git: nvmm: Improve FPU support and reduce diff against NetBSD
aly at crater.dragonflybsd.org
Tue Jul 20 16:30:28 PDT 2021
Author: Aaron LI <aly at aaronly.me>
Date: Wed Jun 30 07:29:27 2021 +0800
nvmm: Improve FPU support and reduce diff against NetBSD
I was using 'struct savexmm64' to translate NetBSD's 'struct xsave_header'.
This works but isn't good enough, because 'savexmm64' can't deal with
xstate, so I disabled the xstate header related code in the old code.
This commit changes to use 'struct saveymm64' instead. It contains the
XSAVE header and YMM xstate component, allowing us to enable the
originally disabled xstate header code in NVMM.
In addition, define some compat macros to adapt NetBSD's FPU structures
to ours, reducing the NVMM code difference against NetBSD.
Will later work on AVX support in guest VM.
Summary of changes:
sys/dev/virtual/nvmm/nvmm_compat.h | 11 +++++++++++
sys/dev/virtual/nvmm/x86/nvmm_x86.c | 12 ++++++------
sys/dev/virtual/nvmm/x86/nvmm_x86_svm.c | 21 +++++++++------------
sys/dev/virtual/nvmm/x86/nvmm_x86_vmx.c | 20 +++++++++-----------
4 files changed, 35 insertions(+), 29 deletions(-)
DragonFly BSD source repository
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