2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License, version 2, as
4 * published by the Free Software Foundation.
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
15 * Copyright IBM Corp. 2007
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
18 * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
21 #include <linux/errno.h>
22 #include <linux/err.h>
23 #include <linux/kvm_host.h>
24 #include <linux/vmalloc.h>
25 #include <linux/hrtimer.h>
27 #include <linux/slab.h>
28 #include <asm/cputable.h>
29 #include <asm/uaccess.h>
30 #include <asm/kvm_ppc.h>
31 #include <asm/tlbflush.h>
32 #include <asm/cputhreads.h>
34 #include "../mm/mmu_decl.h"
36 #define CREATE_TRACE_POINTS
39 int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
41 return !(v->arch.shared->msr & MSR_WE) ||
42 !!(v->arch.pending_exceptions) ||
46 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
51 int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
53 int nr = kvmppc_get_gpr(vcpu, 11);
55 unsigned long __maybe_unused param1 = kvmppc_get_gpr(vcpu, 3);
56 unsigned long __maybe_unused param2 = kvmppc_get_gpr(vcpu, 4);
57 unsigned long __maybe_unused param3 = kvmppc_get_gpr(vcpu, 5);
58 unsigned long __maybe_unused param4 = kvmppc_get_gpr(vcpu, 6);
61 if (!(vcpu->arch.shared->msr & MSR_SF)) {
70 case KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE):
72 vcpu->arch.magic_page_pa = param1;
73 vcpu->arch.magic_page_ea = param2;
75 r2 = KVM_MAGIC_FEAT_SR | KVM_MAGIC_FEAT_MAS0_TO_SPRG7;
80 case KVM_HCALL_TOKEN(KVM_HC_FEATURES):
82 #if defined(CONFIG_PPC_BOOK3S) || defined(CONFIG_KVM_E500V2)
83 /* XXX Missing magic page on 44x */
84 r2 |= (1 << KVM_FEATURE_MAGIC_PAGE);
87 /* Second return value is in r4 */
94 kvmppc_set_gpr(vcpu, 4, r2);
99 int kvmppc_sanity_check(struct kvm_vcpu *vcpu)
103 /* We have to know what CPU to virtualize */
107 /* PAPR only works with book3s_64 */
108 if ((vcpu->arch.cpu_type != KVM_CPU_3S_64) && vcpu->arch.papr_enabled)
111 #ifdef CONFIG_KVM_BOOK3S_64_HV
112 /* HV KVM can only do PAPR mode for now */
113 if (!vcpu->arch.papr_enabled)
117 #ifdef CONFIG_KVM_BOOKE_HV
118 if (!cpu_has_feature(CPU_FTR_EMB_HV))
126 return r ? 0 : -EINVAL;
129 int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu)
131 enum emulation_result er;
134 er = kvmppc_emulate_instruction(run, vcpu);
137 /* Future optimization: only reload non-volatiles if they were
138 * actually modified. */
141 case EMULATE_DO_MMIO:
142 run->exit_reason = KVM_EXIT_MMIO;
143 /* We must reload nonvolatiles because "update" load/store
144 * instructions modify register state. */
145 /* Future optimization: only reload non-volatiles if they were
146 * actually modified. */
150 /* XXX Deliver Program interrupt to guest. */
151 printk(KERN_EMERG "%s: emulation failed (%08x)\n", __func__,
152 kvmppc_get_last_inst(vcpu));
162 int kvm_arch_hardware_enable(void *garbage)
167 void kvm_arch_hardware_disable(void *garbage)
171 int kvm_arch_hardware_setup(void)
176 void kvm_arch_hardware_unsetup(void)
180 void kvm_arch_check_processor_compat(void *rtn)
182 *(int *)rtn = kvmppc_core_check_processor_compat();
185 int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
190 return kvmppc_core_init_vm(kvm);
193 void kvm_arch_destroy_vm(struct kvm *kvm)
196 struct kvm_vcpu *vcpu;
198 kvm_for_each_vcpu(i, vcpu, kvm)
199 kvm_arch_vcpu_free(vcpu);
201 mutex_lock(&kvm->lock);
