Il 29/01/2014 00:10, Laszlo Ersek ha scritto:
> (We used to keep the prebuilt page tables too in read-only flash, but
> KVM didn't really like to have them there, because it wanted to write
> the Accessed bits in the page table entries, even if they were all
> pre-set to 1. I can't recall the exact circumstances, but I believe it
> was only a problem when nested paging was supported and enabled on the
> host. See <https://github.com/tianocore/edk2/commit/c90e37b5>.)

It's a requirement of AMD SVM virtualization extensions.  With Intel we 
could make it work.

Paolo

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