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xen-ia64-devel
RE: [Xen-ia64-devel][PATCH] optimization for windows
>-----Original Message-----
>From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-ia64-devel-
>bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Alex Williamson
>Subject: RE: [Xen-ia64-devel][PATCH] optimization for windows
>
>On Fri, 2007-04-27 at 17:36 +0800, Xu, Anthony wrote:
>> >Wouldn't it be better to have some generic features like "region x
identity
>> >mapping with attributes y" which can be set via DomU configuration
file?
>> It is not convenient for user.
>> And user can't know this information, if we provide this interface to
user.
>> User may be confused, and if user uses this configuration
incorrectly, it will
>> break guest.
>
> I think we need to be careful not to hide too many assumptions about
>the guest in Xen as well. We can't be certain another OS won't use
>region 7 like this at some point. I agree that a requiring a user to
>know certain memory layout attributes is way too low level, but what
>about a simple flag like "guest = windows". Yes, it's not automatic
>like the code is now, but it feels more supportable. Thanks,
>
Preferably not to do "guest = windows" from user configuration since
this would create validation overhead. But agree the way "IS_WINDOWS"
got setup in the patch should be improved!
-Fred
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