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  1. 22 7月, 2009 3 次提交
    • G
      introduce on_vcpu · 452e4751
      由 Glauber Costa 提交于 
      on_vcpu is a qemu-kvm function that will make sure that a specific
piece of code will run on a requested cpu. We don't need that because
we're restricted to -smp 1 right now, but those days are likely to end soon.

So for the benefit of having qemu-kvm share more code with us, I'm
introducing our own version of on_vcpu(). Right now, we either run
a function on the current cpu, or abort the execution, because it would
mean something is seriously wrong.

As an example code, I "ported" kvm_update_guest_debug to use it,
with some slight differences from qemu-kvm.

This is probably 0.12 material
Signed-off-by: NGlauber Costa <glommer@redhat.com>
CC: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      452e4751
    • A
      Fake dirty loggin when it's not there · bd836776
      由 Alexander Graf 提交于 
      Some KVM platforms don't support dirty logging yet, like IA64 and PPC,
so in order to still have screen updates on those, we need to fake it.

This patch just tells the getter function for dirty bitmaps, that all
pages within a slot are dirty when the slot has dirty logging enabled.

That way we can implement dirty logging on those platforms sometime when
it drags down performance, but share the rest of the code with dirty
logging capable platforms.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      bd836776
    • A
      Fix warning in kvm-all.c · b80a55e6
      由 Alexander Graf 提交于 
      This fixes a warning I stumbled across while compiling qemu on PPC64.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      b80a55e6
  3. 30 6月, 2009 2 次提交
  5. 17 6月, 2009 1 次提交
    • J
      kvm: Fix IRQ injection into full queue · 8c14c173
      由 Jan Kiszka 提交于 
      User space may only inject interrupts during kvm_arch_pre_run if
ready_for_interrupt_injection is set in kvm_run. But that field is
updated on exit from KVM_RUN, so we must ensure that we enter the
kernel after potentially queuing an interrupt, otherwise we risk to
loose one - like it happens with the current code against latest
kernel modules (since kvm-86) that started to queue only a single
interrupt.

Fix the problem by reordering kvm_cpu_exec.

Credits go to Gleb Natapov for analyzing the issue in details.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      8c14c173
  7. 07 6月, 2009 1 次提交
  9. 22 5月, 2009 6 次提交
  11. 20 5月, 2009 1 次提交
  13. 09 5月, 2009 1 次提交
  15. 01 5月, 2009 2 次提交
  17. 17 4月, 2009 3 次提交
  19. 11 4月, 2009 1 次提交
  21. 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
  23. 07 3月, 2009 1 次提交
    • A
      Fix race condition on access to env->interrupt_request · be214e6c
      由 aurel32 提交于 
      env->interrupt_request is accessed as the bit level from both main code
and signal handler, making a race condition possible even on CISC CPU.
This causes freeze of QEMU under high load when running the dyntick
clock.

The patch below move the bit corresponding to CPU_INTERRUPT_EXIT in a
separate variable, declared as volatile sig_atomic_t, so it should be
work even on RISC CPU.

We may want to move the cpu_interrupt(env, CPU_INTERRUPT_EXIT) case in
its own function and get rid of CPU_INTERRUPT_EXIT. That can be done
later, I wanted to keep the patch short for easier review.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6728 c046a42c-6fe2-441c-8c8c-71466251a162
      be214e6c
  25. 06 2月, 2009 1 次提交
  27. 19 12月, 2008 1 次提交
  29. 16 12月, 2008 1 次提交
  31. 10 12月, 2008 2 次提交
  33. 05 12月, 2008 1 次提交
  35. 25 11月, 2008 1 次提交
  37. 20 11月, 2008 1 次提交
  39. 19 11月, 2008 1 次提交
  41. 18 11月, 2008 1 次提交
  43. 14 11月, 2008 1 次提交
  45. 10 11月, 2008 1 次提交
  47. 06 11月, 2008 1 次提交