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  1. 17 6月, 2009 2 次提交
  3. 16 6月, 2009 1 次提交
  5. 04 6月, 2009 1 次提交
    • N
      fix gdbstub support for multiple threads in usermode, v3 · 1e9fa730
      由 Nathan Froyd 提交于 
      When debugging multi-threaded programs, QEMU's gdb stub would report the
correct number of threads (the qfThreadInfo and qsThreadInfo packets).
However, the stub was unable to actually switch between threads (the T
packet), since it would report every thread except the first as being
dead.  Furthermore, the stub relied upon cpu_index as a reliable means
of assigning IDs to the threads.  This was a bad idea; if you have this
sequence of events:

initial thread created
new thread #1
new thread #2
thread #1 exits
new thread #3

thread #3 will have the same cpu_index as thread #1, which would confuse
GDB.  (This problem is partly due to the remote protocol not having a
good way to send thread creation/destruction events.)

We fix this by using the host thread ID for the identifier passed to GDB
when debugging a multi-threaded userspace program.  The thread ID might
wrap, but the same sort of problems with wrapping thread IDs would come
up with debugging programs natively, so this doesn't represent a
problem.
Signed-off-by: NNathan Froyd <froydnj@codesourcery.com>
      1e9fa730
  7. 22 5月, 2009 2 次提交
  9. 04 5月, 2009 1 次提交
    • S
      Fix typos in comments in exec.c · ccbb4d44
      由 Stuart Brady 提交于 
      This patch fixes several typos in comments in exec.c:

            longet -> longer
       recommanded -> recommended
        ajustments -> adjustments
   inconsistancies -> inconsistencies
           phsical -> physical
       positionned -> positioned
       succesfully -> successfully
      regon_offset -> region_offset

and also:

      start_region -> start_addr
Signed-off-by: NStuart Brady <stuart.brady@gmail.com>
      ccbb4d44
  11. 01 5月, 2009 2 次提交
  13. 25 4月, 2009 1 次提交
  15. 22 4月, 2009 1 次提交
  17. 19 4月, 2009 1 次提交
  19. 12 4月, 2009 1 次提交
  21. 11 4月, 2009 1 次提交
  23. 10 4月, 2009 1 次提交
  25. 08 4月, 2009 1 次提交
  27. 06 4月, 2009 1 次提交
  29. 29 3月, 2009 1 次提交
  31. 17 3月, 2009 1 次提交
  33. 13 3月, 2009 1 次提交
    • A
      Guest debugging support for KVM (Jan Kiszka) · e22a25c9
      由 aliguori 提交于 
      This is a backport of the guest debugging support for the KVM
accelerator that is now part of the KVM tree. It implements the reworked
KVM kernel API for guest debugging (KVM_CAP_SET_GUEST_DEBUG) which is
not yet part of any mainline kernel but will probably be 2.6.30 stuff.
So far supported is x86, but PPC is expected to catch up soon.

Core features are:
 - unlimited soft-breakpoints via code patching
 - hardware-assisted x86 breakpoints and watchpoints

Changes in this version:
 - use generic hook cpu_synchronize_state to transfer registers between
   user space and kvm
 - push kvm_sw_breakpoints into KVMState
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6825 c046a42c-6fe2-441c-8c8c-71466251a162
      e22a25c9
  35. 08 3月, 2009 3 次提交
  37. 07 3月, 2009 3 次提交
  39. 23 2月, 2009 1 次提交
  41. 19 2月, 2009 1 次提交
    • A
      Fix cpu_physical_memory_rw() for 64-bit I/O accesses · 6c2934db
      由 aurel32 提交于 
      KVM uses cpu_physical_memory_rw() to access the I/O devices. When a
read or write with a length of 8-byte is requested, it is split into 2
4-byte accesses.

This has been broken in revision 5849. After this revision, only the
first 4 bytes are actually read/write to the device, as the target
address is changed, so on the next iteration of the loop the next 4
bytes are actually read/written elsewhere (in the RAM for the graphic
card).

This patch fixes screen corruption (and most probably data corruption)
with FreeBSD/amd64. Bug #2556746 in KVM bugzilla.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6628 c046a42c-6fe2-441c-8c8c-71466251a162
      6c2934db
  43. 11 2月, 2009 1 次提交
  45. 06 2月, 2009 1 次提交
  47. 27 1月, 2009 1 次提交
  49. 23 1月, 2009 2 次提交
  51. 16 1月, 2009 3 次提交
  53. 05 1月, 2009 1 次提交
  55. 29 12月, 2008 1 次提交
  57. 10 12月, 2008 1 次提交
    • A
      KVM: Coalesced MMIO support · f65ed4c1
      由 aliguori 提交于 
      MMIO exits are more expensive in KVM or Xen than in QEMU because they 
involve, at least, privilege transitions.  However, MMIO write 
operations can be effectively batched if those writes do not have side 
effects.

Good examples of this include VGA pixel operations when in a planar 
mode.  As it turns out, we can get a nice boost in other areas too.  
Laurent mentioned a 9.7% performance boost in iperf with the coalesced 
MMIO changes for the e1000 when he originally posted this work for KVM.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5961 c046a42c-6fe2-441c-8c8c-71466251a162
      f65ed4c1
  59. 09 12月, 2008 1 次提交