Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 1 | /* |
| 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. |
| 5 | * |
| 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. |
| 10 | * |
| 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. |
| 14 | * |
| 15 | * Copyright IBM Corp. 2007 |
| 16 | * |
| 17 | * Authors: Hollis Blanchard <hollisb@us.ibm.com> |
| 18 | * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> |
| 19 | */ |
| 20 | |
| 21 | #include <linux/errno.h> |
| 22 | #include <linux/err.h> |
| 23 | #include <linux/kvm_host.h> |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 24 | #include <linux/vmalloc.h> |
Alexander Graf | 544c676 | 2009-11-02 12:02:31 +0000 | [diff] [blame] | 25 | #include <linux/hrtimer.h> |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 26 | #include <linux/fs.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 27 | #include <linux/slab.h> |
Scott Wood | eb1e4f4 | 2013-04-12 14:08:47 +0000 | [diff] [blame] | 28 | #include <linux/file.h> |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 29 | #include <asm/cputable.h> |
| 30 | #include <asm/uaccess.h> |
| 31 | #include <asm/kvm_ppc.h> |
Hollis Blanchard | 83aae4a | 2008-07-25 13:54:52 -0500 | [diff] [blame] | 32 | #include <asm/tlbflush.h> |
Paul Mackerras | 371fefd | 2011-06-29 00:23:08 +0000 | [diff] [blame] | 33 | #include <asm/cputhreads.h> |
Alexander Graf | bd2be68 | 2012-08-13 01:04:19 +0200 | [diff] [blame] | 34 | #include <asm/irqflags.h> |
Hollis Blanchard | 73e75b4 | 2008-12-02 15:51:57 -0600 | [diff] [blame] | 35 | #include "timing.h" |
Alexander Graf | 5efdb4b | 2013-04-17 00:37:57 +0200 | [diff] [blame^] | 36 | #include "irq.h" |
Paul Mackerras | fad7b9b | 2008-12-23 14:57:26 +1100 | [diff] [blame] | 37 | #include "../mm/mmu_decl.h" |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 38 | |
Marcelo Tosatti | 46f43c6 | 2009-06-18 11:47:27 -0300 | [diff] [blame] | 39 | #define CREATE_TRACE_POINTS |
| 40 | #include "trace.h" |
| 41 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 42 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) |
| 43 | { |
Liu Yu-B13201 | 9202e07 | 2012-07-03 05:48:52 +0000 | [diff] [blame] | 44 | return !!(v->arch.pending_exceptions) || |
Scott Wood | dfd4d47 | 2011-11-17 12:39:59 +0000 | [diff] [blame] | 45 | v->requests; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 46 | } |
| 47 | |
Christoffer Dall | b6d3383 | 2012-03-08 16:44:24 -0500 | [diff] [blame] | 48 | int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu) |
| 49 | { |
| 50 | return 1; |
| 51 | } |
| 52 | |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 53 | #ifndef CONFIG_KVM_BOOK3S_64_HV |
| 54 | /* |
| 55 | * Common checks before entering the guest world. Call with interrupts |
| 56 | * disabled. |
| 57 | * |
Alexander Graf | 7ee7885 | 2012-08-13 12:44:41 +0200 | [diff] [blame] | 58 | * returns: |
| 59 | * |
| 60 | * == 1 if we're ready to go into guest state |
| 61 | * <= 0 if we need to go back to the host with return value |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 62 | */ |
| 63 | int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu) |
| 64 | { |
Alexander Graf | 7ee7885 | 2012-08-13 12:44:41 +0200 | [diff] [blame] | 65 | int r = 1; |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 66 | |
| 67 | WARN_ON_ONCE(!irqs_disabled()); |
| 68 | while (true) { |
| 69 | if (need_resched()) { |
| 70 | local_irq_enable(); |
| 71 | cond_resched(); |
| 72 | local_irq_disable(); |
| 73 | continue; |
| 74 | } |
| 75 | |
| 76 | if (signal_pending(current)) { |
Alexander Graf | 7ee7885 | 2012-08-13 12:44:41 +0200 | [diff] [blame] | 77 | kvmppc_account_exit(vcpu, SIGNAL_EXITS); |
| 78 | vcpu->run->exit_reason = KVM_EXIT_INTR; |
| 79 | r = -EINTR; |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 80 | break; |
| 81 | } |
| 82 | |
Scott Wood | 5bd1cf1 | 2012-08-22 15:03:50 +0000 | [diff] [blame] | 83 | vcpu->mode = IN_GUEST_MODE; |
| 84 | |
| 85 | /* |
| 86 | * Reading vcpu->requests must happen after setting vcpu->mode, |
| 87 | * so we don't miss a request because the requester sees |
| 88 | * OUTSIDE_GUEST_MODE and assumes we'll be checking requests |
| 89 | * before next entering the guest (and thus doesn't IPI). |
| 90 | */ |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 91 | smp_mb(); |
Scott Wood | 5bd1cf1 | 2012-08-22 15:03:50 +0000 | [diff] [blame] | 92 | |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 93 | if (vcpu->requests) { |
| 94 | /* Make sure we process requests preemptable */ |
| 95 | local_irq_enable(); |
| 96 | trace_kvm_check_requests(vcpu); |
Alexander Graf | 7c973a2 | 2012-08-13 12:50:35 +0200 | [diff] [blame] | 97 | r = kvmppc_core_check_requests(vcpu); |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 98 | local_irq_disable(); |
Alexander Graf | 7c973a2 | 2012-08-13 12:50:35 +0200 | [diff] [blame] | 99 | if (r > 0) |
| 100 | continue; |
| 101 | break; |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | if (kvmppc_core_prepare_to_enter(vcpu)) { |
| 105 | /* interrupts got enabled in between, so we |
| 106 | are back at square 1 */ |
| 107 | continue; |
| 108 | } |
| 109 | |
Alexander Graf | bd2be68 | 2012-08-13 01:04:19 +0200 | [diff] [blame] | 110 | #ifdef CONFIG_PPC64 |
| 111 | /* lazy EE magic */ |
| 112 | hard_irq_disable(); |
| 113 | if (lazy_irq_pending()) { |
| 114 | /* Got an interrupt in between, try again */ |
| 115 | local_irq_enable(); |
| 116 | local_irq_disable(); |
Alexander Graf | 3766a4c | 2012-08-13 01:24:01 +0200 | [diff] [blame] | 117 | kvm_guest_exit(); |
Alexander Graf | bd2be68 | 2012-08-13 01:04:19 +0200 | [diff] [blame] | 118 | continue; |
| 119 | } |
| 120 | |
| 121 | trace_hardirqs_on(); |
| 122 | #endif |
| 123 | |
Alexander Graf | 3766a4c | 2012-08-13 01:24:01 +0200 | [diff] [blame] | 124 | kvm_guest_enter(); |
Alexander Graf | 03d25c5 | 2012-08-10 12:28:50 +0200 | [diff] [blame] | 125 | break; |
| 126 | } |
| 127 | |
| 128 | return r; |
| 129 | } |
| 130 | #endif /* CONFIG_KVM_BOOK3S_64_HV */ |
| 131 | |
Alexander Graf | 2a342ed | 2010-07-29 14:47:48 +0200 | [diff] [blame] | 132 | int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) |
| 133 | { |
| 134 | int nr = kvmppc_get_gpr(vcpu, 11); |
| 135 | int r; |
| 136 | unsigned long __maybe_unused param1 = kvmppc_get_gpr(vcpu, 3); |
| 137 | unsigned long __maybe_unused param2 = kvmppc_get_gpr(vcpu, 4); |
| 138 | unsigned long __maybe_unused param3 = kvmppc_get_gpr(vcpu, 5); |
