On Tue Dec 10 19, Lu Baolu wrote:
Hi,
On 12/10/19 1:18 PM, Jerry Snitselaar wrote:
On Mon Dec 09 19, Jerry Snitselaar wrote:
[snip]
A call to iommu_map is failing.
[ 36.686881] pci 0000:01:00.2: iommu_group_add_device: calling
iommu_group_create_direct_mappings
[ 36.689843] pci 0000:01:00.2:
iommu_group_create_direct_mappings: iterating through mappings
[ 36.692757] pci 0000:01:00.2:
iommu_group_create_direct_mappings: calling apply_resv_region
[ 36.695526] pci 0000:01:00.2: e_direct_mappings: entry type is direct
[ 37.198053] iommu: iommu_map: ops->map failed iova 0xbddde000
pa 0x00000000bddde000 pgsize 0x1000
[ 37.201357] pci 0000:01:00.2:
iommu_group_create_direct_mappings: iommu_map failed
[ 37.203973] pci 0000:01:00.2:
iommu_group_create_direct_mappings: leaving func
[ 37.206385] pci 0000:01:00.2: iommu_group_add_device: calling
__iommu_attach_device
[ 37.208950] pci 0000:01:00.2: Adding to iommu group 25
[ 37.210660] pci 0000:01:00.2: DMAR: domain->type is dma
It bails at the dmar_domain->flags & DOMAIN_FLAG_LOSE_CHILDREN check
at the beginning of intel_iommu_map. I will verify, but it looks like
that is getting set when intel_iommu_add_device is called for 01:00.1.
request_default_domain_for_dev for 01:00.1 will return -EBUSY because
iommu_group_device_count(group) != 1.
Okay, I will send you a fix patch later. Thanks!
Best regards,
baolu
One issue I see is:
[ 38.869182] uhci_hcd 0000:01:00.4: UHCI Host Controller
[ 39.371173] uhci_hcd 0000:01:00.4: new USB bus registered, assigned bus
number 3
[ 39.373708] uhci_hcd 0000:01:00.4: detected 8 ports
[ 39.375333] uhci_hcd 0000:01:00.4: port count misdetected? forcing to 2 ports
[ 39.377820] uhci_hcd 0000:01:00.4: irq 16, io base 0x00003c00
[ 39.379921] uhci_hcd 0000:01:00.4: DMAR: 32bit DMA uses non-identity mapping
[ 39.382269] uhci_hcd 0000:01:00.4: unable to allocate consistent memory for
frame list
[ 39.384920] uhci_hcd 0000:01:00.4: startup error -16
[ 39.386619] uhci_hcd 0000:01:00.4: USB bus 3 deregistered
[ 39.388640] uhci_hcd 0000:01:00.4: init 0000:01:00.4 fail, -16
[ 39.390616] uhci_hcd: probe of 0000:01:00.4 failed with error -16
I'm not sure if this is related to the flag and what is allowed now
by the api. I need to go look at the code to see what it is
doing. I'll try debugging it tonight.
Regards,
Jerry
Also fails for 01:00.4:
[ 37.212448] pci 0000:01:00.4: iommu_group_add_device: calling
iommu_group_create_direct_mappings
[ 37.215382] pci 0000:01:00.4:
iommu_group_create_direct_mappings: iterating through mappings
[ 37.218170] pci 0000:01:00.4:
iommu_group_create_direct_mappings: calling apply_resv_region
[ 37.220933] pci 0000:01:00.4:
iommu_group_create_direct_mappings: entry type is direct-relaxable
[ 37.223932] iommu: iommu_map: ops->map failed iova 0xbddde000
pa 0x00000000bddde000 pgsize 0x1000
[ 37.226857] pci 0000:01:00.4:
iommu_group_create_direct_mappings: iommu_map failed
[ 37.229300] pci 0000:01:00.4:
iommu_group_create_direct_mappings: leaving func
[ 37.231648] pci 0000:01:00.4: iommu_group_add_device: calling
__iommu_attach_device
[ 37.234194] pci 0000:01:00.4: Adding to iommu group 25
[ 37.236192] pci 0000:01:00.4: DMAR: domain->type is dma
[ 37.237958] pci 0000:01:00.4: DMAR: device default domain type
is identity. requesting identity domain
[ 37.241061] pci 0000:01:00.4: don't change mappings of existing
d37.489870] pci 0000:01:00.4: DMAR: Device uses a private identity
domain.
There is an RMRR for 0xbddde000-0xddddefff:
[63Ah 1594 2] Subtable Type : 0001 [Reserved
Memory Region]
[63Ch 1596 2] Length : 0036
[63Eh 1598 2] Reserved : 0000
[640h 1600 2] PCI Segment Number : 0000
[642h 1602 8] Base Address : 00000000BDDDE000
[64Ah 1610 8] End Address (limit) : 00000000BDDDEFFF
[652h 1618 1] Device Scope Type : 01 [PCI Endpoint Device]
[653h 1619 1] Entry Length : 0A
[654h 1620 2] Reserved : 0000
[656h 1622 1] Enumeration ID : 00
[657h 1623 1] PCI Bus Number : 00
[658h 1624 2] PCI Path : 1C,07
[65Ah 1626 2] PCI Path : 00,00
[65Ch 1628 1] Device Scope Type : 01 [PCI Endpoint Device]
[65Dh 1629 1] Entry Length : 0A
[65Eh 1630 2] Reserved : 0000
[660h 1632 1] Enumeration ID : 00
[661h 1633 1] PCI Bus Number : 00
[662h 1634 2] PCI Path : 1C,07
[664h 1636 2] PCI Path : 00,02
[666h 1638 1] Device Scope Type : 01 [PCI Endpoint Device]
[667h 1639 1] Entry Length : 0A
[668h 1640 2] Reserved : 0000
[66Ah 1642 1] Enumeration ID : 00
[66Bh 1643 1] PCI Bus Number : 00
[66Ch 1644 2] PCI Path : 1C,07
[66Eh 1646 2] PCI Path : 00,04
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