CVSROOT: /cvs
Module name: src
Changes by: hshoe...@cvs.openbsd.org 2025/08/04 06:14:16
Modified files:
sys/arch/amd64/amd64: locore0.S
Log message:
Handle #VC in locore0 due to dr[67] write intercepts
When running on Linux/KVM with SEV-ES enabled, writes to dr[67]
raise a #VC trap. We have no means to emulate writes to dr[67]
unsing the MSR protocol. Thus skip these instructions, when #VC
is raised in locore0.
On vmm(4)/vmd(8) we are runnign in compat mode and writes to dr[67]
are not intercepted; thus only adjust the 32-bit case.
ok sf mlarkin
