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X-CSE-ConnectionGUID: oT1xtiCdTS2XO4a12qSXPA== X-CSE-MsgGUID: vS2O18O4Raeu7kU5ZIVn/w== X-IronPort-AV: E=McAfee;i="6800,10657,11752"; a="75577463" X-IronPort-AV: E=Sophos;i="6.23,165,1770624000"; d="scan'208";a="75577463" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2026 07:42:35 -0700 X-CSE-ConnectionGUID: X9UQn79SSZu5MuDyveNRdA== X-CSE-MsgGUID: PyT17ImUSAak2sMkKm4OdA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,165,1770624000"; d="scan'208";a="228119455" Received: from gabaabhi-mobl2.amr.corp.intel.com (HELO [10.125.108.118]) ([10.125.108.118]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2026 07:42:35 -0700 Message-ID: <98880cc2-09be-4bd8-b8f4-f0f0845f939e@intel.com> Date: Tue, 7 Apr 2026 07:42:45 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] docs: proc: document ProtectionKey in smaps To: Kevin Brodsky , 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> From: Dave Hansen Content-Language: en-US Autocrypt: addr=dave.hansen@intel.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: 75C4112000E X-Stat-Signature: ebuet59uxf6uwy51y38hkoku9i1y9gup X-Rspamd-Server: rspam06 X-HE-Tag: 1775572956-573349 X-HE-Meta: U2FsdGVkX1/kvidtGEC7kWjFRyQeIBXdK8t8H5KUy1qQzy5hQ57tDFQLwhPgn3qRIutMZ63hl/CxLIq/TCkVYdvAgxkX8G2PIp+bUoL52/roQqtBEhC191FAY7fYAzJqszoA4NIDTsEZ1ptV8FdHFMAqlr3NgAbb6LDKFzRdd88BfPt0NjHerepguGIXv2FzQ8E+vfnVYJWvF2SSB4pka5ki+xzTyHoiLE+DzHWyfSbgPyUzn3Gtqze9kIk0Y1L/Gw2Z8Njnw6DS3vftPngbO5O5urOT0GtJwNIvQx2WBLXwz7onouGFmXcmeFfqWakgdeaNM/bw+fNV/tLxY/vhl+P7JEaOxg7vnkEFRSoNGq3tttaOy2gyPl3C9dVLdEGgvwA6tv0KCXhARbPO+Wp5fXkZYST0ZPXqDaD7KjQRkBvKSc7r6XZnxu+5L2T+8ww840/lY4Ceut6ZVircsAZ1bKsfH4c+9V1pz0z6hSncqgNdslLxmaUhri0KfGbEJwB8BFVIr1GNI5TCUsHWQRx1ut5kCvuEX72CuO6FaGNU8vxoaMBQOA9FFoFuppMR+rgGv1kc5OM3iP+0rcWzinZD3uC43IKwuLdjcrC1etyVkONKrGjkCuSKcNmd7bsv01pg1FW7p9RWTmrpRCNyJG/I1/o8Hi0s+leK7us55p2xAyfCSTOXFMyg/IZ0sjx06QpXfDoHzqVU3kIUhkxLrl+sey9cjgKwqZlboeLk6Uxh2ddmnnMj9DEl5fdo3jCe2gNPDjCv7FbV8n5K+S2scx9a2zwtUL6Bf2yhsUiRYwbITMbvOK6vwTTbIMtR1tYIs5zwEwFwafCIW+zNHIClmURDTgIdkmRnmTDa6tDOWusNIDxVSzJvwT4q20Sglm6xIpFmWSJU9Q43zWm+KCqL9z0k0WBueRb8ZzfKJw9kmKw20ifsX0P36udgw9LDw1N6HBS5wbwJsXtVduNGGWDUu+m XcihfuxX EBanzdROSiUozS5wI5vTam9+9F2m6orMuA4lL8znSYCKf4kKhuZT9e96CW/yZcq60vy1/1tym+NUJTVv9q0D/Ee76GTN75XKxPd2vCiE/p+CVg/XugyCdq5ZRRhUrKqBoa6MXLn23/HTjqKJ5R5H6r6YIevsMw5cUSlQ3pBS2M9Q5M6SZNzxpmjnXvqEidx8TWmprDpHFwZCVh5spIjLOi2exWQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 4/7/26 05:51, Kevin Brodsky wrote: > +If both the kernel and the system support protection keys (pkeys), > +"ProtectionKey" indicates the memory protection key associated with the > +virtual memory area. I think you're trying to get across the point here that the kernel needs to know about protection keys, have it enabled, and be running on a CPU with pkey support. 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... But I'm ok with what you have in any case. Folks will understand what you're saying: Acked-by: Dave Hansen