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[Qemu-devel] [XenGT][IGVT-g] Device model creation failed


From: Oleksii Kurochko
Subject: [Qemu-devel] [XenGT][IGVT-g] Device model creation failed
Date: Wed, 30 Dec 2015 14:55:44 +0200

Hello!

We are going to use XenGT on Intel Atom based board(VTC-1010, with 4GB RAM).
For this purpose we use next repos:
xen - https://github.com/01org/Igvtg-xen
dom0 (ubuntu linux, 1024MB or 2048MB ) - https://github.com/01org/Igvtg-kernel
domU (android-x86, rest memory excluding xen heap, xen, about 1.7GB RAM ) - same kernel, with some config changes

Guest domain are going to be started in HVM mode.
We follow iGVT-g setup guide (https://github.com/01org/Igvtg-kernel/blob/2015q3-3.18.0/iGVT-g_Setup_Guide.txt) and successfully setup dom0 with iGVT.

But, when we are going to start domU (with enabled vgt=1 switch) domain creation failed with follow log:
address@hidden:~$ sudo xl -vvv create -c ./a.cfg
Parsing config from ./a.cfg
WARNING: specifying "tsc_mode" as an integer is deprecated. Please use the named parameter variant. e.g. tsc_mode="default"
WARNING: you seem to be using "kernel" directive to override HVM guest firmware. Ignore that. Use "firmware_override" instead if you really want a non-default firmware
libxl: debug: libxl_create.c:1501:do_domain_create: ao 0x14c3190: create: how=(nil) callback=(nil) poller=0x14c31f0
libxl: debug: libxl_create.c:907:initiate_domain_create: running bootloader
libxl: debug: libxl_bootloader.c:323:libxl__bootloader_run: not a PV domain, skipping bootloader
libxl: debug: libxl_event.c:629:libxl__ev_xswatch_deregister: watch w=0x14b97c0: deregister unregistered
xc: detail: elf_parse_binary: phdr: paddr=0x100000 memsz=0xc9524
xc: detail: elf_parse_binary: memory: 0x100000 -> 0x1c9524
xc: detail: VIRTUAL MEMORY ARRANGEMENT:
xc: detail:   Loader:   0000000000100000->00000000001c9524
xc: detail:   Modules:  0000000000000000->0000000000000000
xc: detail:   TOTAL:    0000000000000000->000000003f800000
xc: detail:   ENTRY:    0000000000100000
xc: detail: PHYSICAL MEMORY ALLOCATION:
xc: detail:   4KB PAGES: 0x0000000000000200
xc: detail:   2MB PAGES: 0x00000000000001fb
xc: detail:   1GB PAGES: 0x0000000000000000
xc: detail: elf_load_binary: phdr 0 at 0x7f1c9464c000 -> 0x7f1c9470c391
libxl: debug: libxl_dm.c:1462:libxl__spawn_local_dm: Spawning device-model /usr/lib/xen/bin/qemu-system-i386 with arguments:
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   /usr/lib/xen/bin/qemu-system-i386
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -xen-domid
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   1
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -chardev
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-1,server,nowait
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -mon
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   chardev=libxl-cmd,mode=control
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -nodefaults
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -name
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   vgtHVMDomain
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -sdl
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -k
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   en-us
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -serial
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   pty
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -vga
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   xengt
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -vgt_low_gm_sz
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   128
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -vgt_high_gm_sz
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   384
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -vgt_fence_sz
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   4
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -boot
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   order=cda
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -usb
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -usbdevice
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   tablet
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -net
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   none
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -machine
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   xenfv
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   -m
libxl: debug: libxl_dm.c:1464:libxl__spawn_local_dm:   1016
libxl: debug: libxl_event.c:577:libxl__ev_xswatch_register: watch w=0x14b9a20 wpath=/local/domain/0/device-model/1/state token=3/0: register slotnum=3
libxl: debug: libxl_create.c:1517:do_domain_create: ao 0x14c3190: inprogress: poller=0x14c31f0, flags=i
libxl: debug: libxl_event.c:514:watchfd_callback: watch w=0x14b9a20 wpath=/local/domain/0/device-model/1/state token=3/0: event epath=/local/domain/0/device-model/1/state
libxl: debug: libxl_event.c:615:libxl__ev_xswatch_deregister: watch w=0x14b9a20 wpath=/local/domain/0/device-model/1/state token=3/0: deregister slotnum=3
libxl: error: libxl_dm.c:1531:device_model_spawn_outcome: domain 1 device model: spawn failed (rc=-3)
libxl: error: libxl_create.c:1319:domcreate_devmodel_started: device model did not start: -3
libxl: error: libxl_dm.c:1635:kill_device_model: Device Model already exited
libxl: debug: libxl_event.c:629:libxl__ev_xswatch_deregister: watch w=0x14bd010: deregister unregistered
libxl: debug: libxl_event.c:1765:libxl__ao_complete: ao 0x14c3190: complete, rc=-3
libxl: debug: libxl_event.c:1737:libxl__ao__destroy: ao 0x14c3190: destroy
xc: debug: hypercall buffer: total allocations:949 total releases:949
xc: debug: hypercall buffer: current allocations:0 maximum allocations:4
xc: debug: hypercall buffer: cache current size:4
xc: debug: hypercall buffer: cache hits:936 misses:4 toobig:9

Without this flag - are all ok, domain created and running normally.

Do you have any ideas about this issue?

Thank you.

--
Oleksii Kurochko | Embedded Dev
GlobalLogic
www.globallogic.com

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