Re: [Xen-devel] hide pci device issue.

["Wu, Feng" <feng.wu@xxxxxxxxx>]

If you hide pci devices for domain 0, it means you detach the device from its original driver and bind it to the pci-stub driver. You still can see it from ‘lspci’.

 

Thanks,

Feng

 

From: xen-devel-bounces@xxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxx] On Behalf Of ???
Sent: Friday, August 23, 2013 12:04 AM
To: xen-devel@xxxxxxxxxxxxx
Subject: [Xen-devel] hide pci device issue.

 

hi,

 

 Sorry to post here, should I ask question about xen here?

 

 if a PCI device is hided via domain0 kernel startup parameter, should it be seen in domain 0's lspci command output?

 

 Below is my grub startup parameter. xen-pciback.hide=(00:02:0)(00:02:1) is used to hide two device.

 

 kernel /xen.gz dom0_mem=1024M cpufreq=xen dom0_max_vcpus=1 dom0_vcpus_pin iommu=1
 module /vmlinuz-3.10.7-1.el6xen.x86_64 ro root=UUID=90faade6-ee45-499c-88a0-a460ae727270 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet xen-pciback.hide=(00:02:0)(00:02:1)

 

 

 In my understanding, the two devices shouldn't be used by domain 0. lspci cannot see the two device.

 

 but lspci still can see the two device. is there misunderstanding for me ?

 

 

 

thanks

huiming

 

 

 

 

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