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From: Janosch Frank <frankja@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: linux-s390@vger.kernel.org, imbrenda@linux.ibm.com,
	borntraeger@linux.ibm.com, hca@linux.ibm.com
Subject: [PATCH 0/3] KVM: s390: Additional LPSW/E fixes
Date: Thu, 23 Apr 2026 12:36:01 +0000	[thread overview]
Message-ID: <20260423123902.14663-1-frankja@linux.ibm.com> (raw)

Another round of fixups for LPSW/E since Heiko found a problem with my
fix and I found another pre-existing issue where the ilc is not being
set to 0.

To verify my fixes I've added code to the bear test which loads an
invalid PSW and checks the bear and ilc values. Due to the current
s390 lib state I had to resort to real address memory accesses.

I'd expect the fixes to arrive via master while the test moves through
next landing after Christian's cpumodel change.

I've added \n two the first fix to make the code a bit more readable.

Janosch Frank (3):
  KVM: s390: selftests: Add load psw bear test
  kvm: s390: Fix LPSW/E early exception bear behavior
  kvm: s390: Fix lpsw/e spec exception ilc reporting

 arch/s390/kvm/priv.c                     |  20 +-
 tools/testing/selftests/kvm/Makefile.kvm |   1 +
 tools/testing/selftests/kvm/s390/bear.c  | 250 +++++++++++++++++++++++
 3 files changed, 267 insertions(+), 4 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/s390/bear.c

-- 
2.51.0


             reply	other threads:[~2026-04-23 12:39 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-23 12:36 Janosch Frank [this message]
2026-04-23 12:36 ` [PATCH 1/3] KVM: s390: selftests: Add load psw bear test Janosch Frank
2026-04-23 12:36 ` [PATCH 2/3] kvm: s390: Fix LPSW/E early exception bear behavior Janosch Frank
2026-04-23 12:36 ` [PATCH 3/3] kvm: s390: Fix lpsw/e spec exception ilc reporting Janosch Frank
2026-04-23 13:36   ` Heiko Carstens
2026-04-23 14:12     ` Janosch Frank

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