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authorpatrick <patrick@openbsd.org>2021-03-06 19:30:07 +0000
committerpatrick <patrick@openbsd.org>2021-03-06 19:30:07 +0000
commit484d59cdf3af9d21a3f33595c8b10cf1b439da25 (patch)
tree8d641ff99e81a75759d4ec173efdf86f0d454512 /sys/dev/isa
parentOne major issue talked about in research papers is reducing the overhead (diff)
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Since with the current design there's one device per domain, and one
domain per pagetable, there's no need for a backpointer to the domain in the pagetable entry descriptor. There can't be any other domain. Also since there's no list, no list entry member is needed either. This reduces early allocation to half of the previous size. I think it's possible to reduce it even further and not need a pagetable entry descriptor at all, but I need to think about that a bit more.
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