202 for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
203 kvm->vcpus[i] = NULL;
205 atomic_set(&kvm->online_vcpus, 0);
207 kvmppc_core_destroy_vm(kvm);
209 mutex_unlock(&kvm->lock);
212 void kvm_arch_sync_events(struct kvm *kvm)
216 int kvm_dev_ioctl_check_extension(long ext)
222 case KVM_CAP_PPC_BOOKE_SREGS:
224 case KVM_CAP_PPC_SEGSTATE:
225 case KVM_CAP_PPC_HIOR:
226 case KVM_CAP_PPC_PAPR:
228 case KVM_CAP_PPC_UNSET_IRQ:
229 case KVM_CAP_PPC_IRQ_LEVEL:
230 case KVM_CAP_ENABLE_CAP:
231 case KVM_CAP_ONE_REG:
234 #ifndef CONFIG_KVM_BOOK3S_64_HV
235 case KVM_CAP_PPC_PAIRED_SINGLES:
236 case KVM_CAP_PPC_OSI:
237 case KVM_CAP_PPC_GET_PVINFO:
238 #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
243 case KVM_CAP_COALESCED_MMIO:
244 r = KVM_COALESCED_MMIO_PAGE_OFFSET;
247 #ifdef CONFIG_PPC_BOOK3S_64
248 case KVM_CAP_SPAPR_TCE:
249 case KVM_CAP_PPC_ALLOC_HTAB:
252 #endif /* CONFIG_PPC_BOOK3S_64 */
253 #ifdef CONFIG_KVM_BOOK3S_64_HV
254 case KVM_CAP_PPC_SMT:
255 r = threads_per_core;
257 case KVM_CAP_PPC_RMA:
259 /* PPC970 requires an RMA */
260 if (cpu_has_feature(CPU_FTR_ARCH_201))
263 case KVM_CAP_SYNC_MMU:
264 r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0;
267 case KVM_CAP_NR_VCPUS:
269 * Recommending a number of CPUs is somewhat arbitrary; we
270 * return the number of present CPUs for -HV (since a host
271 * will have secondary threads "offline"), and for other KVM
272 * implementations just count online CPUs.
274 #ifdef CONFIG_KVM_BOOK3S_64_HV
275 r = num_present_cpus();
277 r = num_online_cpus();
280 case KVM_CAP_MAX_VCPUS:
283 #ifdef CONFIG_PPC_BOOK3S_64
284 case KVM_CAP_PPC_GET_SMMU_INFO:
296 long kvm_arch_dev_ioctl(struct file *filp,
297 unsigned int ioctl, unsigned long arg)
302 void kvm_arch_free_memslot(struct kvm_memory_slot *free,
303 struct kvm_memory_slot *dont)
305 if (!dont || free->arch.rmap != dont->arch.rmap) {
306 vfree(free->arch.rmap);
307 free->arch.rmap = NULL;
311 int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
313 slot->arch.rmap = vzalloc(npages * sizeof(*slot->arch.rmap));
314 if (!slot->arch.rmap)
320 int kvm_arch_prepare_memory_region(struct kvm *kvm,
321 struct kvm_memory_slot *memslot,
322 struct kvm_memory_slot old,
323 struct kvm_userspace_memory_region *mem,
326 return kvmppc_core_prepare_memory_region(kvm, mem);
329 void kvm_arch_commit_memory_region(struct kvm *kvm,
330 struct kvm_userspace_memory_region *mem,
331 struct kvm_memory_slot old,
334 kvmppc_core_commit_memory_region(kvm, mem);
337 void kvm_arch_flush_shadow_all(struct kvm *kvm)
341 void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
342 struct kvm_memory_slot *slot)
346 struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
348 struct kvm_vcpu *vcpu;
349 vcpu = kvmppc_core_vcpu_create(kvm, id);
351 vcpu->arch.wqp = &vcpu->wq;
352 kvmppc_create_vcpu_debugfs(vcpu, id);
357 void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
359 /* Make sure we're not using the vcpu anymore */
360 hrtimer_cancel(&vcpu->arch.dec_timer);
361 tasklet_kill(&vcpu->arch.tasklet);
363 kvmppc_remove_vcpu_debugfs(vcpu);
364 kvmppc_core_vcpu_free(vcpu);
367 void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
369 kvm_arch_vcpu_free(vcpu);
372 int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
374 return kvmppc_core_pending_dec(vcpu);
378 * low level hrtimer wake routine. Because this runs in hardirq context
379 * we schedule a tasklet to do the real work.
