From: sashiko-bot@kernel.org
To: "Aaron M. Brown" <aaronmbr@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, "Heiko Carstens" <hca@linux.ibm.com>,
"Vasily Gorbik" <gor@linux.ibm.com>,
"Alexander Gordeev" <agordeev@linux.ibm.com>,
"Christian Borntraeger" <borntraeger@linux.ibm.com>
Subject: Re: [PATCH 4/6] KVM: s390: selftests: Add ucontrol helpers and instruction tests
Date: Tue, 10 Nov 2026 11:24:31 +0000 [thread overview]
Message-ID: <sashiko-outbox-206934@kernel.org> (raw)
In-Reply-To: <20261110111619.61760-5-aaronmbr@linux.ibm.com>
> Add helpers to run a guest on a ucontrol VM and use them to test
> instruction intercepts handled in userspace.
>
> manual_kvm_creation_execution() creates the VM and vCPU, maps 4 MiB
> with KVM_S390_UCAS_MAP, sets the PSW and r15, and runs the vCPU. r15
> must be valid because C guest functions adjust it in their prologue.
>
> ucontrol_available() checks KVM_CAP_S390_UCONTROL and CAP_SYS_ADMIN.
> Tests that need it are skipped, with a reason from the new skip_reason
> field.
>
> Tests added: STSI, TSCH and STSCH. Each must cause ICPT_INST with the
> expected opcode.
>
> Co-developed-by: Nitya Khamar <nkhamar@linux.ibm.com>
> Signed-off-by: Nitya Khamar <nkhamar@linux.ibm.com>
> Signed-off-by: Aaron M. Brown <aaronmbr@linux.ibm.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261110111619.61760-1-aaronmbr@linux.ibm.com?part=4
next prev parent reply other threads:[~2026-11-10 11:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-10 11:16 [PATCH 0/6] KVM: s390: selftests: Add selftests for KVM exits on s390x Aaron M. Brown
2026-11-10 11:16 ` [PATCH 1/6] KVM: s390: selftests: Add kvm_exit test for instruction intercepts Aaron M. Brown
2026-11-10 11:30 ` sashiko-bot
2026-11-10 11:16 ` [PATCH 2/6] KVM: s390: selftests: Add SIGP and program exception tests Aaron M. Brown
2026-11-10 11:24 ` sashiko-bot
2026-11-10 11:16 ` [PATCH 3/6] KVM: s390: selftests: Add wait state and VM lifecycle tests Aaron M. Brown
2026-11-10 11:21 ` sashiko-bot
2026-11-10 11:16 ` [PATCH 4/6] KVM: s390: selftests: Add ucontrol helpers and instruction tests Aaron M. Brown
2026-11-10 11:24 ` sashiko-bot [this message]
2026-11-10 11:16 ` [PATCH 5/6] KVM: s390: selftests: Add ucontrol storage key and immediate exit tests Aaron M. Brown
2026-11-10 11:25 ` sashiko-bot
2026-11-10 11:16 ` [PATCH 6/6] KVM: s390: selftests: Add clock comparator interrupt test Aaron M. Brown
2026-11-10 11:23 ` sashiko-bot
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