On 05.08.2025 11:52, Roger Pau Monne wrote: > There are four performance critical PDX conversion helpers that do the PFN > to/from PDX and the physical addresses to/from directmap offsets > translations. > > In the absence of an active PDX compression, those functions would still do > the calculations needed, just to return the same input value as no > translation is in place and hence PFN and PDX spaces are identity mapped. > > To reduce the overhead of having to do the pointless calculations allow > architectures to implement the translation helpers in a per-arch header. > Rename the existing conversion functions to add a trailing _xlate suffix, > so that the per-arch headers can define the non suffixed versions. > > Currently only x86 implements meaningful custom handlers to short circuit > the translation when not active, using asm goto. Other architectures use > generic macros that map the non-xlate to the xlate variants to keep the > previous behavior. > > Signed-off-by: Roger Pau Monné <roger....@citrix.com>
Once again: Reviewed-by: Jan Beulich <jbeul...@suse.com> Jan
