Device 03:00.0 is the SAS smart array controller in the server (grabbed
from a machine deployed without iommu enable):
03:00.0 Serial Attached SCSI controller: Hewlett-Packard Company Smart Array
Gen9 Controllers (rev 01)
DeviceName: Embedded RAID 1
Subsystem: Hewlett-Packard Company P440ar
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at 93300000 (64-bit, non-prefetchable) [size=1M]
Region 2: Memory at 93400000 (64-bit, non-prefetchable) [size=1K]
Region 4: I/O ports at 4000 [size=256]
[virtual] Expansion ROM at 93480000 [disabled] [size=512K]
Capabilities: <access denied>
Kernel driver in use: hpsa
Kernel modules: hpsa
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1641593
Title:
unable to enable iommu on HPE Proliant Gen9 server
Status in linux package in Ubuntu:
Incomplete
Bug description:
I'm using MAAS to enable the following kernel flags on install/boot:
iommu=pt intel_iommu=on
in order to be able to passthrough SR-IOV VF functions to KVM guess;
however when these options are enabled, the servers fail to install
(see attached screenshot).
The install eventually fails - it looks like the writes back to one of
the disks starts to fail for some reason.
Servers are targeted with Xenial and the release 4.4 kernel (no HWE).
To manage notifications about this bug go to:
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