Hi,
The migration code expects the RAM block name to match between the
source and destination. However the backend type may change, so it is
possible (so far) to migrate from a hostmem-file to a hostmem-memfd
for example.
However, hostmem backends use inconsistent RAM naming, which can cause
a name mismatch. hostmem-file and hostmem-memfd use the whole object
path as memory name, while -ram use only the "component" (or basename)
of the path.
This series adds global/compat property support for objects others
than TYPE_DEVICE (only TYPE_USER_CREATABLE for now), and a new compat
property "x-component-name" to hostmem-ram. Machines >= 3.1 will use
the whole path for the -ram memory name (like -file and -memfd).
Marc-André Lureau (9):
qom/user-creatable: add a few helper macros
accel: register global_props like machine globals
qdev: move qdev_prop_register_global_list() to tests
qom/globals: move qdev globals to qom
qom/globals: generalize object_property_set_globals()
qom/object: set globals when initializing object
tests: add user-creatable test to test-qdev-global-props
hw/i386: add pc-i440fx-3.1 & pc-q35-3.1
hostmem-ram: use whole path for memory region name with >= 3.1
include/hw/compat.h | 6 +-
include/hw/i386/pc.h | 5 +-
include/hw/qdev-core.h | 20 ---
include/hw/qdev-properties.h | 34 +---
include/qom/globals.h | 32 ++++
include/qom/object_interfaces.h | 4 +
accel/accel.c | 9 +-
backends/hostmem-ram.c | 47 +++++-
hw/core/machine.c | 2 +-
hw/core/qdev-properties.c | 97 -----------
hw/core/qdev.c | 6 -
hw/i386/pc_piix.c | 15 +-
hw/i386/pc_q35.c | 13 +-
qom/cpu.c | 2 +-
qom/globals.c | 81 ++++++++++
qom/object.c | 6 +-
qom/object_interfaces.c | 9 +-
target/i386/cpu.c | 2 +-
target/sparc/cpu.c | 2 +-
...dev-global-props.c => test-global-props.c} | 150 +++++++++++++++---
vl.c | 8 +-
qom/Makefile.objs | 2 +-
tests/Makefile.include | 4 +-
23 files changed, 350 insertions(+), 206 deletions(-)
create mode 100644 include/qom/globals.h
create mode 100644 qom/globals.c
rename tests/{test-qdev-global-props.c => test-global-props.c} (71%)
--
2.19.0.rc1
