[Qemu-devel] [PATCH v4 00/47] ivshmem improvements

[marcandre . lureau]

From: Marc-André Lureau <address@hidden>

Hi,

This series is mostly about adding the client/server code from David
Marchand, code cleanups, and little improvements and fixes for
ivshmem. Finally there is some ivshmem tests (they work fine without
kvm btw).

Git: https://github.com/elmarco/qemu.git ivshmem branch

v3->v4:
- remove an extra ;
- improve msix debug message
- improve some commit summary
- improve some code comment
- add a message to server to inform hugepages or shm usage
- replace function macros in test with regular functions
- replace parse_mem_size() patch with strtosz()
- add a patch to change the protocol to i64 le

v2->v3:
- add old migration fallback code
- split a few patches
- improve some commit messages
- drop a commit checking eventfd read value

v1->v2:
- add support for hugepage shm (suggested by Andrew Jones)
- add irqfd for msix notification

David Marchand (3):
  contrib: add ivshmem client and server
  docs: update ivshmem device spec
  ivshmem: add check on protocol version in QEMU

Marc-André Lureau (44):
  char: add qemu_chr_free()
  msix: add VMSTATE_MSIX_TEST
  ivhsmem: read do not accept more than sizeof(long)
  ivshmem: fix number of bytes to push to fifo
  ivshmem: factor out the incoming fifo handling
  ivshmem: remove unnecessary dup()
  ivshmem: remove superflous ivshmem_attr field
  ivshmem: remove useless doorbell field
  ivshmem: more qdev conversion
  ivshmem: remove last exit(1)
  ivshmem: limit maximum number of peers to G_MAXUINT16
  ivshmem: simplify around increase_dynamic_storage()
  ivshmem: allocate eventfds in resize_peers()
  ivshmem: remove useless ivshmem_update_irq() val argument
  ivshmem: initialize max_peer to -1
  ivshmem: remove max_peer field
  ivshmem: improve debug messages
  ivshmem: improve error handling
  ivshmem: print error on invalid peer id
  ivshmem: simplify a bit the code
  ivshmem: use common return
  ivshmem: use common is_power_of_2()
  ivshmem: migrate with VMStateDescription
  ivshmem: shmfd can be 0
  ivshmem: check shm isn't already initialized
  ivshmem: add device description
  ivshmem: fix pci_ivshmem_exit()
  ivshmem: replace 'guest' for 'peer' appropriately
  ivshmem: error on too many eventfd received
  ivshmem: reset mask on device reset
  ivshmem-client: check the number of vectors
  ivshmem-server: use a uint16 for client ID
  ivshmem-server: fix hugetlbfs support
  contrib: remove unnecessary strdup()
  msix: implement pba write (but read-only)
  qtest: add qtest_add_abrt_handler()
  tests: add ivshmem qtest
  ivshmem: do not keep shm_fd open
  ivshmem: use strtosz()
  ivshmem: add hostmem backend
  ivshmem: remove EventfdEntry.vector
  ivshmem: rename MSI eventfd_table
  ivshmem: use kvm irqfd for msi notifications
  ivshmem: use little-endian int64_t for the protocol

 Makefile                                |   8 +
 configure                               |   3 +
 contrib/ivshmem-client/ivshmem-client.c | 445 +++++++++++++++++
 contrib/ivshmem-client/ivshmem-client.h | 213 ++++++++
 contrib/ivshmem-client/main.c           | 239 +++++++++
 contrib/ivshmem-server/ivshmem-server.c | 480 ++++++++++++++++++
 contrib/ivshmem-server/ivshmem-server.h | 166 +++++++
 contrib/ivshmem-server/main.c           | 263 ++++++++++
 docs/specs/ivshmem_device_spec.txt      | 127 +++--
 hw/misc/ivshmem.c                       | 827 ++++++++++++++++++++++----------
 hw/pci/msix.c                           |   6 +
 include/hw/misc/ivshmem.h               |  25 +
 include/hw/pci/msix.h                   |  16 +-
 include/sysemu/char.h                   |  10 +-
 qemu-char.c                             |   9 +-
 qemu-doc.texi                           |  10 +-
 tests/Makefile                          |   3 +
 tests/ivshmem-test.c                    | 493 +++++++++++++++++++
 tests/libqtest.c                        |  37 +-
 tests/libqtest.h                        |   2 +
 20 files changed, 3066 insertions(+), 316 deletions(-)
 create mode 100644 contrib/ivshmem-client/ivshmem-client.c
 create mode 100644 contrib/ivshmem-client/ivshmem-client.h
 create mode 100644 contrib/ivshmem-client/main.c
 create mode 100644 contrib/ivshmem-server/ivshmem-server.c
 create mode 100644 contrib/ivshmem-server/ivshmem-server.h
 create mode 100644 contrib/ivshmem-server/main.c
 create mode 100644 include/hw/misc/ivshmem.h
 create mode 100644 tests/ivshmem-test.c

-- 
2.4.3