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Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001/*
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
Scott Wood4cd35f62011-06-14 18:34:31 -050016 * Copyright 2010-2011 Freescale Semiconductor, Inc.
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050017 *
18 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
19 * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Scott Woodd30f6e42011-12-20 15:34:43 +000020 * Scott Wood <scottwood@freescale.com>
21 * Varun Sethi <varun.sethi@freescale.com>
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050022 */
23
24#include <linux/errno.h>
25#include <linux/err.h>
26#include <linux/kvm_host.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090027#include <linux/gfp.h>
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050028#include <linux/module.h>
29#include <linux/vmalloc.h>
30#include <linux/fs.h>
Hollis Blanchard7924bd42008-12-02 15:51:55 -060031
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050032#include <asm/cputable.h>
33#include <asm/uaccess.h>
34#include <asm/kvm_ppc.h>
Hollis Blanchardd9fbd032008-11-05 09:36:13 -060035#include <asm/cacheflush.h>
Scott Woodd30f6e42011-12-20 15:34:43 +000036#include <asm/dbell.h>
37#include <asm/hw_irq.h>
38#include <asm/irq.h>
Mihai Caramanb50df192012-10-11 06:13:19 +000039#include <asm/time.h>
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050040
Scott Woodd30f6e42011-12-20 15:34:43 +000041#include "timing.h"
Hollis Blanchard75f74f02008-11-05 09:36:16 -060042#include "booke.h"
Alexander Graf97c95052012-08-02 15:10:00 +020043#include "trace.h"
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050044
Hollis Blanchardd9fbd032008-11-05 09:36:13 -060045unsigned long kvmppc_booke_handlers;
46
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050047#define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
48#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
49
50struct kvm_stats_debugfs_item debugfs_entries[] = {
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050051 { "mmio", VCPU_STAT(mmio_exits) },
52 { "dcr", VCPU_STAT(dcr_exits) },
53 { "sig", VCPU_STAT(signal_exits) },
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050054 { "itlb_r", VCPU_STAT(itlb_real_miss_exits) },
55 { "itlb_v", VCPU_STAT(itlb_virt_miss_exits) },
56 { "dtlb_r", VCPU_STAT(dtlb_real_miss_exits) },
57 { "dtlb_v", VCPU_STAT(dtlb_virt_miss_exits) },
58 { "sysc", VCPU_STAT(syscall_exits) },
59 { "isi", VCPU_STAT(isi_exits) },
60 { "dsi", VCPU_STAT(dsi_exits) },
61 { "inst_emu", VCPU_STAT(emulated_inst_exits) },
62 { "dec", VCPU_STAT(dec_exits) },
63 { "ext_intr", VCPU_STAT(ext_intr_exits) },
Hollis Blanchard45c5eb62008-04-25 17:55:49 -050064 { "halt_wakeup", VCPU_STAT(halt_wakeup) },
Scott Woodd30f6e42011-12-20 15:34:43 +000065 { "doorbell", VCPU_STAT(dbell_exits) },
66 { "guest doorbell", VCPU_STAT(gdbell_exits) },
Alexander Grafcf1c5ca2012-08-01 12:56:51 +020067 { "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050068 { NULL }
69};
70
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050071/* TODO: use vcpu_printf() */
72void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu)
73{
74 int i;
75
Alexander Graf666e7252010-07-29 14:47:43 +020076 printk("pc: %08lx msr: %08llx\n", vcpu->arch.pc, vcpu->arch.shared->msr);
Hollis Blanchard5cf8ca22008-11-05 09:36:19 -060077 printk("lr: %08lx ctr: %08lx\n", vcpu->arch.lr, vcpu->arch.ctr);
Alexander Grafde7906c2010-07-29 14:47:46 +020078 printk("srr0: %08llx srr1: %08llx\n", vcpu->arch.shared->srr0,
79 vcpu->arch.shared->srr1);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050080
81 printk("exceptions: %08lx\n", vcpu->arch.pending_exceptions);
82
83 for (i = 0; i < 32; i += 4) {
Hollis Blanchard5cf8ca22008-11-05 09:36:19 -060084 printk("gpr%02d: %08lx %08lx %08lx %08lx\n", i,
Alexander Graf8e5b26b2010-01-08 02:58:01 +010085 kvmppc_get_gpr(vcpu, i),
86 kvmppc_get_gpr(vcpu, i+1),
87 kvmppc_get_gpr(vcpu, i+2),
88 kvmppc_get_gpr(vcpu, i+3));
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050089 }
90}
91
Scott Wood4cd35f62011-06-14 18:34:31 -050092#ifdef CONFIG_SPE
93void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu)
94{
95 preempt_disable();
96 enable_kernel_spe();
97 kvmppc_save_guest_spe(vcpu);
98 vcpu->arch.shadow_msr &= ~MSR_SPE;
99 preempt_enable();
100}
101
102static void kvmppc_vcpu_enable_spe(struct kvm_vcpu *vcpu)
103{
104 preempt_disable();
105 enable_kernel_spe();
106 kvmppc_load_guest_spe(vcpu);
107 vcpu->arch.shadow_msr |= MSR_SPE;
108 preempt_enable();
109}
110
111static void kvmppc_vcpu_sync_spe(struct kvm_vcpu *vcpu)
112{
113 if (vcpu->arch.shared->msr & MSR_SPE) {
114 if (!(vcpu->arch.shadow_msr & MSR_SPE))
115 kvmppc_vcpu_enable_spe(vcpu);
116 } else if (vcpu->arch.shadow_msr & MSR_SPE) {
117 kvmppc_vcpu_disable_spe(vcpu);
118 }
119}
120#else
121static void kvmppc_vcpu_sync_spe(struct kvm_vcpu *vcpu)
122{
123}
124#endif
125
Alexander Graf7a08c272012-08-16 13:10:16 +0200126static void kvmppc_vcpu_sync_fpu(struct kvm_vcpu *vcpu)
127{
128#if defined(CONFIG_PPC_FPU) && !defined(CONFIG_KVM_BOOKE_HV)
129 /* We always treat the FP bit as enabled from the host
130 perspective, so only need to adjust the shadow MSR */
131 vcpu->arch.shadow_msr &= ~MSR_FP;
132 vcpu->arch.shadow_msr |= vcpu->arch.shared->msr & MSR_FP;
133#endif
134}
135
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500136/*
137 * Helper function for "full" MSR writes. No need to call this if only
138 * EE/CE/ME/DE/RI are changing.
