Re: [Xen-devel] pci hotplug in xcp

To:	Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] pci hotplug in xcp
From:	Ritu kaur <ritu.kaur.us@xxxxxxxxx>
Date:	Wed, 7 Apr 2010 11:56:19 -0700
Cc:	"xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Dave Scott <Dave.Scott@xxxxxxxxxxxxx>
Delivery-date:	Wed, 07 Apr 2010 11:56:55 -0700
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xl pci-attach doesn't seem to work unless vm is rebooted. Steps followed

1. modprobe pciback on dom0
2. execute xl pci-attach 1 0000:08:01.0, following msgs seen...
[-1] libxl.c:2061:libxl_device_pci_add: xc_assign_device failed: Success
[3] libxl.c:1763:libxl_create_pci_backend: Creating pci backend

3. xl pci-list 1
VFn domain bus slot func
0x00 0x0000 0x08 0x01 0x0

4. login into vm, lspci doesn't show anything.

5. vm:~# lspci
vm:~#

6. reboot vm, do lspci again it works.
vm:~# lspci
00:00.0 Ethernet controller: Device feed:face

I want to avoid vm reboot?

Thanks

On Wed, Apr 7, 2010 at 4:09 AM, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> wrote:

On Tue, 6 Apr 2010, Dave Scott wrote:
>
> Hi,
>
> Currently the only way to hotplug is via the ‘xenops’ commandline tool. Try:
>
> # /opt/xensource/debug/xenops plug_pci –domid .. –pci .. –devid 0
>
> And similarly for unplug_pci

xl is also present is XCP so the following should also work:

xl pci-attach <domid> <BDF>

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Re: [Xen-devel] pci hotplug in xcp