[Xen-devel] Re: [patch 3/8] Allow a kernel to not be in ring 0.

[Zachary Amsden <zach@xxxxxxxxxx>]

Chuck Ebbert wrote:
> In-Reply-To: <20060803002518.190834642@xxxxxxxxxxxxx>
>
> 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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