linux-kernel - Re: [PATCH v2 7/9] KVM: improve arch vcpu request defining

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Date:   Thu, 27 Apr 2017 14:11:02 +0200
From:   Cornelia Huck <cornelia.huck@...ibm.com>
To:     Radim Krčmář <rkrcmar@...hat.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        Christoffer Dall <cdall@...aro.org>,
        Andrew Jones <drjones@...hat.com>,
        Marc Zyngier <marc.zyngier@....com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        James Hogan <james.hogan@...tec.com>,
        Paul Mackerras <paulus@...abs.org>
Subject: Re: [PATCH v2 7/9] KVM: improve arch vcpu request defining

On Wed, 26 Apr 2017 22:32:25 +0200
Radim Krčmář <rkrcmar@...hat.com> wrote:

> From: Andrew Jones <drjones@...hat.com>
> 
> Marc Zyngier suggested that we define the arch specific VCPU request
> base, rather than requiring each arch to remember to start from 8.
> That suggestion, along with Radim Krčmář's recent VCPU request flag
> addition, snowballed into defining something of an arch VCPU request
> defining API.
> 
> No functional change.
> 
> (Looks like x86 is running out of arch VCPU request bits.  Maybe
>  someday we'll need to extend to 64.)
> 
> Signed-off-by: Andrew Jones <drjones@...hat.com>
> ---
>  arch/arm/include/asm/kvm_host.h     |  2 +-
>  arch/arm64/include/asm/kvm_host.h   |  2 +-
>  arch/powerpc/include/asm/kvm_host.h |  4 ++--
>  arch/s390/include/asm/kvm_host.h    |  6 ++---
>  arch/x86/include/asm/kvm_host.h     | 44 ++++++++++++++++++-------------------
>  include/linux/kvm_host.h            |  8 +++++++
>  6 files changed, 37 insertions(+), 29 deletions(-)

Reviewed-by: Cornelia Huck <cornelia.huck@...ibm.com>