K 10
svn:author
V 4
khng
K 8
svn:date
V 27
2021-09-03T19:07:55.431227Z
K 7
svn:log
V 849
vmm: Fix AMD-vi using wrong rid range

The ACPI parsing code around rid range was wrong on assuming there is
only one pair of start/end device id range. Besides, ivhd_dev_parse()
never work as supposed. The start/end rid info was always zero.

Restructure the code to build dynamic-sized tables for each IOMMU softc
holding device entries. The device entries are enumerated to find a
suitable IOMMU unit. Operations on devices not governed (e.g. the IOMMU
unit itself) are no-op from now on. There are also a minor fix on wrong
%b formatting string usage.

Tested on my EPYC 7282.

Sponsored by:	The FreeBSD Foundation
Reviewed by:	grehan
Differential Revision:	https://reviews.freebsd.org/D30827

(cherry picked from commit b5c74dfd6434b7f4dcc59dbd61b508acc5ec3ecf)

Git Hash:   db877a06ec414ce40ce5113c1913110e5e604e34
Git Author: khng@FreeBSD.org
END