From: Claudio Imbrenda <imbrenda@linux.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: borntraeger@de.ibm.com, frankja@linux.ibm.com, david@redhat.com,
kvm@vger.kernel.org, linux-s390@vger.kernel.org
Subject: [PATCH v2 0/2] s390/kvm: fix MVPG when in VSIE
Date: Tue, 2 Feb 2021 19:00:26 +0100 [thread overview]
Message-ID: <20210202180028.876888-1-imbrenda@linux.ibm.com> (raw)
The current handling of the MVPG instruction when executed in a nested
guest is wrong, and can lead to the nested guest hanging.
This patchset fixes the behaviour to be more architecturally correct,
and fixes the hangs observed.
v1->v2
* complete rewrite
Claudio Imbrenda (2):
s390/kvm: extend kvm_s390_shadow_fault to return entry pointer
s390/kvm: VSIE: correctly handle MVPG when in VSIE
arch/s390/kvm/gaccess.c | 26 ++++++++--
arch/s390/kvm/gaccess.h | 5 +-
arch/s390/kvm/vsie.c | 102 ++++++++++++++++++++++++++++++++++++----
3 files changed, 119 insertions(+), 14 deletions(-)
--
2.26.2
next reply other threads:[~2021-02-02 18:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-02 18:00 Claudio Imbrenda [this message]
2021-02-02 18:00 ` [PATCH v2 1/2] s390/kvm: extend kvm_s390_shadow_fault to return entry pointer Claudio Imbrenda
2021-02-04 16:34 ` Janosch Frank
2021-02-04 17:05 ` Janosch Frank
2021-02-05 12:18 ` Claudio Imbrenda
2021-02-05 12:15 ` Claudio Imbrenda
2021-02-05 12:56 ` Janosch Frank
2021-02-05 14:05 ` Claudio Imbrenda
2021-02-02 18:00 ` [PATCH v2 2/2] s390/kvm: VSIE: correctly handle MVPG when in VSIE Claudio Imbrenda
2021-02-03 10:36 ` Claudio Imbrenda
2021-02-04 17:10 ` Janosch Frank
2021-02-05 12:20 ` Claudio Imbrenda
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=20210202180028.876888-1-imbrenda@linux.ibm.com \
--to=imbrenda@linux.ibm.com \
--cc=borntraeger@de.ibm.com \
--cc=david@redhat.com \
--cc=frankja@linux.ibm.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).