--- /dev/null
+/*
+ * 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 IBM Corp. 2007
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
+ */
+
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/kvm_host.h>
+#include <linux/vmalloc.h>
+#include <linux/hrtimer.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/file.h>
+#include <linux/module.h>
+#include <asm/cputable.h>
+#include <asm/uaccess.h>
+#include <asm/kvm_ppc.h>
+#include <asm/tlbflush.h>
+#include <asm/cputhreads.h>
+#include <asm/irqflags.h>
+#include "timing.h"
+#include "irq.h"
+#include "../mm/mmu_decl.h"
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
+struct kvmppc_ops *kvmppc_hv_ops;
+EXPORT_SYMBOL_GPL(kvmppc_hv_ops);
+struct kvmppc_ops *kvmppc_pr_ops;
+EXPORT_SYMBOL_GPL(kvmppc_pr_ops);
+
+
+int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
+{
+ return !!(v->arch.pending_exceptions) ||
+ v->requests;
+}
+
+int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
+{
+ return 1;
+}
+
+/*
+ * Common checks before entering the guest world. Call with interrupts
+ * disabled.
+ *
+ * returns:
+ *
+ * == 1 if we're ready to go into guest state
+ * <= 0 if we need to go back to the host with return value
+ */
+int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
+{
+ int r;
+
+ WARN_ON(irqs_disabled());
+ hard_irq_disable();
+
+ while (true) {
+ if (need_resched()) {
+ local_irq_enable();
+ cond_resched();
+ hard_irq_disable();
+ continue;
+ }
+
+ if (signal_pending(current)) {
+ kvmppc_account_exit(vcpu, SIGNAL_EXITS);
+ vcpu->run->exit_reason = KVM_EXIT_INTR;
+ r = -EINTR;
+ break;
+ }
+
+ vcpu->mode = IN_GUEST_MODE;
+
+ /*
+ * Reading vcpu->requests must happen after setting vcpu->mode,
+ * so we don't miss a request because the requester sees
+ * OUTSIDE_GUEST_MODE and assumes we'll be checking requests
+ * before next entering the guest (and thus doesn't IPI).
+ */
+ smp_mb();
+
+ if (vcpu->requests) {
+ /* Make sure we process requests preemptable */
+ local_irq_enable();
+ trace_kvm_check_requests(vcpu);
+ r = kvmppc_core_check_requests(vcpu);
+ hard_irq_disable();
+ if (r > 0)
+ continue;
+ break;
+ }
+
+ if (kvmppc_core_prepare_to_enter(vcpu)) {
+ /* interrupts got enabled in between, so we
+ are back at square 1 */
+ continue;
+ }
+
+ kvm_guest_enter();
+ return 1;
+ }
+
+ /* return to host */
+ local_irq_enable();
+ return r;
+}
+EXPORT_SYMBOL_GPL(kvmppc_prepare_to_enter);
+
+#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
+static void kvmppc_swab_shared(struct kvm_vcpu *vcpu)
+{
+ struct kvm_vcpu_arch_shared *shared = vcpu->arch.shared;
+ int i;
+
+ shared->sprg0 = swab64(shared->sprg0);
+ shared->sprg1 = swab64(shared->sprg1);
+ shared->sprg2 = swab64(shared->sprg2);
+ shared->sprg3 = swab64(shared->sprg3);
+ shared->srr0 = swab64(shared->srr0);
+ shared->srr1 = swab64(shared->srr1);
+ shared->dar = swab64(shared->dar);
+ shared->msr = swab64(shared->msr);
+ shared->dsisr = swab32(shared->dsisr);
+ shared->int_pending = swab32(shared->int_pending);
+ for (i = 0; i < ARRAY_SIZE(shared->sr); i++)
+ shared->sr[i] = swab32(shared->sr[i]);
+}
+#endif
+
+int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
+{
+ int nr = kvmppc_get_gpr(vcpu, 11);
+ int r;
+ unsigned long __maybe_unused param1 = kvmppc_get_gpr(vcpu, 3);
+ unsigned long __maybe_unused param2 = kvmppc_get_gpr(vcpu, 4);
+ unsigned long __maybe_unused param3 = kvmppc_get_gpr(vcpu, 5);
+ unsigned long __maybe_unused param4 = kvmppc_get_gpr(vcpu, 6);
+ unsigned long r2 = 0;
+
+ if (!(kvmppc_get_msr(vcpu) & MSR_SF)) {
+ /* 32 bit mode */
+ param1 &= 0xffffffff;
+ param2 &= 0xffffffff;
+ param3 &= 0xffffffff;
+ param4 &= 0xffffffff;
+ }
+
+ switch (nr) {
+ case KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE):
+ {
+#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
+ /* Book3S can be little endian, find it out here */
+ int shared_big_endian = true;
+ if (vcpu->arch.intr_msr & MSR_LE)
+ shared_big_endian = false;
+ if (shared_big_endian != vcpu->arch.shared_big_endian)
+ kvmppc_swab_shared(vcpu);
+ vcpu->arch.shared_big_endian = shared_big_endian;
+#endif
+
+ if (!(param2 & MAGIC_PAGE_FLAG_NOT_MAPPED_NX)) {
+ /*
+ * Older versions of the Linux magic page code had
+ * a bug where they would map their trampoline code
+ * NX. If that's the case, remove !PR NX capability.