| 139 | unsigned long __maybe_unused param4 = kvmppc_get_gpr(vcpu, 6); |
| 140 | unsigned long r2 = 0; |
| 141 | |
| 142 | if (!(vcpu->arch.shared->msr & MSR_SF)) { |
| 143 | /* 32 bit mode */ |
| 144 | param1 &= 0xffffffff; |
| 145 | param2 &= 0xffffffff; |
| 146 | param3 &= 0xffffffff; |
| 147 | param4 &= 0xffffffff; |
| 148 | } |
| 149 | |
| 150 | switch (nr) { |
Stuart Yoder | fdcf8bd | 2012-07-03 05:48:50 +0000 | [diff] [blame] | 151 | case KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE): |
Alexander Graf | 5fc8740 | 2010-07-29 14:47:55 +0200 | [diff] [blame] | 152 | { |
| 153 | vcpu->arch.magic_page_pa = param1; |
| 154 | vcpu->arch.magic_page_ea = param2; |
| 155 | |
Scott Wood | b590497 | 2011-11-08 18:23:30 -0600 | [diff] [blame] | 156 | r2 = KVM_MAGIC_FEAT_SR | KVM_MAGIC_FEAT_MAS0_TO_SPRG7; |
Alexander Graf | 7508e16 | 2010-08-03 11:32:56 +0200 | [diff] [blame] | 157 | |
Stuart Yoder | fdcf8bd | 2012-07-03 05:48:50 +0000 | [diff] [blame] | 158 | r = EV_SUCCESS; |
Alexander Graf | 5fc8740 | 2010-07-29 14:47:55 +0200 | [diff] [blame] | 159 | break; |
| 160 | } |
Stuart Yoder | fdcf8bd | 2012-07-03 05:48:50 +0000 | [diff] [blame] | 161 | case KVM_HCALL_TOKEN(KVM_HC_FEATURES): |
| 162 | r = EV_SUCCESS; |
Alexander Graf | bf7ca4b | 2012-02-15 23:40:00 +0000 | [diff] [blame] | 163 | #if defined(CONFIG_PPC_BOOK3S) || defined(CONFIG_KVM_E500V2) |
Scott Wood | a4cd8b2 | 2011-06-14 18:34:41 -0500 | [diff] [blame] | 164 | /* XXX Missing magic page on 44x */ |
Alexander Graf | 5fc8740 | 2010-07-29 14:47:55 +0200 | [diff] [blame] | 165 | r2 |= (1 << KVM_FEATURE_MAGIC_PAGE); |
| 166 | #endif |
Alexander Graf | 2a342ed | 2010-07-29 14:47:48 +0200 | [diff] [blame] | 167 | |
| 168 | /* Second return value is in r4 */ |
Alexander Graf | 2a342ed | 2010-07-29 14:47:48 +0200 | [diff] [blame] | 169 | break; |
Liu Yu-B13201 | 9202e07 | 2012-07-03 05:48:52 +0000 | [diff] [blame] | 170 | case EV_HCALL_TOKEN(EV_IDLE): |
| 171 | r = EV_SUCCESS; |
| 172 | kvm_vcpu_block(vcpu); |
| 173 | clear_bit(KVM_REQ_UNHALT, &vcpu->requests); |
| 174 | break; |
Alexander Graf | 2a342ed | 2010-07-29 14:47:48 +0200 | [diff] [blame] | 175 | default: |
Stuart Yoder | fdcf8bd | 2012-07-03 05:48:50 +0000 | [diff] [blame] | 176 | r = EV_UNIMPLEMENTED; |
Alexander Graf | 2a342ed | 2010-07-29 14:47:48 +0200 | [diff] [blame] | 177 | break; |
| 178 | } |
| 179 | |
Alexander Graf | 7508e16 | 2010-08-03 11:32:56 +0200 | [diff] [blame] | 180 | kvmppc_set_gpr(vcpu, 4, r2); |
| 181 | |
Alexander Graf | 2a342ed | 2010-07-29 14:47:48 +0200 | [diff] [blame] | 182 | return r; |
| 183 | } |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 184 | |
Alexander Graf | af8f38b | 2011-08-10 13:57:08 +0200 | [diff] [blame] | 185 | int kvmppc_sanity_check(struct kvm_vcpu *vcpu) |
| 186 | { |
| 187 | int r = false; |
| 188 | |
| 189 | /* We have to know what CPU to virtualize */ |
| 190 | if (!vcpu->arch.pvr) |
| 191 | goto out; |
| 192 | |
| 193 | /* PAPR only works with book3s_64 */ |
| 194 | if ((vcpu->arch.cpu_type != KVM_CPU_3S_64) && vcpu->arch.papr_enabled) |
| 195 | goto out; |
| 196 | |
| 197 | #ifdef CONFIG_KVM_BOOK3S_64_HV |
| 198 | /* HV KVM can only do PAPR mode for now */ |
| 199 | if (!vcpu->arch.papr_enabled) |
| 200 | goto out; |
| 201 | #endif |
| 202 | |
Scott Wood | d30f6e4 | 2011-12-20 15:34:43 +0000 | [diff] [blame] | 203 | #ifdef CONFIG_KVM_BOOKE_HV |
| 204 | if (!cpu_has_feature(CPU_FTR_EMB_HV)) |
| 205 | goto out; |
| 206 | #endif |
| 207 | |
Alexander Graf | af8f38b | 2011-08-10 13:57:08 +0200 | [diff] [blame] | 208 | r = true; |
| 209 | |
| 210 | out: |
| 211 | vcpu->arch.sane = r; |
| 212 | return r ? 0 : -EINVAL; |
| 213 | } |
| 214 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 215 | int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu) |
| 216 | { |
| 217 | enum emulation_result er; |
| 218 | int r; |
| 219 | |
| 220 | er = kvmppc_emulate_instruction(run, vcpu); |
| 221 | switch (er) { |
| 222 | case EMULATE_DONE: |
| 223 | /* Future optimization: only reload non-volatiles if they were |
| 224 | * actually modified. */ |
| 225 | r = RESUME_GUEST_NV; |
| 226 | break; |
| 227 | case EMULATE_DO_MMIO: |
| 228 | run->exit_reason = KVM_EXIT_MMIO; |
| 229 | /* We must reload nonvolatiles because "update" load/store |
| 230 | * instructions modify register state. */ |
| 231 | /* Future optimization: only reload non-volatiles if they were |
| 232 | * actually modified. */ |
| 233 | r = RESUME_HOST_NV; |
| 234 | break; |
| 235 | case EMULATE_FAIL: |
| 236 | /* XXX Deliver Program interrupt to guest. */ |
| 237 | printk(KERN_EMERG "%s: emulation failed (%08x)\n", __func__, |
Alexander Graf | c7f38f4 | 2010-04-16 00:11:40 +0200 | [diff] [blame] | 238 | kvmppc_get_last_inst(vcpu)); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 239 | r = RESUME_HOST; |
| 240 | break; |
| 241 | default: |
Alexander Graf | 5a33169 | 2012-12-14 23:46:03 +0100 | [diff] [blame] | 242 | WARN_ON(1); |
| 243 | r = RESUME_GUEST; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | return r; |
| 247 | } |
| 248 | |
Alexander Graf | 10474ae | 2009-09-15 11:37:46 +0200 | [diff] [blame] | 249 | int kvm_arch_hardware_enable(void *garbage) |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 250 | { |
Alexander Graf | 10474ae | 2009-09-15 11:37:46 +0200 | [diff] [blame] | 251 | return 0; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | void kvm_arch_hardware_disable(void *garbage) |
| 255 | { |
| 256 | } |
| 257 | |
| 258 | int kvm_arch_hardware_setup(void) |
| 259 | { |
| 260 | return 0; |
| 261 | } |
| 262 | |
| 263 | void kvm_arch_hardware_unsetup(void) |
| 264 | { |
| 265 | } |
| 266 | |
| 267 | void kvm_arch_check_processor_compat(void *rtn) |
| 268 | { |
Hollis Blanchard | 9dd921c | 2008-11-05 09:36:14 -0600 | [diff] [blame] | 269 | *(int *)rtn = kvmppc_core_check_processor_compat(); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 270 | } |
| 271 | |
Carsten Otte | e08b963 | 2012-01-04 10:25:20 +0100 | [diff] [blame] | 272 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 273 | { |
Carsten Otte | e08b963 | 2012-01-04 10:25:20 +0100 | [diff] [blame] | 274 | if (type) |
| 275 | return -EINVAL; |
| 276 | |
Paul Mackerras | f9e0554 | 2011-06-29 00:19:22 +0000 | [diff] [blame] | 277 | return kvmppc_core_init_vm(kvm); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 278 | } |
| 279 | |
