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SubjectRe: [patch 3/8] Allow a kernel to not be in ring 0.
Chuck Ebbert wrote:
> In-Reply-To: <20060803002518.190834642@xensource.com>
>
> On Wed, 02 Aug 2006 17:25:13 -0700, Jeremy Fitzhardinge wrote:
>
>
>> We allow for the fact that the guest kernel may not run in ring 0.
>> This requires some abstraction in a few places when setting %cs or
>> checking privilege level (user vs kernel).
>>
>
> I made some changes:
>
> a. Added some comments about the SEGMENT_IS_*_CODE() macros.
> b. Added a USER_RPL macro. (You were comparing a value to a mask
> in some places and to the magic number 3 in other places.)
> c. Changed the entry.S tests for LDT stack segment to use the macros.
>

These changes look great. Ack-ed. I had some similar ones before that
never made it from my tree, as I got carried away and tried to unify the
user descriptor conversion functions... someday I'll get to it again.

Zach
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