+ */
+ vcpu->arch.disable_kernel_nx = true;
+ kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu);
+ }
+
+ vcpu->arch.magic_page_pa = param1 & ~0xfffULL;
+ vcpu->arch.magic_page_ea = param2 & ~0xfffULL;
+
+#ifdef CONFIG_PPC_64K_PAGES
+ /*
+ * Make sure our 4k magic page is in the same window of a 64k
+ * page within the guest and within the host's page.
+ */
+ if ((vcpu->arch.magic_page_pa & 0xf000) !=
+ ((ulong)vcpu->arch.shared & 0xf000)) {
+ void *old_shared = vcpu->arch.shared;
+ ulong shared = (ulong)vcpu->arch.shared;
+ void *new_shared;
+
+ shared &= PAGE_MASK;
+ shared |= vcpu->arch.magic_page_pa & 0xf000;
+ new_shared = (void*)shared;
+ memcpy(new_shared, old_shared, 0x1000);
+ vcpu->arch.shared = new_shared;
+ }
+#endif
+
+ r2 = KVM_MAGIC_FEAT_SR | KVM_MAGIC_FEAT_MAS0_TO_SPRG7;
+
+ r = EV_SUCCESS;
+ break;
+ }
+ case KVM_HCALL_TOKEN(KVM_HC_FEATURES):
+ r = EV_SUCCESS;
+#if defined(CONFIG_PPC_BOOK3S) || defined(CONFIG_KVM_E500V2)
+ r2 |= (1 << KVM_FEATURE_MAGIC_PAGE);
+#endif
+
+ /* Second return value is in r4 */
+ break;
+ case EV_HCALL_TOKEN(EV_IDLE):
+ r = EV_SUCCESS;
+ kvm_vcpu_block(vcpu);
+ clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
+ break;
+ default:
+ r = EV_UNIMPLEMENTED;
+ break;
+ }
+
+ kvmppc_set_gpr(vcpu, 4, r2);
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(kvmppc_kvm_pv);
+
+int kvmppc_sanity_check(struct kvm_vcpu *vcpu)
+{
+ int r = false;
+
+ /* We have to know what CPU to virtualize */
+ if (!vcpu->arch.pvr)
+ goto out;
+
+ /* PAPR only works with book3s_64 */
+ if ((vcpu->arch.cpu_type != KVM_CPU_3S_64) && vcpu->arch.papr_enabled)
+ goto out;
+
+ /* HV KVM can only do PAPR mode for now */
+ if (!vcpu->arch.papr_enabled && is_kvmppc_hv_enabled(vcpu->kvm))
+ goto out;
+
+#ifdef CONFIG_KVM_BOOKE_HV
+ if (!cpu_has_feature(CPU_FTR_EMB_HV))
+ goto out;
+#endif
+
+ r = true;
+
+out:
+ vcpu->arch.sane = r;
+ return r ? 0 : -EINVAL;
+}
+EXPORT_SYMBOL_GPL(kvmppc_sanity_check);
+
+int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu)
+{
+ enum emulation_result er;
+ int r;
+
+ er = kvmppc_emulate_loadstore(vcpu);
+ switch (er) {
+ case EMULATE_DONE:
+ /* Future optimization: only reload non-volatiles if they were
+ * actually modified. */
+ r = RESUME_GUEST_NV;
+ break;
+ case EMULATE_AGAIN:
+ r = RESUME_GUEST;
+ break;
+ case EMULATE_DO_MMIO:
+ run->exit_reason = KVM_EXIT_MMIO;
+ /* We must reload nonvolatiles because "update" load/store
+ * instructions modify register state. */
+ /* Future optimization: only reload non-volatiles if they were
+ * actually modified. */
+ r = RESUME_HOST_NV;
+ break;
+ case EMULATE_FAIL:
+ {
+ u32 last_inst;
+
+ kvmppc_get_last_inst(vcpu, INST_GENERIC, &last_inst);
+ /* XXX Deliver Program interrupt to guest. */
+ pr_emerg("%s: emulation failed (%08x)\n", __func__, last_inst);
+ r = RESUME_HOST;
+ break;
+ }
+ default:
+ WARN_ON(1);
+ r = RESUME_GUEST;
+ }
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(kvmppc_emulate_mmio);
+
+int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
+ bool data)
+{
+ ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM & PAGE_MASK;
+ struct kvmppc_pte pte;
+ int r;
+
+ vcpu->stat.st++;
+
+ r = kvmppc_xlate(vcpu, *eaddr, data ? XLATE_DATA : XLATE_INST,
+ XLATE_WRITE, &pte);
+ if (r < 0)
+ return r;
+
+ *eaddr = pte.raddr;
+
+ if (!pte.may_write)
+ return -EPERM;
+
+ /* Magic page override */
+ if (kvmppc_supports_magic_page(vcpu) && mp_pa &&
+ ((pte.raddr & KVM_PAM & PAGE_MASK) == mp_pa) &&
+ !(kvmppc_get_msr(vcpu) & MSR_PR)) {
+ void *magic = vcpu->arch.shared;
+ magic += pte.eaddr & 0xfff;
+ memcpy(magic, ptr, size);
+ return EMULATE_DONE;
+ }
+
+ if (kvm_write_guest(vcpu->kvm, pte.raddr, ptr, size))
+ return EMULATE_DO_MMIO;
+
+ return EMULATE_DONE;
+}
+EXPORT_SYMBOL_GPL(kvmppc_st);
+
+int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
+ bool data)
+{
+ ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM & PAGE_MASK;
+ struct kvmppc_pte pte;
+ int rc;
+
+ vcpu->stat.ld++;
+
+ rc = kvmppc_xlate(vcpu, *eaddr, data ? XLATE_DATA : XLATE_INST,
+ XLATE_READ, &pte);
+ if (rc)
+ return rc;
+
+ *eaddr = pte.raddr;
+
+ if (!pte.may_read)
+ return -EPERM;
+
