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([177.146.137.168]) by smtp.gmail.com with ESMTPSA id 00721157ae682-79a7141eb65sm28159417b3.21.2026.03.18.19.26.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 19:26:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1773887196; x=1774491996; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=DKkANjLZg1ioAK7kFziWCBF+Rd7tkHlYjXgtjul6Zjg=; b=MGCiiPxEHjBVEbVePiv3NpSD5HJr5ykm90U4JZDrxPkiTcIOJIUP7yX21kvut4hM4A quqCvi9r/92mHmuxNyI7et2un/X5Grnk6Np0aoOoyRzyGmeD9EmneYG5itFvx5X+XJcA C/TUJEPUntO4Eh+2igQ40UexikzksbZx5CTtL+FpfplTHnFGt7F4t0AsnP0sBifmSlyb nuVJjqUZyG0CSaluDNlvW2h/hqVFGUm4rFjylzE2ZyZ39Eq1CnZCSsovN784pri8kPpj PozXNrq0IyYk5MVP74Xud0IYHzEHZxzixBfhC9S2RaeNmq6D5G4RzO6eOJCyZoOFdDmy bLbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773887196; x=1774491996; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=DKkANjLZg1ioAK7kFziWCBF+Rd7tkHlYjXgtjul6Zjg=; b=Y7sb8g+YuKeWwZLx1MYcvN8G/78NwMdxAIASNrITRTElzre0CHEQG8YoWYK0CxBGyb rEt/8vFvotYSkEkdPFs77z+B5l2RQGlYvnO0Uj1VtVJY+6BBNTfZprqeLpn3hFcy6zzA prOJPV3KQb+xxAwLey3ArE6Z1R832c8PoBEf9sotv9U3QImY+go/bNyHltQeeKdk6iGk 46SYNECZRzprgm3rvGuP/JJCaHhvOgOpNQtJw+eLgXIrmzd8rRrpHDllFwZxqdDjDC3I v2zzHY6O0bIxXyZb0gbctodeDWFFpub5QMMnCgwbGKxCUB5N97U5dzcogTOgE7hpIwVN cb0A== X-Gm-Message-State: AOJu0YxXgSDImRjRDIGOz+d+NUxpEuDORLtX+/zmiZjqbnRKvfFz74bk IbIL/gjgw/f/O5101y3ZtLXIrg6EMvlATXjzLkf4W9W+zOb2VrXK6cxpHsb2sQhpfTPXrxsqqrc vrf0LSYU= X-Gm-Gg: ATEYQzzGum1P1P8vW/yC8Dt8Kiqs1VHEg24KxKFQQwo5ggVGcUWenbzKn5yIKVP6Uyt dA4xl/jlxhw1kaSOTtQDl2MwudgDzChCV2I5LI/rGsA1HrRtJ17tPCAlLROJtSwvbZ+0TDJiGib D2ed8PEG188yBcEKoCNdxpPr+1dyZqH4gCcq0uszobUoiTr/dJL7K9OXJZTgkOxdIDEwkNGN/U/ VNEgZLLOPdi1nif9/Z/WlxidiUWapW+IV55yDATyL+9jt9LhalRMIz+Dr+MHcangHvtbJCJouE2 QxQhkeEfAwkeaKtcpgRzn+cQmx8zGHgIC3bRAjwOITqKmg9i/kOw8OIC0N6mjceCBFKAYU2pyA+ uMcVBwN0zTJExNsKomn190JQ7Jf6eRNwKhSrqwrWPB3z8XynuOP6HMj1iboY8I49fR0enYTbnAu kFE++SS66l2fYy2IJu2BIIRMqhnlny8Q== X-Received: by 2002:a05:690c:9988:b0:79a:6eda:b24e with SMTP id 00721157ae682-79a71ade8bamr60109677b3.33.1773887196291; Wed, 18 Mar 2026 19:26:36 -0700 (PDT) From: Gustavo Romero To: qemu-devel@nongnu.org, qemu-arm@nongnu.org, richard.henderson@linaro.org Cc: alex.bennee@linaro.org, peter.maydell@linaro.org, gustavo.romero@linaro.org Subject: [RFC PATCH 4/7] target/arm/cpu: Add FEAT_MEC object properties Date: Wed, 18 Mar 2026 23:23:32 -0300 Message-Id: <20260319022335.22523-5-gustavo.romero@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260319022335.22523-1-gustavo.romero@linaro.org> References: <20260319022335.22523-1-gustavo.romero@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=2607:f8b0:4864:20::112a; envelope-from=gustavo.romero@linaro.org; helo=mail-yw1-x112a.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 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1773887319354158500 Content-Type: text/plain; charset="utf-8" Add 'mec' and 'mec-page' object properties to the Arm CPU object that allows setting at machine level the memories used by FEAT_MEC. Signed-off-by: Gustavo Romero Reviewed-by: Richard Henderson --- target/arm/cpu.c | 20 ++++++++++++++++++++ target/arm/cpu.h | 4 ++++ 2 files changed, 24 insertions(+) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 7e3e84b4bb..98bb559eb2 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -1542,6 +1542,21 @@ static void arm_cpu_post_init(Object *obj) OBJ_PROP_LINK_STRONG); } } + + if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64) && + cpu_isar_feature(aa64_mec, cpu)) { + + object_property_add_link(obj, "mec", TYPE_MEMORY_REGION, + (Object **)&cpu->mec, + qdev_prop_allow_set_link_before_realize, + OBJ_PROP_LINK_STRONG); + + object_property_add_link(obj, "mec-page", + TYPE_MEMORY_REGION, + (Object **)&cpu->mec_page, + qdev_prop_allow_set_link_before_realize, + OBJ_PROP_LINK_STRONG); + } #endif qdev_property_add_static(DEVICE(obj), &arm_cpu_cfgend_property); } @@ -2169,6 +2184,11 @@ static void arm_cpu_realizefn(DeviceState *dev, Erro= r **errp) } } =20 + if (cpu->mec !=3D NULL) { + cpu_address_space_init(cs, ARMASIdx_MEC, "cpu-tuple-memory", cpu->= mec); + cpu_address_space_init(cs, ARMASIdx_MEC_PAGE, "cpu-pseudo-encrypte= d-page", cpu->mec_page); + } + /* No core_count specified, default to smp_cpus. */ if (cpu->core_count =3D=3D -1) { cpu->core_count =3D smp_cpus; diff --git a/target/arm/cpu.h b/target/arm/cpu.h index ebf4e4e01c..a91db25d68 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -977,6 +977,10 @@ struct ArchCPU { MemoryRegion *tag_memory; MemoryRegion *secure_tag_memory; =20 + /* MemoryRegion use by FEAT_MEC. */ + MemoryRegion *mec; + MemoryRegion *mec_page; + /* For v8M, pointer to the IDAU interface provided by board/SoC */ Object *idau; =20 --=20 2.34.1