Jan Kiszka | d89f5ef | 2010-11-09 17:02:49 +0100 | [diff] [blame] | 280 | void kvm_arch_destroy_vm(struct kvm *kvm) |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 281 | { |
| 282 | unsigned int i; |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 283 | struct kvm_vcpu *vcpu; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 284 | |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 285 | kvm_for_each_vcpu(i, vcpu, kvm) |
| 286 | kvm_arch_vcpu_free(vcpu); |
| 287 | |
| 288 | mutex_lock(&kvm->lock); |
| 289 | for (i = 0; i < atomic_read(&kvm->online_vcpus); i++) |
| 290 | kvm->vcpus[i] = NULL; |
| 291 | |
| 292 | atomic_set(&kvm->online_vcpus, 0); |
Paul Mackerras | f9e0554 | 2011-06-29 00:19:22 +0000 | [diff] [blame] | 293 | |
| 294 | kvmppc_core_destroy_vm(kvm); |
| 295 | |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 296 | mutex_unlock(&kvm->lock); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 297 | } |
| 298 | |
Sheng Yang | ad8ba2c | 2009-01-06 10:03:02 +0800 | [diff] [blame] | 299 | void kvm_arch_sync_events(struct kvm *kvm) |
| 300 | { |
| 301 | } |
| 302 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 303 | int kvm_dev_ioctl_check_extension(long ext) |
| 304 | { |
| 305 | int r; |
| 306 | |
| 307 | switch (ext) { |
Scott Wood | 5ce941e | 2011-04-27 17:24:21 -0500 | [diff] [blame] | 308 | #ifdef CONFIG_BOOKE |
| 309 | case KVM_CAP_PPC_BOOKE_SREGS: |
Bharat Bhushan | f61c94b | 2012-08-08 20:38:19 +0000 | [diff] [blame] | 310 | case KVM_CAP_PPC_BOOKE_WATCHDOG: |
Alexander Graf | 1c81063 | 2013-01-04 18:12:48 +0100 | [diff] [blame] | 311 | case KVM_CAP_PPC_EPR: |
Scott Wood | 5ce941e | 2011-04-27 17:24:21 -0500 | [diff] [blame] | 312 | #else |
Alexander Graf | e15a113 | 2009-11-30 03:02:02 +0000 | [diff] [blame] | 313 | case KVM_CAP_PPC_SEGSTATE: |
Alexander Graf | 1022fc3 | 2011-09-14 21:45:23 +0200 | [diff] [blame] | 314 | case KVM_CAP_PPC_HIOR: |
Alexander Graf | 930b412 | 2011-08-08 17:29:42 +0200 | [diff] [blame] | 315 | case KVM_CAP_PPC_PAPR: |
Scott Wood | 5ce941e | 2011-04-27 17:24:21 -0500 | [diff] [blame] | 316 | #endif |
Alexander Graf | 1897876 | 2010-03-24 21:48:18 +0100 | [diff] [blame] | 317 | case KVM_CAP_PPC_UNSET_IRQ: |
Alexander Graf | 7b4203e | 2010-08-30 13:50:45 +0200 | [diff] [blame] | 318 | case KVM_CAP_PPC_IRQ_LEVEL: |
Alexander Graf | 71fbfd5 | 2010-03-24 21:48:29 +0100 | [diff] [blame] | 319 | case KVM_CAP_ENABLE_CAP: |
Alexander Graf | e24ed81 | 2011-09-14 10:02:41 +0200 | [diff] [blame] | 320 | case KVM_CAP_ONE_REG: |
Alexander Graf | 0e673fb | 2012-10-09 00:06:20 +0200 | [diff] [blame] | 321 | case KVM_CAP_IOEVENTFD: |
Scott Wood | 5df554a | 2013-04-12 14:08:46 +0000 | [diff] [blame] | 322 | case KVM_CAP_DEVICE_CTRL: |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 323 | r = 1; |
| 324 | break; |
| 325 | #ifndef CONFIG_KVM_BOOK3S_64_HV |
| 326 | case KVM_CAP_PPC_PAIRED_SINGLES: |
Alexander Graf | ad0a048 | 2010-03-24 21:48:30 +0100 | [diff] [blame] | 327 | case KVM_CAP_PPC_OSI: |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 328 | case KVM_CAP_PPC_GET_PVINFO: |
Alexander Graf | bf7ca4b | 2012-02-15 23:40:00 +0000 | [diff] [blame] | 329 | #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC) |
Scott Wood | dc83b8b | 2011-08-18 15:25:21 -0500 | [diff] [blame] | 330 | case KVM_CAP_SW_TLB: |
| 331 | #endif |
Scott Wood | eb1e4f4 | 2013-04-12 14:08:47 +0000 | [diff] [blame] | 332 | #ifdef CONFIG_KVM_MPIC |
| 333 | case KVM_CAP_IRQ_MPIC: |
| 334 | #endif |
Alexander Graf | e15a113 | 2009-11-30 03:02:02 +0000 | [diff] [blame] | 335 | r = 1; |
| 336 | break; |
Laurent Vivier | 588968b | 2008-05-30 16:05:56 +0200 | [diff] [blame] | 337 | case KVM_CAP_COALESCED_MMIO: |
| 338 | r = KVM_COALESCED_MMIO_PAGE_OFFSET; |
| 339 | break; |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 340 | #endif |
Benjamin Herrenschmidt | f31e65e | 2012-03-15 21:58:34 +0000 | [diff] [blame] | 341 | #ifdef CONFIG_PPC_BOOK3S_64 |
David Gibson | 54738c0 | 2011-06-29 00:22:41 +0000 | [diff] [blame] | 342 | case KVM_CAP_SPAPR_TCE: |
Paul Mackerras | 32fad28 | 2012-05-04 02:32:53 +0000 | [diff] [blame] | 343 | case KVM_CAP_PPC_ALLOC_HTAB: |
David Gibson | 54738c0 | 2011-06-29 00:22:41 +0000 | [diff] [blame] | 344 | r = 1; |
| 345 | break; |
Benjamin Herrenschmidt | f31e65e | 2012-03-15 21:58:34 +0000 | [diff] [blame] | 346 | #endif /* CONFIG_PPC_BOOK3S_64 */ |
| 347 | #ifdef CONFIG_KVM_BOOK3S_64_HV |
Paul Mackerras | 371fefd | 2011-06-29 00:23:08 +0000 | [diff] [blame] | 348 | case KVM_CAP_PPC_SMT: |
| 349 | r = threads_per_core; |
| 350 | break; |
Paul Mackerras | aa04b4c | 2011-06-29 00:25:44 +0000 | [diff] [blame] | 351 | case KVM_CAP_PPC_RMA: |
| 352 | r = 1; |
Paul Mackerras | 9e368f2 | 2011-06-29 00:40:08 +0000 | [diff] [blame] | 353 | /* PPC970 requires an RMA */ |
| 354 | if (cpu_has_feature(CPU_FTR_ARCH_201)) |
| 355 | r = 2; |
Paul Mackerras | aa04b4c | 2011-06-29 00:25:44 +0000 | [diff] [blame] | 356 | break; |
David Gibson | 54738c0 | 2011-06-29 00:22:41 +0000 | [diff] [blame] | 357 | #endif |
Alexander Graf | f4800b1 | 2012-08-07 10:24:14 +0200 | [diff] [blame] | 358 | case KVM_CAP_SYNC_MMU: |
| 359 | #ifdef CONFIG_KVM_BOOK3S_64_HV |
| 360 | r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0; |
| 361 | #elif defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
| 362 | r = 1; |
| 363 | #else |
| 364 | r = 0; |
Paul Mackerras | a293292 | 2012-11-19 22:57:20 +0000 | [diff] [blame] | 365 | break; |
| 366 | #endif |
| 367 | #ifdef CONFIG_KVM_BOOK3S_64_HV |
| 368 | case KVM_CAP_PPC_HTAB_FD: |
| 369 | r = 1; |
| 370 | break; |
Alexander Graf | f4800b1 | 2012-08-07 10:24:14 +0200 | [diff] [blame] | 371 | #endif |
| 372 | break; |
Matt Evans | b543403 | 2011-12-07 16:55:57 +0000 | [diff] [blame] | 373 | case KVM_CAP_NR_VCPUS: |
| 374 | /* |
| 375 | * Recommending a number of CPUs is somewhat arbitrary; we |
| 376 | * return the number of present CPUs for -HV (since a host |
| 377 | * will have secondary threads "offline"), and for other KVM |
| 378 | * implementations just count online CPUs. |
| 379 | */ |
| 380 | #ifdef CONFIG_KVM_BOOK3S_64_HV |
| 381 | r = num_present_cpus(); |
| 382 | #else |
| 383 | r = num_online_cpus(); |
| 384 | #endif |
| 385 | break; |
| 386 | case KVM_CAP_MAX_VCPUS: |
| 387 | r = KVM_MAX_VCPUS; |
| 388 | break; |
Benjamin Herrenschmidt | 5b74716 | 2012-04-26 19:43:42 +0000 | [diff] [blame] | 389 | #ifdef CONFIG_PPC_BOOK3S_64 |
| 390 | case KVM_CAP_PPC_GET_SMMU_INFO: |
| 391 | r = 1; |