+ if (!data && !pte.may_execute)
+ return -ENOEXEC;
+
+ /* Magic page override */
+ if (kvmppc_supports_magic_page(vcpu) && mp_pa &&
+ ((pte.raddr & KVM_PAM & PAGE_MASK) == mp_pa) &&
+ !(kvmppc_get_msr(vcpu) & MSR_PR)) {
+ void *magic = vcpu->arch.shared;
+ magic += pte.eaddr & 0xfff;
+ memcpy(ptr, magic, size);
+ return EMULATE_DONE;
+ }
+
+ if (kvm_read_guest(vcpu->kvm, pte.raddr, ptr, size))
+ return EMULATE_DO_MMIO;
+
+ return EMULATE_DONE;
+}
+EXPORT_SYMBOL_GPL(kvmppc_ld);
+
+int kvm_arch_hardware_enable(void)
+{
+ return 0;
+}
+
+int kvm_arch_hardware_setup(void)
+{
+ return 0;
+}
+
+void kvm_arch_check_processor_compat(void *rtn)
+{
+ *(int *)rtn = kvmppc_core_check_processor_compat();
+}
+
+int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
+{
+ struct kvmppc_ops *kvm_ops = NULL;
+ /*
+ * if we have both HV and PR enabled, default is HV
+ */
+ if (type == 0) {
+ if (kvmppc_hv_ops)
+ kvm_ops = kvmppc_hv_ops;
+ else
+ kvm_ops = kvmppc_pr_ops;
+ if (!kvm_ops)
+ goto err_out;
+ } else if (type == KVM_VM_PPC_HV) {
+ if (!kvmppc_hv_ops)
+ goto err_out;
+ kvm_ops = kvmppc_hv_ops;
+ } else if (type == KVM_VM_PPC_PR) {
+ if (!kvmppc_pr_ops)
+ goto err_out;
+ kvm_ops = kvmppc_pr_ops;
+ } else
+ goto err_out;
+
+ if (kvm_ops->owner && !try_module_get(kvm_ops->owner))
+ return -ENOENT;
+
+ kvm->arch.kvm_ops = kvm_ops;
+ return kvmppc_core_init_vm(kvm);
+err_out:
+ return -EINVAL;
+}
+
+void kvm_arch_destroy_vm(struct kvm *kvm)
+{
+ unsigned int i;
+ struct kvm_vcpu *vcpu;
+
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ kvm_arch_vcpu_free(vcpu);
+
+ mutex_lock(&kvm->lock);
+ for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
+ kvm->vcpus[i] = NULL;
+
+ atomic_set(&kvm->online_vcpus, 0);
+
+ kvmppc_core_destroy_vm(kvm);
+
+ mutex_unlock(&kvm->lock);
+
+ /* drop the module reference */
+ module_put(kvm->arch.kvm_ops->owner);
+}
+
+int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
+{
+ int r;
+ /* Assume we're using HV mode when the HV module is loaded */
+ int hv_enabled = kvmppc_hv_ops ? 1 : 0;
+
+ if (kvm) {
+ /*
+ * Hooray - we know which VM type we're running on. Depend on
+ * that rather than the guess above.
+ */
+ hv_enabled = is_kvmppc_hv_enabled(kvm);
+ }
+
+ switch (ext) {
+#ifdef CONFIG_BOOKE
+ case KVM_CAP_PPC_BOOKE_SREGS:
+ case KVM_CAP_PPC_BOOKE_WATCHDOG:
+ case KVM_CAP_PPC_EPR:
+#else
+ case KVM_CAP_PPC_SEGSTATE:
+ case KVM_CAP_PPC_HIOR:
+ case KVM_CAP_PPC_PAPR:
+#endif
+ case KVM_CAP_PPC_UNSET_IRQ:
+ case KVM_CAP_PPC_IRQ_LEVEL:
+ case KVM_CAP_ENABLE_CAP:
+ case KVM_CAP_ENABLE_CAP_VM:
+ case KVM_CAP_ONE_REG:
+ case KVM_CAP_IOEVENTFD:
+ case KVM_CAP_DEVICE_CTRL:
+ r = 1;
+ break;
+ case KVM_CAP_PPC_PAIRED_SINGLES:
+ case KVM_CAP_PPC_OSI:
+ case KVM_CAP_PPC_GET_PVINFO:
+#if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
+ case KVM_CAP_SW_TLB:
+#endif
+ /* We support this only for PR */
+ r = !hv_enabled;
+ break;
+#ifdef CONFIG_KVM_MMIO
+ case KVM_CAP_COALESCED_MMIO:
+ r = KVM_COALESCED_MMIO_PAGE_OFFSET;
+ break;
+#endif
+#ifdef CONFIG_KVM_MPIC
+ case KVM_CAP_IRQ_MPIC:
+ r = 1;
+ break;
+#endif
+
+#ifdef CONFIG_PPC_BOOK3S_64
+ case KVM_CAP_SPAPR_TCE:
+ case KVM_CAP_PPC_ALLOC_HTAB:
+ case KVM_CAP_PPC_RTAS:
+ case KVM_CAP_PPC_FIXUP_HCALL:
+ case KVM_CAP_PPC_ENABLE_HCALL:
+#ifdef CONFIG_KVM_XICS
+ case KVM_CAP_IRQ_XICS:
+#endif
+ r = 1;
+ break;
+#endif /* CONFIG_PPC_BOOK3S_64 */
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ case KVM_CAP_PPC_SMT:
+ if (hv_enabled)
+ r = threads_per_subcore;
+ else
+ r = 0;
+ break;
+ case KVM_CAP_PPC_RMA:
+ r = 0;
+ break;
+ case KVM_CAP_PPC_HWRNG:
+ r = kvmppc_hwrng_present();
+ break;
+#endif
+ case KVM_CAP_SYNC_MMU:
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ r = hv_enabled;
+#elif defined(KVM_ARCH_WANT_MMU_NOTIFIER)
+ r = 1;
+#else
+ r = 0;
+#endif
+ break;
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ case KVM_CAP_PPC_HTAB_FD:
+ r = hv_enabled;
+ break;
+#endif
+ case KVM_CAP_NR_VCPUS:
+ /*
+ * Recommending a number of CPUs is somewhat arbitrary; we
+ * return the number of present CPUs for -HV (since a host
+ * will have secondary threads "offline"), and for other KVM
+ * implementations just count online CPUs.
