[Bug 229852] [PATCH] bhyve: IOMMU (Intel VTd) PCI passthrough attempt locks up some systems

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229852

--- Comment #24 from Ed Maste <emaste at freebsd.org> ---
Author: gordon
Date: Wed Jul  8 19:56:34 2020
New Revision: 363022
URL: https://svnweb.freebsd.org/changeset/base/363022

Log:
  Fix host crash in bhyve with PCI device passthrough.

  Approved by:  so
  Security:     FreeBSD-EN-20:13.bhyve

Modified:
  releng/12.1/sys/amd64/vmm/intel/vtd.c
  releng/12.1/usr.sbin/bhyve/pci_emul.c
  releng/12.1/usr.sbin/bhyve/pci_emul.h
  releng/12.1/usr.sbin/bhyve/pci_passthru.c

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