preserve-emulation/xemu
1
0 Fork 0
mirror of https://github.com/xemu-project/xemu.git synced 2026-11-12 17:18:58 +01:00
Code Issues Packages Projects Releases Wiki Activity
112,225 Commits 16 Branches 305 Tags
2ee80bce4f7cf2ef78f996ea608755d4e97c94de
Commit Graph
112225 Commits
This Branch
This Branch
All Branches
Author SHA1 Message Date
Paolo Bonzini fbcc3e5004 qemu-thread: optimize QemuLockCnt with futexes on Linux 
This is complex, but I think it is reasonably documented in the source.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170112180800.21085-5-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 2017-01-16 13:25:18 +00:00
Paolo Bonzini d7c99a1282 aio: make ctx->list_lock a QemuLockCnt, subsuming ctx->walking_bh 
This will make it possible to walk the list of bottom halves without
holding the AioContext lock---and in turn to call bottom half
handlers without holding the lock.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20170112180800.21085-4-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 2017-01-16 13:25:17 +00:00
Paolo Bonzini 51dee5e465 qemu-thread: introduce QemuLockCnt 
A QemuLockCnt comprises a counter and a mutex, with primitives
to increment and decrement the counter, and to take and release the
mutex.  It can be used to do lock-free visits to a data structure
whenever mutexes would be too heavy-weight and the critical section
is too long for RCU.

This could be implemented simply by protecting the counter with the
mutex, but QemuLockCnt is harder to misuse and more efficient.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170112180800.21085-3-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 2017-01-16 13:25:17 +00:00
Paolo Bonzini cf2c02c8ea aio: rename bh_lock to list_lock 
This will be used for AioHandlers too.  There is going to be little
or no contention, so it is better to reuse the same lock.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20170112180800.21085-2-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 2017-01-16 13:25:17 +00:00
Paolo Bonzini 8f90b5e91d block: get rid of bdrv_io_unplugged_begin/end 
bdrv_io_plug and bdrv_io_unplug are only called (via their
BlockBackend equivalents) after starting asynchronous I/O.
bdrv_drain is not going to be called while they are running,
because---even if a coroutine runs for some reason---it will
only drain in the next iteration of the event loop through
bdrv_co_yield_to_drain.

So this mechanism is unnecessary, get rid of it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20161129113334.605-1-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 2017-01-16 13:25:17 +00:00
Peter Maydell 2ccede18bd Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-2.9-pull-request' into staging 
# gpg: Signature made Sat 14 Jan 2017 09:06:31 GMT
# gpg:                using RSA key 0xF30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-2.9-pull-request:
  target-m68k: increment/decrement with SP
  target-m68k: CAS doesn't need aligned access
  target-m68k: manage pre-dec et post-inc in CAS
  target-m68k: fix gen_flush_flags()
  target-m68k: fix bit operation with immediate value
  m68k: Remove PCI and USB from config file
  target-m68k: Implement bfffo
  target-m68k: Implement bitfield ops for memory
  target-m68k: Implement bitfield ops for registers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2017-01-16 12:41:35 +00:00
Peter Maydell 02f50ca0de Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20170113' into staging 
Fixes and more queued patches

# gpg: Signature made Fri 13 Jan 2017 20:00:53 GMT
# gpg:                using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC  16A4 AD12 70CC 4DD0 279B

* remotes/rth/tags/pull-tcg-20170113:
  tcg/aarch64: Fix tcg_out_movi
  tcg/aarch64: Fix addsub2 for 0+C
  target/arm: Fix ubfx et al for aarch64
  tcg/s390: Fix merge error with facilities

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2017-01-16 11:17:38 +00:00
Marc-André Lureau 56e8bdd46a build-sys: add qapi doc generation targets 
Generate and install the man, txt and html versions of QAPI
documentation (generate and install qemu-doc.txt too).

Add it also to optional pdf/info targets.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170113144135.5150-22-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 10:11:43 +01:00
Marc-André Lureau f8bab10b4c build-sys: add txt documentation rules 
Build plain text documentation, and install it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170113144135.5150-21-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 10:11:43 +01:00
Marc-André Lureau 76480423a8 build-sys: use a generic TEXI2MAN rule 
The recipe for making a man page from .texi is duplicated several
times over.  Capture it in suitable pattern rules instead.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170113144135.5150-20-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 10:11:43 +01:00
Marc-André Lureau bd3f5706d1 build-sys: remove dvi doc generation 
There is no clear reason to have rules to generate dvi format
documentation, pdf is generally better supported nowadays.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170113144135.5150-19-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 10:11:43 +01:00
Marc-André Lureau e9ee06bdf0 build-sys: use --no-split for info 
Splitting the info files doesn't bring much benefits these days.
This fixes also untracked generated info files from git ignore.

Let's use MAKEINFOFLAGS for common flags, --number-sections is already
the default anyway, so adding it doesn't change the info output.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170113144135.5150-18-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 10:11:43 +01:00
Marc-André Lureau c051a4c202 docs: add qemu logo to pdf 
Add a logo to texi2pdf output. Other formats (info/html) are left as
future improvements.

The PDF (needed by texi2pdf for vectorized images) was generated from
pc-bios/qemu_logo.svg like this:

inkscape --export-pdf=docs/qemu_logo.pdf pc-bios/qemu_logo.svg

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170113144135.5150-17-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 10:11:43 +01:00
Marc-André Lureau 3313b6124b qapi: add qapi2texi script 
As the name suggests, the qapi2texi script converts JSON QAPI
description into a texi file suitable for different target
formats (info/man/txt/pdf/html...).

