linux-kernel - Re: [PATCH 05/23] x86, kaiser: unmap kernel from userspace page tables (core patch)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <nycvar.YFH.7.76.1801052017310.11852@cbobk.fhfr.pm>
Date:   Fri, 5 Jan 2018 20:18:28 +0100 (CET)
From:   Jiri Kosina <jikos@...nel.org>
To:     Dave Hansen <dave.hansen@...ux.intel.com>
cc:     Yisheng Xie <xieyisheng1@...wei.com>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, richard.fellner@...dent.tugraz.at,
        moritz.lipp@...k.tugraz.at, daniel.gruss@...k.tugraz.at,
        michael.schwarz@...k.tugraz.at, luto@...nel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        keescook@...gle.com, hughd@...gle.com, x86@...nel.org,
        Andrea Arcangeli <aarcange@...hat.com>
Subject: Re: [PATCH 05/23] x86, kaiser: unmap kernel from userspace page
 tables (core patch)

On Fri, 5 Jan 2018, Jiri Kosina wrote:

> That's because pgd_populate() uses _PAGE_TABLE and not _KERNPG_TABLE for 
> reasons that are behind me.

[ oh and BTW I find the fact that we have populate_pgd() and 
pgd_populate(), which do something *completely* different quite 
entertaining ]

-- 
Jiri Kosina
SUSE Labs