From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f180.google.com (mail-pf1-f180.google.com [209.85.210.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DBCDD1A680F for ; Thu, 28 May 2026 05:55:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779947757; cv=none; b=QLSirx8hNxo80QnnySPjdbOY2ifD7eSlegtIQ1Wf8ynZL9MbrFmK9SWLZSk/rhHxqZq4tZllMLojvZazMOAs83p9fQLGuOrv9BIYZg/dbK0mjd3hsMPhoZyDZBq6TQP1gZHhPSQeMkJ2ribcPFq7c1VI+zf+lepEW8aL3V7OTF4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779947757; c=relaxed/simple; bh=yxjOlZK2OiSCsBOg2UwiHx71hZLJL/H+5jNS9iPnx94=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ENCIyBab7G3tzX8vbWn+ns/1A8kmafagGTqiWmbVA4bL5Mz377qdqB1zsL3NtzksATPyoXyUQK1gJawtlbT3FCXoLQqgDIz1S8DbQqWjcUv+tEk7gWNAiLAxMPMJx94jv4Y1bel+tA3HSJh98T8+tqXeeokw9ktQFY9ZJHTTppw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=puhKdIpQ; arc=none smtp.client-ip=209.85.210.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="puhKdIpQ" Received: by mail-pf1-f180.google.com with SMTP id d2e1a72fcca58-835c98b659eso9964783b3a.0 for ; Wed, 27 May 2026 22:55:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779947755; x=1780552555; darn=vger.kernel.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=6+/x1y/Lh0bso6UxK1vW2WZa03KFzqlFGYCtQYm4XYY=; b=puhKdIpQb4gxigjCC/R0TKyPlQzIQUWFdeiJBQ1g5YT3rhxg3OvNN2+gSZDBP+5YVx 8VL1Xmgj1G6q7s/m/ZIrvP3noM1ol6PbasgaX7dfZxRoDDR3VY08EmgMclsVyfOXsewX KZ8V3ziN2m6cJWwU99gERiEF5zyCRckBJx4P0Q+39hrVow5xHOB8eSB0oWhqYvDzE98c YTpIfHMHK5g3zU39FKmO1LyQACjwIO+TMuCaiwHrsZgloy/XNFuEMwNEiRcP0ep9FMgQ uq+Ok+w447UDYONYg6SMZ50GCqX0K4iEL4gl6zd7OwO5ElArWu+9hkASOK2m6Y+kvVxb 5lSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779947755; x=1780552555; 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=6+/x1y/Lh0bso6UxK1vW2WZa03KFzqlFGYCtQYm4XYY=; b=hxi+zcUOOQSocwb58IwQ9S834WgYBQj6NK8KpKDlomhIu4s3a/LdBlgK3T6l2c9Yim JGlSczwL0Bmul8Qb37K6gX7+GXsAnPMeFnocsgClexOt1l6tO0AAVI839zC5pLxY5XBs dp/xcqxU3z3v24+k2AYIvR/43G7bTy28VoGVByIVIdWKKmeoCArsNkw+y3m86LfaefaS HaxIVHlMmLf4dPF/DXXhAO9ykIY0Oxuqus3rq5COhd4hpXO+B6eq1mM1icSlAYdGgIul OnebSZ3hcNCTM1iwDjrvGOjsRd2Q/0WVAHdfB+RJDVUI53xRtrLRJrLSH4j1j5xuyvXF DuBQ== X-Forwarded-Encrypted: i=1; AFNElJ8ZosIbRNBA6e83wdoH82ygR8k7BHLGZr4/p5JYJmPSPr4x+ttQCfxbQbEu2tZJMvBNo4nHf/2stFw=@vger.kernel.org X-Gm-Message-State: AOJu0Yx8LJH9heyoTx5Ub44BwAAJTqWK9aD1mziu2rMZ+vGEJbMq8UXf SYNRLAINTUwC9dGtD1h63Hl4wDWjckQ+Veax7oONXJj6fRT9Q5f3sy8o X-Gm-Gg: Acq92OGKkfx4nJHxzgoTiXVEl5F9zHSZIq1DH30vBonxxacBhPwmErQRIAh/cLVgK7a 95I6PALS7AauKEdp7AAkyerh5S4NFFCXKv3F8hAfbng+I6Or34U96xGXPxFyrVMQpl3mTosTCk3 eJ3ohtyHpEoQ0zQGKGQW9Go8pPlYnh4bLU3kgXVopJ8R1LJam1TQwFceOBxtVCK7VWdslVs2OR2 tD4meMBeD1nfLAXHIZqrOAmEoGv6UksoHQpVxewKtsmN89DulQKbjgTTnMO9dEDl88Sfj9bWS1y 3u4h7CkhFqyqhbwmHxYNWb51dhghQEU6f4+oJQZ/quwbBu2yvaxYvVv5xIPbfVFTbnLGCOzbIJt vq4r0MbM9plqk1r2IcfMzY/+00QRXso3f8VlRfaWGjMy70fIAYtC4daDBvo4zNZLvi7Rm+5WGXv rv8VVDPBvsrngEqQ0KRaDxYlOXDeY9yn+alP0= X-Received: by 2002:a05:6a00:1944:b0:82f:5125:a327 with SMTP id d2e1a72fcca58-8415f33006amr23596647b3a.27.1779947755078; Wed, 27 May 2026 22:55:55 -0700 (PDT) Received: from gmail.com ([114.249.134.218]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-841f3cbce48sm758068b3a.10.2026.05.27.22.55.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 May 2026 22:55:54 -0700 (PDT) From: Jia Jia To: qemu-devel@nongnu.org Cc: Jonathan Cameron , Jonathan Cameron , Fan Ni , Fabiano Rosas , Laurent Vivier , Paolo Bonzini , linux-cxl@vger.kernel.org Subject: [PATCH v3 0/2] hw/cxl: bound Set Feature writes Date: Thu, 28 May 2026 13:55:23 +0800 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260429152750.2409174-1-physicalmtea@gmail.com> References: <20260429152750.2409174-1-physicalmtea@gmail.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Jonathan, Thanks for the review. This v3 splits the helper extraction from the actual bug fix. Patch 1 is a refactor only: it folds the existing patrol scrub and ECS bounds checks into a helper, with no intended functional change. Patch 2 uses that helper for the remaining Set Feature branches that still copy into fixed-size write-attribute buffers without bounds validation. That patch carries the Fixes tags. I have left the qtest out of this backportable bugfix series for now. I can send it separately after addressing the x86-only and magic-value comments. Changes since v2: - split helper extraction from the bug fix - add Fixes tags to the bug-fixing patch - leave the qtest for a separate follow-up Jia Jia (2): hw/cxl: factor Set Feature write bounds helper hw/cxl: validate PPR and sparing Set Feature writes hw/cxl/cxl-mailbox-utils.c | 94 ++++++++++++++++++++++++++++---------- 1 file changed, 70 insertions(+), 24 deletions(-) -- 2.34.1