From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1691437267D; Wed, 8 Apr 2026 07:06:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775632021; cv=none; b=UK8SRWmP1k7s5EBcqhJ8yHXpOCAIgYv7T2xWYHQ3jRZgPARZLrqhkMUHE6bSPIcLJec/H1qLNtpc/YS664QzPOynAJombHIW2c61/QIzsRHdnppZGBp1CjB0dNkVKTRrY0T4iunfyp0YBrHyuywMPela6u0ec0A8ovm5f+Eps7Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775632021; c=relaxed/simple; bh=qqisiRUcKsMuNGTzUMZDCYf0m8fM5jcWRywKXvtz4n0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=s61RGpe2XqHIWFi7UcPQcUo3xPRTSBlePTghPScQbEbW/Sa+EOOBQo/DnUiRjYy3m0hyuDBGbhMs6CyzzJe1TUiEeJKXzsNBLA07MFkD0AK1g/K7JOjbeNK78ynmU4xn1RMJ5W0mSokTWzrHlUlmbofM7/1O/QRh6VmfjGvy6bA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=sx6e6ko/; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="sx6e6ko/" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2AB043594; Wed, 8 Apr 2026 00:06:52 -0700 (PDT) Received: from [10.57.32.84] (unknown [10.57.32.84]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id AA7133F641; Wed, 8 Apr 2026 00:06:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1775632017; bh=qqisiRUcKsMuNGTzUMZDCYf0m8fM5jcWRywKXvtz4n0=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=sx6e6ko/WUnzOYbXo1ZC0/5e5AA2IwgEuKQo3JEUYcjIEamA9ixSNn9Xfz/DBAyLw vag9fx+ghULspg/VmqWSthCJHfB/gmxyEPG5nJquVQOpSn7WWZeFyM8FzjIDOpMqa9 MpVFyu/mW7VcEqY5b3rm+0Si6ukgOEcK+muUDH5I= Message-ID: Date: Wed, 8 Apr 2026 09:06:51 +0200 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] docs: proc: document ProtectionKey in smaps To: Randy Dunlap , Dave Hansen , linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Yury Khrustalev , Jonathan Corbet , Shuah Khan , Dave Hansen , Andrew Morton , Lorenzo Stoakes , Vlastimil Babka , David Hildenbrand , Mark Rutland , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org References: <20260407125133.564182-1-kevin.brodsky@arm.com> <98880cc2-09be-4bd8-b8f4-f0f0845f939e@intel.com> <2d2aac86-2780-4a29-9eef-116c26485812@arm.com> <18e2042c-d414-40fb-8819-5e930d5b1584@infradead.org> From: Kevin Brodsky Content-Language: en-GB In-Reply-To: <18e2042c-d414-40fb-8819-5e930d5b1584@infradead.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 07/04/2026 20:58, Randy Dunlap wrote: >>> To me "system" is a bit ambiguous here but _can_ refer to the whole >>> hardware/software system as a whole. To avoid redundancy, I'd say either: >>> >>> If both the kernel and the processor support protection keys... >>> >>> or >>> >>> If the system supports protection keys... >> I see your point. By "system" I essentially mean the hardware (the SoC). >> In general I would tend to avoid "processor" because not all CPUs in a >> system necessarily have the same features, and some features require >> hardware support beyond the CPU itself. Terminology is hard... >> >> Happy to replace "system" with "hardware" if that's clearer 🙂 > I think that "system" is too nebulous there, so I would prefer to see > "hardware" instead. Ack, will send a v2. - Kevin