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root / include / migration @ 2dbafdc0

Name Size
block.h 504 Bytes
migration.h 5.1 kB
page_cache.h 1.9 kB
qemu-file.h 7.7 kB
vmstate.h 35.7 kB

Latest revisions

# Date Author Comment
c961514f 01/13/2014 01:39 pm Eduardo Habkost

qemu-file: Make a few functions non-static

The QEMUFile code will be moved to qemu-file.c. This will require making
the following functions non-static because they are used by the savevm.c
code:

  • qemu_peek_byte()
  • qemu_peek_buffer()
  • qemu_file_skip()...
b5503338 01/13/2014 01:39 pm Eduardo Habkost

migration: Move QEMU_VM_* defines to migration/migration.h

The VMState code will be moved to vmstate.c and it uses some of the
QEMU_VM_* constants, so move it to a header.

Signed-off-by: Eduardo Habkost <>
Reviewed-by: Orit Wasserman <>...
a1f05e79 12/17/2013 10:12 pm Peter Maydell

vmstate: Add support for an array of ptimer_state *

Add support for defining a vmstate field which is an array
of pointers to structures, and use this to define a
VMSTATE_PTIMER_ARRAY() which allows an array of ptimer_state*
to be used by devices.

Signed-off-by: Peter Maydell <>...
7102400d 09/24/2013 02:22 pm Alexey Kardashevskiy

migration: add version supporting macros for struct pointer

This adds version supporting macros VMSTATE_STRUCT_POINTER_TEST_V
and VMSTATE_STRUCT_POINTER_V in addition to the already existing
VMSTATE_STRUCT_POINTER and VMSTATE_STRUCT_POINTER_TEST macros.
...
02edd2e7 07/29/2013 06:19 pm Stefan Hajnoczi

migration: fix spice migration

Commit 29ae8a4133082e16970c9d4be09f4b6a15034617 ("rdma: introduce
MIG_STATE_NONE and change MIG_STATE_SETUP state transition") changed the
state transitions during migration setup.

Spice used to be notified with MIG_STATE_ACTIVE and it detected this...
ed4fbd10 07/23/2013 02:06 pm Michael R. Hines

rdma: account for the time spent in MIG_STATE_SETUP through QMP

Using the previous patches, we're now able to timestamp the SETUP
state. Once we have this time, let the user know about it in the
schema.

Reviewed-by: Juan Quintela <>
Reviewed-by: Eric Blake <>...
2da776db 07/23/2013 12:12 pm Michael R. Hines

rdma: core logic

Code that does need to be visible is kept
well contained inside this file and this is the only
new additional file to the entire patch.

This file includes the entire protocol and interfaces
required to perform RDMA migration.

Also, the configure and Makefile modifications to link...
44c3b58c 07/23/2013 12:11 pm Michael R. Hines

rdma: introduce ram_handle_compressed()

This gives RDMA shared access to madvise() on the destination side
when an entire chunk is found to be zero.

Reviewed-by: Juan Quintela <>
Reviewed-by: Paolo Bonzini <>
Reviewed-by: Chegu Vinod <>...
323004a3 07/19/2013 07:29 am Peter Lieven

block-migration: efficiently encode zero blocks

this patch adds a efficient encoding for zero blocks by
adding a new flag indicating a block is completely zero.

additionally bdrv_write_zeros() is used at the destination
to efficiently write these zeroes. depending on the implementation...
bde1e2ec 07/12/2013 09:34 pm Chegu Vinod

Add 'auto-converge' migration capability

The auto-converge migration capability allows the user to specify if they
choose live migration seqeunce to automatically detect and force convergence.

Signed-off-by: Chegu Vinod <>
Reviewed-by: Paolo Bonzini <>...

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