139 */
Scott Wood4cd35f62011-06-14 18:34:31 -0500140void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
141{
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500142 u32 old_msr = vcpu->arch.shared->msr;
Scott Wood4cd35f62011-06-14 18:34:31 -0500143
Scott Woodd30f6e42011-12-20 15:34:43 +0000144#ifdef CONFIG_KVM_BOOKE_HV
145 new_msr |= MSR_GS;
146#endif
147
Scott Wood4cd35f62011-06-14 18:34:31 -0500148 vcpu->arch.shared->msr = new_msr;
149
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500150 kvmppc_mmu_msr_notify(vcpu, old_msr);
Scott Wood4cd35f62011-06-14 18:34:31 -0500151 kvmppc_vcpu_sync_spe(vcpu);
Alexander Graf7a08c272012-08-16 13:10:16 +0200152 kvmppc_vcpu_sync_fpu(vcpu);
Scott Wood4cd35f62011-06-14 18:34:31 -0500153}
154
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600155static void kvmppc_booke_queue_irqprio(struct kvm_vcpu *vcpu,
156 unsigned int priority)
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600157{
Alexander Graf63460462012-08-08 00:44:52 +0200158 trace_kvm_booke_queue_irqprio(vcpu, priority);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600159 set_bit(priority, &vcpu->arch.pending_exceptions);
160}
161
Liu Yudaf5e272010-02-02 19:44:35 +0800162static void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu,
163 ulong dear_flags, ulong esr_flags)
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600164{
Liu Yudaf5e272010-02-02 19:44:35 +0800165 vcpu->arch.queued_dear = dear_flags;
166 vcpu->arch.queued_esr = esr_flags;
167 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DTLB_MISS);
168}
169
170static void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
171 ulong dear_flags, ulong esr_flags)
172{
173 vcpu->arch.queued_dear = dear_flags;
174 vcpu->arch.queued_esr = esr_flags;
175 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DATA_STORAGE);
176}
177
178static void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
179 ulong esr_flags)
180{
181 vcpu->arch.queued_esr = esr_flags;
182 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_INST_STORAGE);
183}
184
185void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong esr_flags)
186{
187 vcpu->arch.queued_esr = esr_flags;
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600188 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_PROGRAM);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600189}
190
191void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
192{
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600193 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DECREMENTER);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600194}
195
196int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu)
197{
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600198 return test_bit(BOOKE_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600199}
200
Alexander Graf7706664d2009-12-21 20:21:24 +0100201void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu)
202{
203 clear_bit(BOOKE_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions);
204}
205
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600206void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
207 struct kvm_interrupt *irq)
208{
Alexander Grafc5335f12010-08-30 14:03:24 +0200209 unsigned int prio = BOOKE_IRQPRIO_EXTERNAL;
210
211 if (irq->irq == KVM_INTERRUPT_SET_LEVEL)
212 prio = BOOKE_IRQPRIO_EXTERNAL_LEVEL;
213
214 kvmppc_booke_queue_irqprio(vcpu, prio);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600215}
216
Alexander Graf4496f972010-04-07 10:03:25 +0200217void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu,
218 struct kvm_interrupt *irq)
219{
220 clear_bit(BOOKE_IRQPRIO_EXTERNAL, &vcpu->arch.pending_exceptions);
Alexander Grafc5335f12010-08-30 14:03:24 +0200221 clear_bit(BOOKE_IRQPRIO_EXTERNAL_LEVEL, &vcpu->arch.pending_exceptions);
Alexander Graf4496f972010-04-07 10:03:25 +0200222}
223
Bharat Bhushanf61c94b2012-08-08 20:38:19 +0000224static void kvmppc_core_queue_watchdog(struct kvm_vcpu *vcpu)
225{
226 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_WATCHDOG);
227}
228
229static void kvmppc_core_dequeue_watchdog(struct kvm_vcpu *vcpu)
230{
231 clear_bit(BOOKE_IRQPRIO_WATCHDOG, &vcpu->arch.pending_exceptions);
232}
233
Scott Woodd30f6e42011-12-20 15:34:43 +0000234static void set_guest_srr(struct kvm_vcpu *vcpu, unsigned long srr0, u32 srr1)
235{
236#ifdef CONFIG_KVM_BOOKE_HV
237 mtspr(SPRN_GSRR0, srr0);
238 mtspr(SPRN_GSRR1, srr1);
239#else
240 vcpu->arch.shared->srr0 = srr0;
241 vcpu->arch.shared->srr1 = srr1;
242#endif
243}
244
245static void set_guest_csrr(struct kvm_vcpu *vcpu, unsigned long srr0, u32 srr1)
246{
247 vcpu->arch.csrr0 = srr0;
248 vcpu->arch.csrr1 = srr1;
249}
250
