* [email protected] ([email protected]) wrote:
> Virtualization aware Linux kernels may need to redefine functions which write
> to hardware page tables at the sub-architecture layer. Previously, this was
> done by encapsulation in a split mach-xxx/pgtable-{2|3}level-ops.h file, but
> having 8 pgtable header files is simply unacceptable. This goes some ways
> towards cleaning that up by deprecating the 2/3 level subarch functions.
> This is accomplished by using __HAVE_ARCH_FUNC macros, and allowing
> one sub-arch file, pgtable-ops.h, which gets included before any functions
> which write to hardware page tables, allowing the sub-architecture to override
> any or all definitions it needs.
This looks like a better tradeoff.
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