Re: [PATCH 5/8] KVM: PPC: debug stub interface parameter defined

[Paul Mackerras <paulus@samba.org>]

On Wed, Jan 16, 2013 at 01:54:42PM +0530, Bharat Bhushan wrote:
> This patch defines the interface parameter for KVM_SET_GUEST_DEBUG
> ioctl support. Follow up patches will use this for setting up
> hardware breakpoints, watchpoints and software breakpoints.

[snip]

> diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
> index 453a10f..7d5a51c 100644
> --- a/arch/powerpc/kvm/booke.c
> +++ b/arch/powerpc/kvm/booke.c
> @@ -1483,6 +1483,12 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
>  	return r;
>  }
>  
> +int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
> +					 struct kvm_guest_debug *dbg)
> +{
> +	return -EINVAL;
> +}
> +
>  int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
>  {
>  	return -ENOTSUPP;
> diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
> index 934413c..4c94ca9 100644
> --- a/arch/powerpc/kvm/powerpc.c
> +++ b/arch/powerpc/kvm/powerpc.c
> @@ -532,12 +532,6 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
>  #endif
>  }
>  
> -int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
> -                                        struct kvm_guest_debug *dbg)
> -{
> -	return -EINVAL;
> -}
> -

This will break the build for non-book E machines, since
kvm_arch_vcpu_ioctl_set_guest_debug() is referenced from generic code.
You need to add it to arch/powerpc/kvm/book3s.c as well.

Paul.