtSWS3M= X-Google-Smtp-Source: AA+uWPx9VAqZ820NqdVAzIkYicdZBcQhGz/CaOk1XQvRE5uL4MNogFl/A7xXUWK9+JKOnpKIDUMQYQ== X-Received: by 2002:a62:4b48:: with SMTP id y69-v6mr558409pfa.93.1533788535421; Wed, 08 Aug 2018 21:22:15 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 8 Aug 2018 21:21:51 -0700 Message-Id: <20180809042206.15726-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180809042206.15726-1-richard.henderson@linaro.org> References: <20180809042206.15726-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::431 Subject: [Qemu-devel] [PATCH 05/20] target/arm: Fix arm_cpu_data_is_big_endian for aa64 user-only X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: laurent.desnogues@gmail.com, 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) X-ZohoMail: RDMRC_1 RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Unlike aa32, endianness cannot be adjusted by userland in aa64. Signed-off-by: Richard Henderson --- target/arm/cpu.h | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 9526ed27cb..2d6d7d03aa 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -2709,8 +2709,6 @@ static inline bool arm_sctlr_b(CPUARMState *env) /* Return true if the processor is in big-endian mode. */ static inline bool arm_cpu_data_is_big_endian(CPUARMState *env) { - int cur_el; - /* In 32bit endianness is determined by looking at CPSR's E bit */ if (!is_a64(env)) { return @@ -2729,15 +2727,24 @@ static inline bool arm_cpu_data_is_big_endian(CPUAR= MState *env) arm_sctlr_b(env) || #endif ((env->uncached_cpsr & CPSR_E) ? 1 : 0); + } else { +#ifdef CONFIG_USER_ONLY + /* AArch64 does not have a SETEND instruction; endianness + * for usermode is fixed at compile-time. + */ +# ifdef TARGET_WORDS_BIGENDIAN + return true; +# else + return false; +# endif +#else + int cur_el =3D arm_current_el(env); + if (cur_el =3D=3D 0) { + return (env->cp15.sctlr_el[1] & SCTLR_E0E) !=3D 0; + } + return (env->cp15.sctlr_el[cur_el] & SCTLR_EE) !=3D 0; +#endif } - - cur_el =3D arm_current_el(env); - - if (cur_el =3D=3D 0) { - return (env->cp15.sctlr_el[1] & SCTLR_E0E) !=3D 0; - } - - return (env->cp15.sctlr_el[cur_el] & SCTLR_EE) !=3D 0; } =20 #include "exec/cpu-all.h" --=20 2.17.1