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
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