381 enum hrtimer_restart kvmppc_decrementer_wakeup(struct hrtimer *timer)
383 struct kvm_vcpu *vcpu;
385 vcpu = container_of(timer, struct kvm_vcpu, arch.dec_timer);
386 tasklet_schedule(&vcpu->arch.tasklet);
388 return HRTIMER_NORESTART;
391 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
393 hrtimer_init(&vcpu->arch.dec_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
394 tasklet_init(&vcpu->arch.tasklet, kvmppc_decrementer_func, (ulong)vcpu);
395 vcpu->arch.dec_timer.function = kvmppc_decrementer_wakeup;
396 vcpu->arch.dec_expires = ~(u64)0;
398 #ifdef CONFIG_KVM_EXIT_TIMING
399 mutex_init(&vcpu->arch.exit_timing_lock);
405 void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
407 kvmppc_mmu_destroy(vcpu);
410 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
414 * vrsave (formerly usprg0) isn't used by Linux, but may
415 * be used by the guest.
417 * On non-booke this is associated with Altivec and
418 * is handled by code in book3s.c.
420 mtspr(SPRN_VRSAVE, vcpu->arch.vrsave);
422 kvmppc_core_vcpu_load(vcpu, cpu);
423 vcpu->cpu = smp_processor_id();
426 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
428 kvmppc_core_vcpu_put(vcpu);
430 vcpu->arch.vrsave = mfspr(SPRN_VRSAVE);
435 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
436 struct kvm_guest_debug *dbg)
441 static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu,
444 kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, run->dcr.data);
447 static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
450 u64 uninitialized_var(gpr);
452 if (run->mmio.len > sizeof(gpr)) {
453 printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len);
457 if (vcpu->arch.mmio_is_bigendian) {
458 switch (run->mmio.len) {
459 case 8: gpr = *(u64 *)run->mmio.data; break;
460 case 4: gpr = *(u32 *)run->mmio.data; break;
461 case 2: gpr = *(u16 *)run->mmio.data; break;
462 case 1: gpr = *(u8 *)run->mmio.data; break;
465 /* Convert BE data from userland back to LE. */
466 switch (run->mmio.len) {
467 case 4: gpr = ld_le32((u32 *)run->mmio.data); break;
468 case 2: gpr = ld_le16((u16 *)run->mmio.data); break;
469 case 1: gpr = *(u8 *)run->mmio.data; break;
473 if (vcpu->arch.mmio_sign_extend) {
474 switch (run->mmio.len) {
489 kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
491 switch (vcpu->arch.io_gpr & KVM_MMIO_REG_EXT_MASK) {
492 case KVM_MMIO_REG_GPR:
493 kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
495 case KVM_MMIO_REG_FPR:
496 vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
498 #ifdef CONFIG_PPC_BOOK3S
499 case KVM_MMIO_REG_QPR:
500 vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
502 case KVM_MMIO_REG_FQPR:
503 vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
504 vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
512 int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
513 unsigned int rt, unsigned int bytes, int is_bigendian)
515 if (bytes > sizeof(run->mmio.data)) {
516 printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
520 run->mmio.phys_addr = vcpu->arch.paddr_accessed;
521 run->mmio.len = bytes;
522 run->mmio.is_write = 0;
524 vcpu->arch.io_gpr = rt;
525 vcpu->arch.mmio_is_bigendian = is_bigendian;
526 vcpu->mmio_needed = 1;
527 vcpu->mmio_is_write = 0;
528 vcpu->arch.mmio_sign_extend = 0;
530 return EMULATE_DO_MMIO;
533 /* Same as above, but sign extends */
