CVSROOT: /cvs
Module name: src
Changes by: guent...@cvs.openbsd.org 2018/10/03 23:00:40
Modified files:
sys/arch/amd64/amd64: acpi_wakecode.S cpu.c genassym.cf
identcpu.c lapic.c locore.S pmap.c
vector.S
sys/arch/amd64/include: codepatch.h cpufunc.h i82489var.h pmap.h
Log message:
Use PCIDs where they and the INVPCID instruction are available.
This uses one PCID for kernel threads, one for the U+K tables of
normal processes, one for the matching U-K tables (when meltdown
in effect), and one for temporary mappings when poking other
processes. Some further tweaks are envisioned but this is good
enough to provide more separation and has (finally) been stable
under ports testing.
lots of ports testing and valid complaints from naddy@ and sthen@
feedback from mlarkin@ and sf@