+ */
+ if (hv_enabled)
+ r = num_present_cpus();
+ else
+ r = num_online_cpus();
+ break;
+ case KVM_CAP_MAX_VCPUS:
+ r = KVM_MAX_VCPUS;
+ break;
+#ifdef CONFIG_PPC_BOOK3S_64
+ case KVM_CAP_PPC_GET_SMMU_INFO:
+ r = 1;
+ break;
+#endif
+ default:
+ r = 0;
+ break;
+ }
+ return r;
+
+}
+
+long kvm_arch_dev_ioctl(struct file *filp,
+ unsigned int ioctl, unsigned long arg)
+{
+ return -EINVAL;
+}
+
+void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
+ struct kvm_memory_slot *dont)
+{
+ kvmppc_core_free_memslot(kvm, free, dont);
+}
+
+int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
+ unsigned long npages)
+{
+ return kvmppc_core_create_memslot(kvm, slot, npages);
+}
+
+int kvm_arch_prepare_memory_region(struct kvm *kvm,
+ struct kvm_memory_slot *memslot,
+ struct kvm_userspace_memory_region *mem,
+ enum kvm_mr_change change)
+{
+ return kvmppc_core_prepare_memory_region(kvm, memslot, mem);
+}
+
+void kvm_arch_commit_memory_region(struct kvm *kvm,
+ struct kvm_userspace_memory_region *mem,
+ const struct kvm_memory_slot *old,
+ enum kvm_mr_change change)
+{
+ kvmppc_core_commit_memory_region(kvm, mem, old);
+}
+
+void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
+ struct kvm_memory_slot *slot)
+{
+ kvmppc_core_flush_memslot(kvm, slot);
+}
+
+struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
+{
+ struct kvm_vcpu *vcpu;
+ vcpu = kvmppc_core_vcpu_create(kvm, id);
+ if (!IS_ERR(vcpu)) {
+ vcpu->arch.wqp = &vcpu->wq;
+ kvmppc_create_vcpu_debugfs(vcpu, id);
+ }
+ return vcpu;
+}
+
+void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
+{
+}
+
+void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
+{
+ /* Make sure we're not using the vcpu anymore */
+ hrtimer_cancel(&vcpu->arch.dec_timer);
+
+ kvmppc_remove_vcpu_debugfs(vcpu);
+
+ switch (vcpu->arch.irq_type) {
+ case KVMPPC_IRQ_MPIC:
+ kvmppc_mpic_disconnect_vcpu(vcpu->arch.mpic, vcpu);
+ break;
+ case KVMPPC_IRQ_XICS:
+ kvmppc_xics_free_icp(vcpu);
+ break;
+ }
+
+ kvmppc_core_vcpu_free(vcpu);
+}
+
+void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
+{
+ kvm_arch_vcpu_free(vcpu);
+}
+
+int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
+{
+ return kvmppc_core_pending_dec(vcpu);
+}
+
+enum hrtimer_restart kvmppc_decrementer_wakeup(struct hrtimer *timer)
+{
+ struct kvm_vcpu *vcpu;
+
+ vcpu = container_of(timer, struct kvm_vcpu, arch.dec_timer);
+ kvmppc_decrementer_func(vcpu);
+
+ return HRTIMER_NORESTART;
+}
+
+int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
+{
+ int ret;
+
+ hrtimer_init(&vcpu->arch.dec_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
+ vcpu->arch.dec_timer.function = kvmppc_decrementer_wakeup;
+ vcpu->arch.dec_expires = ~(u64)0;
+
+#ifdef CONFIG_KVM_EXIT_TIMING
+ mutex_init(&vcpu->arch.exit_timing_lock);
+#endif
+ ret = kvmppc_subarch_vcpu_init(vcpu);
+ return ret;
+}
+
+void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
+{
+ kvmppc_mmu_destroy(vcpu);
+ kvmppc_subarch_vcpu_uninit(vcpu);
+}
+
+void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+{
+#ifdef CONFIG_BOOKE
+ /*
+ * vrsave (formerly usprg0) isn't used by Linux, but may
+ * be used by the guest.
