[Bug 201753] AMD-Vi: Unable to write to IOMMU perf counter

bugzilla-daemon
2020-03-27T20:58:41Z

Neil (ledufff@hotmail.com) changed:

What |Removed |Added
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CC| |ledufff@hotmail.com

--- Comment #1 from Neil (ledufff@hotmail.com) ---
Similar finding:
[ 1.144340] pci 0000:00:00.2: AMD-Vi: Unable to read/write to IOMMU perf
counter.
[ 1.144456] pci 0000:00:00.2: can't derive routing for PCI INT A
[ 1.144457] pci 0000:00:00.2: PCI INT A: not connected
[ 1.144521] pci 0000:00:01.0: Adding to iommu group 0
[ 1.144774] pci 0000:00:01.2: Adding to iommu group 1
[ 1.145009] pci 0000:00:01.3: Adding to iommu group 2
[ 1.145245] pci 0000:00:01.6: Adding to iommu group 3
[ 1.145468] pci 0000:00:08.0: Adding to iommu group 4
[ 1.145677] pci 0000:00:08.1: Adding to iommu group 5
[ 1.145899] pci 0000:00:08.2: Adding to iommu group 4
[ 1.145924] pci 0000:00:14.0: Adding to iommu group 6
[ 1.146173] pci 0000:00:14.3: Adding to iommu group 6
[ 1.146224] pci 0000:00:18.0: Adding to iommu group 7
[ 1.146438] pci 0000:00:18.1: Adding to iommu group 7
[ 1.146464] pci 0000:00:18.2: Adding to iommu group 7
[ 1.146481] pci 0000:00:18.3: Adding to iommu group 7
[ 1.146498] pci 0000:00:18.4: Adding to iommu group 7
[ 1.146515] pci 0000:00:18.5: Adding to iommu group 7
[ 1.146542] pci 0000:00:18.6: Adding to iommu group 7
[ 1.146560] pci 0000:00:18.7: Adding to iommu group 7
[ 1.146598] pci 0000:01:00.0: Adding to iommu group 8
[ 1.146851] pci 0000:02:00.0: Adding to iommu group 9
[ 1.147143] pci 0000:03:00.0: Adding to iommu group 10
[ 1.147467] pci 0000:04:00.0: Adding to iommu group 11
[ 1.147606] pci 0000:04:00.0: Using iommu direct mapping
[ 1.147648] pci 0000:04:00.1: Adding to iommu group 12
[ 1.147875] pci 0000:04:00.2: Adding to iommu group 12
[ 1.147912] pci 0000:04:00.3: Adding to iommu group 12
[ 1.147941] pci 0000:04:00.4: Adding to iommu group 12
[ 1.147979] pci 0000:04:00.5: Adding to iommu group 12
[ 1.148015] pci 0000:04:00.6: Adding to iommu group 12
[ 1.148032] pci 0000:05:00.0: Adding to iommu group 4
[ 1.148310] pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40
[ 1.148311] pci 0000:00:00.2: AMD-Vi: Extended features (0x4f77ef22294ada):
[ 1.148312] PPR NX GT IA GA PC GA_vAPIC