1 files changed, 51 insertions, 23 deletions

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 2a4551f78f60..297fcd2ff7d0 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -23,7 +23,9 @@
 #include <linux/kvm_host.h>
 #include <linux/module.h>
 #include <linux/vmalloc.h>
+#include <linux/hrtimer.h>
 #include <linux/fs.h>
+#include <linux/slab.h>
 #include <asm/cputable.h>
 #include <asm/uaccess.h>
 #include <asm/kvm_ppc.h>
@@ -78,8 +80,9 @@ int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu)
         return r;
 }
 
-void kvm_arch_hardware_enable(void *garbage)
+int kvm_arch_hardware_enable(void *garbage)
 {
+        return 0;
 }
 
 void kvm_arch_hardware_disable(void *garbage)
@@ -135,6 +138,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 {
         kvmppc_free_vcpus(kvm);
         kvm_free_physmem(kvm);
+        cleanup_srcu_struct(&kvm->srcu);
         kfree(kvm);
 }
 
@@ -143,6 +147,9 @@ int kvm_dev_ioctl_check_extension(long ext)
         int r;
 
         switch (ext) {
+        case KVM_CAP_PPC_SEGSTATE:
+                r = 1;
+                break;
         case KVM_CAP_COALESCED_MMIO:
                 r = KVM_COALESCED_MMIO_PAGE_OFFSET;
                 break;
@@ -160,14 +167,24 @@ long kvm_arch_dev_ioctl(struct file *filp,
         return -EINVAL;
 }
 
-int kvm_arch_set_memory_region(struct kvm *kvm,
-                               struct kvm_userspace_memory_region *mem,
-                               struct kvm_memory_slot old,
-                               int user_alloc)
+int kvm_arch_prepare_memory_region(struct kvm *kvm,
+                                   struct kvm_memory_slot *memslot,
+                                   struct kvm_memory_slot old,
+                                   struct kvm_userspace_memory_region *mem,
+                                   int user_alloc)
 {
         return 0;
 }
 
+void kvm_arch_commit_memory_region(struct kvm *kvm,
+               struct kvm_userspace_memory_region *mem,
+               struct kvm_memory_slot old,
+               int user_alloc)
+{
+       return;
+}
+
+
 void kvm_arch_flush_shadow(struct kvm *kvm)
 {
 }
@@ -208,10 +225,25 @@ static void kvmppc_decrementer_func(unsigned long data)
         }
 }
 
+/*
+ * low level hrtimer wake routine. Because this runs in hardirq context
+ * we schedule a tasklet to do the real work.
+ */
+enum hrtimer_restart kvmppc_decrementer_wakeup(struct hrtimer *timer)
+{
+        struct kvm_vcpu *vcpu;
+
+        vcpu = container_of(timer, struct kvm_vcpu, arch.dec_timer);
+        tasklet_schedule(&vcpu->arch.tasklet);
+
+        return HRTIMER_NORESTART;
+}
+
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 {
-        setup_timer(&vcpu->arch.dec_timer, kvmppc_decrementer_func,
-                    (unsigned long)vcpu);
+        hrtimer_init(&vcpu->arch.dec_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
+        tasklet_init(&vcpu->arch.tasklet, kvmppc_decrementer_func, (ulong)vcpu);
+        vcpu->arch.dec_timer.function = kvmppc_decrementer_wakeup;
 
         return 0;
 }
@@ -240,34 +272,35 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu,
                                      struct kvm_run *run)
 {
-        ulong *gpr = &vcpu->arch.gpr[vcpu->arch.io_gpr];
-        *gpr = run->dcr.data;
+        kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, run->dcr.data);
 }
 
 static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
                                       struct kvm_run *run)
 {
-        ulong *gpr = &vcpu->arch.gpr[vcpu->arch.io_gpr];
+        ulong gpr;
 
-        if (run->mmio.len > sizeof(*gpr)) {
+        if (run->mmio.len > sizeof(gpr)) {
                 printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len);
                 return;
         }
 
         if (vcpu->arch.mmio_is_bigendian) {
                 switch (run->mmio.len) {
-                case 4: *gpr = *(u32 *)run->mmio.data; break;
-                case 2: *gpr = *(u16 *)run->mmio.data; break;
-                case 1: *gpr = *(u8 *)run->mmio.data; break;
+                case 4: gpr = *(u32 *)run->mmio.data; break;
+                case 2: gpr = *(u16 *)run->mmio.data; break;
+                case 1: gpr = *(u8 *)run->mmio.data; break;
                 }
         } else {
                 /* Convert BE data from userland back to LE. */
                 switch (run->mmio.len) {
-                case 4: *gpr = ld_le32((u32 *)run->mmio.data); break;
-                case 2: *gpr = ld_le16((u16 *)run->mmio.data); break;
-                case 1: *gpr = *(u8 *)run->mmio.data; break;
+                case 4: gpr = ld_le32((u32 *)run->mmio.data); break;
+                case 2: gpr = ld_le16((u16 *)run->mmio.data); break;
+                case 1: gpr = *(u8 *)run->mmio.data; break;
                 }
         }
+
+        kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
 }
 
 int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
@@ -409,11 +442,6 @@ out:
         return r;
 }
 
-int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
-{
-        return -ENOTSUPP;
-}
-
 long kvm_arch_vm_ioctl(struct file *filp,
                        unsigned int ioctl, unsigned long arg)
 {
@@ -421,7 +449,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
 
         switch (ioctl) {
         default:
-                r = -EINVAL;
+                r = -ENOTTY;
         }
 
         return r;