It parses the following kind of blocks:

Free-form:

  ##
  # = Section
  # == Subsection
  #
  # Some text foo with *emphasis*
  # 1. with a list
  # 2. like that
  #
  # And some code:
  # | $ echo foo
  # | -> do this
  # | <- get that
  #
  ##

Symbol description:

  ##
  # @symbol:
  #
  # Symbol body ditto ergo sum. Foo bar
  # baz ding.
  #
  # @param1: the frob to frobnicate
  # @param2: #optional how hard to frobnicate
  #
  # Returns: the frobnicated frob.
  #          If frob isn't frobnicatable, GenericError.
  #
  # Since: version
  # Notes: notes, comments can have
  #        - itemized list
  #        - like this
  #
  # Example:
  #
  # -> { "execute": "quit" }
  # <- { "return": {} }
  #
  ##

That's roughly following the following EBNF grammar:

api_comment = "##\n" comment "##\n"
comment = freeform_comment | symbol_comment
freeform_comment = { "# " text "\n" | "#\n" }
symbol_comment = "# @" name ":\n" { member | tag_section | freeform_comment }
member = "# @" name ':' [ text ] "\n" freeform_comment
tag_section = "# " ( "Returns:", "Since:", "Note:", "Notes:", "Example:", "Examples:" ) [ text ]  "\n" freeform_comment
text = free text with markup

Note that the grammar is ambiguous: a line "# @foo:\n" can be parsed
both as freeform_comment and as symbol_comment.  The actual parser
recognizes symbol_comment.

See docs/qapi-code-gen.txt for more details.

Deficiencies and limitations:
- the generated QMP documentation includes internal types
- union type support is lacking
- type information is lacking in generated documentation
- doc comment error message positions are imprecise, they point
  to the beginning of the comment.
- a few minor issues, all marked TODO/FIXME in the code

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170113144135.5150-16-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[test-qapi.py tweaked to avoid trailing empty lines in .out]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 10:10:35 +01:00
Marc-André Lureau 231aaf3a82 qmp-events: move 'MIGRATION_PASS' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:50 +01:00
Marc-André Lureau a102a4acad qmp-events: move 'DUMP_COMPLETED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:50 +01:00
Marc-André Lureau e602f0b4e7 qmp-events: move 'MEM_UNPLUG_ERROR' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:50 +01:00
Marc-André Lureau 14df1ea168 qmp-events: move 'VSERPORT_CHANGE' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:50 +01:00
Marc-André Lureau 2ee7fea7ce qmp-events: move 'QUORUM_REPORT_BAD' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:50 +01:00
Marc-André Lureau 9dcbe9a7e8 qmp-events: move 'QUORUM_FAILURE' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:50 +01:00
Marc-André Lureau 449dbec15a qmp-events: move 'GUEST_PANICKED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau a030dc0029 qmp-events: move 'BALLOON_CHANGE' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 622b3a6a51 qmp-events: move 'ACPI_DEVICE_OST' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau bce911ce26 qmp-events: move 'MIGRATION' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau e6bcb080f9 qmp-events: move 'SPICE_MIGRATE_COMPLETED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 93ab0fc3c3 qmp-events: move 'SPICE_DISCONNECTED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau da08e2a5a2 qmp-events: move 'SPICE_INITIALIZED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 5db6670347 qmp-events: move 'SPICE_CONNECTED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 659789ba36 qmp-events: move 'VNC_DISCONNECTED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 99ab2471a4 qmp-events: move 'VNC_INITIALIZED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau f46052fd13 qmp-events: move 'VNC_CONNECTED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 5dbdcf4324 qmp-events: move 'NIC_RX_FILTER_CHANGED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau cdc94a1b3e qmp-events: move 'DEVICE_DELETED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 9ba5cec9dd qmp-events: move 'WATCHDOG' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 73c41bfd31 qmp-events: move 'RTC_CHANGE' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau aa496f9812 qmp-events: move 'WAKEUP' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 4de62c38a5 qmp-events: move 'SUSPEND_DISK' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau 6f3cc5406b qmp-events: move 'SUSPEND' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:49 +01:00
Marc-André Lureau a2235a0499 qmp-events: move 'RESUME' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau 138c454c0f qmp-events: move 'STOP' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau 7a2aae7a36 qmp-events: move 'RESET' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau 189d43bed6 qmp-events: move 'POWERDOWN' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau 12defe50f8 qmp-events: move 'SHUTDOWN' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau 01b7d4be5c qmp-events: move 'DEVICE_TRAY_MOVED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau 11a3dee1b9 qmp-events: move 'BLOCK_JOB_READY' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau af0e09106c qmp-events: move 'BLOCK_JOB_ERROR' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau e161df3939 qmp-events: move 'BLOCK_JOB_CANCELLED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau e21e65b212 qmp-events: move 'BLOCK_JOB_COMPLETED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau 07c9f583d5 qmp-events: move 'BLOCK_IO_ERROR' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00
Marc-André Lureau 370d4eba7d qmp-events: move 'BLOCK_IMAGE_CORRUPTED' doc to schema 
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
 2017-01-16 09:19:48 +01:00