Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (80 commits)
  KVM: Use CPU_DYING for disabling virtualization
  KVM: Tune hotplug/suspend IPIs
  KVM: Keep track of which cpus have virtualization enabled
  SMP: Allow smp_call_function_single() to current cpu
  i386: Allow smp_call_function_single() to current cpu
  x86_64: Allow smp_call_function_single() to current cpu
  HOTPLUG: Adapt thermal throttle to CPU_DYING
  HOTPLUG: Adapt cpuset hotplug callback to CPU_DYING
  HOTPLUG: Add CPU_DYING notifier
  KVM: Clean up #includes
  KVM: Remove kvmfs in favor of the anonymous inodes source
  KVM: SVM: Reliably detect if SVM was disabled by BIOS
  KVM: VMX: Remove unnecessary code in vmx_tlb_flush()
  KVM: MMU: Fix Wrong tlb flush order
  KVM: VMX: Reinitialize the real-mode tss when entering real mode
  KVM: Avoid useless memory write when possible
  KVM: Fix x86 emulator writeback
  KVM: Add support for in-kernel pio handlers
  KVM: VMX: Fix interrupt checking on lightweight exit
  KVM: Adds support for in-kernel mmio handlers
  ...

3 files changed, 9 insertions, 2 deletions

diff --git a/include/linux/magic.h b/include/linux/magic.h
index 9d713c03e3da..36cc20dfd142 100644
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -13,7 +13,6 @@
 #define HPFS_SUPER_MAGIC        0xf995e849
 #define ISOFS_SUPER_MAGIC       0x9660
 #define JFFS2_SUPER_MAGIC       0x72b6
-#define KVMFS_SUPER_MAGIC       0x19700426
 #define ANON_INODE_FS_MAGIC     0x09041934
 
 #define MINIX_SUPER_MAGIC       0x137F          /* original minix fs */
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index 9431101bf876..576f2bb34cc8 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -196,6 +196,8 @@ extern int __srcu_notifier_call_chain(struct srcu_notifier_head *nh,
 #define CPU_DEAD                0x0007 /* CPU (unsigned)v dead */
 #define CPU_LOCK_ACQUIRE        0x0008 /* Acquire all hotcpu locks */
 #define CPU_LOCK_RELEASE        0x0009 /* Release all hotcpu locks */
+#define CPU_DYING               0x000A /* CPU (unsigned)v not running any task,
+                                        * not handling interrupts, soon dead */
 
 /* Used for CPU hotplug events occuring while tasks are frozen due to a suspend
  * operation in progress
@@ -208,6 +210,7 @@ extern int __srcu_notifier_call_chain(struct srcu_notifier_head *nh,
 #define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)
 #define CPU_DOWN_FAILED_FROZEN  (CPU_DOWN_FAILED | CPU_TASKS_FROZEN)
 #define CPU_DEAD_FROZEN         (CPU_DEAD | CPU_TASKS_FROZEN)
+#define CPU_DYING_FROZEN        (CPU_DYING | CPU_TASKS_FROZEN)
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_NOTIFIER_H */
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 96ac21f8dd73..8039daced688 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -7,6 +7,7 @@
  */
 
 #include <linux/errno.h>
+#include <asm/system.h>
 
 extern void cpu_idle(void);
 
@@ -102,7 +103,11 @@ static inline void smp_send_reschedule(int cpu) { }
 static inline int smp_call_function_single(int cpuid, void (*func) (void *info),
                                            void *info, int retry, int wait)
 {
-        return -EBUSY;
+        WARN_ON(cpuid != 0);
+        local_irq_disable();
+        func(info);
+        local_irq_enable();
+        return 0;
 }
 
 #endif /* !SMP */