[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH] VMX: Eliminate cr3 store/load vmexit when UG enabled

>>> On 29.10.13 at 02:02, "Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx> wrote:
> Jan Beulich wrote on 2013-10-28:
>>>>> On 24.10.13 at 06:41, "Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx> wrote:
>>> Andrew Cooper wrote on 2013-10-23:
>>>> On 23/10/13 08:39, Yang Zhang wrote:
>>>>> From: Yang Zhang <yang.z.zhang@xxxxxxxxx>
>>>>> With the feature of unrestricted guest, there should no vmexit be
>>>>> triggered when guest accesses the cr3 in non-paging mode.
>>>>> Signed-off-by: Yang Zhang <yang.z.zhang@xxxxxxxxx>
>>>> You English here confused me for a bit.  I presume you mean "Xen
>>>> should not cause vmexits for cr3 accesses in unrestricted guests",
>>>> whereas the current meaning implies that hardware wont generate a
>>>> vmexit for cr3 accesses for unrestricted guests (which is not correct
>>>> according to the SDM).
>>> Apology for my poor English. Yes, your understanding is right.
>> So assuming we'll get an ack from one of the VMX maintainers, should
>> this then be committed with the suggested change to the description?
> Sure. If no need to revise the current patch, please help to commit it with 
> the comments Paolo suggested.

Andrew you mean?


Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.