Merge branch 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm

* 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (84 commits)
  KVM: VMX: Fix comparison of guest efer with stale host value
  KVM: s390: Fix prefix register checking in arch/s390/kvm/sigp.c
  KVM: Drop user return notifier when disabling virtualization on a cpu
  KVM: VMX: Disable unrestricted guest when EPT disabled
  KVM: x86 emulator: limit instructions to 15 bytes
  KVM: s390: Make psw available on all exits, not just a subset
  KVM: x86: Add KVM_GET/SET_VCPU_EVENTS
  KVM: VMX: Report unexpected simultaneous exceptions as internal errors
  KVM: Allow internal errors reported to userspace to carry extra data
  KVM: Reorder IOCTLs in main kvm.h
  KVM: x86: Polish exception injection via KVM_SET_GUEST_DEBUG
  KVM: only clear irq_source_id if irqchip is present
  KVM: x86: disallow KVM_{SET,GET}_LAPIC without allocated in-kernel lapic
  KVM: x86: disallow multiple KVM_CREATE_IRQCHIP
  KVM: VMX: Remove vmx->msr_offset_efer
  KVM: MMU: update invlpg handler comment
  KVM: VMX: move CR3/PDPTR update to vmx_set_cr3
  KVM: remove duplicated task_switch check
  KVM: powerpc: Fix BUILD_BUG_ON condition
  KVM: VMX: Use shared msr infrastructure
  ...

Trivial conflicts due to new Kconfig options in arch/Kconfig and kernel/Makefile

diff --cc arch/Kconfig
index eef3bbb,4e312ff..d828758
--- 1/arch/Kconfig
--- 2/arch/Kconfig
+++ b/arch/Kconfig
@@@ -126,11 -133,7 +133,13 @@@ config HAVE_DMA_API_DEBU
  config HAVE_DEFAULT_NO_SPIN_MUTEXES
        bool
  
 +config HAVE_HW_BREAKPOINT
 +      bool
 +      depends on HAVE_PERF_EVENTS
 +      select ANON_INODES
 +      select PERF_EVENTS
 +
+ config HAVE_USER_RETURN_NOTIFIER
+       bool
  
  source "kernel/gcov/Kconfig"

diff --cc arch/x86/Kconfig
index 178084b,8b54096..1b2182b
--- 1/arch/x86/Kconfig
--- 2/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@@ -49,8 -49,8 +49,9 @@@ config X8
        select HAVE_KERNEL_GZIP
        select HAVE_KERNEL_BZIP2
        select HAVE_KERNEL_LZMA
 +      select HAVE_HW_BREAKPOINT
        select HAVE_ARCH_KMEMCHECK
+       select HAVE_USER_RETURN_NOTIFIER
  
  config OUTPUT_FORMAT
        string

diff --cc arch/x86/kernel/process.c
index 744508e,e51b056..5e2ba63
--- 1/arch/x86/kernel/process.c
--- 2/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@@ -9,8 -9,8 +9,9 @@@
  #include <linux/pm.h>
  #include <linux/clockchips.h>
  #include <linux/random.h>
+ #include <linux/user-return-notifier.h>
  #include <trace/events/power.h>
 +#include <linux/hw_breakpoint.h>
  #include <asm/system.h>
  #include <asm/apic.h>
  #include <asm/syscalls.h>

diff --cc arch/x86/kernel/signal.c
Simple merge

diff --cc arch/x86/kvm/x86.c
index 4fc8017,ce677b2..9d06896
--- 1/arch/x86/kvm/x86.c
--- 2/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@@ -3642,17 -3918,16 +3919,17 @@@ static int vcpu_enter_guest(struct kvm_
        }
  
        trace_kvm_entry(vcpu->vcpu_id);
-       kvm_x86_ops->run(vcpu, kvm_run);
+       kvm_x86_ops->run(vcpu);
  
 -      if (unlikely(vcpu->arch.switch_db_regs || test_thread_flag(TIF_DEBUG))) {
 -              set_debugreg(current->thread.debugreg0, 0);
 -              set_debugreg(current->thread.debugreg1, 1);
 -              set_debugreg(current->thread.debugreg2, 2);
 -              set_debugreg(current->thread.debugreg3, 3);
 -              set_debugreg(current->thread.debugreg6, 6);
 -              set_debugreg(current->thread.debugreg7, 7);
 -      }
 +      /*
 +       * If the guest has used debug registers, at least dr7
 +       * will be disabled while returning to the host.
 +       * If we don't have active breakpoints in the host, we don't
 +       * care about the messed up debug address registers. But if
 +       * we have some of them active, restore the old state.
 +       */
 +      if (hw_breakpoint_active())
 +              hw_breakpoint_restore();
  
        set_bit(KVM_REQ_KICK, &vcpu->requests);
        local_irq_enable();

diff --cc kernel/Makefile
index 9943202,6c51128..864ff75
--- 1/kernel/Makefile
--- 2/kernel/Makefile
+++ b/kernel/Makefile
@@@ -98,7 -96,7 +98,8 @@@ obj-$(CONFIG_SMP) += sched_cpupri.
  obj-$(CONFIG_SLOW_WORK) += slow-work.o
  obj-$(CONFIG_SLOW_WORK_DEBUG) += slow-work-debugfs.o
  obj-$(CONFIG_PERF_EVENTS) += perf_event.o
 +obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
+ obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
  
  ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y)
  # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is

diff --cc kernel/fork.c
Simple merge