| 392 | break; |
| 393 | #endif |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 394 | default: |
| 395 | r = 0; |
| 396 | break; |
| 397 | } |
| 398 | return r; |
| 399 | |
| 400 | } |
| 401 | |
| 402 | long kvm_arch_dev_ioctl(struct file *filp, |
| 403 | unsigned int ioctl, unsigned long arg) |
| 404 | { |
| 405 | return -EINVAL; |
| 406 | } |
| 407 | |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 408 | void kvm_arch_free_memslot(struct kvm_memory_slot *free, |
| 409 | struct kvm_memory_slot *dont) |
| 410 | { |
Paul Mackerras | a66b48c | 2012-09-11 13:27:46 +0000 | [diff] [blame] | 411 | kvmppc_core_free_memslot(free, dont); |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages) |
| 415 | { |
Paul Mackerras | a66b48c | 2012-09-11 13:27:46 +0000 | [diff] [blame] | 416 | return kvmppc_core_create_memslot(slot, npages); |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 417 | } |
| 418 | |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 419 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
Takuya Yoshikawa | 462fce4 | 2013-02-27 19:41:56 +0900 | [diff] [blame] | 420 | struct kvm_memory_slot *memslot, |
Takuya Yoshikawa | 7b6195a | 2013-02-27 19:44:34 +0900 | [diff] [blame] | 421 | struct kvm_userspace_memory_region *mem, |
| 422 | enum kvm_mr_change change) |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 423 | { |
Paul Mackerras | a66b48c | 2012-09-11 13:27:46 +0000 | [diff] [blame] | 424 | return kvmppc_core_prepare_memory_region(kvm, memslot, mem); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 425 | } |
| 426 | |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 427 | void kvm_arch_commit_memory_region(struct kvm *kvm, |
Takuya Yoshikawa | 462fce4 | 2013-02-27 19:41:56 +0900 | [diff] [blame] | 428 | struct kvm_userspace_memory_region *mem, |
Takuya Yoshikawa | 8482644 | 2013-02-27 19:45:25 +0900 | [diff] [blame] | 429 | const struct kvm_memory_slot *old, |
| 430 | enum kvm_mr_change change) |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 431 | { |
Paul Mackerras | dfe49db | 2012-09-11 13:28:18 +0000 | [diff] [blame] | 432 | kvmppc_core_commit_memory_region(kvm, mem, old); |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 433 | } |
| 434 | |
Marcelo Tosatti | 2df72e9 | 2012-08-24 15:54:57 -0300 | [diff] [blame] | 435 | void kvm_arch_flush_shadow_all(struct kvm *kvm) |
| 436 | { |
| 437 | } |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 438 | |
Marcelo Tosatti | 2df72e9 | 2012-08-24 15:54:57 -0300 | [diff] [blame] | 439 | void kvm_arch_flush_shadow_memslot(struct kvm *kvm, |
| 440 | struct kvm_memory_slot *slot) |
Marcelo Tosatti | 34d4cb8 | 2008-07-10 20:49:31 -0300 | [diff] [blame] | 441 | { |
Paul Mackerras | dfe49db | 2012-09-11 13:28:18 +0000 | [diff] [blame] | 442 | kvmppc_core_flush_memslot(kvm, slot); |
Marcelo Tosatti | 34d4cb8 | 2008-07-10 20:49:31 -0300 | [diff] [blame] | 443 | } |
| 444 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 445 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id) |
| 446 | { |
Hollis Blanchard | 73e75b4 | 2008-12-02 15:51:57 -0600 | [diff] [blame] | 447 | struct kvm_vcpu *vcpu; |
| 448 | vcpu = kvmppc_core_vcpu_create(kvm, id); |
Matt Evans | 03cdab5 | 2011-12-06 21:19:42 +0000 | [diff] [blame] | 449 | if (!IS_ERR(vcpu)) { |
| 450 | vcpu->arch.wqp = &vcpu->wq; |
Wei Yongjun | 06056bf | 2010-03-09 14:13:43 +0800 | [diff] [blame] | 451 | kvmppc_create_vcpu_debugfs(vcpu, id); |
Matt Evans | 03cdab5 | 2011-12-06 21:19:42 +0000 | [diff] [blame] | 452 | } |
Hollis Blanchard | 73e75b4 | 2008-12-02 15:51:57 -0600 | [diff] [blame] | 453 | return vcpu; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 454 | } |
| 455 | |
Marcelo Tosatti | 42897d8 | 2012-11-27 23:29:02 -0200 | [diff] [blame] | 456 | int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu) |
| 457 | { |
| 458 | return 0; |
| 459 | } |
| 460 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 461 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) |
| 462 | { |
Alexander Graf | a595405 | 2010-02-22 16:52:14 +0100 | [diff] [blame] | 463 | /* Make sure we're not using the vcpu anymore */ |
| 464 | hrtimer_cancel(&vcpu->arch.dec_timer); |
| 465 | tasklet_kill(&vcpu->arch.tasklet); |
| 466 | |
Hollis Blanchard | 73e75b4 | 2008-12-02 15:51:57 -0600 | [diff] [blame] | 467 | kvmppc_remove_vcpu_debugfs(vcpu); |
Scott Wood | eb1e4f4 | 2013-04-12 14:08:47 +0000 | [diff] [blame] | 468 | |
| 469 | switch (vcpu->arch.irq_type) { |
| 470 | case KVMPPC_IRQ_MPIC: |
| 471 | kvmppc_mpic_disconnect_vcpu(vcpu->arch.mpic, vcpu); |
| 472 | break; |
| 473 | } |
| 474 | |
Hollis Blanchard | db93f57 | 2008-11-05 09:36:18 -0600 | [diff] [blame] | 475 | kvmppc_core_vcpu_free(vcpu); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 476 | } |
| 477 | |
| 478 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) |
| 479 | { |
| 480 | kvm_arch_vcpu_free(vcpu); |
| 481 | } |
| 482 | |
| 483 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu) |
| 484 | { |
Hollis Blanchard | 9dd921c | 2008-11-05 09:36:14 -0600 | [diff] [blame] | 485 | return kvmppc_core_pending_dec(vcpu); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 486 | } |
| 487 | |
Alexander Graf | 544c676 | 2009-11-02 12:02:31 +0000 | [diff] [blame] | 488 | /* |
| 489 | * low level hrtimer wake routine. Because this runs in hardirq context |
| 490 | * we schedule a tasklet to do the real work. |
| 491 | */ |
| 492 | enum hrtimer_restart kvmppc_decrementer_wakeup(struct hrtimer *timer) |
| 493 | { |
| 494 | struct kvm_vcpu *vcpu; |
| 495 | |
| 496 | vcpu = container_of(timer, struct kvm_vcpu, arch.dec_timer); |
| 497 | tasklet_schedule(&vcpu->arch.tasklet); |
| 498 | |
| 499 | return HRTIMER_NORESTART; |
| 500 | } |
| 501 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 502 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) |
| 503 | { |
Bharat Bhushan | f61c94b | 2012-08-08 20:38:19 +0000 | [diff] [blame] | 504 | int ret; |
| 505 | |
Alexander Graf | 544c676 | 2009-11-02 12:02:31 +0000 | [diff] [blame] | 506 | hrtimer_init(&vcpu->arch.dec_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); |
| 507 | tasklet_init(&vcpu->arch.tasklet, kvmppc_decrementer_func, (ulong)vcpu); |
| 508 | vcpu->arch.dec_timer.function = kvmppc_decrementer_wakeup; |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 509 | vcpu->arch.dec_expires = ~(u64)0; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 510 | |
