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| author | Yi Min Zhao | 2016-04-27 11:44:17 +0200 |
|---|---|---|
| committer | Cornelia Huck | 2016-07-11 09:48:05 +0200 |
| commit | 93d16d81c8af0fe93a04bee8a4cb3259f480cab6 (patch) | |
| tree | 9eba3fcf41a1f91cf634cd32a719eda8a539e026 /hw/misc/ivshmem.c | |
| parent | s390x/pci: replace fid with idx in msg data of msix (diff) | |
| download | qemu-93d16d81c8af0fe93a04bee8a4cb3259f480cab6.tar.gz qemu-93d16d81c8af0fe93a04bee8a4cb3259f480cab6.tar.xz qemu-93d16d81c8af0fe93a04bee8a4cb3259f480cab6.zip | |
s390x/pci: make hot-unplug handler smoother
The current implementation of hot-unplug handler is abrupt. Any pci
operation will be just rejected if pci device is unconfigured. Thus a
pci device can not be reset or destroyed in a right, smooth and safe
way.
Improve this as follows:
- Notify the guest via a HP_EVENT_DECONFIGURE_REQUEST(0x303) event in
the unplug handler, giving it a chance to deconfigure the device via
sclp and allowing us to continue hot-unplug afterwards.
- Set up a timer that will generate the HP_EVENT_CONFIGURE_TO_STBRES
(0x304) event as before if the guest did not react after an adequate
time.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/misc/ivshmem.c')
0 files changed, 0 insertions, 0 deletions