bhyve: protect MMIO mapped BDSM register
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Authored by corvink on May 24 2024, 11:35 AM.

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Details

Reviewers

jhb
markj

Group Reviewers

bhyve

Summary

The Windows graphics driver reads the value of the BDSM register from MMIO
space. This value makes no sense in our virtual environment because it's a host
address. Therefore, we have to trap and emulate it.

Diff Detail

Repository

rG FreeBSD src repository

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Lint Skipped

Unit

Tests Skipped

Build Status

Buildable 57898
Build 54786: arc lint + arc unit

Event Timeline

corvink created this revision.May 24 2024, 11:35 AM

Herald added subscribers: bcran, rgrimes, imp. · View Herald TranscriptMay 24 2024, 11:35 AM

corvink requested review of this revision.May 24 2024, 11:35 AM

Harbormaster completed remote builds in B57898: Diff 139039.May 24 2024, 11:35 AM

corvink added a parent revision: D45341: bhyve: add interface to protect BAR regions of passthru devices.May 24 2024, 11:35 AM

Revision Contents
Changeset List

Path

Size

usr.sbin/

bhyve/

amd64/

pci_gvt-d.c

57 lines

Diff 139039

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

bhyve: protect MMIO mapped BDSM registerNeeds ReviewPublicActions