On 05.05.2020 20:25, Andrew Cooper wrote: > AMD Fam15h processors introduced the flush-by-asid feature, for more fine > grain flushing purposes. > > Flushing everything including ASID 0 (i.e. Xen context) is an an unnecesserily > large hammer, and never necessary in the context of guest TLBs needing > invalidating. > > When available, use TLB_CTRL_FLUSH_ASID in preference to TLB_CTRL_FLUSH_ALL. > > Signed-off-by: Andrew Cooper <[email protected]>
Reviewed-by: Jan Beulich <[email protected]>
