On 27/09/2019 15:14, Jan Beulich wrote:
On 27.09.2019 16:02, hong...@amazon.com wrote:
But then why do the initial so many patches (inherited from Wei)
convert from domheap to xenheap allocations at all? If your
approach is to be at least an intermediate goal, then I think the
order of changes should be such that on-demand mapping of xenheap
pages occurs first, and then the xenheap -> domheap conversion
can happen in basically arbitrarily small steps.
Also I have tested Wei's patches with fixes. It is pretty stable against my
setup because the direct map has not been actually removed. I am able to run
XTF tests, boot dom0, launch, restart and destroy guests without breakage. From
a stability point of view, it probably makes more sense for Wei's patches to go
in first. From the reviews, it looks like my patches to actually remove the
direct map can benefit from more RFCs, and can be separated from Wei's into a
second batch.
Hongyan
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