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bhyve: add GVT-d support for graphics gen 11 and newer
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Authored by corvink on May 24 2024, 11:34 AM.
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Reviewers
jhb
markj
Group Reviewers
bhyve
Summary

The BDSM (Base Data Stolen Memory) register changed. Older generations are
using a 32 bit register. On newer generations a different register address is
used and the size was changed to 64 bit to permit allocating graphics stolen
memory above 4 GB. Bhyve has to detect that and properly emulate the correct
register.

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rG FreeBSD src repository
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Build Status
Buildable 57894
Build 54782: arc lint + arc unit