From nobody Tue Feb 10 04:08:02 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of _spf.google.com designates 209.85.128.43 as permitted sender) client-ip=209.85.128.43; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-f43.google.com; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of _spf.google.com designates 209.85.128.43 as permitted sender) smtp.mailfrom=philippe.mathieu.daude@gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1625322011; cv=none; d=zohomail.com; s=zohoarc; b=Ew9HwOrdQPK1cyU8al4+THuXpeUE95Dxxp2GBliuwTi7IULEQ0mi/E28vmy6fyFy2DKDd7vCehHtDrHwwiod732wfsCYF9SiSuxx7+KWpB9qhNx0HalWBQJ08FD4bGDNQonx39x5iM+J7b+p/AhSaq5Sblpvq5JY6UaszVOBC9A= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1625322011; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Sender:Subject:To; bh=Em2fgVP5QhNPdopIzF7iM8J887QSPYAiCh7SUQHMHl8=; b=Omywm39A+ConmH2VO0vUxhO9oGp5mTvzzkGLeINTJuP/E0e2qoNpw6B32SnBPuxzLiK5xI2siAuJPd1xCchRQyOKJrjtScc+9Ly7dDCPLsQpWD2q3SNtY3hRFIAhtWfsPSsfVn0LNRGoqsgExZJQIX3F+rLQLoG3+8xfZjXHQEA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of _spf.google.com designates 209.85.128.43 as permitted sender) smtp.mailfrom=philippe.mathieu.daude@gmail.com Received: from mail-wm1-f43.google.com (mail-wm1-f43.google.com [209.85.128.43]) by mx.zohomail.com with SMTPS id 1625322011301128.93419613143897; Sat, 3 Jul 2021 07:20:11 -0700 (PDT) Received: by mail-wm1-f43.google.com with SMTP id n33so895399wms.1 for ; Sat, 03 Jul 2021 07:20:10 -0700 (PDT) Return-Path: Return-Path: Received: from x1w.. (184.red-95-127-187.staticip.rima-tde.net. [95.127.187.184]) by smtp.gmail.com with ESMTPSA id l16sm16664993wmj.47.2021.07.03.07.20.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 03 Jul 2021 07:20:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Em2fgVP5QhNPdopIzF7iM8J887QSPYAiCh7SUQHMHl8=; b=HkVaSweBPW4Dpr+P/I9JhMIL/XOyEyVJ6HuJ8+oYntHpNbbUIrMJ8toKynQazGVpjP 0YWbukBQoFYHcNfPMSYUb3FS3EiTTbUG2ml0z4XAXSjsopQ9/uMkzf91/t3dpLXmhgz+ /vJkMN/59UMcfwxh09G1yDijm+6l1+r2mZEIhKeUq2YHHV8MMYq2zdmsMl7M/xKN7NnV VSBK9/UZ+Nev7fSZS5B/iHZIP+KyGpxGrvzdmp58wzomi6md//R3zaQBUQW1TCDLPaHt RYlgt3r1eLj4Hog0Y/qDjb8I+y7s+/YZHaFHCJGbVm30aBEV9Bw3lhGnDdE0gTl+IiNe H9hw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=Em2fgVP5QhNPdopIzF7iM8J887QSPYAiCh7SUQHMHl8=; b=DxPiRog4X3itBTxcU9gnxcVlJFibdkrsBR8PklgDvtAJrQQAmqaRP5ctLqsgzMgHfv CafXa9YS0XL9B+KNr1nHpckx13/pLS4qI/jkgvrmUN8e1GrJ5YOvwVK3EOnXZVI0uees mWxvMlmcGBmnfnd/14n5CvC1kpOlxLL3IfNy5gzERWOnovso15faUdI60j3LjQcyoMXm Dm/ikRF4kpE6avqUDhMpwjWPP406xNaRHIdfzv9XMba2zZpKXA07wcffVt/RYcyu+Gfh BmfZJMCH3GRdh1/SRdNdoMjOCAJiW3zqVAaPWWnAvK2dV+ksJ+BUj41b8R1jnVGCQHZA n4eg== X-Gm-Message-State: AOAM531LxOHhom9Red6uqTxXe4ocViRr9e2rqB4TzQMWMR9FeRwB62t/ 89F6i4O/RgGsA90hE6pgc+c= X-Google-Smtp-Source: ABdhPJyHnPSv4yprU/GCWAhZjdpuJyNIUH2i2TtH5dyR53QSePZULbHh6CcSsaKtg6lc+3ENLgu7Lg== X-Received: by 2002:a05:600c:2215:: with SMTP id z21mr5080651wml.92.1625322009571; Sat, 03 Jul 2021 07:20:09 -0700 (PDT) Sender: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Laurent Vivier , Jason Wang , Finn Thain , Mark Cave-Ayland , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [RFC PATCH 3/6] dp8393x: Restrict bus access to 16/32-bit operations Date: Sat, 3 Jul 2021 16:19:44 +0200 Message-Id: <20210703141947.352295-4-f4bug@amsat.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210703141947.352295-1-f4bug@amsat.org> References: <20210703141947.352295-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1625322012837100001 Per the DP83932C datasheet from July 1995: 1. Functional Description 1.3 DATA WIDTH AND BYTE ORDERING The SONIC can be programmed to operate with either 32-bit or 16-bit wide memory. Restrict the memory bus to reject 8/64-bit accesses. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/net/dp8393x.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index d16ade2b198..c9b478c127c 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -695,6 +695,8 @@ static const MemoryRegionOps dp8393x_ops =3D { .write =3D dp8393x_write, .impl.min_access_size =3D 2, .impl.max_access_size =3D 2, + .valid.min_access_size =3D 2, + .valid.max_access_size =3D 4, .endianness =3D DEVICE_NATIVE_ENDIAN, }; =20 --=20 2.31.1