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vmm: Expose some more AVX512 CPUID bits to guests
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Authored by markj on Apr 24 2023, 9:53 PM.
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Details

Summary

This is required to announce support for some accelerated AES
operations. AVX512BW indicates support for the AVX512-FP16 extension
and AVX512VL indicates support for the use of AVX512 instructions with
vector lengths smaller than 512 bits.

VAES and VPCLMULQDQ extensions indicate that VEX-prefixed AES-NI and
pclmulqdq instructions are supported.

All of these bits are needed for OpenSSL to use VAES to accelerate
AES-GCM operations.

Sponsored by: Stormshield
Sponsored by: Klara, Inc.

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rG FreeBSD src repository
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