Re: [PATCH] 4/5 Combine kvm_init and kvm_init_x86 intoonefunction (Correction V3)

[Carsten Otte <cotte-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>]

I agree with the gernal idea of this patch. Just a few minor things to 
pick on:

Zhang, Xiantao wrote:
> diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
> index 4b2421a..33b4629 100644
> --- a/drivers/kvm/kvm.h
> +++ b/drivers/kvm/kvm.h
> @@ -494,9 +494,9 @@ void vcpu_load(struct kvm_vcpu *vcpu);
>  void vcpu_put(struct kvm_vcpu *vcpu);
> 
> 
> -int kvm_init_x86(struct kvm_x86_ops *ops, unsigned int vcpu_size,
> +int kvm_init(struct kvm_x86_ops *ops, unsigned int vcpu_size,
>  		  struct module *module);
> -void kvm_exit_x86(void);
> +void kvm_exit(void);
Renaming this makes sense to me.

> +	r = kvm_mmu_module_init();
> +	if (r)
> +		goto out4;
This should go to kvm_arch_init. We don't want the shaddow-mmu module 
on s390.

> +	bad_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
> +
> +	if (bad_page == NULL) {
> +		r = -ENOMEM;
> +		goto out;
> +	}
I don't think we need bad_page on s390, maybe I missed something. It's 
only useful for mmu code as far as I can tell.

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