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 v1 0/4] s390/kvm: fix MVPG when in VSIE
Date: Fri, 18 Dec 2020 15:18:07 +0100 [thread overview]
Message-ID: <20201218141811.310267-1-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.
Claudio Imbrenda (4):
s390/kvm: VSIE: stop leaking host addresses
s390/kvm: extend guest_translate for MVPG interpretation
s390/kvm: add kvm_s390_vsie_mvpg_check needed for VSIE MVPG
s390/kvm: VSIE: correctly handle MVPG when in VSIE
arch/s390/kvm/gaccess.c | 88 ++++++++++++++++++++++++++++++++++++++---
arch/s390/kvm/gaccess.h | 3 ++
arch/s390/kvm/vsie.c | 78 +++++++++++++++++++++++++++++++++---
3 files changed, 159 insertions(+), 10 deletions(-)
--
2.26.2
next reply other threads:[~2020-12-18 14:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-18 14:18 Claudio Imbrenda [this message]
2020-12-18 14:18 ` [PATCH v1 1/4] s390/kvm: VSIE: stop leaking host addresses Claudio Imbrenda
2020-12-20 9:44 ` David Hildenbrand
2021-01-04 13:58 ` Claudio Imbrenda
2021-01-04 15:36 ` David Hildenbrand
2021-01-19 14:23 ` Janosch Frank
2020-12-18 14:18 ` [PATCH v1 2/4] s390/kvm: extend guest_translate for MVPG interpretation Claudio Imbrenda
2021-01-19 14:59 ` Janosch Frank
2020-12-18 14:18 ` [PATCH v1 3/4] s390/kvm: add kvm_s390_vsie_mvpg_check needed for VSIE MVPG Claudio Imbrenda
2021-01-05 10:31 ` David Hildenbrand
2020-12-18 14:18 ` [PATCH v1 4/4] s390/kvm: VSIE: correctly handle MVPG when in VSIE Claudio Imbrenda
2020-12-20 10:13 ` David Hildenbrand
2021-01-04 15:22 ` Claudio Imbrenda
2021-01-04 16:08 ` David Hildenbrand
2021-01-04 16:36 ` Claudio Imbrenda
2021-01-05 10:17 ` David Hildenbrand
2020-12-20 9:40 ` [PATCH v1 0/4] s390/kvm: fix " David Hildenbrand
2021-01-04 15:23 ` Claudio Imbrenda
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