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Avihai Horon 31bcbbb5be vfio/migration: Implement VFIO migration protocol v2 
Implement the basic mandatory part of VFIO migration protocol v2.
This includes all functionality that is necessary to support
VFIO_MIGRATION_STOP_COPY part of the v2 protocol.

The two protocols, v1 and v2, will co-exist and in the following patches
v1 protocol code will be removed.

There are several main differences between v1 and v2 protocols:
- VFIO device state is now represented as a finite state machine instead
  of a bitmap.

- Migration interface with kernel is now done using VFIO_DEVICE_FEATURE
  ioctl and normal read() and write() instead of the migration region.

- Pre-copy is made optional in v2 protocol. Support for pre-copy will be
  added later on.

Detailed information about VFIO migration protocol v2 and its difference
compared to v1 protocol can be found here [1].

[1]
https://lore.kernel.org/all/20220224142024.147653-10-yishaih@nvidia.com/

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>.
Link: https://lore.kernel.org/r/20230216143630.25610-9-avihaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2023-02-16 12:13:46 -07:00
..
acpi pcihp: make bridge describe itself using AcpiDevAmlIfClass:build_dev_aml 2023-01-28 06:21:29 -05:00
adc hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
arm Do not include "qemu/error-report.h" in headers that do not need it 2023-02-14 09:11:27 +01:00
audio introduce -audio as a replacement for -soundhw 2022-05-14 12:33:44 +02:00
block include/hw/block: Include hw/block/block.h where needed 2023-01-20 07:25:06 +01:00
char include/hw: Do not include "hw/registerfields.h" in headers that don't need it 2023-02-14 09:02:42 +01:00
core accel: introduce accelerator blocker API 2023-01-11 09:59:39 +01:00
cpu Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
cris include: Include headers where needed 2023-01-08 01:54:22 -05:00
cxl hw/cxl: Clean up includes 2023-02-08 07:16:23 +01:00
display include: Include headers where needed 2023-01-08 01:54:22 -05:00
dma include: Include headers where needed 2023-01-08 01:54:22 -05:00
firmware hw/smbios: add core_count2 to smbios table type 4 2022-11-07 14:08:17 -05:00
gpio hw/gpio: replace HWADDR_PRIx with PRIx64 2022-05-25 10:31:33 +02:00
hyperv hw/hyperv/vmbus: Remove unused vmbus_load/save_req() 2022-05-30 19:49:42 +02:00
i2c hw/i2c/versatile_i2c: Replace TYPE_VERSATILE_I2C -> TYPE_ARM_SBCON_I2C 2023-01-23 13:32:38 +00:00
i386 x86: don't let decompressed kernel image clobber setup_data 2023-01-28 06:21:29 -05:00
ide virtio,pc,pci: features, cleanups, fixes 2023-01-09 10:07:12 +00:00
input hw/input: Clean up includes 2023-02-08 07:16:23 +01:00
intc hw/intc: Extract the IRQ counting functions into a separate file 2023-01-13 16:22:57 +01:00
ipack ipack: Rename ipack_bus_new_inplace() to ipack_bus_init() 2021-09-30 13:42:10 +01:00
ipmi Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
isa hw/isa/isa-bus: Turn isa_build_aml() into qbus_build_aml() 2023-01-27 11:47:02 -05:00
kvm target/i386: always create kvmclock device 2020-09-30 19:11:36 +02:00
loongarch hw/loongarch/virt: Add cfi01 pflash device 2022-12-15 15:46:12 +08:00
m68k hw/m68k/mcf: Add missing 'exec/hwaddr.h' header 2022-02-21 10:35:13 +01:00
mem acpi/nvdimm: Define trace events for NVDIMM and substitute nvdimm_debug() 2022-07-26 10:37:46 -04:00
mips hw/mips/bootloader: Handle buffers as opaque arrays 2023-01-13 09:32:32 +01:00
misc Don't include headers already included by qemu/osdep.h 2023-02-08 07:28:05 +01:00
net hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
nubus Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
nvram aspeed queue: 2023-02-07 20:13:38 +00:00
openrisc hw/openrisc: Split re-usable boot time apis out to boot.c 2022-09-04 07:02:56 +01:00
pci Don't include headers already included by qemu/osdep.h 2023-02-08 07:28:05 +01:00
pci-bridge pci/pci_expander_bridge: For CXL HB delay the HB register memory region setup. 2022-06-09 19:32:49 -04:00
