On Tue, Aug 05, 2025 at 02:11:22PM +0200, Jan Beulich wrote: > 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>
Thanks, I didn't carry your RB due to the changes requested by Andrew, that was a bit too much to carry a RB after those. Roger.
