From: Janosch Frank <frankja@linux.ibm.com>
To: linux-s390@vger.kernel.org
Cc: borntraeger@de.ibm.com, gor@linux.ibm.com,
imbrenda@linux.ibm.com, kvm@vger.kernel.org, david@redhat.com
Subject: [PATCH 0/2] s390x: pv: Fixes and improvements
Date: Thu, 3 Sep 2020 09:14:33 -0400 [thread overview]
Message-ID: <20200903131435.2535-1-frankja@linux.ibm.com> (raw)
Using the destroy call instead of the export on a VM shutdown, we can
clear out a protected guest much faster.
The 3f exception can in fact be triggered by userspace and therefore
should not panic the whole system, but send a SIGSEGV to the culprit
process.
Janosch Frank (2):
s390x: uv: Add destroy page call
s390x: Add 3f program exception handler
arch/s390/include/asm/uv.h | 7 +++++++
arch/s390/kernel/pgm_check.S | 2 +-
arch/s390/kernel/uv.c | 21 +++++++++++++++++++++
arch/s390/mm/fault.c | 23 +++++++++++++++++++++++
arch/s390/mm/gmap.c | 2 +-
5 files changed, 53 insertions(+), 2 deletions(-)
--
2.25.1
next reply other threads:[~2020-09-03 14:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 13:14 Janosch Frank [this message]
2020-09-03 13:14 ` [PATCH 1/2] s390x: uv: Add destroy page call Janosch Frank
2020-09-04 10:39 ` Heiko Carstens
2020-09-04 11:38 ` Janosch Frank
2020-09-04 12:10 ` Heiko Carstens
2020-09-07 9:50 ` Janosch Frank
2020-09-03 13:14 ` [PATCH 2/2] s390x: Add 3f program exception handler Janosch Frank
2020-09-03 14:20 ` Christian Borntraeger
2020-09-04 10:35 ` Heiko Carstens
2020-09-04 11:33 ` Janosch Frank
2020-09-04 12:14 ` Heiko Carstens
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