CVS commit: src/sys/dev/nvmm

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Thu Jan 24 13:05:59 UTC 2019

Modified Files:
        src/sys/dev/nvmm: nvmm.h
        src/sys/dev/nvmm/x86: nvmm_x86_svm.c

Log Message:
Optimize: change the behavior of the HLT vmexit, make it a "change in vcpu
state" which occurs after the instruction executed, rather than an
instruction intercept which occurs before. Disable the shadow and the intr
window in kernel mode, and advance the RIP, so that the virtualizer doesn't
have to do it itself. This saves two syscalls and one VMCB cache flush.

Provide npc for other instruction intercepts, in case someone is
interested.


To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/dev/nvmm/nvmm.h
cvs rdiff -u -r1.16 -r1.17 src/sys/dev/nvmm/x86/nvmm_x86_svm.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.