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Message-ID: <CAJHc60wx=ZN_5e9Co_s_GyFs4ytLxncbYr2-CzmTUh5DvvuuNQ@mail.gmail.com>
Date:   Wed, 1 Sep 2021 15:43:24 -0700
From:   Raghavendra Rao Ananta <rananta@...gle.com>
To:     Oliver Upton <oupton@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>, Marc Zyngier <maz@...nel.org>,
        James Morse <james.morse@....com>,
        Alexandru Elisei <alexandru.elisei@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Peter Shier <pshier@...gle.com>,
        Ricardo Koller <ricarkol@...gle.com>,
        Reiji Watanabe <reijiw@...gle.com>,
        Jing Zhang <jingzhangos@...gle.com>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH v3 01/12] KVM: arm64: selftests: Add MMIO readl/writel support

On Wed, Sep 1, 2021 at 2:23 PM Oliver Upton <oupton@...gle.com> wrote:
>
> On Wed, Sep 01, 2021 at 09:14:01PM +0000, Raghavendra Rao Ananta wrote:
> > Define the readl() and writel() functions for the guests to
> > access (4-byte) the MMIO region.
> >
> > The routines, and their dependents, are inspired from the kernel's
> > arch/arm64/include/asm/io.h and arch/arm64/include/asm/barrier.h.
> >
> > Signed-off-by: Raghavendra Rao Ananta <rananta@...gle.com>
> > ---
> >  .../selftests/kvm/include/aarch64/processor.h | 45 ++++++++++++++++++-
> >  1 file changed, 44 insertions(+), 1 deletion(-)
> >
> > diff --git a/tools/testing/selftests/kvm/include/aarch64/processor.h b/tools/testing/selftests/kvm/include/aarch64/processor.h
> > index c0273aefa63d..3cbaf5c1e26b 100644
> > --- a/tools/testing/selftests/kvm/include/aarch64/processor.h
> > +++ b/tools/testing/selftests/kvm/include/aarch64/processor.h
> > @@ -130,6 +130,49 @@ void vm_install_sync_handler(struct kvm_vm *vm,
> >       val;                                                              \
> >  })
> >
> > -#define isb()        asm volatile("isb" : : : "memory")
> > +#define isb()                asm volatile("isb" : : : "memory")
>
> Is this a stray diff?
>
Oh no, that's intentional. Just trying to align with others below.

Regards,
Raghavendra
> Otherwise:
>
> Reviewed-by: Oliver Upton <oupton@...gle.com>

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