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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3b471b96534sm2816857f8f.48.2025.07.04.09.25.27 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jul 2025 09:25:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1751646328; x=1752251128; 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=HNTx2jUTtiz41AJHeGve8gVUecgpPInN9pSYsT5KM9g=; b=fi3QLrK+5OzjTZeXkZJRATP4WBmmmtUqVR+pLEQ7D+Fr+DHL36BeUqa8YD6JWBqRfM Q4aQde8U8Va/C8vnGuRUfsd7RpJXsbhyNSkF/TRl7h8fw+kQ6G5hzjyYgYLPf9L1g95g x4O2Lf/GqXZPxMiXVA8Jl7tLKfyqvERBJ135WpkJM2ltiLibsZHxxKrzeEfYYtGevJdu jKvOiAne0hcXqL934ElutfaHD54LwjMpW+BSTU+AX8l1sg3L0MtMZGi4KsMx6K9+ck2d gHcq0ZBfS0qYRSc5iI4Wenod3aJQ572uZFCBba8TPOWPDAHBYjU9y2eqJzSkc4F85X9u OgLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751646328; x=1752251128; 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=HNTx2jUTtiz41AJHeGve8gVUecgpPInN9pSYsT5KM9g=; b=ZIYvJj3hXANTMzw5vkn9FA4TmIyZianUpMWdXf7lx6XsX3gyHM9g2BtefW/4bZHDF9 EX4WHPMIBfmxJPVe/7aCOmo5ddHNxfdF+eTeR08I6drbNEVmPu3dsurSnO8sUNaGbcdX 42H3M9q1+qcaMwcCT7Ch5FzjmCBEH7irdDlajEoMVOZ8boHlHMzEAc+iitD/us3/OrDy AnfUTklw2ozZz4H2uE++JxKB92Mfv9gdx1Han+6duF/tmnkGUKzbRIuHBvWxwhT76oEY xnDZOWJpmFWHjBs2qiENkeq4JaIC0ImaCw8sV5JiXLYCCxSCx9r8TLXRLkyO1O3vao8W YJJA== X-Gm-Message-State: AOJu0YxHKb3Tyv3P4Df0vOKIOTWh5HwZ0k4TIijHYM0gGOE3xQCIP/za N2xL9/hM1lSaRfkUCgnmlaqQ8uYXKxs6joDBS0PGCP0X6B6y61trA1ArCkVeADInw/Mq71H14Wi f03xU X-Gm-Gg: ASbGncttrjopITgzkIX66jqJQ7chvj31jOMgLult1DzvqiST/YAfJV0yssgj4vV/tTg P7+ncbdTZDP/2q6Ikf3UGlSBPZ3OB4HjM4vn/jn2+50SY+7U8/tm78qJ2Nz5W+ZgpHjpUMHIWwD 9O1fOHHodVK/sCQ0VP4M9mwULZ2nIGMLy55t4udmJvaEKqCPXhfEYTRkcuPcDSdBxd023T4fkZO 9tvMOYKZTTpwcISjqFSbc53+QIfhKGW3EhnyrZhz0Dx3eJ1gFPFskpTOvJHtSzyRS/d1lU0I6QZ 0iG20afbJx03lsIhD0pfAakvkRwk+Rfk/QkXhE+dMD2JE+/6G1RVNq1SsBOGCLjAAHUe X-Google-Smtp-Source: AGHT+IEPnC3Y02ydmyZoj0cBvEhdKJ1TPz+UidnRra3pIrDh5tqxZD2CYEAGkoSKtLj059JHkOAIhg== X-Received: by 2002:a05:600c:4f49:b0:450:d30e:ff96 with SMTP id 5b1f17b1804b1-454b8b37c22mr12947105e9.0.1751646327896; Fri, 04 Jul 2025 09:25:27 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 027/119] target/arm: Add ZT0 Date: Fri, 4 Jul 2025 17:23:27 +0100 Message-ID: <20250704162501.249138-28-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250704162501.249138-1-peter.maydell@linaro.org> References: <20250704162501.249138-1-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::436; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x436.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: 1751646376546116600 Content-Type: text/plain; charset="utf-8" From: Richard Henderson This is a 512-bit array introduced with SME2. Save it only when ZA is in use. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20250704142112.1018902-16-richard.henderson@linaro.org Signed-off-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 c6041a93578..cbc20434836 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -716,6 +716,9 @@ 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 6e73368ef97..6986915bee8 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