+ *
+ * On non-booke this is associated with Altivec and
+ * is handled by code in book3s.c.
+ */
+ mtspr(SPRN_VRSAVE, vcpu->arch.vrsave);
+#endif
+ kvmppc_core_vcpu_load(vcpu, cpu);
+}
+
+void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
+{
+ kvmppc_core_vcpu_put(vcpu);
+#ifdef CONFIG_BOOKE
+ vcpu->arch.vrsave = mfspr(SPRN_VRSAVE);
+#endif
+}
+
+static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
+ struct kvm_run *run)
+{
+ u64 uninitialized_var(gpr);
+
+ if (run->mmio.len > sizeof(gpr)) {
+ printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len);
+ return;
+ }
+
+ if (!vcpu->arch.mmio_host_swabbed) {
+ switch (run->mmio.len) {
+ case 8: gpr = *(u64 *)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 {
+ switch (run->mmio.len) {
+ case 8: gpr = swab64(*(u64 *)run->mmio.data); break;
+ case 4: gpr = swab32(*(u32 *)run->mmio.data); break;
+ case 2: gpr = swab16(*(u16 *)run->mmio.data); break;
+ case 1: gpr = *(u8 *)run->mmio.data; break;
+ }
+ }
+
+ if (vcpu->arch.mmio_sign_extend) {
+ switch (run->mmio.len) {
+#ifdef CONFIG_PPC64
+ case 4:
+ gpr = (s64)(s32)gpr;
+ break;
+#endif
+ case 2:
+ gpr = (s64)(s16)gpr;
+ break;
+ case 1:
+ gpr = (s64)(s8)gpr;
+ break;
+ }
+ }
+
+ kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
+
+ switch (vcpu->arch.io_gpr & KVM_MMIO_REG_EXT_MASK) {
+ case KVM_MMIO_REG_GPR:
+ kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
+ break;
+ case KVM_MMIO_REG_FPR:
+ VCPU_FPR(vcpu, vcpu->arch.io_gpr & KVM_MMIO_REG_MASK) = gpr;
+ break;
+#ifdef CONFIG_PPC_BOOK3S
+ case KVM_MMIO_REG_QPR:
+ vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
+ break;
+ case KVM_MMIO_REG_FQPR:
+ VCPU_FPR(vcpu, vcpu->arch.io_gpr & KVM_MMIO_REG_MASK) = gpr;
+ vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
+ break;
+#endif
+ default:
+ BUG();
+ }
+}
+
+int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int rt, unsigned int bytes,
+ int is_default_endian)
+{
+ int idx, ret;
+ bool host_swabbed;
+
+ /* Pity C doesn't have a logical XOR operator */
+ if (kvmppc_need_byteswap(vcpu)) {
+ host_swabbed = is_default_endian;
+ } else {
+ host_swabbed = !is_default_endian;
+ }
+
+ if (bytes > sizeof(run->mmio.data)) {
+ printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
+ run->mmio.len);
+ }
+
+ run->mmio.phys_addr = vcpu->arch.paddr_accessed;
+ run->mmio.len = bytes;
+ run->mmio.is_write = 0;
+
+ vcpu->arch.io_gpr = rt;
+ vcpu->arch.mmio_host_swabbed = host_swabbed;
+ vcpu->mmio_needed = 1;
+ vcpu->mmio_is_write = 0;
+ vcpu->arch.mmio_sign_extend = 0;
+
+ idx = srcu_read_lock(&vcpu->kvm->srcu);
+
+ ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, run->mmio.phys_addr,
+ bytes, &run->mmio.data);
+
+ srcu_read_unlock(&vcpu->kvm->srcu, idx);
+
+ if (!ret) {
+ kvmppc_complete_mmio_load(vcpu, run);
+ vcpu->mmio_needed = 0;
+ return EMULATE_DONE;
+ }
+
+ return EMULATE_DO_MMIO;
+}
+EXPORT_SYMBOL_GPL(kvmppc_handle_load);
+
+/* Same as above, but sign extends */
+int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int rt, unsigned int bytes,
+ int is_default_endian)
+{
+ int r;
+
+ vcpu->arch.mmio_sign_extend = 1;
+ r = kvmppc_handle_load(run, vcpu, rt, bytes, is_default_endian);
+
+ return r;
+}
+
+int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ u64 val, unsigned int bytes, int is_default_endian)
+{
+ void *data = run->mmio.data;
+ int idx, ret;
+ bool host_swabbed;
+
+ /* Pity C doesn't have a logical XOR operator */
+ if (kvmppc_need_byteswap(vcpu)) {
+ host_swabbed = is_default_endian;
+ } else {
+ host_swabbed = !is_default_endian;
+ }
+
+ if (bytes > sizeof(run->mmio.data)) {
+ printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
+ run->mmio.len);
+ }
+
+ run->mmio.phys_addr = vcpu->arch.paddr_accessed;
+ run->mmio.len = bytes;
