qemu/hw/block
Paul Durrant 1a72d9ae31 xen: introduce 'xen-block', 'xen-disk' and 'xen-cdrom'
This patch adds new XenDevice-s: 'xen-disk' and 'xen-cdrom', both derived
from a common 'xen-block' parent type. These will eventually replace the
'xen_disk' (note the underscore rather than hyphen) legacy PV backend but
it is illustrative to build up the implementation incrementally, along with
the XenBus/XenDevice framework. Subsequent patches will therefore add to
these devices' implementation as new features are added to the framework.

After this patch has been applied it is possible to instantiate new
'xen-disk' or 'xen-cdrom' devices with a single 'vdev' parameter, which
accepts values adhering to the Xen VBD naming scheme [1]. For example, a
command-line instantiation of a xen-disk can be done with an argument
similar to the following:

-device xen-disk,vdev=hda

The implementation of the vdev parameter formulates the appropriate VBD
number for use in the PV protocol.

[1] https://xenbits.xen.org/docs/unstable/man/xen-vbd-interface.7.html

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2019-01-14 13:45:40 +00:00
..
dataplane Replace '-enable-kvm' with '-accel kvm' in docs and help texts 2018-06-28 19:05:32 +02:00
block.c block: Remove deprecated -drive option serial 2018-08-15 12:50:39 +02:00
cdrom.c block: Clean up includes 2016-01-20 13:36:23 +01:00
ecc.c block: Clean up includes 2016-01-20 13:36:23 +01:00
fdc.c fdc: fix segfault in fdctrl_stop_transfer() when DMA is disabled 2018-11-19 12:51:22 +01:00
hd-geometry.c Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
m25p80.c hw/block: Use the IEC binary prefix definitions 2018-07-02 15:41:13 +02:00
Makefile.objs xen: introduce 'xen-block', 'xen-disk' and 'xen-cdrom' 2019-01-14 13:45:40 +00:00
nand.c Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
nvme.c nvme: Fix spurious interrupts 2018-11-27 12:59:00 +01:00
nvme.h qemu/queue.h: leave head structs anonymous unless necessary 2019-01-11 15:46:55 +01:00
onenand.c block/noenand: Convert sysbus init function to realize function 2018-12-13 13:47:57 +00:00
pflash_cfi01.c hw/block/pflash_cfi: Convert from DPRINTF() macro to trace events 2018-06-29 15:04:18 +01:00
pflash_cfi02.c hw/block/pflash_cfi: Convert from DPRINTF() macro to trace events 2018-06-29 15:04:18 +01:00
tc58128.c hw/block/tc58128.c: Don't use load_image() 2018-12-14 13:30:52 +00:00
trace-events xen: introduce 'xen-block', 'xen-disk' and 'xen-cdrom' 2019-01-14 13:45:40 +00:00
vhost-user-blk.c vhost-user-blk: start vhost when guest kicks 2018-11-05 13:24:02 -05:00
virtio-blk.c virtio-blk: fix comment for virtio_blk_rw_complete as nalloc is initially -1 2018-12-12 09:16:55 +00:00
xen-block.c xen: introduce 'xen-block', 'xen-disk' and 'xen-cdrom' 2019-01-14 13:45:40 +00:00
xen_blkif.h xen: import ring.h from xen 2017-04-21 12:41:29 -07:00
xen_disk.c xen: re-name XenDevice to XenLegacyDevice... 2019-01-14 13:45:40 +00:00