From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1A10421421A for ; Mon, 21 Jul 2025 17:27:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753118829; cv=none; b=Pij2uIAja98nmqU2u1HsdSpIkWDLNqqBygb9KqyHktG1JvdQcbEfe1DxAdV9hVJUJvNlb1A2posc5XN6jgMYwo3Xh/W7BhA/+jIMBhdhccv7OLmlLOUSZji1ofpFDtanNIzdVcWMDAUiZqpmDTiLrG5VPQ04SbBvd8S4gGJ099M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753118829; c=relaxed/simple; bh=XmLEsA1svCSnY0PA7EpZBfYIb9SRHpQRMP2dkszVMBU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HZBIvuqkijyZJUxDVPEgAfO14aFT47u1g7KOGGuzYP+rkwW8SF5JMikdHGJl0kEpVvdjCBgKC1oiV5odLZ5UABSc9P3TDzOI1LBIoX97SaNHZcMa22FaD6GC5b/wdoyWy5/cjdIfXS9SCQTkzoNJ/K8jkDyecmJ3FhBQiQ++ok0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=pC94KJnz; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="pC94KJnz" Received: from [10.137.184.60] (unknown [131.107.160.188]) by linux.microsoft.com (Postfix) with ESMTPSA id 86BFD21175B2; Mon, 21 Jul 2025 10:27:07 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 86BFD21175B2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1753118827; bh=xmub9aFjvw/tMVjGdDoWaTJsjARmDuiOsiPPDj+ZHGM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=pC94KJnzta6iMqNqUYaCSQV4FmFEG6muwIv+Ul3Kml2rl8YX+6COamsbOVfmaeiln iA3hgjNLDefPnXXkNEDhAmDXqGYB2jUUkDhsE5ZWQKN3AibF1VwuiE4kTavpYvRm6G jSP0Y0HxHnQQ0/YFG0mMKbyV/YL6pYQM+XswYtJo= Message-ID: <9f39e539-3216-4f5d-819f-9500f76a0154@linux.microsoft.com> Date: Mon, 21 Jul 2025 10:27:07 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: kvm, smccc: Fix vendor uuid To: Will Deacon , Marc Zyngier Cc: Jack Thomson , mark.rutland@arm.com, lpieralisi@kernel.org, sudeep.holla@arm.com, arnd@arndb.de, wei.liu@kernel.org, mhklinux@outlook.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, oliver.upton@linux.dev, kvmarm@lists.linux.dev, roypat@amazon.com, Jack Thomson References: <20250721130558.50823-1-jackabt.amazon@gmail.com> <86jz418rh3.wl-maz@kernel.org> Content-Language: en-US From: Roman Kisel In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/21/2025 10:14 AM, Will Deacon wrote: > On Mon, Jul 21, 2025 at 04:59:36PM +0100, Marc Zyngier wrote: [...] >> >> Irk. This is remarkably embarrassing, and needs to be addressed ASAP, >> before 6.16 ships. FWIW, I've just posted a quickly whipped selftest >> that shows the problem[1]. >> >> Will, is there a chance you can pick this up and ferry it to Linus? >> If you do, please add: >> >> Reviewed-by: Marc Zyngier >> Tested-by: Marc Zyngier > > Sure, I'll grab it. Thanks! > I'm sorry for that, apologies for screwing things up :( Very much appreciate the fix and the test. I clearly missed testing backward compat. with the old kernels. > Will -- Thank you, Roman