Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Gleb Natapov:
 "The highlights of the release are nested EPT and pv-ticketlocks
  support (hypervisor part, guest part, which is most of the code, goes
  through tip tree).  Apart of that there are many fixes for all arches"

Fix up semantic conflicts as discussed in the pull request thread..

* 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (88 commits)
  ARM: KVM: Add newlines to panic strings
  ARM: KVM: Work around older compiler bug
  ARM: KVM: Simplify tracepoint text
  ARM: KVM: Fix kvm_set_pte assignment
  ARM: KVM: vgic: Bump VGIC_NR_IRQS to 256
  ARM: KVM: Bugfix: vgic_bytemap_get_reg per cpu regs
  ARM: KVM: vgic: fix GICD_ICFGRn access
  ARM: KVM: vgic: simplify vgic_get_target_reg
  KVM: MMU: remove unused parameter
  KVM: PPC: Book3S PR: Rework kvmppc_mmu_book3s_64_xlate()
  KVM: PPC: Book3S PR: Make instruction fetch fallback work for system calls
  KVM: PPC: Book3S PR: Don't corrupt guest state when kernel uses VMX
  KVM: x86: update masterclock when kvmclock_offset is calculated (v2)
  KVM: PPC: Book3S: Fix compile error in XICS emulation
  KVM: PPC: Book3S PR: return appropriate error when allocation fails
  arch: powerpc: kvm: add signed type cast for comparation
  KVM: x86: add comments where MMIO does not return to the emulator
  KVM: vmx: count exits to userspace during invalid guest emulation
  KVM: rename __kvm_io_bus_sort_cmp to kvm_io_bus_cmp
  kvm: optimize away THP checks in kvm_is_mmio_pfn()
  ...

5 files changed, 16 insertions, 10 deletions

diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 343744e4809c..7e2d15837b02 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -26,7 +26,7 @@
 #include <linux/types.h>
 #include <linux/irqchip/arm-gic.h>
 
-#define VGIC_NR_IRQS            128
+#define VGIC_NR_IRQS            256
 #define VGIC_NR_SGIS            16
 #define VGIC_NR_PPIS            16
 #define VGIC_NR_PRIVATE_IRQS    (VGIC_NR_SGIS + VGIC_NR_PPIS)
diff --git a/include/linux/dma-contiguous.h b/include/linux/dma-contiguous.h
index 01b5c84be828..00141d3325fe 100644
--- a/include/linux/dma-contiguous.h
+++ b/include/linux/dma-contiguous.h
@@ -57,7 +57,7 @@ struct cma;
 struct page;
 struct device;
 
-#ifdef CONFIG_CMA
+#ifdef CONFIG_DMA_CMA
 
 /*
  * There is always at least global CMA area and a few optional device
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a63d83ebd151..ca645a01d37a 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -85,6 +85,12 @@ static inline bool is_noslot_pfn(pfn_t pfn)
         return pfn == KVM_PFN_NOSLOT;
 }
 
+/*
+ * architectures with KVM_HVA_ERR_BAD other than PAGE_OFFSET (e.g. s390)
+ * provide own defines and kvm_is_error_hva
+ */
+#ifndef KVM_HVA_ERR_BAD
+
 #define KVM_HVA_ERR_BAD         (PAGE_OFFSET)
 #define KVM_HVA_ERR_RO_BAD      (PAGE_OFFSET + PAGE_SIZE)
 
@@ -93,6 +99,8 @@ static inline bool kvm_is_error_hva(unsigned long addr)
         return addr >= PAGE_OFFSET;
 }
 
+#endif
+
 #define KVM_ERR_PTR_BAD_PAGE    (ERR_PTR(-ENOENT))
 
 static inline bool is_error_page(struct page *page)
@@ -160,8 +168,12 @@ enum kvm_bus {
 
 int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
                      int len, const void *val);
+int kvm_io_bus_write_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
+                            int len, const void *val, long cookie);
 int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len,
                     void *val);
+int kvm_io_bus_read_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
+                           int len, void *val, long cookie);
 int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
                             int len, struct kvm_io_device *dev);
 int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
@@ -499,6 +511,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 void kvm_arch_free_memslot(struct kvm_memory_slot *free,
                            struct kvm_memory_slot *dont);
 int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages);
+void kvm_arch_memslots_updated(struct kvm *kvm);
 int kvm_arch_prepare_memory_region(struct kvm *kvm,
                                 struct kvm_memory_slot *memslot,
                                 struct kvm_userspace_memory_region *mem,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f79ced719435..ce1e1c0aaa33 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -107,14 +107,6 @@ extern unsigned long this_cpu_load(void);
 extern void calc_global_load(unsigned long ticks);
 extern void update_cpu_load_nohz(void);
 
-/* Notifier for when a task gets migrated to a new CPU */
-struct task_migration_notifier {
-        struct task_struct *task;
-        int from_cpu;
-        int to_cpu;
-};
-extern void register_task_migration_notifier(struct notifier_block *n);
-
 extern unsigned long get_parent_ip(unsigned long addr);
 
 extern void dump_cpu_task(int cpu);
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index acccd08be6c7..99c25338ede8 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -667,6 +667,7 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_PPC_RTAS 91
 #define KVM_CAP_IRQ_XICS 92
 #define KVM_CAP_ARM_EL1_32BIT 93
+#define KVM_CAP_SPAPR_MULTITCE 94
 
 #ifdef KVM_CAP_IRQ_ROUTING