CVS commit: src

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

Module Name:    src
Committed By:   maxv
Date:           Sun Oct 27 10:28:55 UTC 2019

Modified Files:
        src/lib/libnvmm: libnvmm.3
        src/sys/dev/nvmm/x86: nvmm_x86.h nvmm_x86_svm.c nvmm_x86_vmx.c

Log Message:
Add a new VCPU conf option, that allows userland to request VMEXITs after a
TPR change. This is supported on all Intel CPUs, and not-too-old AMD CPUs.

The reason for wanting this option is that certain OSes (like Win10 64bit)
manage interrupt priority in hardware via CR8 directly, and for these OSes,
the emulator may want to sync its internal TPR state on each change.

Add two new fields in cap.arch, to report the conf capabilities. Report TPR
only on Intel for now, not AMD, because I don't have a recent AMD CPU on
which to test.


To generate a diff of this commit:
cvs rdiff -u -r1.21 -r1.22 src/lib/libnvmm/libnvmm.3
cvs rdiff -u -r1.16 -r1.17 src/sys/dev/nvmm/x86/nvmm_x86.h
cvs rdiff -u -r1.51 -r1.52 src/sys/dev/nvmm/x86/nvmm_x86_svm.c
cvs rdiff -u -r1.40 -r1.41 src/sys/dev/nvmm/x86/nvmm_x86_vmx.c

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