Hello,
>
There is some
low-hanging fruit, both in Xen and the Linux kernel,
> which
can really be worked in parallel by different parties, so let me
>
know if you have some capacity and we can speak about sharing
the
>
workload.
Could
you share more
details about the low-hanging fruit?
Following
with an
update, I managed to start a PVH Dom0 with the patches from
Roger’s
fixes branch http://xenbits.xen.org/gitweb/?p=people/royger/xen.git;a=shortlog;h=refs/heads/fixes-pvh-v2
and with the xen kernel tip
https://kernel.googlesource.com/pub/scm/linux/kernel/git/xen/tip/
(a978a5b – latest commit).
When
trying to PCI
passthrough a NIC to a HVM DomU guest from PVH Dom0, the host
completely freezes and reboots and xl returns the following
errors:
libxl:
error:libxl_qmp.c:334:qmp_handle_error_reponse: Domain
1:received an
error message from QMP server: Mapping machine irq 16 to pirq -1
failed: Function not implemented
libxl:
error:libxl_pci.c:1300:libxl__add_pcidevs: Domain
1:libxl_device_pci_add failed: -3
libxl:
error:libxl_create.c:1522:domcreate_attach_devices: Domain
1:unable
to add pci devices
Is
someone familiar
with this problem or the next steps needed in order to make it
work
properly?
Steps
to reproduce:
1.
Start xencommons: sudo ./xen/etc/init.d/xencommons start
2.
Assign PCI for
NIC: sudo ./xen/sbin/xl pci-assignable-add 00:1f.6
3.
Create HVM
DomU: sudo ./xen/sbin/xl create domU_hvm.cfg
The
grub command for
xen Dom0 as found in /etc/default/grub:
GRUB_CMDLINE_XEN="dom0=pvh
dom0_mem=8192M,max:8192M loglvl=all sync_console_to_ring=true
com1=115200,8n1 console=com1
iommu=debug,verbose,workaround_bios_bug
iommu_inclusive xen-pciback.passthrough=1"
The
same problem is
present if the above command does not contain
‘xen-pciback.passthrough=1’.
I
attached to this
mail the ‘lspci -v’ output for NIC and domU config file.
Thanks,
Alex.
Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.
