Merge branch 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

* 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (70 commits)
  KVM: Adjust smp_call_function_mask() callers to new requirements
  KVM: MMU: Fix potential race setting upper shadow ptes on nonpae hosts
  KVM: x86 emulator: emulate clflush
  KVM: MMU: improve invalid shadow root page handling
  KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction
  KVM: Prefix some x86 low level function with kvm_, to avoid namespace issues
  KVM: check injected pic irq within valid pic irqs
  KVM: x86 emulator: Fix HLT instruction
  KVM: Apply the kernel sigmask to vcpus blocked due to being uninitialized
  KVM: VMX: Add ept_sync_context in flush_tlb
  KVM: mmu_shrink: kvm_mmu_zap_page requires slots_lock to be held
  x86: KVM guest: make kvm_smp_prepare_boot_cpu() static
  KVM: SVM: fix suspend/resume support
  KVM: s390: rename private structures
  KVM: s390: Set guest storage limit and offset to sane values
  KVM: Fix memory leak on guest exit
  KVM: s390: dont allocate dirty bitmap
  KVM: move slots_lock acquision down to vapic_exit
  KVM: VMX: Fake emulate Intel perfctr MSRs
  KVM: VMX: Fix a wrong usage of vmcs_config
  ...

2 files changed, 38 insertions, 6 deletions

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index a281afeddfbb..0ea064cbfbc8 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -173,6 +173,30 @@ struct kvm_run {
         };
 };
 
+/* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
+
+struct kvm_coalesced_mmio_zone {
+        __u64 addr;
+        __u32 size;
+        __u32 pad;
+};
+
+struct kvm_coalesced_mmio {
+        __u64 phys_addr;
+        __u32 len;
+        __u32 pad;
+        __u8  data[8];
+};
+
+struct kvm_coalesced_mmio_ring {
+        __u32 first, last;
+        struct kvm_coalesced_mmio coalesced_mmio[0];
+};
+
+#define KVM_COALESCED_MMIO_MAX \
+        ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
+         sizeof(struct kvm_coalesced_mmio))
+
 /* for KVM_TRANSLATE */
 struct kvm_translation {
         /* in */
@@ -294,14 +318,14 @@ struct kvm_trace_rec {
         __u32 vcpu_id;
         union {
                 struct {
-                        __u32 cycle_lo, cycle_hi;
+                        __u64 cycle_u64;
                         __u32 extra_u32[KVM_TRC_EXTRA_MAX];
                 } cycle;
                 struct {
                         __u32 extra_u32[KVM_TRC_EXTRA_MAX];
                 } nocycle;
         } u;
-};
+} __attribute__((packed));
 
 #define KVMIO 0xAE
 
@@ -346,6 +370,7 @@ struct kvm_trace_rec {
 #define KVM_CAP_NOP_IO_DELAY 12
 #define KVM_CAP_PV_MMU 13
 #define KVM_CAP_MP_STATE 14
+#define KVM_CAP_COALESCED_MMIO 15
 
 /*
  * ioctls for VM fds
@@ -371,6 +396,10 @@ struct kvm_trace_rec {
 #define KVM_CREATE_PIT            _IO(KVMIO,  0x64)
 #define KVM_GET_PIT               _IOWR(KVMIO, 0x65, struct kvm_pit_state)
 #define KVM_SET_PIT               _IOR(KVMIO,  0x66, struct kvm_pit_state)
+#define KVM_REGISTER_COALESCED_MMIO \
+                        _IOW(KVMIO,  0x67, struct kvm_coalesced_mmio_zone)
+#define KVM_UNREGISTER_COALESCED_MMIO \
+                        _IOW(KVMIO,  0x68, struct kvm_coalesced_mmio_zone)
 
 /*
  * ioctls for vcpu fds
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index de9d1df4bba2..07d68a8ae8e9 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -52,7 +52,8 @@ struct kvm_io_bus {
 
 void kvm_io_bus_init(struct kvm_io_bus *bus);
 void kvm_io_bus_destroy(struct kvm_io_bus *bus);
-struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr);
+struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus,
+                                          gpa_t addr, int len, int is_write);
 void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
                              struct kvm_io_device *dev);
 
@@ -116,6 +117,10 @@ struct kvm {
         struct kvm_vm_stat stat;
         struct kvm_arch arch;
         atomic_t users_count;
+#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
+        struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
+        struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
+#endif
 };
 
 /* The guest did something we don't support. */
@@ -135,9 +140,6 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
 void vcpu_load(struct kvm_vcpu *vcpu);
 void vcpu_put(struct kvm_vcpu *vcpu);
 
-void decache_vcpus_on_cpu(int cpu);
-
-
 int kvm_init(void *opaque, unsigned int vcpu_size,
                   struct module *module);
 void kvm_exit(void);
@@ -166,6 +168,7 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
                                 struct kvm_userspace_memory_region *mem,
                                 struct kvm_memory_slot old,
                                 int user_alloc);
+void kvm_arch_flush_shadow(struct kvm *kvm);
 gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
 struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
 unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);