From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shannon Zhao <zhaoshenglong@huawei.com>
Subject: Re: [RFC PATCH 4/5] ARM: enable linking against eventfd and irqchip
Date: Sat, 29 Nov 2014 15:18:15 +0800
Message-ID: <54797337.2050001@huawei.com>
References: <20141124212240.10605.46770.stgit@i3820> <20141124212706.10605.50148.stgit@i3820>
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Cc: <tech@virtualopensystems.com>,
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To: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>,
	<kvm@vger.kernel.org>, <eric.auger@linaro.org>,
	<marc.zyngier@arm.com>, <andre.przywara@arm.com>,
	<kvmarm@lists.cs.columbia.edu>, <christoffer.dall@linaro.org>
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On 2014/11/25 5:27, Nikolay Nikolaev wrote:
> This enables compilation of the eventfd feature on ARM.
> 

Only enable on ARM? I think we should enable it on ARM64 as well because the eventfd featrue is common for ARM32 and ARM64.

Thanks,
Shannon

> Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
> ---
>  arch/arm/kvm/Kconfig  |    1 +
>  arch/arm/kvm/Makefile |    2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
> index 466bd29..a4b0312 100644
> --- a/arch/arm/kvm/Kconfig
> +++ b/arch/arm/kvm/Kconfig
> @@ -20,6 +20,7 @@ config KVM
>  	bool "Kernel-based Virtual Machine (KVM) support"
>  	select PREEMPT_NOTIFIERS
>  	select ANON_INODES
> +	select HAVE_KVM_EVENTFD
>  	select HAVE_KVM_CPU_RELAX_INTERCEPT
>  	select KVM_MMIO
>  	select KVM_ARM_HOST
> diff --git a/arch/arm/kvm/Makefile b/arch/arm/kvm/Makefile
> index 443b8be..539c1a5 100644
> --- a/arch/arm/kvm/Makefile
> +++ b/arch/arm/kvm/Makefile
> @@ -15,7 +15,7 @@ AFLAGS_init.o := -Wa,-march=armv7-a$(plus_virt)
>  AFLAGS_interrupts.o := -Wa,-march=armv7-a$(plus_virt)
>  
>  KVM := ../../../virt/kvm
> -kvm-arm-y = $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o
> +kvm-arm-y = $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o
>  
>  obj-y += kvm-arm.o init.o interrupts.o
>  obj-y += arm.o handle_exit.o guest.o mmu.o emulate.o reset.o
> 
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