https://bugzilla.kernel.org/show_bug.cgi?id=201753 Bug ID: 201753 Summary: AMD-Vi: Unable to write to IOMMU perf counter Product: Virtualization Version: unspecified Kernel Version: 4.18.0-10-generic Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: chenalias@xxxxxxx Regression: No Created attachment 279589 --> https://bugzilla.kernel.org/attachment.cgi?id=279589&action=edit dmesg AMD-Vi write error. [ 0.777408] AMD-Vi: Unable to write to IOMMU perf counter. [ 0.777529] pci 0000:00:00.2: can't derive routing for PCI INT A [ 0.777530] pci 0000:00:00.2: PCI INT A: not connected [ 0.778000] iommu: Adding device 0000:00:01.0 to group 0 [ 0.778231] iommu: Adding device 0000:00:01.2 to group 1 [ 0.778463] iommu: Adding device 0000:00:01.6 to group 2 [ 0.778690] iommu: Adding device 0000:00:08.0 to group 3 [ 0.778914] iommu: Adding device 0000:00:08.1 to group 4 [ 0.778940] iommu: Adding device 0000:00:08.2 to group 3 [ 0.779154] iommu: Adding device 0000:00:14.0 to group 5 [ 0.779176] iommu: Adding device 0000:00:14.3 to group 5 [ 0.779444] iommu: Adding device 0000:00:18.0 to group 6 [ 0.779474] iommu: Adding device 0000:00:18.1 to group 6 [ 0.779495] iommu: Adding device 0000:00:18.2 to group 6 [ 0.779516] iommu: Adding device 0000:00:18.3 to group 6 [ 0.779544] iommu: Adding device 0000:00:18.4 to group 6 [ 0.779566] iommu: Adding device 0000:00:18.5 to group 6 [ 0.779586] iommu: Adding device 0000:00:18.6 to group 6 [ 0.779606] iommu: Adding device 0000:00:18.7 to group 6 [ 0.779835] iommu: Adding device 0000:15:00.0 to group 7 [ 0.779869] iommu: Adding device 0000:15:00.1 to group 7 [ 0.779903] iommu: Adding device 0000:15:00.2 to group 7 [ 0.779933] iommu: Adding device 0000:16:04.0 to group 7 [ 0.779956] iommu: Adding device 0000:16:05.0 to group 7 [ 0.779977] iommu: Adding device 0000:16:06.0 to group 7 [ 0.779999] iommu: Adding device 0000:16:07.0 to group 7 [ 0.780031] iommu: Adding device 0000:1b:00.0 to group 7 [ 0.780058] iommu: Adding device 0000:1c:00.0 to group 7 [ 0.780296] iommu: Adding device 0000:2e:00.0 to group 8 [ 0.780592] iommu: Adding device 0000:38:00.0 to group 9 [ 0.780672] iommu: Using direct mapping for device 0000:38:00.0 [ 0.780767] iommu: Adding device 0000:38:00.1 to group 10 [ 0.780807] iommu: Adding device 0000:38:00.2 to group 10 [ 0.780847] iommu: Adding device 0000:38:00.3 to group 10 [ 0.780887] iommu: Adding device 0000:38:00.4 to group 10 [ 0.780934] iommu: Adding device 0000:38:00.6 to group 10 [ 0.780965] iommu: Adding device 0000:39:00.0 to group 3 [ 0.781307] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40 [ 0.781308] AMD-Vi: Extended features (0x4f77ef22294ada): [ 0.781308] PPR NX GT IA GA PC GA_vAPIC [ 0.781311] AMD-Vi: Interrupt remapping enabled [ 0.781311] AMD-Vi: virtual APIC enabled [ 0.781534] AMD-Vi: Lazy IO/TLB flushing enabled -- You are receiving this mail because: You are watching the assignee of the bug.