251static void set_guest_dsrr(struct kvm_vcpu *vcpu, unsigned long srr0, u32 srr1)
252{
253 if (cpu_has_feature(CPU_FTR_DEBUG_LVL_EXC)) {
254 vcpu->arch.dsrr0 = srr0;
255 vcpu->arch.dsrr1 = srr1;
256 } else {
257 set_guest_csrr(vcpu, srr0, srr1);
258 }
259}
260
261static void set_guest_mcsrr(struct kvm_vcpu *vcpu, unsigned long srr0, u32 srr1)
262{
263 vcpu->arch.mcsrr0 = srr0;
264 vcpu->arch.mcsrr1 = srr1;
265}
266
267static unsigned long get_guest_dear(struct kvm_vcpu *vcpu)
268{
269#ifdef CONFIG_KVM_BOOKE_HV
270 return mfspr(SPRN_GDEAR);
271#else
272 return vcpu->arch.shared->dar;
273#endif
274}
275
276static void set_guest_dear(struct kvm_vcpu *vcpu, unsigned long dear)
277{
278#ifdef CONFIG_KVM_BOOKE_HV
279 mtspr(SPRN_GDEAR, dear);
280#else
281 vcpu->arch.shared->dar = dear;
282#endif
283}
284
285static unsigned long get_guest_esr(struct kvm_vcpu *vcpu)
286{
287#ifdef CONFIG_KVM_BOOKE_HV
288 return mfspr(SPRN_GESR);
289#else
290 return vcpu->arch.shared->esr;
291#endif
292}
293
294static void set_guest_esr(struct kvm_vcpu *vcpu, u32 esr)
295{
296#ifdef CONFIG_KVM_BOOKE_HV
297 mtspr(SPRN_GESR, esr);
298#else
299 vcpu->arch.shared->esr = esr;
300#endif
301}
302
Alexander Graf324b3e62013-01-04 18:28:51 +0100303static unsigned long get_guest_epr(struct kvm_vcpu *vcpu)
304{
305#ifdef CONFIG_KVM_BOOKE_HV
306 return mfspr(SPRN_GEPR);
307#else
308 return vcpu->arch.epr;
309#endif
310}
311
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600312/* Deliver the interrupt of the corresponding priority, if possible. */
313static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,
314 unsigned int priority)
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500315{
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600316 int allowed = 0;
Alexander Graf79300f82012-02-15 19:12:29 +0000317 ulong msr_mask = 0;
Alexander Graf1c810632013-01-04 18:12:48 +0100318 bool update_esr = false, update_dear = false, update_epr = false;
Alexander Graf5c6cedf2010-07-29 14:47:49 +0200319 ulong crit_raw = vcpu->arch.shared->critical;
320 ulong crit_r1 = kvmppc_get_gpr(vcpu, 1);
321 bool crit;
Alexander Grafc5335f12010-08-30 14:03:24 +0200322 bool keep_irq = false;
Scott Woodd30f6e42011-12-20 15:34:43 +0000323 enum int_class int_class;
Mihai Caraman95e90b42012-10-11 06:13:26 +0000324 ulong new_msr = vcpu->arch.shared->msr;
Alexander Graf5c6cedf2010-07-29 14:47:49 +0200325
326 /* Truncate crit indicators in 32 bit mode */
327 if (!(vcpu->arch.shared->msr & MSR_SF)) {
328 crit_raw &= 0xffffffff;
329 crit_r1 &= 0xffffffff;
330 }
331
332 /* Critical section when crit == r1 */
333 crit = (crit_raw == crit_r1);
334 /* ... and we're in supervisor mode */
335 crit = crit && !(vcpu->arch.shared->msr & MSR_PR);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500336
Alexander Grafc5335f12010-08-30 14:03:24 +0200337 if (priority == BOOKE_IRQPRIO_EXTERNAL_LEVEL) {
338 priority = BOOKE_IRQPRIO_EXTERNAL;
339 keep_irq = true;
340 }
341
Alexander Graf1c810632013-01-04 18:12:48 +0100342 if ((priority == BOOKE_IRQPRIO_EXTERNAL) && vcpu->arch.epr_enabled)
343 update_epr = true;
344
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600345 switch (priority) {
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600346 case BOOKE_IRQPRIO_DTLB_MISS:
Liu Yudaf5e272010-02-02 19:44:35 +0800347 case BOOKE_IRQPRIO_DATA_STORAGE:
348 update_dear = true;
349 /* fall through */
350 case BOOKE_IRQPRIO_INST_STORAGE:
351 case BOOKE_IRQPRIO_PROGRAM:
352 update_esr = true;
353 /* fall through */
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600354 case BOOKE_IRQPRIO_ITLB_MISS:
355 case BOOKE_IRQPRIO_SYSCALL:
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600356 case BOOKE_IRQPRIO_FP_UNAVAIL:
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600357 case BOOKE_IRQPRIO_SPE_UNAVAIL:
358 case BOOKE_IRQPRIO_SPE_FP_DATA:
359 case BOOKE_IRQPRIO_SPE_FP_ROUND:
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600360 case BOOKE_IRQPRIO_AP_UNAVAIL:
361 case BOOKE_IRQPRIO_ALIGNMENT:
362 allowed = 1;
Alexander Graf79300f82012-02-15 19:12:29 +0000363 msr_mask = MSR_CE | MSR_ME | MSR_DE;
Scott Woodd30f6e42011-12-20 15:34:43 +0000364 int_class = INT_CLASS_NONCRIT;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500365 break;
Bharat Bhushanf61c94b2012-08-08 20:38:19 +0000366 case BOOKE_IRQPRIO_WATCHDOG:
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600367 case BOOKE_IRQPRIO_CRITICAL:
Alexander Graf4ab96912012-02-15 13:28:48 +0000368 case BOOKE_IRQPRIO_DBELL_CRIT:
Alexander Graf666e7252010-07-29 14:47:43 +0200369 allowed = vcpu->arch.shared->msr & MSR_CE;
Scott Woodd30f6e42011-12-20 15:34:43 +0000370 allowed = allowed && !crit;
Alexander Graf79300f82012-02-15 19:12:29 +0000371 msr_mask = MSR_ME;