+ run->mmio.is_write = 1;
+ vcpu->mmio_needed = 1;
+ vcpu->mmio_is_write = 1;
+
+ /* Store the value at the lowest bytes in 'data'. */
+ if (!host_swabbed) {
+ switch (bytes) {
+ case 8: *(u64 *)data = val; break;
+ case 4: *(u32 *)data = val; break;
+ case 2: *(u16 *)data = val; break;
+ case 1: *(u8 *)data = val; break;
+ }
+ } else {
+ switch (bytes) {
+ case 8: *(u64 *)data = swab64(val); break;
+ case 4: *(u32 *)data = swab32(val); break;
+ case 2: *(u16 *)data = swab16(val); break;
+ case 1: *(u8 *)data = val; break;
+ }
+ }
+
+ idx = srcu_read_lock(&vcpu->kvm->srcu);
+
+ ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, run->mmio.phys_addr,
+ bytes, &run->mmio.data);
+
+ srcu_read_unlock(&vcpu->kvm->srcu, idx);
+
+ if (!ret) {
+ vcpu->mmio_needed = 0;
+ return EMULATE_DONE;
+ }
+
+ return EMULATE_DO_MMIO;
+}
+EXPORT_SYMBOL_GPL(kvmppc_handle_store);
+
+int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
+{
+ int r = 0;
+ union kvmppc_one_reg val;
+ int size;
+
+ size = one_reg_size(reg->id);
+ if (size > sizeof(val))
+ return -EINVAL;
+
+ r = kvmppc_get_one_reg(vcpu, reg->id, &val);
+ if (r == -EINVAL) {
+ r = 0;
+ switch (reg->id) {
+#ifdef CONFIG_ALTIVEC
+ case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
+ break;
+ case KVM_REG_PPC_VSCR:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val);
+ break;
+ case KVM_REG_PPC_VRSAVE:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ vcpu->arch.vrsave = set_reg_val(reg->id, val);
+ break;
+#endif /* CONFIG_ALTIVEC */
+ default:
+ r = -EINVAL;
+ break;
+ }
+ }
+
+ if (r)
+ return r;
+
+ if (copy_to_user((char __user *)(unsigned long)reg->addr, &val, size))
+ r = -EFAULT;
+
+ return r;
+}
+
+int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
+{
+ int r;
+ union kvmppc_one_reg val;
+ int size;
+
+ size = one_reg_size(reg->id);
+ if (size > sizeof(val))
+ return -EINVAL;
+
+ if (copy_from_user(&val, (char __user *)(unsigned long)reg->addr, size))
+ return -EFAULT;
+
+ r = kvmppc_set_one_reg(vcpu, reg->id, &val);
+ if (r == -EINVAL) {
+ r = 0;
+ switch (reg->id) {
+#ifdef CONFIG_ALTIVEC
+ case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0];
+ break;
+ case KVM_REG_PPC_VSCR:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]);
+ break;
+ case KVM_REG_PPC_VRSAVE:
+ val = get_reg_val(reg->id, vcpu->arch.vrsave);
+ break;
+#endif /* CONFIG_ALTIVEC */
+ default:
+ r = -EINVAL;
+ break;
+ }
+ }
+
+ return r;
+}
+
+int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+ int r;
+ sigset_t sigsaved;
+
+ if (vcpu->sigset_active)
+ sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
+
+ if (vcpu->mmio_needed) {
+ if (!vcpu->mmio_is_write)
+ kvmppc_complete_mmio_load(vcpu, run);
+ vcpu->mmio_needed = 0;
+ } else if (vcpu->arch.osi_needed) {
+ u64 *gprs = run->osi.gprs;
+ int i;
+
+ for (i = 0; i < 32; i++)
+ kvmppc_set_gpr(vcpu, i, gprs[i]);
+ vcpu->arch.osi_needed = 0;
+ } else if (vcpu->arch.hcall_needed) {
+ int i;
+
+ kvmppc_set_gpr(vcpu, 3, run->papr_hcall.ret);
+ for (i = 0; i < 9; ++i)
+ kvmppc_set_gpr(vcpu, 4 + i, run->papr_hcall.args[i]);
+ vcpu->arch.hcall_needed = 0;
+#ifdef CONFIG_BOOKE
+ } else if (vcpu->arch.epr_needed) {
+ kvmppc_set_epr(vcpu, run->epr.epr);
+ vcpu->arch.epr_needed = 0;
+#endif
+ }
+
+ r = kvmppc_vcpu_run(run, vcpu);
+
+ if (vcpu->sigset_active)
+ sigprocmask(SIG_SETMASK, &sigsaved, NULL);
+
+ return r;
+}
+
+int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
+{
+ if (irq->irq == KVM_INTERRUPT_UNSET) {
+ kvmppc_core_dequeue_external(vcpu);
+ return 0;
+ }
+
+ kvmppc_core_queue_external(vcpu, irq);
+
+ kvm_vcpu_kick(vcpu);
+
+ return 0;
+}
+
+static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
+ struct kvm_enable_cap *cap)
+{
+ int r;
+
+ if (cap->flags)
+ return -EINVAL;