Bharat Bhushan | 09000ad | 2011-03-25 10:32:13 +0530 | [diff] [blame] | 511 | #ifdef CONFIG_KVM_EXIT_TIMING |
| 512 | mutex_init(&vcpu->arch.exit_timing_lock); |
| 513 | #endif |
Bharat Bhushan | f61c94b | 2012-08-08 20:38:19 +0000 | [diff] [blame] | 514 | ret = kvmppc_subarch_vcpu_init(vcpu); |
| 515 | return ret; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 516 | } |
| 517 | |
| 518 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) |
| 519 | { |
Hollis Blanchard | ecc0981 | 2009-01-03 16:22:59 -0600 | [diff] [blame] | 520 | kvmppc_mmu_destroy(vcpu); |
Bharat Bhushan | f61c94b | 2012-08-08 20:38:19 +0000 | [diff] [blame] | 521 | kvmppc_subarch_vcpu_uninit(vcpu); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) |
| 525 | { |
Scott Wood | eab1767 | 2011-04-27 17:24:10 -0500 | [diff] [blame] | 526 | #ifdef CONFIG_BOOKE |
| 527 | /* |
| 528 | * vrsave (formerly usprg0) isn't used by Linux, but may |
| 529 | * be used by the guest. |
| 530 | * |
| 531 | * On non-booke this is associated with Altivec and |
| 532 | * is handled by code in book3s.c. |
| 533 | */ |
| 534 | mtspr(SPRN_VRSAVE, vcpu->arch.vrsave); |
| 535 | #endif |
Hollis Blanchard | 9dd921c | 2008-11-05 09:36:14 -0600 | [diff] [blame] | 536 | kvmppc_core_vcpu_load(vcpu, cpu); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 537 | } |
| 538 | |
| 539 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) |
| 540 | { |
Hollis Blanchard | 9dd921c | 2008-11-05 09:36:14 -0600 | [diff] [blame] | 541 | kvmppc_core_vcpu_put(vcpu); |
Scott Wood | eab1767 | 2011-04-27 17:24:10 -0500 | [diff] [blame] | 542 | #ifdef CONFIG_BOOKE |
| 543 | vcpu->arch.vrsave = mfspr(SPRN_VRSAVE); |
| 544 | #endif |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 545 | } |
| 546 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 547 | static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu, |
| 548 | struct kvm_run *run) |
| 549 | { |
Alexander Graf | 8e5b26b | 2010-01-08 02:58:01 +0100 | [diff] [blame] | 550 | kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, run->dcr.data); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 551 | } |
| 552 | |
| 553 | static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu, |
| 554 | struct kvm_run *run) |
| 555 | { |
Denis Kirjanov | 69b6183 | 2010-06-11 11:23:26 +0000 | [diff] [blame] | 556 | u64 uninitialized_var(gpr); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 557 | |
Alexander Graf | 8e5b26b | 2010-01-08 02:58:01 +0100 | [diff] [blame] | 558 | if (run->mmio.len > sizeof(gpr)) { |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 559 | printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len); |
| 560 | return; |
| 561 | } |
| 562 | |
| 563 | if (vcpu->arch.mmio_is_bigendian) { |
| 564 | switch (run->mmio.len) { |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 565 | case 8: gpr = *(u64 *)run->mmio.data; break; |
Alexander Graf | 8e5b26b | 2010-01-08 02:58:01 +0100 | [diff] [blame] | 566 | case 4: gpr = *(u32 *)run->mmio.data; break; |
| 567 | case 2: gpr = *(u16 *)run->mmio.data; break; |
| 568 | case 1: gpr = *(u8 *)run->mmio.data; break; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 569 | } |
| 570 | } else { |
| 571 | /* Convert BE data from userland back to LE. */ |
| 572 | switch (run->mmio.len) { |
Alexander Graf | 8e5b26b | 2010-01-08 02:58:01 +0100 | [diff] [blame] | 573 | case 4: gpr = ld_le32((u32 *)run->mmio.data); break; |
| 574 | case 2: gpr = ld_le16((u16 *)run->mmio.data); break; |
| 575 | case 1: gpr = *(u8 *)run->mmio.data; break; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 576 | } |
| 577 | } |
Alexander Graf | 8e5b26b | 2010-01-08 02:58:01 +0100 | [diff] [blame] | 578 | |
Alexander Graf | 3587d53 | 2010-02-19 11:00:30 +0100 | [diff] [blame] | 579 | if (vcpu->arch.mmio_sign_extend) { |
| 580 | switch (run->mmio.len) { |
| 581 | #ifdef CONFIG_PPC64 |
| 582 | case 4: |
| 583 | gpr = (s64)(s32)gpr; |
| 584 | break; |
| 585 | #endif |
| 586 | case 2: |
| 587 | gpr = (s64)(s16)gpr; |
| 588 | break; |
| 589 | case 1: |
| 590 | gpr = (s64)(s8)gpr; |
| 591 | break; |
| 592 | } |
| 593 | } |
| 594 | |
Alexander Graf | 8e5b26b | 2010-01-08 02:58:01 +0100 | [diff] [blame] | 595 | kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr); |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 596 | |
Alexander Graf | b3c5d3c | 2012-01-07 02:07:38 +0100 | [diff] [blame] | 597 | switch (vcpu->arch.io_gpr & KVM_MMIO_REG_EXT_MASK) { |
| 598 | case KVM_MMIO_REG_GPR: |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 599 | kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr); |
| 600 | break; |
Alexander Graf | b3c5d3c | 2012-01-07 02:07:38 +0100 | [diff] [blame] | 601 | case KVM_MMIO_REG_FPR: |
| 602 | vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr; |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 603 | break; |
Alexander Graf | 287d561 | 2010-04-01 15:33:21 +0200 | [diff] [blame] | 604 | #ifdef CONFIG_PPC_BOOK3S |
Alexander Graf | b3c5d3c | 2012-01-07 02:07:38 +0100 | [diff] [blame] | 605 | case KVM_MMIO_REG_QPR: |
| 606 | vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr; |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 607 | break; |
Alexander Graf | b3c5d3c | 2012-01-07 02:07:38 +0100 | [diff] [blame] | 608 | case KVM_MMIO_REG_FQPR: |
| 609 | vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr; |
| 610 | vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr; |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 611 | break; |
Alexander Graf | 287d561 | 2010-04-01 15:33:21 +0200 | [diff] [blame] | 612 | #endif |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 613 | default: |
| 614 | BUG(); |
| 615 | } |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 616 | } |
| 617 | |
| 618 | int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| 619 | unsigned int rt, unsigned int bytes, int is_bigendian) |
| 620 | { |
| 621 | if (bytes > sizeof(run->mmio.data)) { |
| 622 | printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__, |
| 623 | run->mmio.len); |
| 624 | } |
| 625 | |
| 626 | run->mmio.phys_addr = vcpu->arch.paddr_accessed; |
| 627 | run->mmio.len = bytes; |
| 628 | run->mmio.is_write = 0; |
| 629 | |
| 630 | vcpu->arch.io_gpr = rt; |
| 631 | vcpu->arch.mmio_is_bigendian = is_bigendian; |
| 632 | vcpu->mmio_needed = 1; |
| 633 | vcpu->mmio_is_write = 0; |
