CVSROOT: /cvs Module name: src Changes by: mlar...@cvs.openbsd.org 2017/03/20 20:57:38
Modified files:
sys/arch/amd64/amd64: vmm.c
Log message:
Don't allow the guest to clear CR0_NE or CR4_VMXE. While we should be
using the "must be clear / must be set" masks for these registers, I'd
like to know (for now) when guest VMs manipulate bits in these registers
in an unexpected way. This is needed for Linux guests, as they
unconditionally set CR0 without NE, and CR4 without VMXE.