pci-host ppc/pnv/pci: Update PHB5 version register 2023-02-05 06:40:28 -03:00
ppc include/hw/ppc include/hw/pci-host: Drop extra typedefs 2023-01-20 07:25:22 +01:00
rdma qapi: introduce x-query-rdma QMP command 2021-11-02 15:55:14 +00:00
remote include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
riscv hw/riscv: change riscv_compute_fdt_addr() semantics 2023-02-07 08:19:23 +10:00
rtc hw/rtc/mc146818rtc: Make the mc146818 RTC device target independent 2023-01-13 16:22:57 +01:00
rx Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
s390x s390x/pci: reset ISM passthrough devices on shutdown and system reset 2022-12-15 15:02:34 +01:00
scsi include/hw/scsi/scsi.h: Remove unused scsi_legacy_handle_cmdline() prototype 2022-10-22 23:21:16 +02:00
sd hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
sensor hw/sensor: Add IC_DEVICE_ID to ISL voltage regulators 2022-07-14 16:24:38 +02:00
sh4 hw/intc/sh_intc: Inline and drop sh_intc_source() function 2021-10-30 18:39:37 +02:00
southbridge include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
sparc hw: Replace anti-social QOM type names 2021-03-19 15:18:43 +01:00
ssi include/hw: Do not include "hw/registerfields.h" in headers that don't need it 2023-02-14 09:02:42 +01:00
timer include: Include headers where needed 2023-01-08 01:54:22 -05:00
tricore hw/tricore: Clean up includes 2023-02-08 07:16:23 +01:00
usb include: Include headers where needed 2023-01-08 01:54:22 -05:00
vfio vfio/migration: Implement VFIO migration protocol v2 2023-02-16 12:13:46 -07:00
virtio virtio-mem: Migrate immutable properties early 2023-02-06 19:22:56 +01:00
watchdog hw/watchdog/wdt_aspeed: Log unimplemented registers as UNIMP level 2023-02-07 09:02:05 +01:00
xen hw/xen: use G_GNUC_PRINTF/SCANF for various functions 2023-01-11 10:44:33 +01:00
xtensa Include hw/irq.h a lot less 2019-08-16 13:31:52 +02:00
boards.h virtio,pc,pci: features, cleanups, fixes 2023-01-09 10:07:12 +00:00
clock.h host-utils: add 128-bit quotient support to divu128/divs128 2021-10-27 17:10:00 -07:00
elf_ops.h treewide: Remove the unnecessary space before semicolon 2022-10-24 13:41:10 +02:00
fw-path-provider.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
hotplug.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
hw.h compiler.h: replace QEMU_NORETURN with G_NORETURN 2022-04-21 17:03:51 +04:00
ide.h include/hw/ide: Unexport pci_piix3_xen_ide_unplug() 2022-06-09 14:47:42 +01:00
irq.h hw/core/irq: remove unused 'qemu_irq_split' function 2022-04-21 11:37:04 +01:00
loader-fit.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
loader.h hw/core/loader: Remove declarations of option_rom_has_mr/rom_file_has_mr 2023-02-07 09:02:04 +01:00
nmi.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
or-irq.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
pcmcia.h Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
platform-bus.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
ptimer.h ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY 2022-05-19 16:19:03 +01:00
qdev-clock.h clock: Add ClockEvent parameter to callbacks 2021-03-08 17:20:01 +00:00
qdev-core.h hw: Remove device_legacy_reset() 2022-12-16 15:55:32 +00:00
qdev-dma.h Supply missing header guards 2019-06-12 13:20:21 +02:00
qdev-properties-system.h qdev: Reuse DEFINE_PROP in all DEFINE_PROP_* macros 2020-12-18 15:20:17 -05:00
qdev-properties.h qdev-properties: Add a new macro with bitmask check for uint64_t property 2022-05-14 12:32:41 +02:00
register.h hw/core/register: Add more 64-bit utilities 2021-09-01 11:59:12 +10:00
registerfields.h hw/registerfields: Add shared fields macros 2022-06-22 09:49:34 +02:00
resettable.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
stream.h hw/core/stream: Rename StreamSlave as StreamSink 2020-12-10 12:15:04 -05:00
sysbus.h qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros 2020-09-18 14:12:32 -04:00
usb.h hw/usb: fix tab indentation 2022-11-08 11:13:48 +01:00
vmstate-if.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00