Alexander Graf | 3587d53 | 2010-02-19 11:00:30 +0100 | [diff] [blame] | 634 | vcpu->arch.mmio_sign_extend = 0; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 635 | |
Alexander Graf | 0e673fb | 2012-10-09 00:06:20 +0200 | [diff] [blame] | 636 | if (!kvm_io_bus_read(vcpu->kvm, KVM_MMIO_BUS, run->mmio.phys_addr, |
| 637 | bytes, &run->mmio.data)) { |
| 638 | kvmppc_complete_mmio_load(vcpu, run); |
| 639 | vcpu->mmio_needed = 0; |
| 640 | return EMULATE_DONE; |
| 641 | } |
| 642 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 643 | return EMULATE_DO_MMIO; |
| 644 | } |
| 645 | |
Alexander Graf | 3587d53 | 2010-02-19 11:00:30 +0100 | [diff] [blame] | 646 | /* Same as above, but sign extends */ |
| 647 | int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| 648 | unsigned int rt, unsigned int bytes, int is_bigendian) |
| 649 | { |
| 650 | int r; |
| 651 | |
Alexander Graf | 3587d53 | 2010-02-19 11:00:30 +0100 | [diff] [blame] | 652 | vcpu->arch.mmio_sign_extend = 1; |
Alexander Graf | 0e673fb | 2012-10-09 00:06:20 +0200 | [diff] [blame] | 653 | r = kvmppc_handle_load(run, vcpu, rt, bytes, is_bigendian); |
Alexander Graf | 3587d53 | 2010-02-19 11:00:30 +0100 | [diff] [blame] | 654 | |
| 655 | return r; |
| 656 | } |
| 657 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 658 | int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 659 | u64 val, unsigned int bytes, int is_bigendian) |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 660 | { |
| 661 | void *data = run->mmio.data; |
| 662 | |
| 663 | if (bytes > sizeof(run->mmio.data)) { |
| 664 | printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__, |
| 665 | run->mmio.len); |
| 666 | } |
| 667 | |
| 668 | run->mmio.phys_addr = vcpu->arch.paddr_accessed; |
| 669 | run->mmio.len = bytes; |
| 670 | run->mmio.is_write = 1; |
| 671 | vcpu->mmio_needed = 1; |
| 672 | vcpu->mmio_is_write = 1; |
| 673 | |
| 674 | /* Store the value at the lowest bytes in 'data'. */ |
| 675 | if (is_bigendian) { |
| 676 | switch (bytes) { |
Alexander Graf | b104d06 | 2010-02-19 11:00:29 +0100 | [diff] [blame] | 677 | case 8: *(u64 *)data = val; break; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 678 | case 4: *(u32 *)data = val; break; |
| 679 | case 2: *(u16 *)data = val; break; |
| 680 | case 1: *(u8 *)data = val; break; |
| 681 | } |
| 682 | } else { |
| 683 | /* Store LE value into 'data'. */ |
| 684 | switch (bytes) { |
| 685 | case 4: st_le32(data, val); break; |
| 686 | case 2: st_le16(data, val); break; |
| 687 | case 1: *(u8 *)data = val; break; |
| 688 | } |
| 689 | } |
| 690 | |
Alexander Graf | 0e673fb | 2012-10-09 00:06:20 +0200 | [diff] [blame] | 691 | if (!kvm_io_bus_write(vcpu->kvm, KVM_MMIO_BUS, run->mmio.phys_addr, |
| 692 | bytes, &run->mmio.data)) { |
Alexander Graf | 0e673fb | 2012-10-09 00:06:20 +0200 | [diff] [blame] | 693 | vcpu->mmio_needed = 0; |
| 694 | return EMULATE_DONE; |
| 695 | } |
| 696 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 697 | return EMULATE_DO_MMIO; |
| 698 | } |
| 699 | |
| 700 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) |
| 701 | { |
| 702 | int r; |
| 703 | sigset_t sigsaved; |
| 704 | |
| 705 | if (vcpu->sigset_active) |
| 706 | sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); |
| 707 | |
| 708 | if (vcpu->mmio_needed) { |
| 709 | if (!vcpu->mmio_is_write) |
| 710 | kvmppc_complete_mmio_load(vcpu, run); |
| 711 | vcpu->mmio_needed = 0; |
| 712 | } else if (vcpu->arch.dcr_needed) { |
| 713 | if (!vcpu->arch.dcr_is_write) |
| 714 | kvmppc_complete_dcr_load(vcpu, run); |
| 715 | vcpu->arch.dcr_needed = 0; |
Alexander Graf | ad0a048 | 2010-03-24 21:48:30 +0100 | [diff] [blame] | 716 | } else if (vcpu->arch.osi_needed) { |
| 717 | u64 *gprs = run->osi.gprs; |
| 718 | int i; |
| 719 | |
| 720 | for (i = 0; i < 32; i++) |
| 721 | kvmppc_set_gpr(vcpu, i, gprs[i]); |
| 722 | vcpu->arch.osi_needed = 0; |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 723 | } else if (vcpu->arch.hcall_needed) { |
| 724 | int i; |
| 725 | |
| 726 | kvmppc_set_gpr(vcpu, 3, run->papr_hcall.ret); |
| 727 | for (i = 0; i < 9; ++i) |
| 728 | kvmppc_set_gpr(vcpu, 4 + i, run->papr_hcall.args[i]); |
| 729 | vcpu->arch.hcall_needed = 0; |
Alexander Graf | 1c81063 | 2013-01-04 18:12:48 +0100 | [diff] [blame] | 730 | #ifdef CONFIG_BOOKE |
| 731 | } else if (vcpu->arch.epr_needed) { |
| 732 | kvmppc_set_epr(vcpu, run->epr.epr); |
| 733 | vcpu->arch.epr_needed = 0; |
| 734 | #endif |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 735 | } |
| 736 | |
Paul Mackerras | df6909e5 | 2011-06-29 00:19:50 +0000 | [diff] [blame] | 737 | r = kvmppc_vcpu_run(run, vcpu); |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 738 | |
| 739 | if (vcpu->sigset_active) |
| 740 | sigprocmask(SIG_SETMASK, &sigsaved, NULL); |
| 741 | |
| 742 | return r; |
| 743 | } |
| 744 | |
| 745 | int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq) |
| 746 | { |
Paul Mackerras | 19ccb76 | 2011-07-23 17:42:46 +1000 | [diff] [blame] | 747 | if (irq->irq == KVM_INTERRUPT_UNSET) { |
Paul Mackerras | 4fe27d2 | 2013-02-14 14:00:25 +0000 | [diff] [blame] | 748 | kvmppc_core_dequeue_external(vcpu); |
Paul Mackerras | 19ccb76 | 2011-07-23 17:42:46 +1000 | [diff] [blame] | 749 | return 0; |
| 750 | } |
Hollis Blanchard | 45c5eb6 | 2008-04-25 17:55:49 -0500 | [diff] [blame] | 751 | |
Paul Mackerras | 19ccb76 | 2011-07-23 17:42:46 +1000 | [diff] [blame] | 752 | kvmppc_core_queue_external(vcpu, irq); |
Christoffer Dall | b6d3383 | 2012-03-08 16:44:24 -0500 | [diff] [blame] | 753 | |
Scott Wood | dfd4d47 | 2011-11-17 12:39:59 +0000 | [diff] [blame] | 754 | kvm_vcpu_kick(vcpu); |
Hollis Blanchard | 45c5eb6 | 2008-04-25 17:55:49 -0500 | [diff] [blame] | 755 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 756 | return 0; |
| 757 | } |
| 758 | |
Alexander Graf | 71fbfd5 | 2010-03-24 21:48:29 +0100 | [diff] [blame] | 759 | static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu, |
| 760 | struct kvm_enable_cap *cap) |
| 761 | { |
| 762 | int r; |
| 763 | |
| 764 | if (cap->flags) |
| 765 | return -EINVAL; |
| 766 | |
| 767 | switch (cap->cap) { |
Alexander Graf | ad0a048 | 2010-03-24 21:48:30 +0100 | [diff] [blame] | 768 | case KVM_CAP_PPC_OSI: |
| 769 | r = 0; |
| 770 | vcpu->arch.osi_enabled = true; |
| 771 | break; |
Alexander Graf | 930b412 | 2011-08-08 17:29:42 +0200 | [diff] [blame] | 772 | case KVM_CAP_PPC_PAPR: |
| 773 | r = 0; |
| 774 | vcpu->arch.papr_enabled = true; |
| 775 | break; |
