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From: Jerry Snitselaar <jsnitsel@redhat.com>
To: iommu@lists.linux-foundation.org, Lu Baolu <baolu.lu@linux.intel.com>
Subject: Seeing some another issue with mixed domains in the same iommu_group
Date: Thu, 6 Feb 2020 10:54:32 -0700	[thread overview]
Message-ID: <20200206175432.4r5vaurm6codfa4a@cantor> (raw)

Hi Baolu,

I'm seeing another issue with the devices in the HP ilo when the
system is booted with intel_iommu=on and iommu=pt (iommu=nopt does not
run into problems).

first system:

01:00.0 System peripheral: Hewlett-Packard Company Integrated Lights-Out Standard Slave Instrumentation & System Support (rev 05)
01:00.1 VGA compatible controller: Matrox Electronics Systems Ltd. MGA G200EH
01:00.2 System peripheral: Hewlett-Packard Company Integrated Lights-Out Standard Management Processor Support and Messaging (rev 05)
01:00.4 USB controller: Hewlett-Packard Company Integrated Lights-Out Standard Virtual USB Controller (rev 02)

[   21.208103] pci 0000:01:00.0: Adding to iommu group 24
[   21.210911] pci 0000:01:00.0: Using iommu dma mapping
[   21.212635] pci 0000:01:00.1: Adding to iommu group 24
[   21.214326] pci 0000:01:00.1: Device uses a private identity domain.
[   21.216507] pci 0000:01:00.2: Adding to iommu group 24
[   21.618173] pci 0000:01:00.4: Adding to iommu group 24
[   21.619839] pci 0000:01:00.4: Device uses a private identity domain.

[   26.206832] uhci_hcd: USB Universal Host Controller Interface driver
[   26.209044] uhci_hcd 0000:01:00.4: UHCI Host Controller
[   26.210897] uhci_hcd 0000:01:00.4: new USB bus registered, assigned bus number 3
[   26.213247] uhci_hcd 0000:01:00.4: detected 8 ports
[   26.214810] uhci_hcd 0000:01:00.4: port count misdetected? forcing to 2 ports
[   26.217153] uhci_hcd 0000:01:00.4: irq 16, io base 0x00003c00
[   26.219171] uhci_hcd 0000:01:00.4: 32bit DMA uses non-identity mapping
[   26.221261] uhci_hcd 0000:01:00.4: unable to allocate consistent memory for frame list
[   26.223787] uhci_hcd 0000:01:00.4: startup error -16
[   26.225381] uhci_hcd 0000:01:00.4: USB bus 3 deregistered
[   26.227378] uhci_hcd 0000:01:00.4: init 0000:01:00.4 fail, -16
[   26.229296] uhci_hcd: probe of 0000:01:00.4 failed with error -16


different system with similar issue:

01:00.0 System peripheral [0880]: Hewlett-Packard Company Integrated Lights-Out Standard Slave Instrumentation & System Support [103c:3306] (rev 07)
01:00.1 VGA compatible controller [0300]: Matrox Electronics Systems Ltd. MGA G200eH3 [102b:0538] (rev 02) (prog-if 00 [VGA controller])
01:00.2 System peripheral [0880]: Hewlett-Packard Company Integrated Lights-Out Standard Management Processor Support and Messaging [103c:3307] (rev 07)
01:00.4 USB controller [0c03]: Hewlett-Packard Company iLO5 Virtual USB Controller [103c:22f6] (prog-if 20 [EHCI])

[   13.695663] pci 0000:01:00.0: Adding to iommu group 10
[   13.703667] pci 0000:01:00.0: Using iommu dma mapping
[   13.708871] pci 0000:01:00.1: Adding to iommu group 10
[   13.714033] pci 0000:01:00.1: DMAR: Device uses a private identity domain.
[   13.721033] pci 0000:01:00.2: Adding to iommu group 10
[   13.726290] pci 0000:01:00.4: Adding to iommu group 10
[   13.731453] pci 0000:01:00.4: DMAR: Device uses a private identity domain.

[   17.157796] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   17.164348] ehci-pci: EHCI PCI platform driver
[   17.170061] ehci-pci 0000:01:00.4: EHCI Host Controller
[   17.175457] ehci-pci 0000:01:00.4: new USB bus registered, assigned bus number 1
[   17.182912] ehci-pci 0000:01:00.4: DMAR: 32bit DMA uses non-identity mapping
[   17.189988] ehci-pci 0000:01:00.4: can't setup: -12
[   17.194884] ehci-pci 0000:01:00.4: USB bus 1 deregistered
[   17.200567] ehci-pci 0000:01:00.4: init 0000:01:00.4 fail, -12
[   17.206508] ehci-pci: probe of 0000:01:00.4 failed with error -12


I'm looking through the code and trying to debug it, but any thoughts on this?

Regards,
Jerry

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             reply	other threads:[~2020-02-06 17:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-06 17:54 Jerry Snitselaar [this message]
2020-02-06 18:47 ` Seeing some another issue with mixed domains in the same iommu_group Jerry Snitselaar
2020-02-06 21:36   ` Jerry Snitselaar
2020-02-06 23:16     ` Jerry Snitselaar
2020-02-07  7:19       ` Lu Baolu

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