From: Claudio Imbrenda <imbrenda@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org,
frankja@linux.ibm.com, borntraeger@de.ibm.com, david@redhat.com,
nrb@linux.ibm.com, seiden@linux.ibm.com, nsg@linux.ibm.com,
schlameuss@linux.ibm.com, hca@linux.ibm.com
Subject: [PATCH v2 0/1] KVM: s390: fix a newly introduced bug
Date: Wed, 26 Feb 2025 13:37:24 +0100 [thread overview]
Message-ID: <20250226123725.247578-1-imbrenda@linux.ibm.com> (raw)
Fix race when making a page secure (hold pte lock again)
This should fix the issues I have seen, which I think/hope are also the same
issues that David found.
v1->v2:
* major refactoring
* walk the page tables only once
* when importing, manually fault in pages if needed
Claudio Imbrenda (1):
KVM: s390: pv: fix race when making a page secure
arch/s390/include/asm/uv.h | 2 +-
arch/s390/kernel/uv.c | 105 ++++++++++++++++++++++++++++++++++---
arch/s390/kvm/gmap.c | 99 +++-------------------------------
arch/s390/kvm/kvm-s390.c | 25 +++++----
4 files changed, 121 insertions(+), 110 deletions(-)
--
2.48.1
next reply other threads:[~2025-02-26 12:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-26 12:37 Claudio Imbrenda [this message]
2025-02-26 12:37 ` [PATCH v2 1/1] KVM: s390: pv: fix race when making a page secure Claudio Imbrenda
2025-02-26 15:05 ` David Hildenbrand
2025-02-26 16:58 ` Claudio Imbrenda
2025-02-26 17:01 ` David Hildenbrand
2025-02-26 17:26 ` Claudio Imbrenda
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