Alexander Graf | 1c81063 | 2013-01-04 18:12:48 +0100 | [diff] [blame] | 776 | case KVM_CAP_PPC_EPR: |
| 777 | r = 0; |
Scott Wood | 5df554a | 2013-04-12 14:08:46 +0000 | [diff] [blame] | 778 | if (cap->args[0]) |
| 779 | vcpu->arch.epr_flags |= KVMPPC_EPR_USER; |
| 780 | else |
| 781 | vcpu->arch.epr_flags &= ~KVMPPC_EPR_USER; |
Alexander Graf | 1c81063 | 2013-01-04 18:12:48 +0100 | [diff] [blame] | 782 | break; |
Bharat Bhushan | f61c94b | 2012-08-08 20:38:19 +0000 | [diff] [blame] | 783 | #ifdef CONFIG_BOOKE |
| 784 | case KVM_CAP_PPC_BOOKE_WATCHDOG: |
| 785 | r = 0; |
| 786 | vcpu->arch.watchdog_enabled = true; |
| 787 | break; |
| 788 | #endif |
Alexander Graf | bf7ca4b | 2012-02-15 23:40:00 +0000 | [diff] [blame] | 789 | #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC) |
Scott Wood | dc83b8b | 2011-08-18 15:25:21 -0500 | [diff] [blame] | 790 | case KVM_CAP_SW_TLB: { |
| 791 | struct kvm_config_tlb cfg; |
| 792 | void __user *user_ptr = (void __user *)(uintptr_t)cap->args[0]; |
| 793 | |
| 794 | r = -EFAULT; |
| 795 | if (copy_from_user(&cfg, user_ptr, sizeof(cfg))) |
| 796 | break; |
| 797 | |
| 798 | r = kvm_vcpu_ioctl_config_tlb(vcpu, &cfg); |
| 799 | break; |
| 800 | } |
| 801 | #endif |
Scott Wood | eb1e4f4 | 2013-04-12 14:08:47 +0000 | [diff] [blame] | 802 | #ifdef CONFIG_KVM_MPIC |
| 803 | case KVM_CAP_IRQ_MPIC: { |
| 804 | struct file *filp; |
| 805 | struct kvm_device *dev; |
| 806 | |
| 807 | r = -EBADF; |
| 808 | filp = fget(cap->args[0]); |
| 809 | if (!filp) |
| 810 | break; |
| 811 | |
| 812 | r = -EPERM; |
| 813 | dev = kvm_device_from_filp(filp); |
| 814 | if (dev) |
| 815 | r = kvmppc_mpic_connect_vcpu(dev, vcpu, cap->args[1]); |
| 816 | |
| 817 | fput(filp); |
| 818 | break; |
| 819 | } |
| 820 | #endif |
Alexander Graf | 71fbfd5 | 2010-03-24 21:48:29 +0100 | [diff] [blame] | 821 | default: |
| 822 | r = -EINVAL; |
| 823 | break; |
| 824 | } |
| 825 | |
Alexander Graf | af8f38b | 2011-08-10 13:57:08 +0200 | [diff] [blame] | 826 | if (!r) |
| 827 | r = kvmppc_sanity_check(vcpu); |
| 828 | |
Alexander Graf | 71fbfd5 | 2010-03-24 21:48:29 +0100 | [diff] [blame] | 829 | return r; |
| 830 | } |
| 831 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 832 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
| 833 | struct kvm_mp_state *mp_state) |
| 834 | { |
| 835 | return -EINVAL; |
| 836 | } |
| 837 | |
| 838 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, |
| 839 | struct kvm_mp_state *mp_state) |
| 840 | { |
| 841 | return -EINVAL; |
| 842 | } |
| 843 | |
| 844 | long kvm_arch_vcpu_ioctl(struct file *filp, |
| 845 | unsigned int ioctl, unsigned long arg) |
| 846 | { |
| 847 | struct kvm_vcpu *vcpu = filp->private_data; |
| 848 | void __user *argp = (void __user *)arg; |
| 849 | long r; |
| 850 | |
Avi Kivity | 9373662 | 2010-05-13 12:35:17 +0300 | [diff] [blame] | 851 | switch (ioctl) { |
| 852 | case KVM_INTERRUPT: { |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 853 | struct kvm_interrupt irq; |
| 854 | r = -EFAULT; |
| 855 | if (copy_from_user(&irq, argp, sizeof(irq))) |
Avi Kivity | 9373662 | 2010-05-13 12:35:17 +0300 | [diff] [blame] | 856 | goto out; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 857 | r = kvm_vcpu_ioctl_interrupt(vcpu, &irq); |
Avi Kivity | 9373662 | 2010-05-13 12:35:17 +0300 | [diff] [blame] | 858 | goto out; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 859 | } |
Avi Kivity | 19483d1 | 2010-05-13 12:30:43 +0300 | [diff] [blame] | 860 | |
Alexander Graf | 71fbfd5 | 2010-03-24 21:48:29 +0100 | [diff] [blame] | 861 | case KVM_ENABLE_CAP: |
| 862 | { |
| 863 | struct kvm_enable_cap cap; |
| 864 | r = -EFAULT; |
| 865 | if (copy_from_user(&cap, argp, sizeof(cap))) |
| 866 | goto out; |
| 867 | r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap); |
| 868 | break; |
| 869 | } |
Scott Wood | dc83b8b | 2011-08-18 15:25:21 -0500 | [diff] [blame] | 870 | |
Alexander Graf | e24ed81 | 2011-09-14 10:02:41 +0200 | [diff] [blame] | 871 | case KVM_SET_ONE_REG: |
| 872 | case KVM_GET_ONE_REG: |
| 873 | { |
| 874 | struct kvm_one_reg reg; |
| 875 | r = -EFAULT; |
| 876 | if (copy_from_user(®, argp, sizeof(reg))) |
| 877 | goto out; |
| 878 | if (ioctl == KVM_SET_ONE_REG) |
| 879 | r = kvm_vcpu_ioctl_set_one_reg(vcpu, ®); |
| 880 | else |
| 881 | r = kvm_vcpu_ioctl_get_one_reg(vcpu, ®); |
| 882 | break; |
| 883 | } |
| 884 | |
Alexander Graf | bf7ca4b | 2012-02-15 23:40:00 +0000 | [diff] [blame] | 885 | #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC) |
Scott Wood | dc83b8b | 2011-08-18 15:25:21 -0500 | [diff] [blame] | 886 | case KVM_DIRTY_TLB: { |
| 887 | struct kvm_dirty_tlb dirty; |
| 888 | r = -EFAULT; |
| 889 | if (copy_from_user(&dirty, argp, sizeof(dirty))) |
| 890 | goto out; |
| 891 | r = kvm_vcpu_ioctl_dirty_tlb(vcpu, &dirty); |
| 892 | break; |
| 893 | } |
| 894 | #endif |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 895 | default: |
| 896 | r = -EINVAL; |
| 897 | } |
| 898 | |
| 899 | out: |
| 900 | return r; |
| 901 | } |
| 902 | |
Carsten Otte | 5b1c149 | 2012-01-04 10:25:23 +0100 | [diff] [blame] | 903 | int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) |
| 904 | { |
| 905 | return VM_FAULT_SIGBUS; |
| 906 | } |
| 907 | |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 908 | static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo) |
| 909 | { |
Stuart Yoder | 784bafa | 2012-07-03 05:48:51 +0000 | [diff] [blame] | 910 | u32 inst_nop = 0x60000000; |
| 911 | #ifdef CONFIG_KVM_BOOKE_HV |
| 912 | u32 inst_sc1 = 0x44000022; |
| 913 | pvinfo->hcall[0] = inst_sc1; |
| 914 | pvinfo->hcall[1] = inst_nop; |
| 915 | pvinfo->hcall[2] = inst_nop; |
| 916 | pvinfo->hcall[3] = inst_nop; |
| 917 | #else |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 918 | u32 inst_lis = 0x3c000000; |
| 919 | u32 inst_ori = 0x60000000; |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 920 | u32 inst_sc = 0x44000002; |
| 921 | u32 inst_imm_mask = 0xffff; |
| 922 | |
| 923 | /* |
| 924 | * The hypercall to get into KVM from within guest context is as |
| 925 | * follows: |
| 926 | * |
| 927 | * lis r0, r0, KVM_SC_MAGIC_R0@h |
| 928 | * ori r0, KVM_SC_MAGIC_R0@l |
| 929 | * sc |
| 930 | * nop |
| 931 | */ |
| 932 | pvinfo->hcall[0] = inst_lis | ((KVM_SC_MAGIC_R0 >> 16) & inst_imm_mask); |
| 933 | pvinfo->hcall[1] = inst_ori | (KVM_SC_MAGIC_R0 & inst_imm_mask); |
| 934 | pvinfo->hcall[2] = inst_sc; |
| 935 | pvinfo->hcall[3] = inst_nop; |
