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[Xen-users] Install issues for dome as a driver domain for secondary nic with pci-passthrough



Hi everyone,

I am attempting to setup a domU connected to my secondary nic with pci-passthrough, which I plan to use as a firewall for future domU's.  For my dom0 I am using ubuntu 12.10 and have recompiled the kernel to include all the xen parts.

( In dom0 )
# cat /boot/config-3.5.7.4 | grep -i xen
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=500
CONFIG_XEN_SAVE_RESTORE=y
CONFIG_PCI_XEN=y
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_XEN_BLKDEV_FRONTEND=y
CONFIG_XEN_BLKDEV_BACKEND=m
CONFIG_NETXEN_NIC=y
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_NETDEV_BACKEND=y
CONFIG_HVC_XEN=y
CONFIG_HVC_XEN_FRONTEND=y
# Xen driver support
CONFIG_XEN_BALLOON=y
CONFIG_XEN_SELFBALLOONING=y
CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_BACKEND=y
CONFIG_XENFS=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=y
CONFIG_XEN_GNTDEV=y
CONFIG_XEN_GRANT_DEV_ALLOC=y
CONFIG_SWIOTLB_XEN=y
CONFIG_XEN_TMEM=y
CONFIG_XEN_PCIDEV_BACKEND=y
CONFIG_XEN_PRIVCMD=y
CONFIG_XEN_ACPI_PROCESSOR=y

My /etc/default/grub file has:
GRUB_CMDLINE_LINUX="apparmor=0 xen-pciback.hide=(02:01.0)"
GRUB_CMDLINE_XEN="dom0_mem=384M,max:384M dom0_max_vcpus=1 no-bootscrub"

In /etc/xen/xl.conf
run_hotplug_scripts=0
because I eventually want to have additional domU's connect the firewall as a backend

# xl pci-assignable-list
0000:02:01.0

This is the correct BDF for my second nic, so I believe that I have pci-passthrough setup correctly.

I have a second 20g disk at /dev/sdb that I will be using for the lvm setup
# lvm pvcreate /dev/sdb
# lvm vgcreate DomUs /dev/sdb
# lvm lvcreate -L 10g -n firewall DomUs
# mkfs.ext4 /dev/DomUs/firewall

I have downloaded initrd.gz and vmlinuz from http://mirror.anl.gov/pub/ubuntu/dists/quantal/main/installer-amd64/current/images/netboot/xen/ and although there is no md5 entry for the two files in http://mirror.anl.gov/pub/ubuntu/dists/quantal/main/installer-amd64/current/images/MD5SUMS I don't think my problem has to do with corruption because I have redownloaded these two files multiple times.

This is what I have for /etc/xen/firewall.cfg

name = "firewall"
memory = 512
disk = ['phy:/dev/DomUs/firewall,xvda,w']
pci = ['0000:02:01.0']
vif = ['script=vif-nat']
kernel = "/var/lib/xen/images/ubuntu12.10-netboot/vmlinuz"
ramdisk = "/var/lib/xen/images/ubuntu12.10-netboot/initrd.gz"
extra = "debian-installer/exit/always_halt=true -- console=hvc0 -- iommu=soft"

The installer begins and then fails while trying to connect to the internet.  For right now I am running this all inside of VMware Fusion with two network adapters set in bridge mode.  My router is running DHCP and my dom0 has no issues receiving an IP address, so I thought the same would be true for eth1.  I have also tried manually assigning an ip, both manually inside of the installer and also with

vif = ['ip="192.168.1.30, NETMASK="255.255.255.0", GATEWAY="192.168.1.1, script=vif-nat"']

After aborting the install i see:
# cat /var/log/xen/xl-firewall.log 
Waiting for domain firewall (domid 1) to die [pid 1250]
Domain 1 has shut down, reason code 0 0x0
Action for shutdown reason code 0 is destroy
Domain 1 needs to be cleaned up: destroying the domain
libxl: error: libxl_device.c:1085:libxl__wait_for_backend: Backend /local/domain/0/backend/pci/1/0 not ready
Done. Exiting now

I feel like I am missing a step or basic setting somewhere.  Any suggestions would be greatly appreciated. 

 - Danny
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