Scott Woodd30f6e42011-12-20 15:34:43 +0000372 int_class = INT_CLASS_CRIT;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500373 break;
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600374 case BOOKE_IRQPRIO_MACHINE_CHECK:
Alexander Graf666e7252010-07-29 14:47:43 +0200375 allowed = vcpu->arch.shared->msr & MSR_ME;
Scott Woodd30f6e42011-12-20 15:34:43 +0000376 allowed = allowed && !crit;
Scott Woodd30f6e42011-12-20 15:34:43 +0000377 int_class = INT_CLASS_MC;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500378 break;
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600379 case BOOKE_IRQPRIO_DECREMENTER:
380 case BOOKE_IRQPRIO_FIT:
Scott Wooddfd4d472011-11-17 12:39:59 +0000381 keep_irq = true;
382 /* fall through */
383 case BOOKE_IRQPRIO_EXTERNAL:
Alexander Graf4ab96912012-02-15 13:28:48 +0000384 case BOOKE_IRQPRIO_DBELL:
Alexander Graf666e7252010-07-29 14:47:43 +0200385 allowed = vcpu->arch.shared->msr & MSR_EE;
Alexander Graf5c6cedf2010-07-29 14:47:49 +0200386 allowed = allowed && !crit;
Alexander Graf79300f82012-02-15 19:12:29 +0000387 msr_mask = MSR_CE | MSR_ME | MSR_DE;
Scott Woodd30f6e42011-12-20 15:34:43 +0000388 int_class = INT_CLASS_NONCRIT;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500389 break;
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600390 case BOOKE_IRQPRIO_DEBUG:
Alexander Graf666e7252010-07-29 14:47:43 +0200391 allowed = vcpu->arch.shared->msr & MSR_DE;
Scott Woodd30f6e42011-12-20 15:34:43 +0000392 allowed = allowed && !crit;
Alexander Graf79300f82012-02-15 19:12:29 +0000393 msr_mask = MSR_ME;
Scott Woodd30f6e42011-12-20 15:34:43 +0000394 int_class = INT_CLASS_CRIT;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500395 break;
396 }
397
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600398 if (allowed) {
Scott Woodd30f6e42011-12-20 15:34:43 +0000399 switch (int_class) {
400 case INT_CLASS_NONCRIT:
401 set_guest_srr(vcpu, vcpu->arch.pc,
402 vcpu->arch.shared->msr);
403 break;
404 case INT_CLASS_CRIT:
405 set_guest_csrr(vcpu, vcpu->arch.pc,
406 vcpu->arch.shared->msr);
407 break;
408 case INT_CLASS_DBG:
409 set_guest_dsrr(vcpu, vcpu->arch.pc,
410 vcpu->arch.shared->msr);
411 break;
412 case INT_CLASS_MC:
413 set_guest_mcsrr(vcpu, vcpu->arch.pc,
414 vcpu->arch.shared->msr);
415 break;
416 }
417
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600418 vcpu->arch.pc = vcpu->arch.ivpr | vcpu->arch.ivor[priority];
Liu Yudaf5e272010-02-02 19:44:35 +0800419 if (update_esr == true)
Scott Woodd30f6e42011-12-20 15:34:43 +0000420 set_guest_esr(vcpu, vcpu->arch.queued_esr);
Liu Yudaf5e272010-02-02 19:44:35 +0800421 if (update_dear == true)
Scott Woodd30f6e42011-12-20 15:34:43 +0000422 set_guest_dear(vcpu, vcpu->arch.queued_dear);
Alexander Graf1c810632013-01-04 18:12:48 +0100423 if (update_epr == true)
424 kvm_make_request(KVM_REQ_EPR_EXIT, vcpu);
Mihai Caraman95e90b42012-10-11 06:13:26 +0000425
426 new_msr &= msr_mask;
427#if defined(CONFIG_64BIT)
428 if (vcpu->arch.epcr & SPRN_EPCR_ICM)
429 new_msr |= MSR_CM;
430#endif
431 kvmppc_set_msr(vcpu, new_msr);
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600432
Alexander Grafc5335f12010-08-30 14:03:24 +0200433 if (!keep_irq)
434 clear_bit(priority, &vcpu->arch.pending_exceptions);
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600435 }
436
Scott Woodd30f6e42011-12-20 15:34:43 +0000437#ifdef CONFIG_KVM_BOOKE_HV
438 /*
439 * If an interrupt is pending but masked, raise a guest doorbell
440 * so that we are notified when the guest enables the relevant
441 * MSR bit.
442 */
443 if (vcpu->arch.pending_exceptions & BOOKE_IRQMASK_EE)
444 kvmppc_set_pending_interrupt(vcpu, INT_CLASS_NONCRIT);
445 if (vcpu->arch.pending_exceptions & BOOKE_IRQMASK_CE)
446 kvmppc_set_pending_interrupt(vcpu, INT_CLASS_CRIT);
447 if (vcpu->arch.pending_exceptions & BOOKE_IRQPRIO_MACHINE_CHECK)
448 kvmppc_set_pending_interrupt(vcpu, INT_CLASS_MC);
449#endif
450
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600451 return allowed;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500452}
453
Bharat Bhushanf61c94b2012-08-08 20:38:19 +0000454/*
455 * Return the number of jiffies until the next timeout. If the timeout is
456 * longer than the NEXT_TIMER_MAX_DELTA, then return NEXT_TIMER_MAX_DELTA
457 * because the larger value can break the timer APIs.
458 */
459static unsigned long watchdog_next_timeout(struct kvm_vcpu *vcpu)
460{
461 u64 tb, wdt_tb, wdt_ticks = 0;
462 u64 nr_jiffies = 0;
463 u32 period = TCR_GET_WP(vcpu->arch.tcr);
464
465 wdt_tb = 1ULL << (63 - period);
466 tb = get_tb();
467 /*
468 * The watchdog timeout will hapeen when TB bit corresponding
469 * to watchdog will toggle from 0 to 1.
