@@ -237,7 +237,6 @@ struct kvm_arch {
unsigned long vrma_slb_v;
int rma_setup_done;
int using_mmu_notifiers;
- struct list_head spapr_tce_tables;
spinlock_t slot_phys_lock;
unsigned long *slot_phys[KVM_MEM_SLOTS_NUM];
int slot_npages[KVM_MEM_SLOTS_NUM];
@@ -245,6 +244,9 @@ struct kvm_arch {
struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
struct kvmppc_linear_info *hpt_li;
#endif /* CONFIG_KVM_BOOK3S_64_HV */
+#ifdef CONFIG_PPC_BOOK3S_64
+ struct list_head spapr_tce_tables;
+#endif
};
/*
@@ -126,6 +126,8 @@ extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
struct kvm_create_spapr_tce *args);
+extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
+ unsigned long ioba, unsigned long tce);
extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm,
struct kvm_allocate_rma *rma);
extern struct kvmppc_linear_info *kvm_alloc_rma(void);
@@ -54,6 +54,7 @@ kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_PR) := \
book3s_paired_singles.o \
book3s_pr.o \
book3s_pr_papr.o \
+ book3s_64_vio.o \
book3s_emulate.o \
book3s_interrupts.o \
book3s_mmu_hpte.o \
@@ -70,7 +71,7 @@ kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_HV) := \
kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HV) := \
book3s_hv_rmhandlers.o \
book3s_hv_rm_mmu.o \
- book3s_64_vio_hv.o \
+ book3s_64_vio.o \
book3s_hv_builtin.o
kvm-book3s_64-module-objs := \
new file mode 100644
@@ -0,0 +1,187 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright 2010 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
+ * Copyright 2011 David Gibson, IBM Corporation <dwg@au1.ibm.com>
+ */
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/kvm.h>
+#include <linux/kvm_host.h>
+#include <linux/highmem.h>
+#include <linux/gfp.h>
+#include <linux/slab.h>
+#include <linux/hugetlb.h>
+#include <linux/list.h>
+#include <linux/anon_inodes.h>
+
+#include <asm/tlbflush.h>
+#include <asm/kvm_ppc.h>
+#include <asm/kvm_book3s.h>
+#include <asm/mmu-hash64.h>
+#include <asm/hvcall.h>
+#include <asm/synch.h>
+#include <asm/ppc-opcode.h>
+#include <asm/kvm_host.h>
+#include <asm/udbg.h>
+
+#define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64))
+
+/* WARNING: This will be called in real-mode on HV KVM and virtual
+ * mode on PR KVM
+ */
+long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
+ unsigned long ioba, unsigned long tce)
+{
+ struct kvm *kvm = vcpu->kvm;
+ struct kvmppc_spapr_tce_table *stt;
+
+ /* udbg_printf("H_PUT_TCE(): liobn=0x%lx ioba=0x%lx, tce=0x%lx\n", */
+ /* liobn, ioba, tce); */
+
+ list_for_each_entry(stt, &kvm->arch.spapr_tce_tables, list) {
+ if (stt->liobn == liobn) {
+ unsigned long idx = ioba >> SPAPR_TCE_SHIFT;
+ struct page *page;
+ u64 *tbl;
+
+ /* udbg_printf("H_PUT_TCE: liobn 0x%lx => stt=%p window_size=0x%x\n", */
+ /* liobn, stt, stt->window_size); */
+ if (ioba >= stt->window_size)
+ return H_PARAMETER;
+
+ page = stt->pages[idx / TCES_PER_PAGE];
+ tbl = (u64 *)page_address(page);
+
+ /* FIXME: Need to validate the TCE itself */
+ /* udbg_printf("tce @ %p\n", &tbl[idx % TCES_PER_PAGE]); */
+ tbl[idx % TCES_PER_PAGE] = tce;
+ return H_SUCCESS;
+ }
+ }
+
+ /* Didn't find the liobn, punt it to userspace */
+ return H_TOO_HARD;
+}
+
+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;
+}
deleted file mode 100644
@@ -1,73 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * Copyright 2010 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
- * Copyright 2011 David Gibson, IBM Corporation <dwg@au1.ibm.com>
- */
-
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/kvm.h>
-#include <linux/kvm_host.h>
-#include <linux/highmem.h>
-#include <linux/gfp.h>
