From: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
To: Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>
Cc: Janis Schoetterl-Glausch <scgl@linux.ibm.com>,
David Hildenbrand <david@redhat.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
kvm@vger.kernel.org, linux-s390@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] KVM: s390: Fix handle_sske page fault handling
Date: Fri, 22 Oct 2021 13:29:13 +0200 [thread overview]
Message-ID: <20211022112913.211986-1-scgl@linux.ibm.com> (raw)
Retry if fixup_user_fault succeeds.
The same issue in handle_pfmf was fixed by
a11bdb1a6b78 (KVM: s390: Fix pfmf and conditional skey emulation).
Fixes: bd096f644319 ("KVM: s390: Add skey emulation fault handling")
Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
---
arch/s390/kvm/priv.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 53da4ceb16a3..417154b314a6 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -397,6 +397,8 @@ static int handle_sske(struct kvm_vcpu *vcpu)
mmap_read_unlock(current->mm);
if (rc == -EFAULT)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+ if (rc == -EAGAIN)
+ continue;
if (rc < 0)
return rc;
start += PAGE_SIZE;
--
2.25.1
next reply other threads:[~2021-10-22 11:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-22 11:29 Janis Schoetterl-Glausch [this message]
2021-10-22 12:00 ` [PATCH] KVM: s390: Fix handle_sske page fault handling Christian Borntraeger
[not found] ` <20211022152648.26536-1-scgl@linux.ibm.com>
2021-10-25 7:08 ` Christian Borntraeger
2021-10-22 12:11 ` Claudio Imbrenda
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