[DragonFlyBSD - Bug #3341] (New) [NVMM] Support AVX (and AVX2) in VMs

[bugtracker-admin at leaf.dragonflybsd.org]

Issue #3341 has been reported by liweitianux.

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Bug #3341: [NVMM] Support AVX (and AVX2) in VMs
http://bugs.dragonflybsd.org/issues/3341

* Author: liweitianux
* Status: New
* Priority: Normal
* Category: nvmm
* Target version: 6.6
* Start date: 2023-02-06
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NVMM currently only exports XSAVE to VMs, but no AVX/AVX2/AVX512 yet.  However, some "modern" software require AVX to be able to run ...

To support AVX in NVMM, the FPU code must be improved/refactored first.  Check NetBSD's FPU code overhaul. (also by maxv)

<pre>
host# dmesg | grep Features2
Features2=0x77fafbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,AVX,F16C,RDRND>

vm# dmesg | grep Features2
Features2=0xe6da3203<SSE3,PCLMULQDQ,SSSE3,FMA,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,AESNI,XSAVE,F16C,RDRND,VMM>
</pre>



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