From: Eric Farman <farman@linux.ibm.com>
To: Thomas Huth <thuth@redhat.com>,
Janosch Frank <frankja@linux.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: David Hildenbrand <david@redhat.com>,
kvm@vger.kernel.org, linux-s390@vger.kernel.org,
Eric Farman <farman@linux.ibm.com>
Subject: [PATCH kvm-unit-tests v1 0/6] s390x: SIGP fixes
Date: Thu, 3 Mar 2022 22:04:19 +0100 [thread overview]
Message-ID: <20220303210425.1693486-1-farman@linux.ibm.com> (raw)
Hi all,
Some of you may remember the recent discussions to straighten out
some serialization issues with the SIGNAL PROCESSOR instruction,
and its interaction with userspace. This resulted in a few kernel
patches [1] that reliably solve the issues I was seeing.
The attached kvm-unit-tests series adapts the existing smp tests
such that it can reproduce the problems I saw when those patches
are reverted (typically by simultaneously doing a kernel compile),
and also demonstrate that those patches indeed fix the issue.
There's some cleanup in here too, based on my understanding of
the smp tests as I was walking through here. Thoughts?
[1] 812de04661c4 KVM: s390: Clarify SIGP orders versus STOP/RESTART
67cf68b6a5cc KVM: s390: Add a routine for setting userspace CPU state
8eeba194a32e KVM: s390: Simplify SIGP Set Arch handling
Eric Farman (6):
lib: s390x: smp: Retry SIGP SENSE on CC2
s390x: smp: Test SIGP RESTART against stopped CPU
s390x: smp: Fix checks for SIGP STOP STORE STATUS
s390x: smp: Create and use a non-waiting CPU stop
s390x: smp: Create and use a non-waiting CPU restart
lib: s390x: smp: Convert remaining smp_sigp to _retry
lib/s390x/smp.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++---
lib/s390x/smp.h | 2 ++
s390x/smp.c | 39 +++++++++++++++++++-----------------
3 files changed, 73 insertions(+), 21 deletions(-)
--
2.32.0
next reply other threads:[~2022-03-03 21:04 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-03 21:04 Eric Farman [this message]
2022-03-03 21:04 ` [PATCH kvm-unit-tests v1 1/6] lib: s390x: smp: Retry SIGP SENSE on CC2 Eric Farman
2022-03-07 11:50 ` Nico Boehr
2022-03-07 15:20 ` Claudio Imbrenda
2022-03-03 21:04 ` [PATCH kvm-unit-tests v1 2/6] s390x: smp: Test SIGP RESTART against stopped CPU Eric Farman
2022-03-04 10:43 ` Janosch Frank
2022-03-04 14:20 ` Eric Farman
2022-03-07 12:42 ` Nico Boehr
2022-03-07 15:22 ` Claudio Imbrenda
2022-03-03 21:04 ` [PATCH kvm-unit-tests v1 3/6] s390x: smp: Fix checks for SIGP STOP STORE STATUS Eric Farman
2022-03-04 10:40 ` Janosch Frank
2022-03-04 14:38 ` Eric Farman
2022-03-07 18:30 ` Eric Farman
2022-03-03 21:04 ` [PATCH kvm-unit-tests v1 4/6] s390x: smp: Create and use a non-waiting CPU stop Eric Farman
2022-03-07 13:31 ` Nico Boehr
2022-03-07 19:01 ` Eric Farman
2022-03-07 15:30 ` Claudio Imbrenda
2022-03-07 19:03 ` Eric Farman
2022-03-08 10:31 ` Claudio Imbrenda
2022-03-08 21:18 ` Eric Farman
2022-03-09 9:27 ` Claudio Imbrenda
2022-03-03 21:04 ` [PATCH kvm-unit-tests v1 5/6] s390x: smp: Create and use a non-waiting CPU restart Eric Farman
2022-03-07 15:31 ` Claudio Imbrenda
2022-03-03 21:04 ` [PATCH kvm-unit-tests v1 6/6] lib: s390x: smp: Convert remaining smp_sigp to _retry Eric Farman
2022-03-04 10:56 ` Janosch Frank
2022-03-04 14:15 ` Eric Farman
2022-03-07 14:42 ` Nico Boehr
2022-03-07 20:15 ` Eric Farman
2022-03-08 9:03 ` Janosch Frank
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220303210425.1693486-1-farman@linux.ibm.com \
--to=farman@linux.ibm.com \
--cc=david@redhat.com \
--cc=frankja@linux.ibm.com \
--cc=imbrenda@linux.ibm.com \
--cc=kvm@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=thuth@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.