470 */
471 if (tb & wdt_tb)
472 wdt_ticks = wdt_tb;
473
474 wdt_ticks += wdt_tb - (tb & (wdt_tb - 1));
475
476 /* Convert timebase ticks to jiffies */
477 nr_jiffies = wdt_ticks;
478
479 if (do_div(nr_jiffies, tb_ticks_per_jiffy))
480 nr_jiffies++;
481
482 return min_t(unsigned long long, nr_jiffies, NEXT_TIMER_MAX_DELTA);
483}
484
485static void arm_next_watchdog(struct kvm_vcpu *vcpu)
486{
487 unsigned long nr_jiffies;
488 unsigned long flags;
489
490 /*
491 * If TSR_ENW and TSR_WIS are not set then no need to exit to
492 * userspace, so clear the KVM_REQ_WATCHDOG request.
493 */
494 if ((vcpu->arch.tsr & (TSR_ENW | TSR_WIS)) != (TSR_ENW | TSR_WIS))
495 clear_bit(KVM_REQ_WATCHDOG, &vcpu->requests);
496
497 spin_lock_irqsave(&vcpu->arch.wdt_lock, flags);
498 nr_jiffies = watchdog_next_timeout(vcpu);
499 /*
500 * If the number of jiffies of watchdog timer >= NEXT_TIMER_MAX_DELTA
501 * then do not run the watchdog timer as this can break timer APIs.
502 */
503 if (nr_jiffies < NEXT_TIMER_MAX_DELTA)
504 mod_timer(&vcpu->arch.wdt_timer, jiffies + nr_jiffies);
505 else
506 del_timer(&vcpu->arch.wdt_timer);
507 spin_unlock_irqrestore(&vcpu->arch.wdt_lock, flags);
508}
509
510void kvmppc_watchdog_func(unsigned long data)
511{
512 struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
513 u32 tsr, new_tsr;
514 int final;
515
516 do {
517 new_tsr = tsr = vcpu->arch.tsr;
518 final = 0;
519
520 /* Time out event */
521 if (tsr & TSR_ENW) {
522 if (tsr & TSR_WIS)
523 final = 1;
524 else
525 new_tsr = tsr | TSR_WIS;
526 } else {
527 new_tsr = tsr | TSR_ENW;
528 }
529 } while (cmpxchg(&vcpu->arch.tsr, tsr, new_tsr) != tsr);
530
531 if (new_tsr & TSR_WIS) {
532 smp_wmb();
533 kvm_make_request(KVM_REQ_PENDING_TIMER, vcpu);
534 kvm_vcpu_kick(vcpu);
535 }
536
537 /*
538 * If this is final watchdog expiry and some action is required
539 * then exit to userspace.
540 */
541 if (final && (vcpu->arch.tcr & TCR_WRC_MASK) &&
542 vcpu->arch.watchdog_enabled) {
543 smp_wmb();
544 kvm_make_request(KVM_REQ_WATCHDOG, vcpu);
545 kvm_vcpu_kick(vcpu);
546 }
547
548 /*
549 * Stop running the watchdog timer after final expiration to
550 * prevent the host from being flooded with timers if the
551 * guest sets a short period.
552 * Timers will resume when TSR/TCR is updated next time.
553 */
554 if (!final)
555 arm_next_watchdog(vcpu);
556}
557
Scott Wooddfd4d472011-11-17 12:39:59 +0000558static void update_timer_ints(struct kvm_vcpu *vcpu)
559{
560 if ((vcpu->arch.tcr & TCR_DIE) && (vcpu->arch.tsr & TSR_DIS))
561 kvmppc_core_queue_dec(vcpu);
562 else
563 kvmppc_core_dequeue_dec(vcpu);
Bharat Bhushanf61c94b2012-08-08 20:38:19 +0000564
565 if ((vcpu->arch.tcr & TCR_WIE) && (vcpu->arch.tsr & TSR_WIS))
566 kvmppc_core_queue_watchdog(vcpu);
567 else
568 kvmppc_core_dequeue_watchdog(vcpu);
Scott Wooddfd4d472011-11-17 12:39:59 +0000569}
570
Scott Woodc59a6a32011-11-08 18:23:25 -0600571static void kvmppc_core_check_exceptions(struct kvm_vcpu *vcpu)
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500572{
573 unsigned long *pending = &vcpu->arch.pending_exceptions;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500574 unsigned int priority;
575
Hollis Blanchard9ab80842008-11-05 09:36:22 -0600576 priority = __ffs(*pending);
Alexander Graf8b3a00f2012-02-16 14:12:46 +0000577 while (priority < BOOKE_IRQPRIO_MAX) {
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600578 if (kvmppc_booke_irqprio_deliver(vcpu, priority))
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500579 break;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500580
581 priority = find_next_bit(pending,
582 BITS_PER_BYTE * sizeof(*pending),
583 priority + 1);
584 }
Alexander Graf90bba352010-07-29 14:47:51 +0200585
586 /* Tell the guest about our interrupt status */
Scott Wood29ac26e2011-11-08 18:23:27 -0600587 vcpu->arch.shared->int_pending = !!*pending;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500588}
589
Scott Woodc59a6a32011-11-08 18:23:25 -0600590/* Check pending exceptions and deliver one, if possible. */
Alexander Grafa8e4ef82012-02-16 14:07:37 +0000591int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
Scott Woodc59a6a32011-11-08 18:23:25 -0600592{
