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[176.184.34.173]) by smtp.gmail.com with ESMTPSA id n3-20020a05600c4f8300b0041627ab1554sm3006269wmq.22.2024.04.10.11.08.21 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 10 Apr 2024 11:08:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1712772502; x=1713377302; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=J9NiNwxiik0OPXqS4C5bJncJdvLmqX2i9ON6pLi1lts=; b=y/OqxLa7FJQuKj4DNIuXc5+nZni8/Qfg+c/9vWgRBHnysSGTjeYJquECaYBILZyfJ8 uOrUPQEgRK69NM07uXpgsnW/u2D7XHEz2A7k8EU8oUUgjs8LKuw6Kfgtpo5ZbBZv+Dl0 FnBDqMnzmx4bvF+DdWTpzY/cJKK8B1kNDlBiWTHHFqh+6kZtZyQisHnsUaSooHoQWP+3 iocRElFGJwJahCJKjT1ZcboFWX/oHcHhnf+Tg3FGjfww1FxZKrZblg0MatcyPChV6sbp KYJAqU5SaoXz03QQHZBVBNOzCtDu24qhybzpIDHozIeKrxB5c2k1a/MbfXNLt/smhzGb 5j4A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712772502; x=1713377302; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=J9NiNwxiik0OPXqS4C5bJncJdvLmqX2i9ON6pLi1lts=; b=LzqaRT5gcI5ZfwXzH8gbBMDeRf9KeU2HEyBIiFDqnIchVqy5eHmvaHuaBucXng+kbT x3F0PMCPnClZnrXRG8BMt+qs8bQQWUEEcbTdfqQh/nLrg7KY8tjKGGBaO8GAR0yQYxEX 7nXP7B2w1UNs/yZGwqBl59bmigiaPEB9iXXLL78qFlxAgfoJ5rBfEGtwytxKdOJUMX8Q QUHjz6EeBx3GxWB+UIsPeIOnC3X6vpI1oAP/VlcQ+ZBYr72n0oYpLmnjAsq5Rdwt3KQl E7m5rvnczgvXZbQd1dVf1Og/ilHX2MfMLeBVL4cZicAewuGUB2tQlnR4+HoTQQjezm4m rifw== X-Gm-Message-State: AOJu0YxKb75DpexkaGlxDDu4AewTG1dwgb3qFMILQn5MfYLcPl5reWxo rB7u0p+J5nG2fndApVDbYmWTgp0nv9R8IfIRyiDYb9e6XwOxr9Ph1DSXlxzV/hp2GfDBRuc5tPc s X-Google-Smtp-Source: AGHT+IHgxOsAGDmbAXnkH7bXvZ0Qg81OHJFmyDq06HHKwXqdta1dfrVEYnXLNkO3ZvVt6Tp9ToG+ng== X-Received: by 2002:a05:600c:5654:b0:415:6daf:c64b with SMTP id js20-20020a05600c565400b004156dafc64bmr2815076wmb.16.1712772502216; Wed, 10 Apr 2024 11:08:22 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Peter Maydell , Alexander Graf , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH] hw/misc/applesmc: Simplify DeviceReset handler Date: Wed, 10 Apr 2024 20:08:19 +0200 Message-ID: <20240410180819.92332-1-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 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 client-ip=2a00:1450:4864:20::32e; envelope-from=philmd@linaro.org; helo=mail-wm1-x32e.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: 1712772550627100003 Have applesmc_find_key() return a const pointer. Since the returned buffers are not modified in applesmc_io_data_write(), it is pointless to delete and re-add the keys in the DeviceReset handler. Add them once in DeviceRealize, and discard them in the DeviceUnrealize handler. Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Peter Maydell --- As discussed in https://lore.kernel.org/qemu-devel/6fbcf565-f12c-4196-b6c8-559843c7a78c@lin= aro.org/ --- hw/misc/applesmc.c | 36 +++++++++++++++++++++--------------- 1 file changed, 21 insertions(+), 15 deletions(-) diff --git a/hw/misc/applesmc.c b/hw/misc/applesmc.c index 14e3ef667d..59a4899312 100644 --- a/hw/misc/applesmc.c +++ b/hw/misc/applesmc.c @@ -145,7 +145,7 @@ static void applesmc_io_cmd_write(void *opaque, hwaddr = addr, uint64_t val, s->data_pos =3D 0; } =20 -static struct AppleSMCData *applesmc_find_key(AppleSMCState *s) +static const struct AppleSMCData *applesmc_find_key(AppleSMCState *s) { struct AppleSMCData *d; =20 @@ -161,7 +161,7 @@ static void applesmc_io_data_write(void *opaque, hwaddr= addr, uint64_t val, unsigned size) { AppleSMCState *s =3D opaque; - struct AppleSMCData *d; + const struct AppleSMCData *d; =20 smc_debug("DATA received: 0x%02x\n", (uint8_t)val); switch (s->cmd) { @@ -269,23 +269,10 @@ static void applesmc_add_key(AppleSMCState *s, const = char *key, static void qdev_applesmc_isa_reset(DeviceState *dev) { AppleSMCState *s =3D APPLE_SMC(dev); - struct AppleSMCData *d, *next; =20 - /* Remove existing entries */ - QLIST_FOREACH_SAFE(d, &s->data_def, node, next) { - QLIST_REMOVE(d, node); - g_free(d); - } s->status =3D 0x00; s->status_1e =3D 0x00; s->last_ret =3D 0x00; - - applesmc_add_key(s, "REV ", 6, "\x01\x13\x0f\x00\x00\x03"); - applesmc_add_key(s, "OSK0", 32, s->osk); - applesmc_add_key(s, "OSK1", 32, s->osk + 32); - applesmc_add_key(s, "NATJ", 1, "\0"); - applesmc_add_key(s, "MSSP", 1, "\0"); - applesmc_add_key(s, "MSSD", 1, "\0x3"); } =20 static const MemoryRegionOps applesmc_data_io_ops =3D { @@ -343,6 +330,24 @@ static void applesmc_isa_realize(DeviceState *dev, Err= or **errp) } =20 QLIST_INIT(&s->data_def); + applesmc_add_key(s, "REV ", 6, "\x01\x13\x0f\x00\x00\x03"); + applesmc_add_key(s, "OSK0", 32, s->osk); + applesmc_add_key(s, "OSK1", 32, s->osk + 32); + applesmc_add_key(s, "NATJ", 1, "\0"); + applesmc_add_key(s, "MSSP", 1, "\0"); + applesmc_add_key(s, "MSSD", 1, "\0x3"); +} + +static void applesmc_unrealize(DeviceState *dev) +{ + AppleSMCState *s =3D APPLE_SMC(dev); + struct AppleSMCData *d, *next; + + /* Remove existing entries */ + QLIST_FOREACH_SAFE(d, &s->data_def, node, next) { + QLIST_REMOVE(d, node); + g_free(d); + } } =20 static Property applesmc_isa_properties[] =3D { @@ -377,6 +382,7 @@ static void qdev_applesmc_class_init(ObjectClass *klass= , void *data) AcpiDevAmlIfClass *adevc =3D ACPI_DEV_AML_IF_CLASS(klass); =20 dc->realize =3D applesmc_isa_realize; + dc->unrealize =3D applesmc_unrealize; dc->reset =3D qdev_applesmc_isa_reset; device_class_set_props(dc, applesmc_isa_properties); set_bit(DEVICE_CATEGORY_MISC, dc->categories); --=20 2.41.0