linux-kernel - Re: [PATCH 02/18] KVM: MMU: Make tdp

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Message-ID: <4B94C0B5.7080507@redhat.com>
Date:	Mon, 08 Mar 2010 11:17:41 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Joerg Roedel <joerg.roedel@....com>
CC:	Marcelo Tosatti <mtosatti@...hat.com>,
	Alexander Graf <agraf@...e.de>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 02/18] KVM: MMU: Make tdp_enabled a mmu-context parameter

On 03/03/2010 09:12 PM, Joerg Roedel wrote:
> This patch changes the tdp_enabled flag from its global
> meaning to the mmu-context. This is necessary for Nested SVM
> with emulation of Nested Paging where we need an extra MMU
> context to shadow the Nested Nested Page Table.
>
>
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index ec891a2..e7bef19 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -254,6 +254,7 @@ struct kvm_mmu {
>   	int root_level;
>   	int shadow_root_level;
>   	union kvm_mmu_page_role base_role;
> +	bool tdp_enabled;
>
>    

This needs a different name, since the old one is still around.  Perhaps 
we could call it parent_mmu and make it a kvm_mmu pointer.

-- 
error compiling committee.c: too many arguments to function

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