Antonio Vargas wrote:
I could do that, but I feel that's more brittle. I might need more (or
other) fields later on. It will also cost me more pushes on the stack
(no real performance or space impact, just C64-era frugality).
maybe thats the mindsent needed to make these virtual cpu patches
without eating away all the cpu power with more than needed
abstractions ;)
Unfortunately not. Saving a cycle or two doesn't help when a vm exit
costs thousands of cycles, and worse, kills your tlb.
The key is eliminating unnecessary exits. I have plans for massively
optimizing the mmu virtualization, and the next AMD core will do that in
hardware (look for a "nested page tables" sticker before you buy).
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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