+
+ switch (cap->cap) {
+ case KVM_CAP_PPC_OSI:
+ r = 0;
+ vcpu->arch.osi_enabled = true;
+ break;
+ case KVM_CAP_PPC_PAPR:
+ r = 0;
+ vcpu->arch.papr_enabled = true;
+ break;
+ case KVM_CAP_PPC_EPR:
+ r = 0;
+ if (cap->args[0])
+ vcpu->arch.epr_flags |= KVMPPC_EPR_USER;
+ else
+ vcpu->arch.epr_flags &= ~KVMPPC_EPR_USER;
+ break;
+#ifdef CONFIG_BOOKE
+ case KVM_CAP_PPC_BOOKE_WATCHDOG:
+ r = 0;
+ vcpu->arch.watchdog_enabled = true;
+ break;
+#endif
+#if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
+ case KVM_CAP_SW_TLB: {
+ struct kvm_config_tlb cfg;
+ void __user *user_ptr = (void __user *)(uintptr_t)cap->args[0];
+
+ r = -EFAULT;
+ if (copy_from_user(&cfg, user_ptr, sizeof(cfg)))
+ break;
+
+ r = kvm_vcpu_ioctl_config_tlb(vcpu, &cfg);
+ break;
+ }
+#endif
+#ifdef CONFIG_KVM_MPIC
+ case KVM_CAP_IRQ_MPIC: {
+ struct fd f;
+ struct kvm_device *dev;
+
+ r = -EBADF;
+ f = fdget(cap->args[0]);
+ if (!f.file)
+ break;
+
+ r = -EPERM;
+ dev = kvm_device_from_filp(f.file);
+ if (dev)
+ r = kvmppc_mpic_connect_vcpu(dev, vcpu, cap->args[1]);
+
+ fdput(f);
+ break;
+ }
+#endif
+#ifdef CONFIG_KVM_XICS
+ case KVM_CAP_IRQ_XICS: {
+ struct fd f;
+ struct kvm_device *dev;
+
+ r = -EBADF;
+ f = fdget(cap->args[0]);
+ if (!f.file)
+ break;
+
+ r = -EPERM;
+ dev = kvm_device_from_filp(f.file);
+ if (dev)
+ r = kvmppc_xics_connect_vcpu(dev, vcpu, cap->args[1]);
+
+ fdput(f);
+ break;
+ }
+#endif /* CONFIG_KVM_XICS */
+ default:
+ r = -EINVAL;
+ break;
+ }
+
+ if (!r)
+ r = kvmppc_sanity_check(vcpu);
+
+ return r;
+}
+
+int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
+ struct kvm_mp_state *mp_state)
+{
+ return -EINVAL;
+}
+
+int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
+ struct kvm_mp_state *mp_state)
+{
+ return -EINVAL;
+}
+
+long kvm_arch_vcpu_ioctl(struct file *filp,
+ unsigned int ioctl, unsigned long arg)
+{
+ struct kvm_vcpu *vcpu = filp->private_data;
+ void __user *argp = (void __user *)arg;
+ long r;
+
+ switch (ioctl) {
+ case KVM_INTERRUPT: {
+ struct kvm_interrupt irq;
+ r = -EFAULT;
+ if (copy_from_user(&irq, argp, sizeof(irq)))
+ goto out;
+ r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
+ goto out;
+ }
+
+ case KVM_ENABLE_CAP:
+ {
+ struct kvm_enable_cap cap;
+ r = -EFAULT;
+ if (copy_from_user(&cap, argp, sizeof(cap)))
+ goto out;
+ r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap);
+ break;
+ }
+
+ case KVM_SET_ONE_REG:
+ case KVM_GET_ONE_REG:
+ {
+ struct kvm_one_reg reg;
+ r = -EFAULT;
+ if (copy_from_user(®, argp, sizeof(reg)))
+ goto out;
+ if (ioctl == KVM_SET_ONE_REG)
+ r = kvm_vcpu_ioctl_set_one_reg(vcpu, ®);
+ else
+ r = kvm_vcpu_ioctl_get_one_reg(vcpu, ®);
+ break;
+ }
+
+#if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
+ case KVM_DIRTY_TLB: {
+ struct kvm_dirty_tlb dirty;
+ r = -EFAULT;
+ if (copy_from_user(&dirty, argp, sizeof(dirty)))
+ goto out;
+ r = kvm_vcpu_ioctl_dirty_tlb(vcpu, &dirty);
+ break;
+ }
+#endif
+ default:
+ r = -EINVAL;
+ }
+
+out:
+ return r;
+}
+
+int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
+{
+ return VM_FAULT_SIGBUS;
+}
+
+static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo)
+{
+ u32 inst_nop = 0x60000000;
+#ifdef CONFIG_KVM_BOOKE_HV
+ u32 inst_sc1 = 0x44000022;
+ pvinfo->hcall[0] = cpu_to_be32(inst_sc1);
+ pvinfo->hcall[1] = cpu_to_be32(inst_nop);
+ pvinfo->hcall[2] = cpu_to_be32(inst_nop);
+ pvinfo->hcall[3] = cpu_to_be32(inst_nop);
+#else
+ u32 inst_lis = 0x3c000000;
+ u32 inst_ori = 0x60000000;
+ u32 inst_sc = 0x44000002;
+ u32 inst_imm_mask = 0xffff;
+
+ /*
+ * The hypercall to get into KVM from within guest context is as
+ * follows:
+ *
+ * lis r0, r0, KVM_SC_MAGIC_R0@h
+ * ori r0, KVM_SC_MAGIC_R0@l
+ * sc
+ * nop
+ */
+ pvinfo->hcall[0] = cpu_to_be32(inst_lis | ((KVM_SC_MAGIC_R0 >> 16) & inst_imm_mask));
