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7 Commits

Author SHA1 Message Date
Peter Maydell 95a9457fd4 Header cleanup patches for 2019-08-13
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Merge remote-tracking branch 'remotes/armbru/tags/pull-include-2019-08-13-v2' into staging

Header cleanup patches for 2019-08-13

# gpg: Signature made Fri 16 Aug 2019 12:39:12 BST
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-include-2019-08-13-v2: (29 commits)
  sysemu: Split sysemu/runstate.h off sysemu/sysemu.h
  sysemu: Move the VMChangeStateEntry typedef to qemu/typedefs.h
  Include sysemu/sysemu.h a lot less
  Clean up inclusion of sysemu/sysemu.h
  numa: Move remaining NUMA declarations from sysemu.h to numa.h
  Include sysemu/hostmem.h less
  numa: Don't include hw/boards.h into sysemu/numa.h
  Include hw/boards.h a bit less
  Include hw/qdev-properties.h less
  Include qemu/main-loop.h less
  Include qemu/queue.h slightly less
  Include hw/hw.h exactly where needed
  Include qom/object.h slightly less
  Include exec/memory.h slightly less
  Include migration/vmstate.h less
  migration: Move the VMStateDescription typedef to typedefs.h
  Clean up inclusion of exec/cpu-common.h
  Include hw/irq.h a lot less
  typedefs: Separate incomplete types and function types
  ide: Include hw/ide/internal a bit less outside hw/ide/
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-08-16 14:53:43 +01:00
Markus Armbruster 6a0acfff99 Clean up inclusion of exec/cpu-common.h
migration/qemu-file.h neglects to include it even though it needs
ram_addr_t.  Fix that.  Drop a few superfluous inclusions elsewhere.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-14-armbru@redhat.com>
2019-08-16 13:31:52 +02:00
Yury Kotov 3d661c8ab1 migration: Add error_desc for file channel errors
Currently, there is no information about error if outgoing migration was failed
because of file channel errors.
Example (QMP session):
-> { "execute": "migrate", "arguments": { "uri": "exec:head -c 1" }}
<- { "return": {} }
...
-> { "execute": "query-migrate" }
<- { "return": { "status": "failed" }} // There is not error's description

And even in the QEMU's output there is nothing.

This patch
1) Adds errp for the most of QEMUFileOps
2) Adds qemu_file_get_error_obj/qemu_file_set_error_obj
3) And finally using of qemu_file_get_error_obj in migration.c

And now, the status for the mentioned fail will be:
-> { "execute": "query-migrate" }
<- { "return": { "status": "failed",
                 "error-desc": "Unable to write to command: Broken pipe" }}

Signed-off-by: Yury Kotov <yury-kotov@yandex-team.ru>
Message-Id: <20190422103420.15686-1-yury-kotov@yandex-team.ru>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-08-14 17:33:14 +01:00
Lidong Chen 5d5f4d8436 migration: invoke qio_channel_yield only when qemu_in_coroutine()
when qio_channel_read return QIO_CHANNEL_ERR_BLOCK, the source qemu crash.

The backtrace is:
    (gdb) bt
    #0  0x00007fb20aba91d7 in raise () from /lib64/libc.so.6
    #1  0x00007fb20abaa8c8 in abort () from /lib64/libc.so.6
    #2  0x00007fb20aba2146 in __assert_fail_base () from /lib64/libc.so.6
    #3  0x00007fb20aba21f2 in __assert_fail () from /lib64/libc.so.6
    #4  0x00000000008dba2d in qio_channel_yield (ioc=0x22f9e20, condition=G_IO_IN) at io/channel.c:460
    #5  0x00000000007a870b in channel_get_buffer (opaque=0x22f9e20, buf=0x3d54038 "", pos=0, size=32768)
        at migration/qemu-file-channel.c:83
    #6  0x00000000007a70f6 in qemu_fill_buffer (f=0x3d54000) at migration/qemu-file.c:299
    #7  0x00000000007a79d0 in qemu_peek_byte (f=0x3d54000, offset=0) at migration/qemu-file.c:562
    #8  0x00000000007a7a22 in qemu_get_byte (f=0x3d54000) at migration/qemu-file.c:575
    #9  0x00000000007a7c46 in qemu_get_be16 (f=0x3d54000) at migration/qemu-file.c:647
    #10 0x0000000000796db7 in source_return_path_thread (opaque=0x2242280) at migration/migration.c:1794
    #11 0x00000000009428fa in qemu_thread_start (args=0x3e58420) at util/qemu-thread-posix.c:504
    #12 0x00007fb20af3ddc5 in start_thread () from /lib64/libpthread.so.0
    #13 0x00007fb20ac6b74d in clone () from /lib64/libc.so.6

This patch fixed by invoke qio_channel_yield only when qemu_in_coroutine().

Signed-off-by: Lidong Chen <lidongchen@tencent.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2018-08-22 12:13:59 +02:00
Juan Quintela 08a0aee15c migration: Split qemu-file.h
Split the file into public and internal interfaces.  I have to rename
the external one because we can't have two include files with the same
name in the same directory.  Build system gets confused.  The only
exported functions are the ones that handle basic types.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:22 +02:00
Juan Quintela 40014d81f2 migration: Export qemu-file-channel.c functions in its own file
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-18 19:20:50 +02:00
Daniel P. Berrange a9cfeb33bb migration: introduce a new QEMUFile impl based on QIOChannel
Introduce a new QEMUFile implementation that is based on
the QIOChannel objects. This impl is different from existing
impls in that there is no file descriptor that can be made
available, as some channels may be based on higher level
protocols such as TLS.

Although the QIOChannel based implementation can trivially
provide a bi-directional stream, initially we have separate
functions for opening input & output directions to fit with
the expectation of the current QEMUFile interface.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1461751518-12128-9-git-send-email-berrange@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-05-26 11:31:24 +05:30