Alexander Grafa8e4ef82012-02-16 14:07:37 +0000593 int r = 0;
Scott Woodc59a6a32011-11-08 18:23:25 -0600594 WARN_ON_ONCE(!irqs_disabled());
595
596 kvmppc_core_check_exceptions(vcpu);
597
Alexander Grafb8c649a2012-12-20 04:52:39 +0000598 if (vcpu->requests) {
599 /* Exception delivery raised request; start over */
600 return 1;
601 }
602
Scott Woodc59a6a32011-11-08 18:23:25 -0600603 if (vcpu->arch.shared->msr & MSR_WE) {
604 local_irq_enable();
605 kvm_vcpu_block(vcpu);
Alexander Graf966cd0f2012-03-14 16:55:08 +0100606 clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
Scott Woodc59a6a32011-11-08 18:23:25 -0600607 local_irq_disable();
608
609 kvmppc_set_exit_type(vcpu, EMULATED_MTMSRWE_EXITS);
Alexander Grafa8e4ef82012-02-16 14:07:37 +0000610 r = 1;
Scott Woodc59a6a32011-11-08 18:23:25 -0600611 };
Alexander Grafa8e4ef82012-02-16 14:07:37 +0000612
613 return r;
614}
615
Alexander Graf7c973a22012-08-13 12:50:35 +0200616int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
Alexander Graf4ffc6352012-08-08 20:31:13 +0200617{
Alexander Graf7c973a22012-08-13 12:50:35 +0200618 int r = 1; /* Indicate we want to get back into the guest */
619
Alexander Graf2d8185d2012-08-10 12:31:12 +0200620 if (kvm_check_request(KVM_REQ_PENDING_TIMER, vcpu))
621 update_timer_ints(vcpu);
Alexander Graf862d31f2012-07-31 00:19:50 +0200622#if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
Alexander Graf2d8185d2012-08-10 12:31:12 +0200623 if (kvm_check_request(KVM_REQ_TLB_FLUSH, vcpu))
624 kvmppc_core_flush_tlb(vcpu);
Alexander Graf862d31f2012-07-31 00:19:50 +0200625#endif
Alexander Graf7c973a22012-08-13 12:50:35 +0200626
Bharat Bhushanf61c94b2012-08-08 20:38:19 +0000627 if (kvm_check_request(KVM_REQ_WATCHDOG, vcpu)) {
628 vcpu->run->exit_reason = KVM_EXIT_WATCHDOG;
629 r = 0;
630 }
631
Alexander Graf1c810632013-01-04 18:12:48 +0100632 if (kvm_check_request(KVM_REQ_EPR_EXIT, vcpu)) {
633 vcpu->run->epr.epr = 0;
634 vcpu->arch.epr_needed = true;
635 vcpu->run->exit_reason = KVM_EXIT_EPR;
636 r = 0;
637 }
638
Alexander Graf7c973a22012-08-13 12:50:35 +0200639 return r;
Alexander Graf4ffc6352012-08-08 20:31:13 +0200640}
641
Paul Mackerrasdf6909e52011-06-29 00:19:50 +0000642int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
643{
Alexander Graf7ee78852012-08-13 12:44:41 +0200644 int ret, s;
Scott Wood8fae8452011-12-20 15:34:45 +0000645#ifdef CONFIG_PPC_FPU
646 unsigned int fpscr;
647 int fpexc_mode;
648 u64 fpr[32];
649#endif
Paul Mackerrasdf6909e52011-06-29 00:19:50 +0000650
Alexander Grafaf8f38b2011-08-10 13:57:08 +0200651 if (!vcpu->arch.sane) {
652 kvm_run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
653 return -EINVAL;
654 }
655
Paul Mackerrasdf6909e52011-06-29 00:19:50 +0000656 local_irq_disable();
Alexander Graf7ee78852012-08-13 12:44:41 +0200657 s = kvmppc_prepare_to_enter(vcpu);
658 if (s <= 0) {
Alexander Graf24afa37b2012-08-12 12:42:30 +0200659 local_irq_enable();
Alexander Graf7ee78852012-08-13 12:44:41 +0200660 ret = s;
Scott Wood1d1ef222011-11-08 16:11:59 -0600661 goto out;
662 }
Alexander Grafbd2be682012-08-13 01:04:19 +0200663 kvmppc_lazy_ee_enable();
Scott Wood1d1ef222011-11-08 16:11:59 -0600664
Paul Mackerrasdf6909e52011-06-29 00:19:50 +0000665 kvm_guest_enter();
Scott Wood8fae8452011-12-20 15:34:45 +0000666
667#ifdef CONFIG_PPC_FPU
668 /* Save userspace FPU state in stack */
669 enable_kernel_fp();
670 memcpy(fpr, current->thread.fpr, sizeof(current->thread.fpr));
671 fpscr = current->thread.fpscr.val;
672 fpexc_mode = current->thread.fpexc_mode;
673
674 /* Restore guest FPU state to thread */
675 memcpy(current->thread.fpr, vcpu->arch.fpr, sizeof(vcpu->arch.fpr));
676 current->thread.fpscr.val = vcpu->arch.fpscr;
677
678 /*
679 * Since we can't trap on MSR_FP in GS-mode, we consider the guest
680 * as always using the FPU. Kernel usage of FP (via
681 * enable_kernel_fp()) in this thread must not occur while
682 * vcpu->fpu_active is set.
683 */
684 vcpu->fpu_active = 1;
685
686 kvmppc_load_guest_fp(vcpu);
687#endif
688
Paul Mackerrasdf6909e52011-06-29 00:19:50 +0000689 ret = __kvmppc_vcpu_run(kvm_run, vcpu);
Scott Wood8fae8452011-12-20 15:34:45 +0000690
Alexander Graf24afa37b2012-08-12 12:42:30 +0200691 /* No need for kvm_guest_exit. It's done in handle_exit.
