Files
freebsd/sys/dev/vmm
Kevin Bowling 42d54a8fd4 vmm: Tear down the IOMMU before AMD-Vi detach
Register the vmm module handler after both the bundled device drivers
and SMP. On platforms without EARLY_AP_STARTUP, SI_SUB_SMP follows
SI_SUB_DRIVERS; using the later subsystem preserves the
smp_rendezvous() requirement.

The resulting reverse unload order performs IOMMU cleanup while every
IVHD softc remains valid. Refuse an independent IVHD detach while
translation state remains initialized.

MFC after:	2 weeks
2026-08-08 00:22:48 -07:00
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