On Aug 14, 2006, at 1:20 PM, Hollis Blanchard wrote:
On Sun, 2006-08-13 at 13:55 -0400, Jimi Xenidis wrote:
We need to manage the domain's htab. Ithink we need the following:
- an htab_size variable in the domain script, default being 1/64th
- a Dom0 Op to specify the size when we create a domain
- devtree entry, should we reuse the PAPR property like we
currently do or add our own in /xen? I say we add.
When you say "manage", do you mean you think the hash table size
Currently we allocate the htab as part of creation, unfortunately
that is before we know how much memory beyond the RMA we will give
the domain. I think the easiest thing to do is to explicitly specify
the htab "order" size using a dom0 op from the management side, for
now the default (yet XM/xend/libx specified is fine). this will
result in Xen calling htab_alloc() with the right order.
Is this something we need to worry about in the
near future, or a nice-to-have?
It is not necessary until we give memory beyond RMA, which will is
the next step IMHO after we find all of memory.
What is "nice-to-have" is the ability for the domain-script to
override the default.
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