Re: [PATCH v4 02/12] KVM: arm/arm64: extend arch CAP checks to allow per-VM capabilities

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On 03/26/2016 03:14 AM, Andre Przywara wrote:
> KVM capabilities can be a per-VM property, though ARM/ARM64 currently
> does not pass on the VM pointer to the architecture specific
> capability handlers.
> Add a "struct kvm*" parameter to those function to later allow proper
> per-VM capability reporting.
> 
> Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
> ---
>  arch/arm/include/asm/kvm_host.h   | 2 +-
>  arch/arm/kvm/arm.c                | 2 +-
>  arch/arm64/include/asm/kvm_host.h | 2 +-
>  arch/arm64/kvm/reset.c            | 2 +-
>  4 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
> index 3850701..494b004 100644
> --- a/arch/arm/include/asm/kvm_host.h
> +++ b/arch/arm/include/asm/kvm_host.h
> @@ -265,7 +265,7 @@ static inline void __cpu_init_stage2(void)
>  	kvm_call_hyp(__init_stage2_translation);
>  }
>  
> -static inline int kvm_arch_dev_ioctl_check_extension(long ext)
> +static inline int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext)
>  {
>  	return 0;
>  }
> diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
> index 5b9d9e3..e2e9be2 100644
> --- a/arch/arm/kvm/arm.c
> +++ b/arch/arm/kvm/arm.c
> @@ -205,7 +205,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
>  		r = KVM_MAX_VCPUS;
>  		break;
>  	default:
> -		r = kvm_arch_dev_ioctl_check_extension(ext);
> +		r = kvm_arch_dev_ioctl_check_extension(kvm, ext);
>  		break;
>  	}
>  	return r;
> diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
> index 71fa6fe..2cdd7ae 100644
> --- a/arch/arm64/include/asm/kvm_host.h
> +++ b/arch/arm64/include/asm/kvm_host.h
> @@ -46,7 +46,7 @@
>  
>  int __attribute_const__ kvm_target_cpu(void);
>  int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
> -int kvm_arch_dev_ioctl_check_extension(long ext);
> +int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext);
>  
>  struct kvm_arch {
>  	/* The VMID generation used for the virt. memory system */
> diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
> index 9677bf0..2ba7c8d 100644
> --- a/arch/arm64/kvm/reset.c
> +++ b/arch/arm64/kvm/reset.c
> @@ -63,7 +63,7 @@ static bool cpu_has_32bit_el1(void)
>   * We currently assume that the number of HW registers is uniform
>   * across all CPUs (see cpuinfo_sanity_check).
>   */
> -int kvm_arch_dev_ioctl_check_extension(long ext)
> +int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext)
>  {
>  	int r;
>  
> 

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