qemu/include
Peter Maydell 71b3ea373b hw/core/reset: Implement qemu_register_reset via qemu_register_resettable
Reimplement qemu_register_reset() via qemu_register_resettable().

We define a new LegacyReset object which implements Resettable and
defines its reset hold phase method to call a QEMUResetHandler
function.  When qemu_register_reset() is called, we create a new
LegacyReset object and add it to the simulation_reset
ResettableContainer.  When qemu_unregister_reset() is called, we find
the LegacyReset object in the container and remove it.

This implementation of qemu_unregister_reset() means we'll end up
scanning the ResetContainer's list of child objects twice, once
to find the LegacyReset object, and once in g_ptr_array_remove().
In theory we could avoid this by having the ResettableContainer
interface include a resettable_container_remove_with_equal_func()
that took a callback method so that we could use
g_ptr_array_find_with_equal_func() and g_ptr_array_remove_index().
But we don't expect qemu_unregister_reset() to be called frequently
or in hot paths, and we expect the simulation_reset container to
usually not have many children.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20240220160622.114437-9-peter.maydell@linaro.org
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
2024-02-27 13:01:42 +00:00
..
authz
block virtio: Re-enable notifications after drain 2024-02-07 21:51:03 +01:00
chardev
crypto crypto: Modify the qcrypto_block_create to support creation flags 2024-02-09 12:50:37 +00:00
disas
exec include/exec/memory.h: correct typos 2024-02-21 08:16:43 +03:00
fpu
gdbstub gdbstub: Add syscall entry/return hooks 2024-02-09 17:52:40 +00:00
hw hw/core: Add ResetContainer which holds objects implementing Resettable 2024-02-27 13:01:42 +00:00
io
libdecnumber
migration
monitor
net qapi: Move @String out of common.json to discourage reuse 2024-02-12 10:04:32 +01:00
qapi
qemu chardev/parallel: Don't close stdin on inappropriate device 2024-02-14 07:44:38 +01:00
qom include/qom/object.h: New OBJECT_DEFINE_SIMPLE_TYPE{, _WITH_INTERFACES} macros 2024-02-27 13:01:42 +00:00
scsi
semihosting
standard-headers
sysemu hw/core/reset: Implement qemu_register_reset via qemu_register_resettable 2024-02-27 13:01:42 +00:00
tcg tcg: Increase width of temp_subindex 2024-02-13 07:42:45 -10:00
ui
user gdbstub: Add syscall entry/return hooks 2024-02-09 17:52:40 +00:00
elf.h
glib-compat.h
qemu-io.h
qemu-main.h