534 int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
535 unsigned int rt, unsigned int bytes, int is_bigendian)
539 r = kvmppc_handle_load(run, vcpu, rt, bytes, is_bigendian);
540 vcpu->arch.mmio_sign_extend = 1;
545 int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
546 u64 val, unsigned int bytes, int is_bigendian)
548 void *data = run->mmio.data;
550 if (bytes > sizeof(run->mmio.data)) {
551 printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
555 run->mmio.phys_addr = vcpu->arch.paddr_accessed;
556 run->mmio.len = bytes;
557 run->mmio.is_write = 1;
558 vcpu->mmio_needed = 1;
559 vcpu->mmio_is_write = 1;
561 /* Store the value at the lowest bytes in 'data'. */
564 case 8: *(u64 *)data = val; break;
565 case 4: *(u32 *)data = val; break;
566 case 2: *(u16 *)data = val; break;
567 case 1: *(u8 *)data = val; break;
570 /* Store LE value into 'data'. */
572 case 4: st_le32(data, val); break;
573 case 2: st_le16(data, val); break;
574 case 1: *(u8 *)data = val; break;
578 return EMULATE_DO_MMIO;
581 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
586 if (vcpu->sigset_active)
587 sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
589 if (vcpu->mmio_needed) {
590 if (!vcpu->mmio_is_write)
591 kvmppc_complete_mmio_load(vcpu, run);
592 vcpu->mmio_needed = 0;
593 } else if (vcpu->arch.dcr_needed) {
594 if (!vcpu->arch.dcr_is_write)
595 kvmppc_complete_dcr_load(vcpu, run);
596 vcpu->arch.dcr_needed = 0;
597 } else if (vcpu->arch.osi_needed) {
598 u64 *gprs = run->osi.gprs;
601 for (i = 0; i < 32; i++)
602 kvmppc_set_gpr(vcpu, i, gprs[i]);
603 vcpu->arch.osi_needed = 0;
604 } else if (vcpu->arch.hcall_needed) {
607 kvmppc_set_gpr(vcpu, 3, run->papr_hcall.ret);
608 for (i = 0; i < 9; ++i)
609 kvmppc_set_gpr(vcpu, 4 + i, run->papr_hcall.args[i]);
610 vcpu->arch.hcall_needed = 0;
613 r = kvmppc_vcpu_run(run, vcpu);
615 if (vcpu->sigset_active)
616 sigprocmask(SIG_SETMASK, &sigsaved, NULL);
621 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
623 if (irq->irq == KVM_INTERRUPT_UNSET) {
624 kvmppc_core_dequeue_external(vcpu, irq);
628 kvmppc_core_queue_external(vcpu, irq);
635 static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
636 struct kvm_enable_cap *cap)
644 case KVM_CAP_PPC_OSI:
646 vcpu->arch.osi_enabled = true;
648 case KVM_CAP_PPC_PAPR:
650 vcpu->arch.papr_enabled = true;
652 #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
653 case KVM_CAP_SW_TLB: {
654 struct kvm_config_tlb cfg;
655 void __user *user_ptr = (void __user *)(uintptr_t)cap->args[0];
658 if (copy_from_user(&cfg, user_ptr, sizeof(cfg)))
661 r = kvm_vcpu_ioctl_config_tlb(vcpu, &cfg);
671 r = kvmppc_sanity_check(vcpu);
676 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
677 struct kvm_mp_state *mp_state)
682 int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
683 struct kvm_mp_state *mp_state)
688 long kvm_arch_vcpu_ioctl(struct file *filp,
689 unsigned int ioctl, unsigned long arg)
691 struct kvm_vcpu *vcpu = filp->private_data;
692 void __user *argp = (void __user *)arg;
696 case KVM_INTERRUPT: {
697 struct kvm_interrupt irq;
699 if (copy_from_user(&irq, argp, sizeof(irq)))
701 r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
707 struct kvm_enable_cap cap;
709 if (copy_from_user(&cap, argp, sizeof(cap)))
