Re: [Xen-devel] [PATCH] x86/xen: Initialize cr4 shadow for 64-bit PV(H) guests

From: Luis R. Rodriguez
Date: Tue Mar 03 2015 - 00:35:41 EST


On Mon, Feb 23, 2015 at 9:09 AM, David Vrabel <david.vrabel@xxxxxxxxxx> wrote:
> On 23/02/15 16:01, Boris Ostrovsky wrote:
>> Commit 1e02ce4cccdc ("x86: Store a per-cpu shadow copy of CR4")
>> introduced CR4 shadows.
>>
>> These shadows are initialized in early boot code. The commit missed
>> initialization for 64-bit PV(H) guests that this patch adds.
>
> Applied to stable/for-linus-4.0, thanks.
>
> Boris, can you kick of a set of tests on this branch, please?

Do we know worst case what should blow up without this commit ?

Luis
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