[Xen-devel] Re: [PATCH 2/6] Change the boot allocator function to support memory add

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 28/06/2009 14:24, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> wrote:

>> The undelrying implementation ideas may be okay, but calling these
>> extensions to the 'boot allocator' makes no sense. The boot
>> allocator only
>> exists during boot. The fact that the bitmap it uses persists
>> beyond boot is
>> an implementation detail. Perhaps you just need to change the
> 
> So can I understand the allocator bitmap (i.e. those for map_free/map_call) as
> something not just about boot allocator, but for generic bitmap to remember
> the page allocation status?
> Maybe we can just using one bit in page_info to indicate if page is allocated
> in future?

I think the PGC_ flags could be extended to do this, yes. Maybe I will look
into that.

 -- Keir



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