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Diffstat (limited to 'arch/powerpc/kvm/book3s_hv.c')
-rw-r--r--arch/powerpc/kvm/book3s_hv.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 907935764de0..59c296743595 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -1093,115 +1093,6 @@ int kvmppc_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu)
return r;
}
-static long kvmppc_stt_npages(unsigned long window_size)
-{
- return ALIGN((window_size >> SPAPR_TCE_SHIFT)
- * sizeof(u64), PAGE_SIZE) / PAGE_SIZE;
-}
-
-static void release_spapr_tce_table(struct kvmppc_spapr_tce_table *stt)
-{
- struct kvm *kvm = stt->kvm;
- int i;
-
- mutex_lock(&kvm->lock);
- list_del(&stt->list);
- for (i = 0; i < kvmppc_stt_npages(stt->window_size); i++)
- __free_page(stt->pages[i]);
- kfree(stt);
- mutex_unlock(&kvm->lock);
-
- kvm_put_kvm(kvm);
-}
-
-static int kvm_spapr_tce_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
- struct kvmppc_spapr_tce_table *stt = vma->vm_file->private_data;
- struct page *page;
-
- if (vmf->pgoff >= kvmppc_stt_npages(stt->window_size))
- return VM_FAULT_SIGBUS;
-
- page = stt->pages[vmf->pgoff];
- get_page(page);
- vmf->page = page;
- return 0;
-}
-
-static const struct vm_operations_struct kvm_spapr_tce_vm_ops = {
- .fault = kvm_spapr_tce_fault,
-};
-
-static int kvm_spapr_tce_mmap(struct file *file, struct vm_area_struct *vma)
-{
- vma->vm_ops = &kvm_spapr_tce_vm_ops;
- return 0;
-}
-
-static int kvm_spapr_tce_release(struct inode *inode, struct file *filp)
-{
- struct kvmppc_spapr_tce_table *stt = filp->private_data;
-
- release_spapr_tce_table(stt);
- return 0;
-}
-
-static struct file_operations kvm_spapr_tce_fops = {
- .mmap = kvm_spapr_tce_mmap,
- .release = kvm_spapr_tce_release,
-};
-
-long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
- struct kvm_create_spapr_tce *args)
-{
- struct kvmppc_spapr_tce_table *stt = NULL;
- long npages;
- int ret = -ENOMEM;
- int i;
-
- /* Check this LIOBN hasn't been previously allocated */
- list_for_each_entry(stt, &kvm->arch.spapr_tce_tables, list) {
- if (stt->liobn == args->liobn)
- return -EBUSY;
- }
-
- npages = kvmppc_stt_npages(args->window_size);
-
- stt = kzalloc(sizeof(*stt) + npages* sizeof(struct page *),
- GFP_KERNEL);
- if (!stt)
- goto fail;
-
- stt->liobn = args->liobn;
- stt->window_size = args->window_size;
- stt->kvm = kvm;
-
- for (i = 0; i < npages; i++) {
- stt->pages[i] = alloc_page(GFP_KERNEL | __GFP_ZERO);
- if (!stt->pages[i])
- goto fail;
- }
-
- kvm_get_kvm(kvm);
-
- mutex_lock(&kvm->lock);
- list_add(&stt->list, &kvm->arch.spapr_tce_tables);
-
- mutex_unlock(&kvm->lock);
-
- return anon_inode_getfd("kvm-spapr-tce", &kvm_spapr_tce_fops,
- stt, O_RDWR);
-
-fail:
- if (stt) {
- for (i = 0; i < npages; i++)
- if (stt->pages[i])
- __free_page(stt->pages[i]);
-
- kfree(stt);
- }
- return ret;
-}
/* Work out RMLS (real mode limit selector) field value for a given RMA size.
Assumes POWER7 or PPC970. */