[Xen-devel] [questions] Dom0/DomU on ARM under Xen

[Alexey Klimov <trashsee@xxxxxxxxx>]

Hello Stefano and Ian,

I'm trying to run DomU and Dom0 on ARM under Xen and have some
problems (may be question of configuration).

I'm using:
- unstable Xen mercurial repository with your "grant table" patches
and few patches from Ian Campbell (xcbuild,
xen_remap_domain_mfn_range, XENMAPSPACE_gmfn_foreign,  ARM support to
xc_dom).
- your (Stefano's) linux kernel git repository
git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git with head
3.5-rc7-arm-1. I hope all patches to Linux kernel from Stefano letters
are there.
- Fast Models with few models created as described in wiki page
http://wiki.xen.org/wiki/Xen_ARMv7_with_Virtualization_Extensions/FastModels
- device trees dts files (vexpress-v2p-ca15-tc1.dts and
vexpress-virt.dts) from Stefano letter on 26 July. v2p-ca15-tc1 is
attached to Xen using CONFIG_DTB_FILE and vexpress-virt.dtb is
attached to DomU zImage.

Well, kernel hangs after message (Calibrating delay loop...) when
running on models RTSM_VE/Build_Cortex-A15x4 and
RTSM_VE/Build_Cortex-A15x2. I attached logs (Dom0-A15x2 and A15x4).
Logs also shows problems with device trees (HBI and arch timer).

I can boot Dom0 on Cortex-A15x1 model (log file Dom0-A15x1 with
warning/problems about DT and HBI) and when i'm tryng to boot zImage
using xcbuild utility then it also hangs with message from Xen "Guest
data abort: Translation fault at level 3". Log file is also attached.

Could you please take a look and help?

May be i miss important config option in Linux kernel or in Xen.

Is it okay that vexpress-virt descibes V2P-AEMv7A platform and not
V2P-CA15? It looks that vexpress-v2p-ca15-tc1.dts includes
vexpress-v2m-rs1-rtsm.dtsi. Could you please also share this file if
it has specific options? And what can be reason of errors about
HBI/arch_timers when running Xen+Linux
kernel+vexpress-v2p-ca15-tc1.dts on Cortex-A15x2 model?

I can provide/send other info if you want. Thanks in advance.
Best regards,
Alexey Klimov.

Attachment: Dom0-A15x2.log
Description: Binary data

Attachment: Dom0-A15x4.log
Description: Binary data

Attachment: Dom0-A15x1.log
Description: Binary data

Attachment: DomU-A15x1-vexpress-virt-dtb.log
Description: Binary data

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