From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: proposed interface change for setting the ldt
Date: Sat, 19 Aug 2006 13:18:58 +0100
Message-ID: <44E701B2.8050005@goop.org>
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To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Chris Wright <chrisw@sous-sol.org>, Virtualization Mailing List <virtualization@lists.osdl.org>
List-Id: virtualization@lists.linuxfoundation.org

Rusty Russell wrote:
> It sounds fine to me, although I'd like to see the patch.  I don't have
> anything against higher-level abstractions, if it helps any hypervisor,
> as long as it doesn't warp the kernel code.  And if most hypervisors and
> native break it down the same way, well, we can always create helpers.
>   =


Doing it this way does save a lot of complexity in the Xen case, which =

would otherwise have to:

   1. unpack the descriptor
   2. if it's an LDT, save it off in a per-cpu structure
   3. when load_ldt_desc is called, look up the structure, extract the
      base+size of the ldt, and make a hypercall to set the ldt

vs

   1. set the ldt


    J