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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-432bd5fe83bsm10763021f8f.38.2026.01.07.05.09.39 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 07 Jan 2026 05:09:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1767791380; x=1768396180; 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=aPewYGIgnLtmjiblgvLSQFQTyV7kU6Zgv5bBB5uTL4A=; b=ZI9rSZVXClSfkGQumOPhGvAtr2t6qQdwVf97+JO3uDyhI1MIGy7WRgPm6ecrurHeYV hTC8NfakP4NnXDThCrUPB2OAJ9zz84I2YqRNxTS20Dn6QD0F8I+BGKWBlAJRYIbiJsA5 Q2FN+uAbCublOCxGe01YJSdwM+dgVXGmLqZIeig6U4fT1m7j+cMCROAHDFqpen/jWoZc VAHbv+HdhfiXammAYN9za0Z7YNG9PF67rIVWAi9KUiQ8w0cXMMj/IccfCGr2x0gcDbwg Kfiah6H0mznvlBDXL4AIrvap+Eb49/nmdV51lqBOsorWL7FmMC+vH3mPG884jK+9DrHT J4iQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767791380; x=1768396180; 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=aPewYGIgnLtmjiblgvLSQFQTyV7kU6Zgv5bBB5uTL4A=; b=V1T6G2qZcgOqJSzWiDZitnnenuvDPXTGHu0moJwhn8F3pUa+srStLCR10C6E4uckaf d9bJz5bagJpOhMMgyudnJObjIuW4JYrTiCcsfMQ4tIwBsa+2W1SavJFVPvVVVpLhsdu3 29UPO8zIdEe8AVwJRXjvziE6Q2OOeuk5Ycale6PLzOA40WTS0lD3jvCT6YwS2Js/ZW9W HNUFnAXtVbycB8SVx8Ks4WNq00UZIcZVQqtu6an/WL4boU1dc2r61kJ8kjliXSlm0hkp mQ1ayNawaPHKCsoLrnOVPP94DP7dUHzlBH7IFxsWeWCpDtNslzTTFXGGT5cz+ub1cy5R RRzA== X-Gm-Message-State: AOJu0YwLG+fmLkMb71qnL5fdp6WEe/LhXWRpBH5+mCEuP9MwdrAjKYOA QCV+tbPoARvGpTDQXLCoU5PsntXUna8GCwhbJ0S96y9N4B0LsD0+LZZHUWk+KVmz82XujhHJdaN 3F2IecgA= X-Gm-Gg: AY/fxX7lvMjPTieL7O9CX+xSqe7TTHg7U4zS6TvCy7VPUQthTmJvKbFVoozpxqSrGpb akRaTpeqoozPJmjfbDHmQK9SytTdgbmk+rDQ7ZJjNhpTpRP3jbGpv/JTC3+9tSu+doa2Sm4/jFi uMhuqVZue7cX6s9zK6jgoIhmyMoNlXa0KO+6OH0+Wm0bEp9jIdznpYvQTlobn8k7N9ge4cMM6i9 xS7GdrcL89OHyn4A5Em3HZKdEcM0K7bBtsttyg30cs7SNuhG78yKHp9FMyzNAsP5nhDJH3eEqKd RxxULRp1JhftSHSIBaBoQzCP/5jMmBMgRflYWdBoCATXBr35wU9Ctm0JMJoiCTkayGB2IaMEPeh JslCiS2CSBLdwGkO03ZFUkEwJ16R62g+9aZgfyxa4xtJ0C+ekt8wfdZGHOI41N5qqChpehrmOWm TdFHAEzZHHHDO5vTaWBBJYG+RTNKY4u16zpgD1WGEiy1QEVgEjmwxZatrmTGGllrQvhRRnX7c= X-Google-Smtp-Source: AGHT+IGIRiNxB0NCxGXhSdKhU/qzBcpdcASeChuep496ruNNOu4gsI6rfs31nS9eYBXKnSJv2r7EEw== X-Received: by 2002:a05:600c:3b1f:b0:477:63dc:be00 with SMTP id 5b1f17b1804b1-47d84b5b3e6mr25335715e9.25.1767791380271; Wed, 07 Jan 2026 05:09:40 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, Richard Henderson , Anton Johansson , Pierrick Bouvier , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Halil Pasic , Christian Borntraeger , Eric Farman , Farhan Ali , Ilya Leoshkevich , David Hildenbrand , Thomas Huth Subject: [PATCH 13/18] target/s390x: Introduce CHSC_MAX_REQ_LEN definition Date: Wed, 7 Jan 2026 14:08:01 +0100 Message-ID: <20260107130807.69870-14-philmd@linaro.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260107130807.69870-1-philmd@linaro.org> References: <20260107130807.69870-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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 (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::335; envelope-from=philmd@linaro.org; helo=mail-wm1-x335.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: 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: 1767791396462158500 Since commit 166f1bb7968 ("s390x/ioinst: Rework memory access in CHSC instruction") the access is no more tied to the page size. Define CHSC_MAX_REQ_LEN to better express the relation with the length of the Channel Subsystem Call request. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- target/s390x/ioinst.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/target/s390x/ioinst.c b/target/s390x/ioinst.c index 2320dd4c122..d07773d14a3 100644 --- a/target/s390x/ioinst.c +++ b/target/s390x/ioinst.c @@ -398,6 +398,7 @@ typedef struct ChscResp { char data[]; } QEMU_PACKED ChscResp; =20 +#define CHSC_MAX_REQ_LEN 0x1000 #define CHSC_MIN_RESP_LEN 0x0008 =20 #define CHSC_SCPD 0x0002 @@ -660,7 +661,7 @@ void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb, uin= tptr_t ra) uint16_t len; uint16_t command; CPUS390XState *env =3D &cpu->env; - uint8_t buf[TARGET_PAGE_SIZE]; + uint8_t buf[CHSC_MAX_REQ_LEN]; =20 trace_ioinst("chsc"); reg =3D (ipb >> 20) & 0x00f; @@ -690,7 +691,7 @@ void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb, uin= tptr_t ra) s390_program_interrupt(env, PGM_OPERAND, ra); return; } - memset((char *)req + len, 0, TARGET_PAGE_SIZE - len); + memset((char *)req + len, 0, CHSC_MAX_REQ_LEN - len); res =3D (void *)((char *)req + len); command =3D be16_to_cpu(req->command); trace_ioinst_chsc_cmd(command, len); --=20 2.52.0