692 We also get here with interrupts enabled. */
693
Scott Wood8fae8452011-12-20 15:34:45 +0000694#ifdef CONFIG_PPC_FPU
695 kvmppc_save_guest_fp(vcpu);
696
697 vcpu->fpu_active = 0;
698
699 /* Save guest FPU state from thread */
700 memcpy(vcpu->arch.fpr, current->thread.fpr, sizeof(vcpu->arch.fpr));
701 vcpu->arch.fpscr = current->thread.fpscr.val;
702
703 /* Restore userspace FPU state from stack */
704 memcpy(current->thread.fpr, fpr, sizeof(current->thread.fpr));
705 current->thread.fpscr.val = fpscr;
706 current->thread.fpexc_mode = fpexc_mode;
707#endif
708
Scott Wood1d1ef222011-11-08 16:11:59 -0600709out:
Alexander Grafd69c6432012-08-08 20:44:20 +0200710 vcpu->mode = OUTSIDE_GUEST_MODE;
Paul Mackerrasdf6909e52011-06-29 00:19:50 +0000711 return ret;
712}
713
Scott Woodd30f6e42011-12-20 15:34:43 +0000714static int emulation_exit(struct kvm_run *run, struct kvm_vcpu *vcpu)
715{
716 enum emulation_result er;
717
718 er = kvmppc_emulate_instruction(run, vcpu);
719 switch (er) {
720 case EMULATE_DONE:
721 /* don't overwrite subtypes, just account kvm_stats */
722 kvmppc_account_exit_stat(vcpu, EMULATED_INST_EXITS);
723 /* Future optimization: only reload non-volatiles if
724 * they were actually modified by emulation. */
725 return RESUME_GUEST_NV;
726
727 case EMULATE_DO_DCR:
728 run->exit_reason = KVM_EXIT_DCR;
729 return RESUME_HOST;
730
731 case EMULATE_FAIL:
Scott Woodd30f6e42011-12-20 15:34:43 +0000732 printk(KERN_CRIT "%s: emulation at %lx failed (%08x)\n",
733 __func__, vcpu->arch.pc, vcpu->arch.last_inst);
734 /* For debugging, encode the failing instruction and
735 * report it to userspace. */
736 run->hw.hardware_exit_reason = ~0ULL << 32;
737 run->hw.hardware_exit_reason |= vcpu->arch.last_inst;
Alexander Grafd1ff5492012-02-16 13:24:03 +0000738 kvmppc_core_queue_program(vcpu, ESR_PIL);
Scott Woodd30f6e42011-12-20 15:34:43 +0000739 return RESUME_HOST;
740
741 default:
742 BUG();
743 }
744}
745
Alexander Graf4e642cc2012-02-20 23:57:26 +0100746static void kvmppc_fill_pt_regs(struct pt_regs *regs)
747{
748 ulong r1, ip, msr, lr;
749
750 asm("mr %0, 1" : "=r"(r1));
751 asm("mflr %0" : "=r"(lr));
752 asm("mfmsr %0" : "=r"(msr));
753 asm("bl 1f; 1: mflr %0" : "=r"(ip));
754
755 memset(regs, 0, sizeof(*regs));
756 regs->gpr[1] = r1;
757 regs->nip = ip;
758 regs->msr = msr;
759 regs->link = lr;
760}
761
Bharat Bhushan6328e592012-06-20 05:56:53 +0000762/*
763 * For interrupts needed to be handled by host interrupt handlers,
764 * corresponding host handler are called from here in similar way
765 * (but not exact) as they are called from low level handler
766 * (such as from arch/powerpc/kernel/head_fsl_booke.S).
767 */
Alexander Graf4e642cc2012-02-20 23:57:26 +0100768static void kvmppc_restart_interrupt(struct kvm_vcpu *vcpu,
769 unsigned int exit_nr)
770{
771 struct pt_regs regs;
772
773 switch (exit_nr) {
774 case BOOKE_INTERRUPT_EXTERNAL:
775 kvmppc_fill_pt_regs(&regs);
776 do_IRQ(&regs);
777 break;
778 case BOOKE_INTERRUPT_DECREMENTER:
779 kvmppc_fill_pt_regs(&regs);
780 timer_interrupt(&regs);
781 break;
782#if defined(CONFIG_PPC_FSL_BOOK3E) || defined(CONFIG_PPC_BOOK3E_64)
783 case BOOKE_INTERRUPT_DOORBELL:
784 kvmppc_fill_pt_regs(&regs);
785 doorbell_exception(&regs);
786 break;
787#endif
788 case BOOKE_INTERRUPT_MACHINE_CHECK:
789 /* FIXME */
790 break;
Alexander Graf7cc1e8e2012-02-22 16:26:34 +0100791 case BOOKE_INTERRUPT_PERFORMANCE_MONITOR:
792 kvmppc_fill_pt_regs(&regs);
793 performance_monitor_exception(&regs);
794 break;
Bharat Bhushan6328e592012-06-20 05:56:53 +0000795 case BOOKE_INTERRUPT_WATCHDOG:
796 kvmppc_fill_pt_regs(&regs);
797#ifdef CONFIG_BOOKE_WDT
798 WatchdogException(&regs);
799#else
800 unknown_exception(&regs);
801#endif
802 break;
803 case BOOKE_INTERRUPT_CRITICAL:
804 unknown_exception(&regs);
805 break;
Alexander Graf4e642cc2012-02-20 23:57:26 +0100806 }
807}
808
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500809/**
810 * kvmppc_handle_exit
811 *
812 * Return value is in the form (errcode<<2 | RESUME_FLAG_HOST | RESUME_FLAG_NV)
813 */
814int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
815 unsigned int exit_nr)
816{
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500817 int r = RESUME_HOST;
Alexander Graf7ee78852012-08-13 12:44:41 +0200818 int s;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500819
Hollis Blanchard73e75b42008-12-02 15:51:57 -0600820 /* update before a new last_exit_type is rewritten */
821 kvmppc_update_timing_stats(vcpu);
822
Alexander Graf4e642cc2012-02-20 23:57:26 +0100823 /* restart interrupts if they were meant for the host */
824 kvmppc_restart_interrupt(vcpu, exit_nr);
Scott Woodd30f6e42011-12-20 15:34:43 +0000825
