[PATCH v2 00/51] migration patches for VFIO

[Juan Quintela]

Hi

On this v2:

- Remove the stop of the guest to calculate the size
- Rebase on latest upstream.

Please review.

[v1/RFC]
VFIO migration has several requirements:
- the size of the state is only known when the guest is stopped
- they need to send possible lots of data.

this series only address the 1st set of problems.

What they do:
- res_compatible parameter was not used anywhere, just add that information to 
res_postcopy.
- Remove QEMUFILE parameter from save_live_pending
- Split save_live_pending into
  * save_pending_estimate(): the pending state size without trying too hard
  * save_pending_exact(): the real pending state size, it is called with the 
guest stopped.
- Now save_pending_* don't need the threshold parameter
- HACK a way to stop the guest before moving there.

ToDo:
- autoconverge test is broken, no real clue why, but it is possible that the 
test is wrong.

- Make an artifact to be able to send massive amount of data in the save state 
stage (probably more multifd channels).

- Be able to not having to start the guest between cheking the state pending 
size and migration_completion().

Please review.

Thanks, Juan.

Alex Bennée (4):
  tests/qtests: override "force-legacy" for gpio virtio-mmio tests
  hw/virtio: add started_vu status field to vhost-user-gpio
  hw/virtio: generalise CHR_EVENT_CLOSED handling
  include/hw: VM state takes precedence in virtio_device_should_start

Evgeny Ermakov (2):
  target/arm: Set TCGCPUOps.restore_state_to_opc for v7m
  hw/display/next-fb: Fix comment typo

Gerd Hoffmann (2):
  update seabios source from 1.16.0 to 1.16.1
  update seabios binaries to 1.16.1

Juan Quintela (9):
  multifd: Create page_size fields into both MultiFD{Recv,Send}Params
  multifd: Create page_count fields into both MultiFD{Recv,Send}Params
  migration: Export ram_transferred_ram()
  migration: Export ram_release_page()
  migration: Remove res_compatible parameter
  migration: No save_live_pending() method uses the QEMUFile parameter
  migration: Split save_live_pending() into state_pending_*
  migration: Remove unused threshold_size parameter
  migration: simplify migration_iteration_run()

Klaus Jensen (5):
  hw/nvme: fix aio cancel in format
  hw/nvme: fix aio cancel in flush
  hw/nvme: fix aio cancel in zone reset
  hw/nvme: fix aio cancel in dsm
  hw/nvme: remove copy bh scheduling

Paolo Bonzini (1):
  target/i386: allow MMX instructions with CR4.OSFXSR=0

Peter Xu (15):
  migration: Take bitmap mutex when completing ram migration
  migration: Add postcopy_preempt_active()
  migration: Cleanup xbzrle zero page cache update logic
  migration: Trivial cleanup save_page_header() on same block check
  migration: Remove RAMState.f references in compression code
  migration: Yield bitmap_mutex properly when sending/sleeping
  migration: Use atomic ops properly for page accountings
  migration: Teach PSS about host page
  migration: Introduce pss_channel
  migration: Add pss_init()
  migration: Make PageSearchStatus part of RAMState
  migration: Move last_sent_block into PageSearchStatus
  migration: Send requested page directly in rp-return thread
  migration: Remove old preempt code around state maintainance
  migration: Drop rs->f

Philippe Mathieu-Daudé (5):
  hw/display/qxl: Have qxl_log_command Return early if no log_cmd
    handler
  hw/display/qxl: Document qxl_phys2virt()
  hw/display/qxl: Pass requested buffer size to qxl_phys2virt()
  hw/display/qxl: Avoid buffer overrun in qxl_phys2virt (CVE-2022-4144)
  hw/display/qxl: Assert memory slot fits in preallocated MemoryRegion

Richard Henderson (2):
  replay: Fix declaration of replay_read_next_clock
  target/i386: Always completely initialize TranslateFault

Stefan Hajnoczi (2):
  block-backend: avoid bdrv_unregister_buf() NULL pointer deref
  Update VERSION for v7.2.0-rc3

Stefano Garzarella (1):
  vhost: enable vrings in vhost_dev_start() for vhost-user devices

Thomas Huth (2):
  tests/qtest/migration-test: Fix unlink error and memory leaks
  target/s390x/tcg: Fix and improve the SACF instruction

Xiaojuan Yang (1):
  hw/loongarch/virt: Add cfi01 pflash device

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2.38.1