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block/qdev: Allow configuring WCE with qdev properties

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As cache.writeback is a BlockBackend property and as such more related
to the guest device than the BlockDriverState, we already removed it
from the blockdev-add interface. This patch adds the new way to set it,
as a qdev property of the corresponding guest device.

For example: -drive if=none,file=test.img,node-name=img
             -device ide-hd,drive=img,write-cache=off

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2016-06-23 15:12:35 +02:00
parent 8daea51095
commit f6166a06ff
7 changed files with 25 additions and 1 deletions
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hw/usb/dev-storage.c
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@ -603,6 +603,7 @@ static void usb_msd_realize_storage(USBDevice *dev, Error **errp)
blkconf_serial(&s->conf, &dev->serial);
blkconf_blocksizes(&s->conf);
blkconf_apply_backend_options(&s->conf);
/*
* Hack alert: this pretends to be a block device, but it's really