| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-users] problem of xen PCI-passthrough |
| From: | Mingfan Lu <mingfan.lu@xxxxxxxxx> |
| Date: | Wed, 9 Jun 2010 00:16:23 +0800 |
| Delivery-date: | 2010年6月08日 09:20:09 -0700 |
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Hi
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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