linux-kernel - Re: [PATCH 0/7] KVM support for 1GB pages v2

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Message-ID: <49F6D767.9050801@redhat.com>
Date:	Tue, 28 Apr 2009 13:16:07 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Joerg Roedel <joerg.roedel@....com>
CC:	Marcelo Tosatti <marcelo@...ck.or>, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org
Subject: Re: [PATCH 0/7] KVM support for 1GB pages v2

Joerg Roedel wrote:
> Hi,
>
> this is the second version of the patches implementing support for 1GB
> pages in KVM. There are too many changes to the first version to mention
> them all here. The core support was rewritten to work with mapping
> levels instead of page sizes. This was the main part of the change.
> The patches still only support KVM with nested paging enabled

What is missing to get shadow paging working with this?  I don't think 
it's particularly important (it will be pretty hard to find a GB page 
without any shadowed pages in it), but I don't like arbitrary constraints.

walk_addr() needs to change to support GB pages, did I miss it in the 
patchset?

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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