From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: [Qemu-devel] USB PCI host bus adapter hot plug
Date: Mon, 11 Aug 2014 14:02:52 +1000 [thread overview]
Message-ID: <53E8406C.2010304@ozlabs.ru> (raw)
Hi!
I noticed that QMP's "device_add usb-ehci,id=i2,bus=pci.0" fails on PCI
hotplug. The same for pci-ohci and this is because their initfn() do
"dc->hotpluggable = false". So I removed those and now I can hotplug USB
hosts but none of them is able to actually work:
root@aiktest-le:~# echo 1 >/sys/bus/pci/rescan
[ 41.143062] ohci-pci 0000:00:01.0: init err (c8700000 0000)
[ 41.143133] ohci-pci 0000:00:01.0: can't start
[ 41.143227] ohci-pci 0000:00:01.0: startup error -75
[ 41.144202] ohci-pci 0000:00:01.0: init 0000:00:01.0 fail, -75
root@aiktest-le:~# echo 1 >/sys/bus/pci/rescan
[ 43.691067] ehci-pci 0000:00:01.0: can't setup: -110
[ 43.692424] ehci-pci 0000:00:01.0: init 0000:00:01.0 fail, -110
Why is that? Is QEMU just missing some bits or there is some fundamental
issue which I just do not see? Thanks!
--
Alexey
next reply other threads:[~2014-08-11 4:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 4:02 Alexey Kardashevskiy [this message]
2014-08-11 5:59 ` [Qemu-devel] USB PCI host bus adapter hot plug Gonglei (Arei)
2014-08-12 6:05 ` Alexey Kardashevskiy
2014-08-13 4:52 ` Alexey Kardashevskiy
2014-08-13 5:00 ` Gonglei (Arei)
2014-08-13 6:02 ` Alexey Kardashevskiy
2014-08-28 8:24 ` Gerd Hoffmann
2014-08-28 8:31 ` Gonglei (Arei)
2014-08-28 8:35 ` Gerd Hoffmann
2014-08-29 3:23 ` Gonglei (Arei)
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