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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id w1sm3796430wro.72.2020.02.07.06.34.10 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Feb 2020 06:34:10 -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=V+BesusINKYFRKNPKbDWdPMHw6E3nkQRWe8lVcNiO3Q=; b=NS0enqB6E9uGMp438UOfRLfsS6MpHbJ/c3ud1NqE9auou2dgIxxCjwVLJDv2ezPkpM N46Z+30931HxkIBfM4MUqwLFuKyqBa4IZW92OD4TB1Tdm4HMXmRv+w1Em8xk6nrSAQnZ VNE5D47lzDuOxlE7zsBWqm94QbpKiB0lyuwpNe2XCpDgwQelNw4bC+HU6maFpwtTCTyy 2M4cMvKJLzKB89yjXnuKm1AcoqPoSyqsyY5UdHtrrp1HrqaTggKPvt3t4jyGE2sQQtvy 5SFXTxzUV9R1XDEmg9UNYjQtXUGGzxeJNE51ENwso7EG1tNeRwP6P74s0KIf49cgRtQw TAFw== 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=V+BesusINKYFRKNPKbDWdPMHw6E3nkQRWe8lVcNiO3Q=; b=p4R1u+3JeyFsAGwnCqOkCpcTk63aFb8FzZHw5ubusY8zRCVX0pAUkRNCxDpc0yAgvy AhVkL2PBMbansYyTigLhbnoH6A/SDvn67ui0GtXXvY9BkVjMhTeSaUv6uuDutP3WZS/D AvbKlXmDMMHjy7gHd00lbjBp9FivLaE+QJnftTb+0pUOzkzm3+5P7hJgShu6jx8K4Z2s C8kx/Ye2OxNZE6aTF4pu6hvEn2dumT6Ef3nCuOgvz6aeNMpfhDNru976G1jEptmfxLS5 4EHrwuP5Bkkgo+W2SD/+lMateYl2LVkw6uAiCGdvwmHsVmN9WYC/GrYR7vdlAHq9AkVR qGKQ== X-Gm-Message-State: APjAAAWN6pkEw89gEWb3UgNzXMJ0TpoWPbdycPxOyH3+58zcY0tDpaip sjCf+eEQ0H1fVycI8O5FbuR+XFPowzs= X-Google-Smtp-Source: APXvYqxzaxaDk5A5kUr5wFs2MVmXxaGuJPBR6CSzRFY4lOHigAfBA3sCD/RC60RPORN34A+teruxzA== X-Received: by 2002:adf:ef4c:: with SMTP id c12mr5165431wrp.203.1581086051375; Fri, 07 Feb 2020 06:34:11 -0800 (PST) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 24/48] target/arm: Update aa64_zva_access for EL2 Date: Fri, 7 Feb 2020 14:33:19 +0000 Message-Id: <20200207143343.30322-25-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::42a 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: Richard Henderson The comment that we don't support EL2 is somewhat out of date. Update to include checks against HCR_EL2.TDZ. Tested-by: Alex Benn=C3=A9e Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Richard Henderson Message-id: 20200206105448.4726-24-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/helper.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index e4f368d96b6..e41bece6b58 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -4159,11 +4159,27 @@ static void tlbi_aa64_ipas2e1is_write(CPUARMState *= env, const ARMCPRegInfo *ri, static CPAccessResult aa64_zva_access(CPUARMState *env, const ARMCPRegInfo= *ri, bool isread) { - /* We don't implement EL2, so the only control on DC ZVA is the - * bit in the SCTLR which can prohibit access for EL0. - */ - if (arm_current_el(env) =3D=3D 0 && !(env->cp15.sctlr_el[1] & SCTLR_DZ= E)) { - return CP_ACCESS_TRAP; + int cur_el =3D arm_current_el(env); + + if (cur_el < 2) { + uint64_t hcr =3D arm_hcr_el2_eff(env); + + if (cur_el =3D=3D 0) { + if ((hcr & (HCR_E2H | HCR_TGE)) =3D=3D (HCR_E2H | HCR_TGE)) { + if (!(env->cp15.sctlr_el[2] & SCTLR_DZE)) { + return CP_ACCESS_TRAP_EL2; + } + } else { + if (!(env->cp15.sctlr_el[1] & SCTLR_DZE)) { + return CP_ACCESS_TRAP; + } + if (hcr & HCR_TDZ) { + return CP_ACCESS_TRAP_EL2; + } + } + } else if (hcr & HCR_TDZ) { + return CP_ACCESS_TRAP_EL2; + } } return CP_ACCESS_OK; } --=20 2.20.1