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  1. 19 6月, 2014 7 次提交
  3. 16 6月, 2014 1 次提交
  5. 09 6月, 2014 1 次提交
    • L
      trace: Multi-backend tracing · 5b808275
      由 Lluís Vilanova 提交于 
      Adds support to compile QEMU with multiple tracing backends at the same time.

For example, you can compile QEMU with:

  $ ./configure --enable-trace-backends=ftrace,dtrace

Where 'ftrace' can be handy for having an in-flight record of events, and 'dtrace' can be later used to extract more information from the system.

This patch allows having both available without recompiling QEMU.
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      5b808275
  7. 06 6月, 2014 1 次提交
    • D
      qdev: Display warning about unused -global · 9f9260a3
      由 Don Slutz 提交于 
      This can help a user understand why -global was ignored.

For example: with "-vga cirrus"; "-global vga.vgamem_mb=16" is just
ignored when "-global cirrus-vga.vgamem_mb=16" is not.

This is currently clear when the wrong property is provided:

out/x86_64-softmmu/qemu-system-x86_64 -global cirrus-vga.vram_size_mb=16 -monitor pty -vga cirrus
char device redirected to /dev/pts/20 (label compat_monitor0)
qemu-system-x86_64: Property '.vram_size_mb' not found
Aborted (core dumped)

vs

out/x86_64-softmmu/qemu-system-x86_64 -global vga.vram_size_mb=16 -monitor pty -vga cirrus
char device redirected to /dev/pts/20 (label compat_monitor0)
VNC server running on `::1:5900'
^Cqemu: terminating on signal 2
Signed-off-by: NDon Slutz <dslutz@verizon.com>
Acked-by: NMichael S. Tsirkin <mst@redhat.com>
      9f9260a3
  9. 28 5月, 2014 3 次提交
  11. 24 5月, 2014 1 次提交
  13. 10 5月, 2014 1 次提交
    • K
      vl.c: remove init_clocks call from main · 02ce232c
      由 Kirill Batuzov 提交于 
      Clocks are initialized in qemu_init_main_loop. They are not needed before it.
Initializing them twice is not only unnecessary but is harmful: it results in
memory leak and potentially can lead to a situation where different parts of
QEMU use different sets of timers.

To avoid it remove init_clocks call from main and add an assertion to
qemu_clock_init that corresponding clock has not been initialized yet.
Signed-off-by: NKirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      02ce232c
  15. 06 5月, 2014 5 次提交
  17. 28 4月, 2014 3 次提交
  19. 27 4月, 2014 2 次提交
  21. 18 4月, 2014 1 次提交
  23. 27 3月, 2014 1 次提交
  25. 25 3月, 2014 1 次提交
    • S
      osdep: initialize glib threads in all QEMU tools · ae2990c2
      由 Stefan Hajnoczi 提交于 
      glib versions prior to 2.31.0 require an explicit g_thread_init() call
to enable multi-threading.

Failure to initialize threading causes glib to take single-threaded code
paths without synchronization.  For example, the g_slice allocator will
crash due to race conditions.

Fix this for all QEMU tool programs (qemu-nbd, qemu-io, qemu-img) by
moving the g_thread_init() call from vl.c:main() into a new
osdep.c:thread_init() constructor function.

thread_init() has __attribute__((constructor)) and is automatically
invoked by the runtime during startup.

We can now drop the "simple" trace backend's g_thread_init() call since
thread_init() already called it.

Note that we must keep coroutine-gthread.c's g_thread_init() call which
is located in a constructor function.  There is no guarantee for
constructor function ordering so thread_init() may only be called later.
Reported-by: NMario de Chenno <mario.dechenno@unina2.it>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      ae2990c2
  27. 20 3月, 2014 3 次提交
  29. 19 3月, 2014 1 次提交
  31. 17 3月, 2014 2 次提交
  33. 14 3月, 2014 2 次提交
  35. 13 3月, 2014 2 次提交
  37. 10 3月, 2014 2 次提交