CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2026/08/19 02:56:28
Modified files:
sys/arch/amd64/amd64: bus_space.c locore0.S machdep.c trap.c
vector.S vmm_machdep.c
sys/arch/amd64/conf: GENERIC RAMDISK_CD VMBOOT files.amd64
sys/arch/amd64/include: ghcb.h
Log message:
SEV: Add option AMDSEV
To allow building the small RAMDISK kernel without SEV-* support
introduce the option AMDSEV.
When running a non-SEV kernel as a SEV guest we will raise a #VC
exception on the very first CPUID instruction. To allow a somehwat
graceful termination keep the locore0 #VC trap handler, fall through
to the termination code and issue TERMINATION request to the
hypervisor. In all other environments #VC will never be raised and
the kernel runs normally.
Build RAMDISK without SEV-* support, all other kernel keep SEV-*
support.
While there, cleanup and unify some definitions of the MSR protocol.
ok kettenis@