+ pvinfo->hcall[1] = cpu_to_be32(inst_ori | (KVM_SC_MAGIC_R0 & inst_imm_mask));
+ pvinfo->hcall[2] = cpu_to_be32(inst_sc);
+ pvinfo->hcall[3] = cpu_to_be32(inst_nop);
+#endif
+
+ pvinfo->flags = KVM_PPC_PVINFO_FLAGS_EV_IDLE;
+
+ return 0;
+}
+
+int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_event,
+ bool line_status)
+{
+ if (!irqchip_in_kernel(kvm))
+ return -ENXIO;
+
+ irq_event->status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
+ irq_event->irq, irq_event->level,
+ line_status);
+ return 0;
+}
+
+
+static int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
+ struct kvm_enable_cap *cap)
+{
+ int r;
+
+ if (cap->flags)
+ return -EINVAL;
+
+ switch (cap->cap) {
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+ case KVM_CAP_PPC_ENABLE_HCALL: {
+ unsigned long hcall = cap->args[0];
+
+ r = -EINVAL;
+ if (hcall > MAX_HCALL_OPCODE || (hcall & 3) ||
+ cap->args[1] > 1)
+ break;
+ if (!kvmppc_book3s_hcall_implemented(kvm, hcall))
+ break;
+ if (cap->args[1])
+ set_bit(hcall / 4, kvm->arch.enabled_hcalls);
+ else
+ clear_bit(hcall / 4, kvm->arch.enabled_hcalls);
+ r = 0;
+ break;
+ }
+#endif
+ default:
+ r = -EINVAL;
+ break;
+ }
+
+ return r;
+}
+
+long kvm_arch_vm_ioctl(struct file *filp,
+ unsigned int ioctl, unsigned long arg)
+{
+ struct kvm *kvm __maybe_unused = filp->private_data;
+ void __user *argp = (void __user *)arg;
+ long r;
+
+ switch (ioctl) {
+ case KVM_PPC_GET_PVINFO: {
+ struct kvm_ppc_pvinfo pvinfo;
+ memset(&pvinfo, 0, sizeof(pvinfo));
+ r = kvm_vm_ioctl_get_pvinfo(&pvinfo);
+ if (copy_to_user(argp, &pvinfo, sizeof(pvinfo))) {
+ r = -EFAULT;
+ goto out;
+ }
+
+ break;
+ }
+ case KVM_ENABLE_CAP:
+ {
+ struct kvm_enable_cap cap;
+ r = -EFAULT;
+ if (copy_from_user(&cap, argp, sizeof(cap)))
+ goto out;
+ r = kvm_vm_ioctl_enable_cap(kvm, &cap);
+ break;
+ }
+#ifdef CONFIG_PPC_BOOK3S_64
+ case KVM_CREATE_SPAPR_TCE: {
+ struct kvm_create_spapr_tce create_tce;
+
+ r = -EFAULT;
+ if (copy_from_user(&create_tce, argp, sizeof(create_tce)))
+ goto out;
+ r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce);
+ goto out;
+ }
+ case KVM_PPC_GET_SMMU_INFO: {
+ struct kvm_ppc_smmu_info info;
+ struct kvm *kvm = filp->private_data;
+
+ memset(&info, 0, sizeof(info));
+ r = kvm->arch.kvm_ops->get_smmu_info(kvm, &info);
+ if (r >= 0 && copy_to_user(argp, &info, sizeof(info)))
+ r = -EFAULT;
+ break;
+ }
+ case KVM_PPC_RTAS_DEFINE_TOKEN: {
+ struct kvm *kvm = filp->private_data;
+
+ r = kvm_vm_ioctl_rtas_define_token(kvm, argp);
+ break;
+ }
+ default: {
+ struct kvm *kvm = filp->private_data;
+ r = kvm->arch.kvm_ops->arch_vm_ioctl(filp, ioctl, arg);
+ }
+#else /* CONFIG_PPC_BOOK3S_64 */
+ default:
+ r = -ENOTTY;
+#endif
+ }
+out:
+ return r;
+}
+
+static unsigned long lpid_inuse[BITS_TO_LONGS(KVMPPC_NR_LPIDS)];
+static unsigned long nr_lpids;
+
+long kvmppc_alloc_lpid(void)
+{
+ long lpid;
+
+ do {
+ lpid = find_first_zero_bit(lpid_inuse, KVMPPC_NR_LPIDS);
+ if (lpid >= nr_lpids) {
+ pr_err("%s: No LPIDs free\n", __func__);
+ return -ENOMEM;
+ }
+ } while (test_and_set_bit(lpid, lpid_inuse));
+
+ return lpid;
+}
+EXPORT_SYMBOL_GPL(kvmppc_alloc_lpid);
+
+void kvmppc_claim_lpid(long lpid)
+{
+ set_bit(lpid, lpid_inuse);
+}
+EXPORT_SYMBOL_GPL(kvmppc_claim_lpid);
+
+void kvmppc_free_lpid(long lpid)
+{
+ clear_bit(lpid, lpid_inuse);
+}
+EXPORT_SYMBOL_GPL(kvmppc_free_lpid);
+
+void kvmppc_init_lpid(unsigned long nr_lpids_param)
+{
+ nr_lpids = min_t(unsigned long, KVMPPC_NR_LPIDS, nr_lpids_param);
+ memset(lpid_inuse, 0, sizeof(lpid_inuse));
+}
+EXPORT_SYMBOL_GPL(kvmppc_init_lpid);
+
+int kvm_arch_init(void *opaque)
+{
+ return 0;
+}
+
+EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_ppc_instr);
Code Review / kvmfornfv.git / blobdiff