[Xen-devel] [PATCH] Fix xm pci-list for inactive managed domains

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

Hi,

I found a problem of xm pci-list.  In inactive managed domains, 
I cannot confirm virtual slot numbers of PCI devices by using 
xm pci-list as follows.  In fact, I can confirm virtual slot 
numbers of PCI devices by using xm pci-list if active domains.

# cat /etc/xen/vm1 | grep pci
pci = [ '01:00.0@6','01:00.1@7' ]
# xm new vm1
Using config file "./vm1".
# xm pci-list vm1
domain   bus   slot   func
0x0  0x01   0x00    0x0
0x0  0x01   0x00    0x1
# xm list --long vm1
(domain
<<snip>>
    (device
        (pci
            (uuid 7887cf50-8919-0dee-9811-992cf259daf6)
            (dev
                (slot 0x00)
                (requested_vslot 0x6)
                (domain 0x0)
                (uuid 85352de7-53c7-8a94-96d2-68852825674c)
                (bus 0x01)
                (func 0x0)
            )
            (dev
                (slot 0x00)
                (requested_vslot 0x7)
                (domain 0x0)
                (uuid 62e52cb4-e47d-12ce-42ba-860ee44026c8)
                (bus 0x01)
                (func 0x1)
            )
        )
    )
)
# xm start vm1
# xm pci-list vm1
VSlt domain   bus   slot   func
0x06    0x0  0x01   0x00    0x0
0x07    0x0  0x01   0x00    0x1
# xm list --long vm1
(domain
<<snip>>
    (device
        (pci
            (dev
                (slot 0x00)
                (domain 0x0000)
                (uuid 85352de7-53c7-8a94-96d2-68852825674c)
                (vslot 0x06)
                (bus 0x01)
                (func 0x0)
            )
            (dev
                (slot 0x00)
                (domain 0x0000)
                (uuid 62e52cb4-e47d-12ce-42ba-860ee44026c8)
                (vslot 0x07)
                (bus 0x01)
                (func 0x1)
            )
            (uuid 7887cf50-8919-0dee-9811-992cf259daf6)
            (backend 0)
        )
    )
)


Virtual slot numbers of PCI devices in inactive managed domains 
are shown by this patch. 

# xm new vm1
Using config file "/etc/xen/vm1".
# xm pci-list vm1
VSlt domain   bus   slot   func
0x6    0x0  0x01   0x00    0x0
0x7    0x0  0x01   0x00    0x1

Cc: Simon Horman <horms@xxxxxxxxxxxx>
Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>

Best regards,
 Kan

Attachment: xm_pci_list.patch
Description: Binary data

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