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[174.21.67.243]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7490a49ebd0sm5073744b3a.55.2025.06.21.16.50.49 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 21 Jun 2025 16:50:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1750549849; x=1751154649; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=TzQwMdaC2f0TIl2lwe12HdG9hZiKzE5709XOOuQijrs=; b=q/KJkkLOLK0dlTtUvjO6mtkGlUPrwZ6XWUJ4M6aqa4wxkD5OfFbCTiXd+KdCFmF9uJ MvTwS5VEwhTvegrkLpEGHVcGyqv9JkkE+6nX0Dht9LT2EtjBdB70eelyfn0GIpU9wn81 UeUvKUt+frENQoC7zW+4ZjrsXzNrhsRX1Cl1YyRxbS2rW5lBqDwTWdjQFqW2jb3lqcf/ 6gWJz9B5N3T1dmgIll9l099cigOsc+heseVsae5pQFl1ZN7CSay8s1cpdFSvGTkDwloQ KKJDmx/igxsvfd0gaMOCWyxLw6+Yp5b4A13mQYJ+sOeT2EzSLMdG7L+9jYKKtsuz7E3Q BiKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750549849; x=1751154649; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TzQwMdaC2f0TIl2lwe12HdG9hZiKzE5709XOOuQijrs=; b=l/hm4nKFwUsjz9g2WMoJ4RvZ6aU72gKYmju6WP/taG3ou/8gmmJxTLZxsfLsk94/Sj ST3zoefJvUt2EPcz5w0ba/LtwsPUp8/iRSoli3U1MQhHaGFxXj/aTp0ECnOp3gDPbF6A HU/wDZH5ceApmk0QqbM9QzoMdhykk2iMVt8immBGhDr8qMLzs8wOq6IfKQveVSPiqOTC ClGTVYz93zY05tUJ7fE52eOADQ8X+ElbSCT6KMNpP8ht5rVwFDSUw7ShpIKWLfUzOqoT q/TujUcnp8w/cHKyAXgtlMfQqq1bKszClvjmdKQXmdlDGQr3DcPjWEQCyetahxFT/0N8 oKng== X-Gm-Message-State: AOJu0YzU93kDFKLNnDCmXjgQRU2uU9H37HGrMJLr3+nR/sa73WM5zok1 GS4FFsAN2PkJDnFP6+I9aO2vshNzenlOTBNOkKIMiKDMalkTTQfyEA5JFF51O0daHpKDWnIlxE5 tSFZN X-Gm-Gg: ASbGncsTW7Nrbb1zdNLswDgHFWASjEH5oOnX1ifKNKwnrVDXk2LsG48dt/aEXV8gm6M q65ivx2xuESsQEmLglDirPzmHGdnkyOnw5LBG0jB8nMU+tikGyUtjszEdPclev/A0N4rBx39OEv watVBMyEaf8/Qpa2ffd9toUGrur4tYO85E1GYXvNQTb0jFSeB1SCVTQOasWlJDXXrKXEnHPkzYy efK3eYQSTDTBmoPpTLtc1mPIi3bq/06OSrHNtoE//DW+g/ufUGm3ntg3brpWiu5BUnA58uvmxhM sqOmHSeJNWurYLZ+3Y9fS6v8aVJY3DBKstz+IUidNVzByJJsXO5Ek4vB4vt7ctk16U+Ht8sFBoF 4uBalkT29dLSvw77y6icuOOfRt8zWQ/w= X-Google-Smtp-Source: AGHT+IFjJh5pvq/kaKiI8/tf+RbfZhccpUrI8EhSRyQrJX4EVxTNvsM0G8r/FQXpURwpJCpPcom8Lw== X-Received: by 2002:a05:6a00:2d8c:b0:748:ed51:1305 with SMTP id d2e1a72fcca58-7490d4f4be1mr9075226b3a.5.1750549849452; Sat, 21 Jun 2025 16:50:49 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 016/101] target/arm: Add ZT0 Date: Sat, 21 Jun 2025 16:49:12 -0700 Message-ID: <20250621235037.74091-17-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250621235037.74091-1-richard.henderson@linaro.org> References: <20250621235037.74091-1-richard.henderson@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::42f; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42f.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=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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1750550143412116600 Content-Type: text/plain; charset="utf-8" This is a 512-bit array introduced with SME2. Save it only when ZA is in use. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/cpu.h | 3 +++ target/arm/machine.c | 20 ++++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 052ca20283..465fc188d0 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -715,6 +715,9 @@ typedef struct CPUArchState { uint64_t scxtnum_el[4]; =20 struct { + /* SME2 ZT0 -- 512 bit array, with data ordered like ARMVectorReg.= */ + uint64_t zt0[512 / 64] QEMU_ALIGNED(16); + /* * SME ZA storage -- 256 x 256 byte array, with bytes in host * word order, as we do with vfp.zregs[]. This corresponds to diff --git a/target/arm/machine.c b/target/arm/machine.c index 6e73368ef9..6986915bee 100644 --- a/target/arm/machine.c +++ b/target/arm/machine.c @@ -321,6 +321,25 @@ static const VMStateDescription vmstate_za =3D { } }; =20 +static bool zt0_needed(void *opaque) +{ + ARMCPU *cpu =3D opaque; + + return za_needed(cpu) && cpu_isar_feature(aa64_sme2, cpu); +} + +static const VMStateDescription vmstate_zt0 =3D { + .name =3D "cpu/zt0", + .version_id =3D 1, + .minimum_version_id =3D 1, + .needed =3D zt0_needed, + .fields =3D (VMStateField[]) { + VMSTATE_UINT64_ARRAY(env.za_state.zt0, ARMCPU, + ARRAY_SIZE(((CPUARMState *)0)->za_state.zt0)), + VMSTATE_END_OF_LIST() + } +}; + static bool serror_needed(void *opaque) { ARMCPU *cpu =3D opaque; @@ -1096,6 +1115,7 @@ const VMStateDescription vmstate_arm_cpu =3D { &vmstate_m_security, &vmstate_sve, &vmstate_za, + &vmstate_zt0, &vmstate_serror, &vmstate_irq_line_state, &vmstate_wfxt_timer, --=20 2.43.0