Stuart Yoder | 784bafa | 2012-07-03 05:48:51 +0000 | [diff] [blame] | 936 | #endif |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 937 | |
Liu Yu-B13201 | 9202e07 | 2012-07-03 05:48:52 +0000 | [diff] [blame] | 938 | pvinfo->flags = KVM_PPC_PVINFO_FLAGS_EV_IDLE; |
| 939 | |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 940 | return 0; |
| 941 | } |
| 942 | |
Alexander Graf | 5efdb4b | 2013-04-17 00:37:57 +0200 | [diff] [blame^] | 943 | int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_event, |
| 944 | bool line_status) |
| 945 | { |
| 946 | if (!irqchip_in_kernel(kvm)) |
| 947 | return -ENXIO; |
| 948 | |
| 949 | irq_event->status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID, |
| 950 | irq_event->irq, irq_event->level, |
| 951 | line_status); |
| 952 | return 0; |
| 953 | } |
| 954 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 955 | long kvm_arch_vm_ioctl(struct file *filp, |
| 956 | unsigned int ioctl, unsigned long arg) |
| 957 | { |
Scott Wood | 5df554a | 2013-04-12 14:08:46 +0000 | [diff] [blame] | 958 | struct kvm *kvm __maybe_unused = filp->private_data; |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 959 | void __user *argp = (void __user *)arg; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 960 | long r; |
| 961 | |
| 962 | switch (ioctl) { |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 963 | case KVM_PPC_GET_PVINFO: { |
| 964 | struct kvm_ppc_pvinfo pvinfo; |
Vasiliy Kulikov | d8cdddc | 2010-10-30 13:04:24 +0400 | [diff] [blame] | 965 | memset(&pvinfo, 0, sizeof(pvinfo)); |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 966 | r = kvm_vm_ioctl_get_pvinfo(&pvinfo); |
| 967 | if (copy_to_user(argp, &pvinfo, sizeof(pvinfo))) { |
| 968 | r = -EFAULT; |
| 969 | goto out; |
| 970 | } |
| 971 | |
| 972 | break; |
| 973 | } |
Benjamin Herrenschmidt | f31e65e | 2012-03-15 21:58:34 +0000 | [diff] [blame] | 974 | #ifdef CONFIG_PPC_BOOK3S_64 |
David Gibson | 54738c0 | 2011-06-29 00:22:41 +0000 | [diff] [blame] | 975 | case KVM_CREATE_SPAPR_TCE: { |
| 976 | struct kvm_create_spapr_tce create_tce; |
David Gibson | 54738c0 | 2011-06-29 00:22:41 +0000 | [diff] [blame] | 977 | |
| 978 | r = -EFAULT; |
| 979 | if (copy_from_user(&create_tce, argp, sizeof(create_tce))) |
| 980 | goto out; |
| 981 | r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce); |
| 982 | goto out; |
| 983 | } |
Benjamin Herrenschmidt | f31e65e | 2012-03-15 21:58:34 +0000 | [diff] [blame] | 984 | #endif /* CONFIG_PPC_BOOK3S_64 */ |
Paul Mackerras | aa04b4c | 2011-06-29 00:25:44 +0000 | [diff] [blame] | 985 | |
Benjamin Herrenschmidt | f31e65e | 2012-03-15 21:58:34 +0000 | [diff] [blame] | 986 | #ifdef CONFIG_KVM_BOOK3S_64_HV |
Paul Mackerras | aa04b4c | 2011-06-29 00:25:44 +0000 | [diff] [blame] | 987 | case KVM_ALLOCATE_RMA: { |
Paul Mackerras | aa04b4c | 2011-06-29 00:25:44 +0000 | [diff] [blame] | 988 | struct kvm_allocate_rma rma; |
| 989 | |
| 990 | r = kvm_vm_ioctl_allocate_rma(kvm, &rma); |
| 991 | if (r >= 0 && copy_to_user(argp, &rma, sizeof(rma))) |
| 992 | r = -EFAULT; |
| 993 | break; |
| 994 | } |
Paul Mackerras | 32fad28 | 2012-05-04 02:32:53 +0000 | [diff] [blame] | 995 | |
| 996 | case KVM_PPC_ALLOCATE_HTAB: { |
Paul Mackerras | 32fad28 | 2012-05-04 02:32:53 +0000 | [diff] [blame] | 997 | u32 htab_order; |
| 998 | |
| 999 | r = -EFAULT; |
| 1000 | if (get_user(htab_order, (u32 __user *)argp)) |
| 1001 | break; |
| 1002 | r = kvmppc_alloc_reset_hpt(kvm, &htab_order); |
| 1003 | if (r) |
| 1004 | break; |
| 1005 | r = -EFAULT; |
| 1006 | if (put_user(htab_order, (u32 __user *)argp)) |
| 1007 | break; |
| 1008 | r = 0; |
| 1009 | break; |
| 1010 | } |
Paul Mackerras | a293292 | 2012-11-19 22:57:20 +0000 | [diff] [blame] | 1011 | |
| 1012 | case KVM_PPC_GET_HTAB_FD: { |
Paul Mackerras | a293292 | 2012-11-19 22:57:20 +0000 | [diff] [blame] | 1013 | struct kvm_get_htab_fd ghf; |
| 1014 | |
| 1015 | r = -EFAULT; |
| 1016 | if (copy_from_user(&ghf, argp, sizeof(ghf))) |
| 1017 | break; |
| 1018 | r = kvm_vm_ioctl_get_htab_fd(kvm, &ghf); |
| 1019 | break; |
| 1020 | } |
David Gibson | 54738c0 | 2011-06-29 00:22:41 +0000 | [diff] [blame] | 1021 | #endif /* CONFIG_KVM_BOOK3S_64_HV */ |
| 1022 | |
Benjamin Herrenschmidt | 5b74716 | 2012-04-26 19:43:42 +0000 | [diff] [blame] | 1023 | #ifdef CONFIG_PPC_BOOK3S_64 |
| 1024 | case KVM_PPC_GET_SMMU_INFO: { |
Benjamin Herrenschmidt | 5b74716 | 2012-04-26 19:43:42 +0000 | [diff] [blame] | 1025 | struct kvm_ppc_smmu_info info; |
| 1026 | |
| 1027 | memset(&info, 0, sizeof(info)); |
| 1028 | r = kvm_vm_ioctl_get_smmu_info(kvm, &info); |
| 1029 | if (r >= 0 && copy_to_user(argp, &info, sizeof(info))) |
| 1030 | r = -EFAULT; |
| 1031 | break; |
| 1032 | } |
| 1033 | #endif /* CONFIG_PPC_BOOK3S_64 */ |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 1034 | default: |
Avi Kivity | 367e131 | 2009-08-26 14:57:07 +0300 | [diff] [blame] | 1035 | r = -ENOTTY; |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 1036 | } |
| 1037 | |
Alexander Graf | 15711e9 | 2010-07-29 14:48:08 +0200 | [diff] [blame] | 1038 | out: |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 1039 | return r; |
| 1040 | } |
| 1041 | |
Scott Wood | 043cc4d | 2011-12-20 15:34:20 +0000 | [diff] [blame] | 1042 | static unsigned long lpid_inuse[BITS_TO_LONGS(KVMPPC_NR_LPIDS)]; |
| 1043 | static unsigned long nr_lpids; |
| 1044 | |
| 1045 | long kvmppc_alloc_lpid(void) |
| 1046 | { |
| 1047 | long lpid; |
| 1048 | |
| 1049 | do { |
| 1050 | lpid = find_first_zero_bit(lpid_inuse, KVMPPC_NR_LPIDS); |
| 1051 | if (lpid >= nr_lpids) { |
| 1052 | pr_err("%s: No LPIDs free\n", __func__); |
| 1053 | return -ENOMEM; |
| 1054 | } |
| 1055 | } while (test_and_set_bit(lpid, lpid_inuse)); |
| 1056 | |
| 1057 | return lpid; |
| 1058 | } |
| 1059 | |
| 1060 | void kvmppc_claim_lpid(long lpid) |
| 1061 | { |
| 1062 | set_bit(lpid, lpid_inuse); |
| 1063 | } |
| 1064 | |
| 1065 | void kvmppc_free_lpid(long lpid) |
| 1066 | { |
| 1067 | clear_bit(lpid, lpid_inuse); |
| 1068 | } |
| 1069 | |
| 1070 | void kvmppc_init_lpid(unsigned long nr_lpids_param) |
| 1071 | { |
| 1072 | nr_lpids = min_t(unsigned long, KVMPPC_NR_LPIDS, nr_lpids_param); |
| 1073 | memset(lpid_inuse, 0, sizeof(lpid_inuse)); |
| 1074 | } |
| 1075 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 1076 | int kvm_arch_init(void *opaque) |
| 1077 | { |
| 1078 | return 0; |
| 1079 | } |
| 1080 | |
| 1081 | void kvm_arch_exit(void) |
| 1082 | { |
| 1083 | } |