[prev in list] [next in list] [prev in thread] [next in thread]
List: linux-s390
Subject: [PATCH v1 0/3] s390x: css: adapting the I/O tests for PV
From: Pierre Morel <pmorel () linux ! ibm ! com>
Date: 2020-08-31 12:05:30
Message-ID: 1598875533-19947-1-git-send-email-pmorel () linux ! ibm ! com
[Download RAW message or body]
To adapt the test for PV we need to share the I/O memory with the host.
To do so we:
- implement the share/unshare ultravisor code.
- implement dedicated allocation routine which make sure that
- the I/O memory is on dedicated pages
- the I/O memory is shared if the guest is run under PV
- replace the start_single_ccw() by ccw_alloc() and start the
start_ccw1_chain() directly from the test function.
This allows to correctly free the I/O memory after the interruption.
Best regards,
Pierre
Pierre Morel (3):
s390x: pv: implement routine to share/unshare memory
s390: define UV compatible I/O allocation
s390x: css: pv: css test adaptation for PV
lib/s390x/asm/uv.h | 33 +++++++++++++++++++++++++++
lib/s390x/css.h | 3 +--
lib/s390x/css_lib.c | 28 +++++++----------------
lib/s390x/malloc_io.c | 53 +++++++++++++++++++++++++++++++++++++++++++
lib/s390x/malloc_io.h | 14 ++++++++++++
s390x/Makefile | 1 +
s390x/css.c | 35 +++++++++++++++++++---------
7 files changed, 134 insertions(+), 33 deletions(-)
create mode 100644 lib/s390x/malloc_io.c
create mode 100644 lib/s390x/malloc_io.h
--
2.25.1
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic