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| author | Roger Pau Monne <roger.pau@citrix.com> | 2014-11-13 18:42:09 +0100 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2014-11-14 11:12:38 +0000 |
| commit | 2f01dfacb56bc7a0d4639adc9dff9aae131e6216 (patch) | |
| tree | 8eb0745c9abb64db2873d8874816cbb890fb683f /hw/core/loader.c | |
| parent | 91ab2ed7221c70ed7fd09ab2665b1f0493c775a4 (diff) | |
| download | hqemu-2f01dfacb56bc7a0d4639adc9dff9aae131e6216.zip hqemu-2f01dfacb56bc7a0d4639adc9dff9aae131e6216.tar.gz | |
xen_disk: fix unmapping of persistent grants
This patch fixes two issues with persistent grants and the disk PV backend
(Qdisk):
- Keep track of memory regions where persistent grants have been mapped
since we need to unmap them as a whole. It is not possible to unmap a
single grant if it has been batch-mapped. A new check has also been added
to make sure persistent grants are only used if the whole mapped region
can be persistently mapped in the batch_maps case.
- Unmap persistent grants before switching to the closed state, so the
frontend can also free them.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reported-by: George Dunlap <george.dunlap@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: George Dunlap <george.dunlap@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'hw/core/loader.c')
0 files changed, 0 insertions, 0 deletions
