I have tried to get jailhouse running on UP xtreme board with an LTE
module attached.
However, running into some problems, and this one is one I couldn't
solve myself: The entire system hangs quite fast after getting this
message:
VT-d fault event reported by IOMMU 1:
Source Identifier (bus:dev.func): 01:00.0
Fault Reason: 0x22 Fault Info: 2d000000000 Type 0
The 01:00.0 is the PCI address for the LTE module.
Cross-referencing with Linux kernel, I figured that 0x22 is
"Present bit in context entry is clear"
Don't know how to figure out what to do with "fault info" or "type"
here either.
Root cell configuration can be found in
https://pastebin.com/armiRjH9
Setting iommu = 0 for the LTE modem prevents system from hanging
instantly, but the failure message is still there. Issuing "jailhouse
disable"
still hangs the system reliably with no extra messages.
relevant lspci:
01:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless
Network Adapter
Thanks all for the previous help, and thanks in advance for helping.
Also, I got this from jailhouse console -f, I don't get anything from the
UART, does that mean misconfiguration there in this case?
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