linux-kernel - Re: [PATCH v2 2/5] KVM: s390: selftests: Add regression tests for PRNO, KDSA and KMA crypto subfunctions

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Message-Id: <D3LEPMSO7ZJS.RQG7NGR5N9GB@linux.ibm.com>
Date: Wed, 21 Aug 2024 09:21:28 +0200
From: "Christoph Schlameuss" <schlameuss@...ux.ibm.com>
To: "Hariharan Mari" <hari55@...ux.ibm.com>, <linux-kselftest@...r.kernel.org>
Cc: <linux-kernel@...r.kernel.org>, <kvm@...r.kernel.org>, <shuah@...nel.org>,
        <frankja@...ux.ibm.com>, <borntraeger@...ux.ibm.com>,
        <imbrenda@...ux.ibm.com>, <david@...hat.com>, <pbonzini@...hat.com>
Subject: Re: [PATCH v2 2/5] KVM: s390: selftests: Add regression tests for
 PRNO, KDSA and KMA crypto subfunctions

On Tue Aug 20, 2024 at 8:48 AM CEST, Hariharan Mari wrote:
> Extend the existing regression test framework for s390x CPU subfunctions
> to include tests for the PRNO (Perform Random Number Operation), KDSA
> (Compute Digital Signature Authentication) and KMA (Cipher Message with
> Authentication) crypto functions.
>
> The test procedure follows the established pattern:
>
> 1. Obtain KVM_S390_VM_CPU_MACHINE_SUBFUNC attribute for the VM.
> 2. Execute PRNO, KDSA and KMA instructions.
> 3. Compare KVM-reported results with direct instruction execution results.
>
> Suggested-by: Janosch Frank <frankja@...ux.ibm.com>
> Signed-off-by: Hariharan Mari <hari55@...ux.ibm.com>
> Reviewed-by: Janosch Frank <frankja@...ux.ibm.com>

LGTM

Reviewed-by: Christoph Schlameuss <schlameuss@...ux.ibm.com>

> ---
>  .../kvm/s390x/cpumodel_subfuncs_test.c        | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)

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