Differential D45338

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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jhb
markj

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rG9eddbaa5bba2: bhyve: add GVT-d support for graphics gen 11 and newer

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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Tests Not Applicable

Event Timeline

corvink created this revision.May 24 2024, 11:34 AM

Herald added subscribers: bcran, rgrimes, imp. · View Herald TranscriptMay 24 2024, 11:34 AM

corvink requested review of this revision.May 24 2024, 11:34 AM

Harbormaster completed remote builds in B57894: Diff 139035.May 24 2024, 11:34 AM

corvink added a child revision: D45339: bhyve: add BAR handler list for passthru devices.May 24 2024, 11:35 AM

corvink added a parent revision: D45337: bhyve: support VBTs which lay outside of the OpRegion.

markj accepted this revision as: markj.May 27 2024, 3:51 PM

This revision is now accepted and ready to land.May 27 2024, 3:51 PM

make use of igd_ops

This revision now requires review to proceed.Jun 12 2025, 1:46 PM

Harbormaster completed remote builds in B64799: Diff 156882.Jun 12 2025, 1:46 PM

corvink added a parent revision: D50807: bhyve: scan PCI device ID to properly set BDSM address.Jun 12 2025, 1:47 PM

markj accepted this revision as: markj.Jun 17 2025, 12:09 PM

markj added inline comments.

usr.sbin/bhyve/amd64/pci_gvt-d.c
81
97

This revision is now accepted and ready to land.Jun 17 2025, 12:09 PM

Fine with me once @markj's style nit is fixed.

Closed by commit rG9eddbaa5bba2: bhyve: add GVT-d support for graphics gen 11 and newer (authored by corvink). · Explain WhyAug 5 2025, 2:04 PM

This revision was automatically updated to reflect the committed changes.

corvink added a commit: rG9eddbaa5bba2: bhyve: add GVT-d support for graphics gen 11 and newer.

Revision Contents
Changeset List

Path

Size

usr.sbin/

bhyve/

amd64/

37 lines

Diff 159775

usr.sbin/bhyve/amd64/pci_gvt-d.c

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