linux-kernel - Re: [V0 PATCH] xen/pvh: set some cr flags upon vcpu start

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Message-ID: <dd8e2ed3-4ddf-4f03-957f-902361234a66@email.android.com>
Date:	Fri, 17 Jan 2014 22:40:19 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Mukesh Rathor <mukesh.rathor@...cle.com>
CC:	roger.pau@...rix.com, Xen-devel@...ts.xensource.com,
	linux-kernel@...r.kernel.org
Subject: Re: [V0 PATCH] xen/pvh: set some cr flags upon vcpu start

Mukesh Rathor <mukesh.rathor@...cle.com> wrote:
>Konrad,
>
>The following patch sets the bits in CR0 and CR4. Please note, I'm
>working
>on patch for the xen side. The CR4 features are not currently exported
>to a PVH guest. 

The patch should really have been split in two - one for CR0 and one for CR4.

Especially as the ramifications of enabling PGE are much more complex. For example - there is a need to  fix up the __supported_pte_mask to allow one to use PAGE_GLOBAL. There might be other things too that need tweaking.

>
>Roger, I added your SOB line, please lmk if I need to add anything
>else.
>
>This patch was build on top of a71accb67e7645c68061cec2bee6067205e439fc
>in
>konrad devel/pvh.v13 branch.

Pls use #linux-next at this stage.

Thank you!
>
>thanks
>Mukesh


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