[Qemu-devel] [PATCH 0/3] Add 'inline-fd:' protocol for migration

[Yury Kotov]

Hi,

I've added 'inline-fd:' proto to simplify migration to/from fd.
I thought about modifying the existing 'fd:' proto but I'm not sure it's a
good idea to change it's contract.

Existing 'fd:' proto works with previously added fd by getfd or add-fd commands.
If client doesn't want to work with this fd before or after migration then it's
easier to send an fd with the migrate-* command. Also, client shouldn't maintain
this fd.

Usage:
{ 'execute': 'migrate', 'arguments': { 'uri': 'inline-fd:' } }
{ 'execute': 'migrate-incoming', 'arguments': { 'uri': 'inline-fd:' } }

Regards,
Yury

Yury Kotov (3):
  monitor: Add monitor_recv_fd function to work with sent fds
  migration: Add inline-fd protocol
  migration-test: Add a test for inline_fd protocol

 include/monitor/monitor.h          |   1 +
 migration/Makefile.objs            |   2 +-
 migration/inline-fd.c              |  89 ++++++++++++++++++++++
 migration/inline-fd.h              |  22 ++++++
 migration/migration.c              |  15 ++++
 migration/trace-events             |   4 +
 monitor.c                          |  15 +++-
 tests/libqtest.c                   |  83 +++++++++++++++++++-
 tests/libqtest.h                   |  51 ++++++++++++-
 tests/migration-test.c             | 117 ++++++++++++++++++++++++++---
 tests/qemu-seccomp                 | Bin 0 -> 1266168 bytes
 tests/test-query-device-blockstats | Bin 0 -> 1272608 bytes
 12 files changed, 379 insertions(+), 20 deletions(-)
 create mode 100644 migration/inline-fd.c
 create mode 100644 migration/inline-fd.h
 create mode 100755 tests/qemu-seccomp
 create mode 100755 tests/test-query-device-blockstats

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2.21.0