qemu/hw/scsi
Alexander Graf 8118f0950f migration: Append JSON description of migration stream
One of the annoyances of the current migration format is the fact that
it's not self-describing. In fact, it's not properly describing at all.
Some code randomly scattered throughout QEMU elaborates roughly how to
read and write a stream of bytes.

We discussed an idea during KVM Forum 2013 to add a JSON description of
the migration protocol itself to the migration stream. This patch
adds a section after the VM_END migration end marker that contains
description data on what the device sections of the stream are composed of.

This approach is backwards compatible with any QEMU version reading the
stream, because QEMU just stops reading after the VM_END marker and ignores
any data following it.

With an additional external program this allows us to decipher the
contents of any migration stream and hopefully make migration bugs easier
to track down.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-02-05 17:16:14 +01:00
..
esp-pci.c esp: fix coding standards 2014-11-10 13:58:14 +01:00
esp.c esp: Do not overwrite ESP_TCHI after reset 2014-11-12 10:27:03 +01:00
lsi53c895a.c hw/scsi/lsi53c895a: add support for additional diag / debug registers 2015-01-14 10:38:57 +01:00
Makefile.objs virtio-scsi-dataplane: Code to run virtio-scsi on iothread 2014-09-30 11:11:20 +02:00
megasas.c scsi: Fuse g_malloc(); memset() into g_malloc0() 2014-12-15 12:21:02 +01:00
mfi.h megasas: add MegaRAID SAS 2108 emulation 2014-10-31 11:29:00 +01:00
scsi-bus.c scsi: Fix scsi_req_cancel_async for no aiocb req 2015-02-02 16:55:11 +01:00
scsi-disk.c scsi-disk: provide maximum transfer length 2014-12-15 12:21:02 +01:00
scsi-generic.c scsi: Drop superfluous conditionals around g_free() 2014-12-15 12:21:02 +01:00
spapr_vscsi.c migration: Append JSON description of migration stream 2015-02-05 17:16:14 +01:00
srp.h spapr-vscsi: add task management 2013-09-12 08:46:21 +02:00
vhost-scsi.c vhost: Fix vhostfd leak in error branch 2014-12-01 12:29:35 +00:00
viosrp.h
virtio-scsi-dataplane.c virtio-scsi: dataplane: suppress guest notification 2014-11-12 11:19:19 +01:00
virtio-scsi.c virtio: fix feature bit checks 2015-01-27 14:46:17 +02:00
vmw_pvscsi.c scsi: Convert pvscsi HBA to hotplug handler API 2014-10-15 05:03:14 +02:00
vmw_pvscsi.h