linux-kernel - Re: [PATCH v4 1/3] KVM: arm/arm64: unset CONFIG_HAVE_KVM

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Date:	Mon, 24 Nov 2014 11:09:45 +0000
From:	Will Deacon <will.deacon@....com>
To:	Eric Auger <eric.auger@...aro.org>
Cc:	"eric.auger@...com" <eric.auger@...com>,
	"christoffer.dall@...aro.org" <christoffer.dall@...aro.org>,
	Marc Zyngier <Marc.Zyngier@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"kvmarm@...ts.cs.columbia.edu" <kvmarm@...ts.cs.columbia.edu>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"alex.williamson@...hat.com" <alex.williamson@...hat.com>,
	"joel.schopp@....com" <joel.schopp@....com>,
	"kim.phillips@...escale.com" <kim.phillips@...escale.com>,
	"paulus@...ba.org" <paulus@...ba.org>,
	"gleb@...nel.org" <gleb@...nel.org>,
	"pbonzini@...hat.com" <pbonzini@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"patches@...aro.org" <patches@...aro.org>,
	"a.motakis@...tualopensystems.com" <a.motakis@...tualopensystems.com>,
	"a.rigo@...tualopensystems.com" <a.rigo@...tualopensystems.com>,
	"john.liuli@...wei.com" <john.liuli@...wei.com>,
	"ming.lei@...onical.com" <ming.lei@...onical.com>,
	"feng.wu@...el.com" <feng.wu@...el.com>
Subject: Re: [PATCH v4 1/3] KVM: arm/arm64: unset CONFIG_HAVE_KVM_IRQCHIP

On Sun, Nov 23, 2014 at 05:56:58PM +0000, Eric Auger wrote:
> CONFIG_HAVE_KVM_IRQCHIP is needed to support IRQ routing (along
> with irq_comm.c and irqchip.c usage). This is not the case for
> arm/arm64 currently.
> 
> This patch unsets the flag for both arm and arm64.
> 
> Signed-off-by: Eric Auger <eric.auger@...aro.org>
> ---

The arm64 change is fine by me. I assume this will go via the kvm tree
eventually?

  Acked-by: Will Deacon <will.deacon@....com>

Will

>  arch/arm/kvm/Kconfig   | 2 --
>  arch/arm64/kvm/Kconfig | 1 -
>  2 files changed, 3 deletions(-)
> 
> diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
> index 466bd29..9f581b1 100644
> --- a/arch/arm/kvm/Kconfig
> +++ b/arch/arm/kvm/Kconfig
> @@ -55,7 +55,6 @@ config KVM_ARM_MAX_VCPUS
>  config KVM_ARM_VGIC
>  	bool "KVM support for Virtual GIC"
>  	depends on KVM_ARM_HOST && OF
> -	select HAVE_KVM_IRQCHIP
>  	default y
>  	---help---
>  	  Adds support for a hardware assisted, in-kernel GIC emulation.
> @@ -63,7 +62,6 @@ config KVM_ARM_VGIC
>  config KVM_ARM_TIMER
>  	bool "KVM support for Architected Timers"
>  	depends on KVM_ARM_VGIC && ARM_ARCH_TIMER
> -	select HAVE_KVM_IRQCHIP
>  	default y
>  	---help---
>  	  Adds support for the Architected Timers in virtual machines
> diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
> index 8ba85e9..279e1a0 100644
> --- a/arch/arm64/kvm/Kconfig
> +++ b/arch/arm64/kvm/Kconfig
> @@ -50,7 +50,6 @@ config KVM_ARM_MAX_VCPUS
>  config KVM_ARM_VGIC
>  	bool
>  	depends on KVM_ARM_HOST && OF
> -	select HAVE_KVM_IRQCHIP
>  	---help---
>  	  Adds support for a hardware assisted, in-kernel GIC emulation.
>  
> -- 
> 1.9.1
> 
> 
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