Re: [Qemu-devel] [PATCH v3 00/46] ivshmem improvements (please review)

[Claudio Fontana <claudio.fontana@huawei.com>]

Hi Marc Andre',

On 15.09.2015 18:07, marcandre.lureau@redhat.com wrote:
> From: Marc-André Lureau <marcandre.lureau@redhat.com>
> 
> 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).
> 
> The first two series didn't get much feedback, and the third series is
> mostly untouched. The code is not complicated (hopefully), please
> review, thanks!! :)

I'll give it a shot.

Ciao

Claudio

> 
> Git: https://github.com/elmarco/qemu.git ivshmem branch
> 
> 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 (43):
>   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
>   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: make ivshmem_get_size() more generic
>   ivshmem: add hostmem backend
>   ivshmem: remove EventfdEntry.vector
>   ivshmem: rename MSI eventfd_table
>   ivshmem: use kvm irqfd for msi notifications
> 
>  Makefile                                |   8 +
>  configure                               |   3 +
>  contrib/ivshmem-client/ivshmem-client.c | 444 ++++++++++++++++++
>  contrib/ivshmem-client/ivshmem-client.h | 213 +++++++++
>  contrib/ivshmem-client/main.c           | 239 ++++++++++
>  contrib/ivshmem-server/ivshmem-server.c | 478 +++++++++++++++++++
>  contrib/ivshmem-server/ivshmem-server.h | 166 +++++++
>  contrib/ivshmem-server/main.c           | 263 +++++++++++
>  docs/specs/ivshmem_device_spec.txt      | 127 +++--
>  hw/misc/ivshmem.c                       | 801 ++++++++++++++++++++++----------
>  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                    | 486 +++++++++++++++++++
>  tests/libqtest.c                        |  37 +-
>  tests/libqtest.h                        |   2 +
>  20 files changed, 3050 insertions(+), 296 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
>