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a71754e5b0
(With the previous atapi_dma flag recovery) If migration happens between the ATAPI command being written and the bmdma being started, the DMA is dropped. Eventually the guest times out and recovers, but that can take many seconds. (This is rare, on a pingpong reading the CD continuously I hit this about ~1/30-1/50 migrates) I don't think we've got enough state to be able to recover safely at this point, so I throw a 'medium error, no seek complete' that I'm assuming guests will try and recover from an apparently dirty CD. OK, it's a hack, the real solution is probably to push a lot of ATAPI state into the migration stream, but this is a fix that works with no stream changes. Tested only on Linux (both RHEL5 (pre-libata) and RHEL7). Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> |
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| .. | ||
| ahci.c | ||
| ahci.h | ||
| atapi.c | ||
| cmd646.c | ||
| core.c | ||
| ich.c | ||
| internal.h | ||
| isa.c | ||
| macio.c | ||
| Makefile.objs | ||
| microdrive.c | ||
| mmio.c | ||
| pci.c | ||
| pci.h | ||
| piix.c | ||
| qdev.c | ||
| via.c | ||