qemu/softmmu
Avihai Horon 9d3103c81b sysemu: Add prepare callback to struct VMChangeStateEntry
Add prepare callback to struct VMChangeStateEntry.

The prepare callback is optional and can be set by the new function
qemu_add_vm_change_state_handler_prio_full() that allows setting this
callback in addition to the main callback.

The prepare callbacks and main callbacks are called in two separate
phases: First all prepare callbacks are called and only then all main
callbacks are called.

The purpose of the new prepare callback is to allow all devices to run a
preliminary task before calling the devices' main callbacks.

This will facilitate adding P2P support for VFIO migration where all
VFIO devices need to be put in an intermediate P2P quiescent state
before being stopped or started by the main callback.

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: YangHang Liu <yanghliu@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2023-09-11 08:34:05 +02:00
..
arch_init.c softmmu: Add qemu_init_arch_modules() 2022-03-06 13:15:42 +01:00
async-teardown.c util/async-teardown.c: move to softmmu/, only build it when system build is requested 2023-09-01 23:46:20 +02:00
balloon.c qapi: Restrict balloon-related commands to machine code 2020-09-29 15:41:35 +02:00
bootdevice.c machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
cpu-throttle.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
cpu-timers.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
cpus.c accel: Remove HAX accelerator 2023-08-31 19:46:43 +02:00
datadir.c meson: Prefix each element of firmware path 2022-07-13 16:58:57 +02:00
device_tree.c device-tree: add re-randomization helper function 2022-10-27 11:34:31 +01:00
dirtylimit.c softmmu/dirtylimit: Convert free to g_free 2023-08-29 10:19:03 +08:00
dma-helpers.c dma-helpers: prevent dma_blk_cb() vs dma_aio_cancel() race 2023-02-23 19:49:35 +01:00
globals.c accel/tcg: Use one_insn_per_tb global instead of old singlestep global 2023-05-02 15:47:40 +01:00
icount.c accel/tcg: spelling fixes 2023-08-31 19:47:43 +02:00
ioport.c accel/tcg: spelling fixes 2023-08-31 19:47:43 +02:00
main.c ui/cocoa: Run qemu_init in the main thread 2022-09-23 14:36:33 +02:00
memory.c hostmem-file: add offset option 2023-05-23 16:47:03 +02:00
memory_mapping.c bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
meson.build util/async-teardown.c: move to softmmu/, only build it when system build is requested 2023-09-01 23:46:20 +02:00
physmem.c softmmu: Use async_run_on_cpu in tcg_commit 2023-08-29 09:55:06 -07:00
qdev-monitor.c bulk: Remove pointless QOM casts 2023-06-05 20:48:34 +02:00
qemu-seccomp.c seccomp: Get actual errno value from failed seccomp functions 2022-10-26 13:32:58 +01:00
qtest.c qtest: irq_intercept_[out/in]: return FAIL if no intercepts are installed 2023-08-22 17:31:01 +01:00
rtc.c rtc: Use time_t for passing and returning time offsets 2023-08-31 09:45:18 +01:00
runstate-action.c runstate: cleanup reboot and panic actions 2021-01-21 13:00:41 +01:00
runstate-hmp-cmds.c hmp: Add 'one-insn-per-tb' command equivalent to 'singlestep' 2023-05-02 15:47:40 +01:00
runstate.c sysemu: Add prepare callback to struct VMChangeStateEntry 2023-09-11 08:34:05 +02:00
timers-state.h qemu/atomic: Add aligned_{int64,uint64}_t types 2021-07-21 07:45:38 -10:00
tpm-hmp-cmds.c tpm: Move HMP commands from monitor/ to softmmu/ 2023-02-04 07:56:54 +01:00
tpm.c qapi: More complex uses of QAPI_LIST_APPEND 2021-01-28 08:08:45 +01:00
trace-events softmmu/dirtylimit: Implement virtual CPU throttle 2022-07-20 12:15:08 +01:00
trace.h softmmu: Add missing trace-events file 2020-09-09 17:15:18 +01:00
vl.c * only build util/async-teardown.c when system build is requested 2023-09-07 10:29:06 -04:00
watchpoint.c softmmu: Restore use of CPU watchpoint for all accelerators 2023-03-28 15:24:06 -07:00