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pg_arch_1
2005 Dec 07
6
PG_arch_1
Xenlinux uses a special architecture-dependent bit in the page table,
called PG_arch_1 to indicate that a page is "foreign" (PG_foreign).
It also apparently uses it to determine if a page is pinned (PG_pinned).
Linux/ia64 (and apparently Linux/ppc and Linux/ppc64) use the PG_arch_1
bit for other purposes. On Linux/ia64, it is used to determine if
the instruction cache needs to be