-#include <linux/slab.h>
-#include <linux/hugetlb.h>
-#include <linux/list.h>
-
-#include <asm/tlbflush.h>
-#include <asm/kvm_ppc.h>
-#include <asm/kvm_book3s.h>
-#include <asm/mmu-hash64.h>
-#include <asm/hvcall.h>
-#include <asm/synch.h>
-#include <asm/ppc-opcode.h>
-#include <asm/kvm_host.h>
-#include <asm/udbg.h>
-
-#define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64))
-
-long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
- unsigned long ioba, unsigned long tce)
-{
- struct kvm *kvm = vcpu->kvm;
- struct kvmppc_spapr_tce_table *stt;
-
- /* udbg_printf("H_PUT_TCE(): liobn=0x%lx ioba=0x%lx, tce=0x%lx\n", */
- /* liobn, ioba, tce); */
-
- list_for_each_entry(stt, &kvm->arch.spapr_tce_tables, list) {
- if (stt->liobn == liobn) {
- unsigned long idx = ioba >> SPAPR_TCE_SHIFT;
- struct page *page;
- u64 *tbl;
-
- /* udbg_printf("H_PUT_TCE: liobn 0x%lx => stt=%p window_size=0x%x\n", */
- /* liobn, stt, stt->window_size); */
- if (ioba >= stt->window_size)
- return H_PARAMETER;
-
- page = stt->pages[idx / TCES_PER_PAGE];
- tbl = (u64 *)page_address(page);
-
- /* FIXME: Need to validate the TCE itself */
- /* udbg_printf("tce @ %p\n", &tbl[idx % TCES_PER_PAGE]); */
- tbl[idx % TCES_PER_PAGE] = tce;
- return H_SUCCESS;
- }
- }
-
- /* Didn't find the liobn, punt it to userspace */
- return H_TOO_HARD;
-}
@@ -1092,115 +1092,6 @@ 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. */
@@ -1167,11 +1167,14 @@ void kvmppc_core_commit_memory_region(struct kvm *kvm,
int kvmppc_core_init_vm(struct kvm *kvm)
{
+ INIT_LIST_HEAD(&kvm->arch.spapr_tce_tables);
+
return 0;
}
void kvmppc_core_destroy_vm(struct kvm *kvm)
{
+ WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
}
static int kvmppc_book3s_init(void)
@@ -15,6 +15,8 @@
* published by the Free Software Foundation.
*/
+#include <linux/anon_inodes.h>
+
#include <asm/uaccess.h>
#include <asm/kvm_ppc.h>
#include <asm/kvm_book3s.h>
@@ -211,6 +213,20 @@ static int kvmppc_h_pr_protect(struct kvm_vcpu *vcpu)
return EMULATE_DONE;
}
+static int kvmppc_h_pr_put_tce(struct kvm_vcpu *vcpu)
+{
+ unsigned long liobn = kvmppc_get_gpr(vcpu, 4);
+ unsigned long ioba = kvmppc_get_gpr(vcpu, 5);
+ unsigned long tce = kvmppc_get_gpr(vcpu, 6);
+ long rc;
+
+ rc = kvmppc_h_put_tce(vcpu, liobn, ioba, tce);
+ if (rc == H_TOO_HARD)
+ return EMULATE_FAIL;
+ kvmppc_set_gpr(vcpu, 3, rc);
+ return EMULATE_DONE;
+}
+
int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd)
{
switch (cmd) {
@@ -222,6 +238,8 @@ int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd)
return kvmppc_h_pr_protect(vcpu);
case H_BULK_REMOVE:
return kvmppc_h_pr_bulk_remove(vcpu);
+ case H_PUT_TCE:
+ return kvmppc_h_pr_put_tce(vcpu);
case H_CEDE:
kvm_vcpu_block(vcpu);
clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
@@ -244,10 +244,12 @@ int kvm_dev_ioctl_check_extension(long ext)
r = KVM_COALESCED_MMIO_PAGE_OFFSET;
break;
#endif
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_PPC_BOOK3S_64
case KVM_CAP_SPAPR_TCE:
r = 1;
break;
+#endif /* CONFIG_PPC_BOOK3S_64 */
+#ifdef CONFIG_KVM_BOOK3S_64_HV
case KVM_CAP_PPC_SMT:
r = threads_per_core;
break;
@@ -773,7 +775,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
break;
}
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_PPC_BOOK3S_64
case KVM_CREATE_SPAPR_TCE: {
struct kvm_create_spapr_tce create_tce;
struct kvm *kvm = filp->private_data;
@@ -784,7 +786,9 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce);
goto out;
}
+#endif /* CONFIG_PPC_BOOK3S_64 */
+#ifdef CONFIG_KVM_BOOK3S_64_HV
case KVM_ALLOCATE_RMA: {
struct kvm *kvm = filp->private_data;
struct kvm_allocate_rma rma;