On 01.02.19 23:58, Arvid Rosén wrote:
Hi!
I just found Jailhouse, and I think it is a very interesting project. I would
like to try it on a NXP i.MX8 EVK, namely exactly this:
https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/evaluation-kit-for-the-i.mx-8m-applications-processor:MCIMX8M-EVK
Peng can probably explain if that's the board that our in-tree config files were
designed for, but it looks to me like it is.
This is new stuff to me, but I managed to use Yocto to create an image that runs
a Linux Kernel v4.14.78. I also manage to build jailhouse from git on the board.
Then, it start to get tricky.
I start by issuing the following command, which works
/usr/local/sbin/jailhouse enable ~/jailhouse/configs/arm64/imx8mq.cell
I can also run:
/usr/local/sbin/jailhouse cell create jailhouse/configs/imx8mq-gic-demo.cell
This gives me an, in dmesg:
[46672.927620] Created Jailhouse cell "gic-demo"
What then?
I have tried this:
/usr/local/sbin/jailhouse cell load gic-demo
jailhouse/inmates/demos/arm64/gic-demo.bin
This gives me an instant crash, with the folloing output:
Did you reserve memory for hypervisor and inmates as described in
configs/arm64/imx8mq.c ("Reservation via device tree: reg = <0x0 0xffaf0000 0x0
0x510000>")?
Jan
[44859.014164] The Jailhouse was closed.
[44936.688241] The Jailhouse is opening.
[44943.531522] CPU3: shutdown
[44943.534236] psci: CPU3 killed.
[44943.546785] Created Jailhouse cell "gic-demo"
[44951.801985] Bad mode in Error handler detected on CPU0, code 0xbf000002 --
SError
[44951.809476] Internal error: Oops - bad mode: 0 [#6] PREEMPT SMP
[44951.815395] Modules linked in: jailhouse(O) 8021q garp stp mrp crc32_ce
crct10dif_ce qca6174(O) galcore(O) [last unloaded: jailhouse]
[44951.827409] CPU: 0 PID: 13109 Comm: jailhouse Tainted: G D O
4.14.78-imx_4.14.78_1.0.0_ga+g66620c3d281c #1
[44951.838014] Hardware name: Freescale i.MX8MQ EVK (DT)
[44951.843063] task: ffff8000b8c65100 task.stack: ffff0000206d0000
[44951.848983] PC is at 0xffff856e491c
[44951.852469] LR is at 0x401b08
[44951.855434] pc : [<0000ffff856e491c>] lr : [<0000000000401b08>] pstate:
80000000
[44951.862826] sp : 0000fffffc21e010
[44951.866138] x29: 0000fffffc21e010 x28: 0000000000402000
[44951.871450] x27: 0000000000000005 x26: 0000000000000001
[44951.876761] x25: 000000000c24b2b0 x24: 0000fffffc21ee22
[44951.882072] x23: 0000fffffc21e318 x22: 0000000000000005
[44951.887384] x21: 0000000000000005 x20: 000000000c24b2b0
[44951.892694] x19: 0000000000000003 x18: 000000000000081c
[44951.898006] x17: 0000000000413108 x16: 0000ffff856e4910
[44951.903317] x15: 0000ffff85621de0 x14: 0000ffff8562f2c8
[44951.908629] x13: 000000000000270f x12: 0000000000000001
[44951.913940] x11: 0000000000000000 x10: 0101010101010101
[44951.919250] x9 : 0000ffff857ae270 x8 : 000000000000001d
[44951.924562] x7 : 0000000000000000 x6 : 0000000000000000
[44951.929873] x5 : 0000000000000077 x4 : 000000000c24b2c0
[44951.935184] x3 : 0000000000000000 x2 : 000000000c24b260
[44951.940495] x1 : 0000000040300003 x0 : 0000000000000000
[44951.945806] Process jailhouse (pid: 13109, stack limit = 0xffff0000206d0000)
[44951.952853] ---[ end trace 528a201c8566b124 ]---
What do I need to do to run the gic-demo on my board? Am I doing anything wrong,
and in what state is the NXP IMX support currently?
Thanks,
Arvid
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