[prev in list] [next in list] [prev in thread] [next in thread]
List: linux-s390
Subject: [PATCH v2 0/1] vfio-ccw: Enable transparent CCW IPL from DASD
From: Jared Rossi <jrossi () linux ! ibm ! com>
Date: 2020-04-30 21:29:58
Message-ID: 20200430212959.13070-1-jrossi () linux ! ibm ! com
[Download RAW message or body]
Remove the explicit prefetch check when using vfio-ccw devices.
This check is not needed in practice as all Linux channel programs
are intended to use prefetch.
Version 2 improves logging by issuing a warning if a non-prefetch
ORB is encountered. A kernel warning is printed when an ORB without
the p-bit set is initialized. The warning is limited to once per
five seconds because, if encountered, non-prefetch ORBs tend to
appear in bursts of hundreds per second.
The commit message is expanded to highlight the potential for
future risk if non-prefetch dependent channel programs become
prevalent. Furthermore, a note of prefetch only support is
added to the limitations section of the vfio-ccw.rst.
Jared Rossi (1):
vfio-ccw: Enable transparent CCW IPL from DASD
Documentation/s390/vfio-ccw.rst | 4 ++++
drivers/s390/cio/vfio_ccw_cp.c | 16 +++++++---------
2 files changed, 11 insertions(+), 9 deletions(-)
--
2.17.0
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic