diff options
| author | Thomas Huth <thuth@redhat.com> | 2016-12-14 22:44:17 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-01-31 10:10:13 +1100 |
| commit | b99260ebbb5844da9e77fbcaa73b7b6980a68acf (patch) | |
| tree | 2601a8e3e96d534805a01ed5787b3b00c6143a69 /include/hw/usb.h | |
| parent | e122090df3e681b42d19a55486ff5c54f2c1e717 (diff) | |
hw/ppc/spapr: Fix boot path of usb-host storage devices
When passing through an USB storage device to a pseries guest, it
is currently not possible to automatically boot from the device
if the "bootindex" property has been specified, too (e.g. when using
"-device nec-usb-xhci -device usb-host,hostbus=1,hostaddr=2,bootindex=0"
at the command line). The problem is that QEMU builds a device tree path
like "/pci@800000020000000/usb@0/usb-host@1" and passes it to SLOF
in the /chosen/qemu,boot-list property. SLOF, however, probes the
USB device, recognizes that it is a storage device and thus changes
its name to "storage", and additionally adds a child node for the
SCSI LUN, so the correct boot path in SLOF is something like
"/pci@800000020000000/usb@0/storage@1/disk@101000000000000" instead.
So when we detect an USB mass storage device with SCSI interface,
we've got to adjust the firmware boot-device path properly that
SLOF can automatically boot from the device.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1354177
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/hw/usb.h')
| -rw-r--r-- | include/hw/usb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/usb.h b/include/hw/usb.h index 847c9dec7f..43838c9f5d 100644 --- a/include/hw/usb.h +++ b/include/hw/usb.h @@ -471,6 +471,7 @@ void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p); /* usb-linux.c */ USBDevice *usb_host_device_open(USBBus *bus, const char *devname); void hmp_info_usbhost(Monitor *mon, const QDict *qdict); +bool usb_host_dev_is_scsi_storage(USBDevice *usbdev); /* usb ports of the VM */ |