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-next>] [day] [month] [year] [list]
Message-ID: <20240426120447.34318-1-imbrenda@linux.ibm.com>
Date: Fri, 26 Apr 2024 14:04:45 +0200
From: Claudio Imbrenda <imbrenda@...ux.ibm.com>
To: linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org
Cc: hca@...ux.ibm.com, gor@...ux.ibm.com, agordeev@...ux.ibm.com,
        svens@...ux.ibm.com, gerald.schaefer@...ux.ibm.com,
        borntraeger@...ibm.com
Subject: [PATCH v3 0/2] s390/pgtable: misc small improvements

This series has two small improvements for the s390 page tables. they
fix some small inconsistencies and missing things.

The first aligns the layout of large puds with that of large pmds;
there is no reason for the large pud read and write softbits to be
swapped compared to large pmds.

The second adds a few bits to _SEGMENT_ENTRY_BITS,
_SEGMENT_ENTRY_HARDWARE_BITS and _SEGMENT_ENTRY_HARDWARE_BITS_LARGE;
those bits are supposed to always be zero, the current code was working
correctly since those bits were being ignored and always left set to
zero. The patch also introduces _REGION3_ENTRY_HARDWARE_BITS and
_REGION3_ENTRY_HARDWARE_BITS_LARGE, for completeness, which are the
bitmasks of the hardware bits for normal puds and large puds.

v3->v2
* update patch description for the second patch
v2->v1
* add the missing pmd bits and _REGION3_ENTRY_HARDWARE_BITS

Claudio Imbrenda (2):
  s390/pgtable: switch read and write softbits for puds
  s390/pgtable: add missing hardware bits for puds, pmds

 arch/s390/include/asm/pgtable.h | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

-- 
2.44.0


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