On 3/22/21 7:56 AM, Roman Bolshakov wrote:
- What does mean that rx might be covered by huge pages? (perhaps I'm missing some context)
Huge pages are where a single level (n-1) page table entry covers the entire span that would be covered by m * level n page table entries.
On x86, this is a 2MB hugepage, vs 512 4kB pages. Most modern cpus support something similar.
See qemu_madvise(..., QEMU_MADV_HUGEPAGE). r~