[Xen-users] problem of xen PCI-passthrough

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Subject:	[Xen-users] problem of xen PCI-passthrough
From:	Mingfan Lu <mingfan.lu@xxxxxxxxx>
Date:	Wed, 9 Jun 2010 00:16:23 +0800
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My Configuration

Xen-4.0 + DOM0(2.6.31.13 pv) + DOMU(2.6.31.13 pv)

The domu’s configuration is

DOMU configuration:

#=======xenu.conf========

kernel = "/opt/need_packages/Kernel/euca_install/images/lamp_minimal/vmlinuz-2.6.31.13"

ramdisk = "/opt/need_packages/Kernel/euca_install/images/lamp_minimal/initrd-2.6.31.13.img" #can be created by "mkinitrd"

memory = 512

vcpus=1

name = "ExampleDomainXenU"

pci=['01:00.1']

vif = [ ]

disk = [ 'file:/opt/need_packages/Kernel/euca_install/images/lamp_minimal/mini-lamp.fs,xvda1,w','file:/opt/need_packages/Kernel/euca_install/images/lamp_minimal/ephemeral,xvda2,w','file:/opt/need_packages/Kernel/euca_install/images/lamp_minimal/swap,xvda3,w' ]

root = "/dev/xvda1"

extra = "3 swiotlb=force"

I have hidden the pci device to my Domu before create the instance.

Checking: xm pci-list

xm pci-list 4

domain bus slot func

0x0000 0x01 0x00 0x1

But in the domu, using lspci, I could get nothing

In dmesg’s output, I find that:

[ 0.055642] pci_hotplug: PCI Hot Plug PCI Core version: 0.5

[ 0.057885] pcifront pci-0: backend going away!

[ 0.060359] pcifront pci-0: Device is in 6 state. Need to change state on the privileged domain.

What happened?

Thanks

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[Xen-users] problem of xen PCI-passthrough