linux-kernel - Re: [PATCH v4.1 1/3] KVM: selftests: Add arch ucall.h and inline simple arch hooks

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Date:   Tue, 1 Aug 2023 11:21:48 +0200
From:   Andrew Jones <ajones@...tanamicro.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>, Marc Zyngier <maz@...nel.org>,
        Oliver Upton <oliver.upton@...ux.dev>,
        Anup Patel <anup@...infault.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Janosch Frank <frankja@...ux.ibm.com>,
        Claudio Imbrenda <imbrenda@...ux.ibm.com>, kvm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
        kvm-riscv@...ts.infradead.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Aaron Lewis <aaronlewis@...gle.com>
Subject: Re: [PATCH v4.1 1/3] KVM: selftests: Add arch ucall.h and inline
 simple arch hooks

On Mon, Jul 31, 2023 at 01:30:24PM -0700, Sean Christopherson wrote:
> Add an architecture specific ucall.h and inline the simple arch hooks,
> e.g. the init hook for everything except ARM, and the actual "do ucall"
> hook for everything except x86 (which should be simple, but temporarily
> isn't due to carrying a workaround).
> 
> Having a per-arch ucall header will allow adding a #define for the
> expected KVM exit reason for a ucall that is colocated (for everything
> except x86) with the ucall itself.
> 
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>
> ---
>  .../selftests/kvm/include/aarch64/ucall.h      | 18 ++++++++++++++++++
>  .../selftests/kvm/include/riscv/ucall.h        | 18 ++++++++++++++++++
>  .../selftests/kvm/include/s390x/ucall.h        | 17 +++++++++++++++++
>  .../selftests/kvm/include/ucall_common.h       |  1 +
>  .../selftests/kvm/include/x86_64/ucall.h       | 11 +++++++++++
>  .../testing/selftests/kvm/lib/aarch64/ucall.c  | 11 +----------
>  tools/testing/selftests/kvm/lib/riscv/ucall.c  | 11 -----------
>  tools/testing/selftests/kvm/lib/s390x/ucall.c  | 10 ----------
>  tools/testing/selftests/kvm/lib/x86_64/ucall.c |  4 ----
>  9 files changed, 66 insertions(+), 35 deletions(-)
>  create mode 100644 tools/testing/selftests/kvm/include/aarch64/ucall.h
>  create mode 100644 tools/testing/selftests/kvm/include/riscv/ucall.h
>  create mode 100644 tools/testing/selftests/kvm/include/s390x/ucall.h
>  create mode 100644 tools/testing/selftests/kvm/include/x86_64/ucall.h
>

Reviewed-by: Andrew Jones <ajones@...tanamicro.com>