711 r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap);
715 case KVM_SET_ONE_REG:
716 case KVM_GET_ONE_REG:
718 struct kvm_one_reg reg;
720 if (copy_from_user(®, argp, sizeof(reg)))
722 if (ioctl == KVM_SET_ONE_REG)
723 r = kvm_vcpu_ioctl_set_one_reg(vcpu, ®);
725 r = kvm_vcpu_ioctl_get_one_reg(vcpu, ®);
729 #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
730 case KVM_DIRTY_TLB: {
731 struct kvm_dirty_tlb dirty;
733 if (copy_from_user(&dirty, argp, sizeof(dirty)))
735 r = kvm_vcpu_ioctl_dirty_tlb(vcpu, &dirty);
747 int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
749 return VM_FAULT_SIGBUS;
752 static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo)
754 u32 inst_lis = 0x3c000000;
755 u32 inst_ori = 0x60000000;
756 u32 inst_nop = 0x60000000;
757 u32 inst_sc = 0x44000002;
758 u32 inst_imm_mask = 0xffff;
761 * The hypercall to get into KVM from within guest context is as
764 * lis r0, r0, KVM_SC_MAGIC_R0@h
765 * ori r0, KVM_SC_MAGIC_R0@l
769 pvinfo->hcall[0] = inst_lis | ((KVM_SC_MAGIC_R0 >> 16) & inst_imm_mask);
770 pvinfo->hcall[1] = inst_ori | (KVM_SC_MAGIC_R0 & inst_imm_mask);
771 pvinfo->hcall[2] = inst_sc;
772 pvinfo->hcall[3] = inst_nop;
777 long kvm_arch_vm_ioctl(struct file *filp,
778 unsigned int ioctl, unsigned long arg)
780 void __user *argp = (void __user *)arg;
784 case KVM_PPC_GET_PVINFO: {
785 struct kvm_ppc_pvinfo pvinfo;
786 memset(&pvinfo, 0, sizeof(pvinfo));
787 r = kvm_vm_ioctl_get_pvinfo(&pvinfo);
788 if (copy_to_user(argp, &pvinfo, sizeof(pvinfo))) {
795 #ifdef CONFIG_PPC_BOOK3S_64
796 case KVM_CREATE_SPAPR_TCE: {
797 struct kvm_create_spapr_tce create_tce;
798 struct kvm *kvm = filp->private_data;
801 if (copy_from_user(&create_tce, argp, sizeof(create_tce)))
803 r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce);
806 #endif /* CONFIG_PPC_BOOK3S_64 */
808 #ifdef CONFIG_KVM_BOOK3S_64_HV
809 case KVM_ALLOCATE_RMA: {
810 struct kvm *kvm = filp->private_data;
811 struct kvm_allocate_rma rma;
813 r = kvm_vm_ioctl_allocate_rma(kvm, &rma);
814 if (r >= 0 && copy_to_user(argp, &rma, sizeof(rma)))
819 case KVM_PPC_ALLOCATE_HTAB: {
820 struct kvm *kvm = filp->private_data;
824 if (get_user(htab_order, (u32 __user *)argp))
826 r = kvmppc_alloc_reset_hpt(kvm, &htab_order);
830 if (put_user(htab_order, (u32 __user *)argp))
835 #endif /* CONFIG_KVM_BOOK3S_64_HV */
837 #ifdef CONFIG_PPC_BOOK3S_64
838 case KVM_PPC_GET_SMMU_INFO: {
839 struct kvm *kvm = filp->private_data;
840 struct kvm_ppc_smmu_info info;
842 memset(&info, 0, sizeof(info));
843 r = kvm_vm_ioctl_get_smmu_info(kvm, &info);
844 if (r >= 0 && copy_to_user(argp, &info, sizeof(info)))
848 #endif /* CONFIG_PPC_BOOK3S_64 */
857 static unsigned long lpid_inuse[BITS_TO_LONGS(KVMPPC_NR_LPIDS)];
858 static unsigned long nr_lpids;
860 long kvmppc_alloc_lpid(void)
865 lpid = find_first_zero_bit(lpid_inuse, KVMPPC_NR_LPIDS);
866 if (lpid >= nr_lpids) {
867 pr_err("%s: No LPIDs free\n", __func__);
870 } while (test_and_set_bit(lpid, lpid_inuse));
875 void kvmppc_claim_lpid(long lpid)
877 set_bit(lpid, lpid_inuse);
880 void kvmppc_free_lpid(long lpid)
882 clear_bit(lpid, lpid_inuse);
885 void kvmppc_init_lpid(unsigned long nr_lpids_param)
887 nr_lpids = min_t(unsigned long, KVMPPC_NR_LPIDS, nr_lpids_param);
888 memset(lpid_inuse, 0, sizeof(lpid_inuse));
891 int kvm_arch_init(void *opaque)
896 void kvm_arch_exit(void)