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,
cohuck@redhat.com, kvm@vger.kernel.org,
linux-s390@vger.kernel.org
Subject: [PATCH v3 0/2] s390/kvm: fix MVPG when in VSIE
Date: Tue, 9 Feb 2021 16:43:00 +0100 [thread overview]
Message-ID: <20210209154302.1033165-1-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.
v2->v3
* improved some comments
* improved some variable and parameter names for increased readability
* fixed missing handling of page faults in the MVPG handler
* small readability improvements
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 | 30 ++++++++++--
arch/s390/kvm/gaccess.h | 5 +-
arch/s390/kvm/vsie.c | 101 ++++++++++++++++++++++++++++++++++++----
3 files changed, 121 insertions(+), 15 deletions(-)
--
2.26.2
next reply other threads:[~2021-02-09 15:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 15:43 Claudio Imbrenda [this message]
2021-02-09 15:43 ` [PATCH v3 1/2] s390/kvm: extend kvm_s390_shadow_fault to return entry pointer Claudio Imbrenda
2021-02-11 8:35 ` Janosch Frank
2021-02-11 9:18 ` David Hildenbrand
2021-02-11 12:57 ` Claudio Imbrenda
2021-02-11 13:15 ` David Hildenbrand
2021-02-09 15:43 ` [PATCH v3 2/2] s390/kvm: VSIE: correctly handle MVPG when in VSIE Claudio Imbrenda
2021-02-11 8:46 ` Janosch Frank
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