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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-439dad1cb7csm21421438f8f.0.2026.03.08.15.37.51 for (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sun, 08 Mar 2026 15:37:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1773009473; x=1773614273; 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=M77BldNhBLWDAqoR5Ls4NYc5x77VJRLwJ22XVsrrWUA=; b=HmXYIYrGSHbyGoh3i2b68BksumpYNVC5LdMkKWsN2zka3wZbtSIdUoLLEyZw/jXhjA hXweMrQWwZpFadlruGI/bRo5aSec+IuRoGEqey7Rz9kUDR9BTHJPuoFUrbAtWzySYRqT olRrwpSSb3uVOU5Ql4CRKPS9HIWuAm8rUvGCjPBXXZAIbYGx9WQ1DfCkwHHe8t0U2sg5 4BSevY730UI0J1GQm/wCV0eW8vtbbGNktSk3T7LfyIHLcVlKGogrq/OtC49SMGazUqXl 8eIkFZW/8LFj5uaQfm5qga0unp1fOLKMF33ilkuEYmYzSfpIn8DtX9O5+61EcrIxylc+ dtEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773009473; x=1773614273; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=M77BldNhBLWDAqoR5Ls4NYc5x77VJRLwJ22XVsrrWUA=; b=VxJsvvFhUSg9Hb/SfVjZmQpqzf1qtlRW4qB9MN2VYIVqwr1rxViKnP7VWq0CXzIbMA 3rjbiEhrxDWDYyWXzn6Q3ekIK8eOVit0nD0QBKzMVvjG86/DQTBubF+7eEF7PiV5ZAGm gPTOhph6iIg80TTZB1gfO/wBd06qMIaJ0aG4VF5OSa3c3EUjkV+mFkMl40xbFblQsbhA J8AnRMm+vWcJJ9ZIpAf0Tx5g1HKBvX9kORA2ACRvdNk/r00D7Q/3jD9ejFQK1mx6GZo7 GByUu/OYfjjeidYqcrjEWM8zJHaUpfSv1mfYKcg7pHt+2UGznleOwAZ4e9d1R0Fj7lYj +8ig== X-Gm-Message-State: AOJu0YwvQvUqgT9rltwa8JAJcEqChDmjNisnRQZNwFonC6R3erm6QaYz jOIa2iF0ZG8eRKtJbG/oAEe/I7pve656xzu9DRslbnuSOiUIqh9D+IMxIHHc0D1EmEEJl0C4r6U dpmLCwMY= X-Gm-Gg: ATEYQzwEuRNByi447zEQVnt1ckCr8b/sxH16kz3MR/lNpmBSmyDx5UkEjBPj+R6LTHI H/Iis2pISE2D/jv7EyX8B9WhnnuH7mGV3vGbys8+VG1+zrxbf68b+ujFV6qPSnO6f7gzktS2Len /VzXRWfq6uRlgMs8MWM52YikdSakeXc9uavm3yDYsT/zTVm/JpNku6PWurVzgblzPsmii8rmxF7 +egAe9+xAxuIvENI53MIATvSEDBKzxldra+eXQdAdMr1dQGWTNoAT1fWVsSgZdh1OZa/gol6z0x mOUVJrXF2ZSsiZKtlYuILAnrldnv2giOwbM+f/Omffqu8/eByDagdCLh5zCUiDWXj4QNGStLJr7 sU3NwJxrjotvDO9H7KIBOGAidTOTH1eWbpE/hxO+xLPl9SpSm1fs1nTVkL1u2N3AHG/nKs/ZVjV 0nve9HqzxG7c+JKzYXr3ItvT4alAxdHtdvrFsQeTgpwHIfk6m6EW4BGhuuXl5BrED7mm204X9LP PO2biToPsOr3AfB X-Received: by 2002:adf:ffc9:0:b0:439:df0b:2885 with SMTP id ffacd0b85a97d-439df0b28e1mr7445746f8f.58.1773009472790; Sun, 08 Mar 2026 15:37:52 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PULL 29/49] hw/net/xilinx_axienet: Prevent writes to PHY Identification registers Date: Sun, 8 Mar 2026 23:34:13 +0100 Message-ID: <20260308223433.25503-30-philmd@linaro.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260308223433.25503-1-philmd@linaro.org> References: <20260308223433.25503-1-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 client-ip=2a00:1450:4864:20::434; envelope-from=philmd@linaro.org; helo=mail-wr1-x434.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: qemu development 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: 1773009505387158500 From: Jim MacArthur There are other registers in the PHY model which should be partially or entirely read-only, but this solves the immediate issue. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3297 Signed-off-by: Jim MacArthur Reviewed-by: Edgar E. Iglesias Message-ID: <20260305-xilinx-phy-protection-v1-1-ffc9edd84e58@linaro.org> Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/net/xilinx_axienet.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/net/xilinx_axienet.c b/hw/net/xilinx_axienet.c index d85f8bb23fe..970732b162b 100644 --- a/hw/net/xilinx_axienet.c +++ b/hw/net/xilinx_axienet.c @@ -141,6 +141,10 @@ tdk_write(struct PHY *phy, unsigned int req, unsigned = int data) regnum =3D req & 0x1f; DPHY(qemu_log("%s reg[%d] =3D %x\n", __func__, regnum, data)); switch (regnum) { + case 2: + case 3: + /* Writes to PHY Identification registers are disallowed */ + break; default: phy->regs[regnum] =3D data; break; --=20 2.53.0