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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id d11-20020a5d6dcb000000b0020e6ce4dabdsm9754335wrz.103.2022.06.27.03.22.43 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Jun 2022 03:22:43 -0700 (PDT) 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=kS8fRWuNDkuiztpWqjEa2CzwXqjYXf6gCvCK68jBTPg=; b=BzMjXpTnG1r8sIb1BY8QHBRR0Xw+wDPzgOa8OO8hbe8S8eVBtqYMwcTsrAruC5dxVm 7ZDknc/n1/YeBieAqha7/x5ALaZ7TpQaWA7dfOGomL4J4tPxMcQuPyfpoSoH/ExT+bhR UwpJOpgjL4X5cOuDWwodgFl4gFkmbBpouYQ39f2a4RACKNqTZW8y06MYE1nidDz60YOZ DrnBdhzBv/cC69dr5JQuXSjjzswrC8SMsLNFPb5zF7tGFYwKYt0NX10l3BK3+cUsBJDd rhT51pJbPd1lfmFMiC77sU8AL7Gw73Ml5IjCT15z6+tTQLkFcQlBCJ4eqyuJMe1vwLOl 5vCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=kS8fRWuNDkuiztpWqjEa2CzwXqjYXf6gCvCK68jBTPg=; b=1zkwcglAIPzsOOZJWEbndUwVx5KG1mmoaix4mkDesK3gJ3kphRbFWvDTwmkdTr5gqV vLap3wyaOQN7VdLZfCyc7TW07z6cKu5Lc1hWe0FkiEpKDYkG+SXXPjGFF5yzkUSOH75t DmQGpnPV+qwvJ0ZZ9me3Qc4NawIWJ5IoiTLs/unj23VMZvBQqzHaMeQdpJv/jc97EfQK Q0vuZTxKEVaNVS/XmxYrmAQH2DCy9vJ/Kz+/VeBoZrWid4QTYK11QH9OZSNPN/uu+nsg gmcfu5vcwfGrCslHHOQ3ENnP8ukzaIuAheV75TyOaOg1JSecSNIf7hNXFoS/eHRgD3Cy Vhkw== X-Gm-Message-State: AJIora9Aalv8GS5xEx4hcIl1Y8JDtbnsOk/xLxrioRQZyGcNuqy96oLK 8WwLoskeVzT+v/oJOVp/Jv9K7st3utRA6w== X-Google-Smtp-Source: AGRyM1sTYthDP2VNi0TICMi6fmghEunuCiq4FUSLfHkKVdbJSf8ql4IvKrj6v9WEDhW0vgd92frHvA== X-Received: by 2002:adf:ecc6:0:b0:21a:3dca:4dd7 with SMTP id s6-20020adfecc6000000b0021a3dca4dd7mr11256268wro.366.1656325363718; Mon, 27 Jun 2022 03:22:43 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 07/25] target/arm: Add ARM_CP_SME Date: Mon, 27 Jun 2022 11:22:18 +0100 Message-Id: <20220627102236.3097629-8-peter.maydell@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220627102236.3097629-1-peter.maydell@linaro.org> References: <20220627102236.3097629-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::429; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x429.google.com 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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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) X-ZM-MESSAGEID: 1656325854361100001 Content-Type: text/plain; charset="utf-8" From: Richard Henderson This will be used for controlling access to SME cpregs. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20220620175235.60881-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/cpregs.h | 5 +++++ target/arm/translate-a64.c | 18 ++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index d9b678c2f17..d30758ee713 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -113,6 +113,11 @@ enum { ARM_CP_EL3_NO_EL2_UNDEF =3D 1 << 16, ARM_CP_EL3_NO_EL2_KEEP =3D 1 << 17, ARM_CP_EL3_NO_EL2_C_NZ =3D 1 << 18, + /* + * Flag: Access check for this sysreg is constrained by the + * ARM pseudocode function CheckSMEAccess(). + */ + ARM_CP_SME =3D 1 << 19, }; =20 /* diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 9a285dd1774..8f609f46b6a 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -1187,6 +1187,22 @@ bool sve_access_check(DisasContext *s) return fp_access_check(s); } =20 +/* + * Check that SME access is enabled, raise an exception if not. + * Note that this function corresponds to CheckSMEAccess and is + * only used directly for cpregs. + */ +static bool sme_access_check(DisasContext *s) +{ + if (s->sme_excp_el) { + gen_exception_insn_el(s, s->pc_curr, EXCP_UDEF, + syn_smetrap(SME_ET_AccessTrap, false), + s->sme_excp_el); + return false; + } + return true; +} + /* * This utility function is for doing register extension with an * optional shift. You will likely want to pass a temporary for the @@ -1958,6 +1974,8 @@ static void handle_sys(DisasContext *s, uint32_t insn= , bool isread, return; } else if ((ri->type & ARM_CP_SVE) && !sve_access_check(s)) { return; + } else if ((ri->type & ARM_CP_SME) && !sme_access_check(s)) { + return; } =20 if ((tb_cflags(s->base.tb) & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO))= { --=20 2.25.1