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500826 local_irq_enable();
827
Alexander Graf97c95052012-08-02 15:10:00 +0200828 trace_kvm_exit(exit_nr, vcpu);
Alexander Graf706fb732012-08-12 11:29:09 +0200829 kvm_guest_exit();
Alexander Graf97c95052012-08-02 15:10:00 +0200830
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500831 run->exit_reason = KVM_EXIT_UNKNOWN;
832 run->ready_for_interrupt_injection = 1;
833
834 switch (exit_nr) {
835 case BOOKE_INTERRUPT_MACHINE_CHECK:
Alexander Grafc35c9d82012-02-20 12:21:18 +0100836 printk("MACHINE CHECK: %lx\n", mfspr(SPRN_MCSR));
837 kvmppc_dump_vcpu(vcpu);
838 /* For debugging, send invalid exit reason to user space */
839 run->hw.hardware_exit_reason = ~1ULL << 32;
840 run->hw.hardware_exit_reason |= mfspr(SPRN_MCSR);
841 r = RESUME_HOST;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500842 break;
843
844 case BOOKE_INTERRUPT_EXTERNAL:
Hollis Blanchard7b701592008-12-02 15:51:58 -0600845 kvmppc_account_exit(vcpu, EXT_INTR_EXITS);
Hollis Blanchard1b6766c2008-11-05 09:36:21 -0600846 r = RESUME_GUEST;
847 break;
848
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500849 case BOOKE_INTERRUPT_DECREMENTER:
Hollis Blanchard7b701592008-12-02 15:51:58 -0600850 kvmppc_account_exit(vcpu, DEC_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500851 r = RESUME_GUEST;
852 break;
853
Bharat Bhushan6328e592012-06-20 05:56:53 +0000854 case BOOKE_INTERRUPT_WATCHDOG:
855 r = RESUME_GUEST;
856 break;
857
Scott Woodd30f6e42011-12-20 15:34:43 +0000858 case BOOKE_INTERRUPT_DOORBELL:
859 kvmppc_account_exit(vcpu, DBELL_EXITS);
Scott Woodd30f6e42011-12-20 15:34:43 +0000860 r = RESUME_GUEST;
861 break;
862
863 case BOOKE_INTERRUPT_GUEST_DBELL_CRIT:
864 kvmppc_account_exit(vcpu, GDBELL_EXITS);
865
866 /*
867 * We are here because there is a pending guest interrupt
868 * which could not be delivered as MSR_CE or MSR_ME was not
869 * set. Once we break from here we will retry delivery.
870 */
871 r = RESUME_GUEST;
872 break;
873
874 case BOOKE_INTERRUPT_GUEST_DBELL:
875 kvmppc_account_exit(vcpu, GDBELL_EXITS);
876
877 /*
878 * We are here because there is a pending guest interrupt
879 * which could not be delivered as MSR_EE was not set. Once
880 * we break from here we will retry delivery.
881 */
882 r = RESUME_GUEST;
883 break;
884
Alexander Graf95f2e922012-02-20 22:45:12 +0100885 case BOOKE_INTERRUPT_PERFORMANCE_MONITOR:
886 r = RESUME_GUEST;
887 break;
888
Scott Woodd30f6e42011-12-20 15:34:43 +0000889 case BOOKE_INTERRUPT_HV_PRIV:
890 r = emulation_exit(run, vcpu);
891 break;
892
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500893 case BOOKE_INTERRUPT_PROGRAM:
Scott Woodd30f6e42011-12-20 15:34:43 +0000894 if (vcpu->arch.shared->msr & (MSR_PR | MSR_GS)) {
Alexander Graf0268597c2012-02-20 12:33:22 +0100895 /*
896 * Program traps generated by user-level software must
897 * be handled by the guest kernel.
898 *
899 * In GS mode, hypervisor privileged instructions trap
900 * on BOOKE_INTERRUPT_HV_PRIV, not here, so these are
901 * actual program interrupts, handled by the guest.
902 */
Liu Yudaf5e272010-02-02 19:44:35 +0800903 kvmppc_core_queue_program(vcpu, vcpu->arch.fault_esr);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500904 r = RESUME_GUEST;
Hollis Blanchard7b701592008-12-02 15:51:58 -0600905 kvmppc_account_exit(vcpu, USR_PR_INST);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500906 break;
907 }
908
Scott Woodd30f6e42011-12-20 15:34:43 +0000909 r = emulation_exit(run, vcpu);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500910 break;
911
Christian Ehrhardtde368dc2008-04-29 18:18:23 +0200912 case BOOKE_INTERRUPT_FP_UNAVAIL:
Hollis Blanchardd4cf3892008-11-05 09:36:23 -0600913 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_FP_UNAVAIL);
Hollis Blanchard7b701592008-12-02 15:51:58 -0600914 kvmppc_account_exit(vcpu, FP_UNAVAIL);
Christian Ehrhardtde368dc2008-04-29 18:18:23 +0200915 r = RESUME_GUEST;
916 break;
917
Scott Wood4cd35f62011-06-14 18:34:31 -0500918#ifdef CONFIG_SPE
919 case BOOKE_INTERRUPT_SPE_UNAVAIL: {
920 if (vcpu->arch.shared->msr & MSR_SPE)
921 kvmppc_vcpu_enable_spe(vcpu);
922 else
923 kvmppc_booke_queue_irqprio(vcpu,
924 BOOKE_IRQPRIO_SPE_UNAVAIL);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600925 r = RESUME_GUEST;
926 break;
Scott Wood4cd35f62011-06-14 18:34:31 -0500927 }
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600928
929 case BOOKE_INTERRUPT_SPE_FP_DATA:
930 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_SPE_FP_DATA);
931 r = RESUME_GUEST;
932 break;
933
934 case BOOKE_INTERRUPT_SPE_FP_ROUND:
935 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_SPE_FP_ROUND);
936 r = RESUME_GUEST;
937 break;
Scott Wood4cd35f62011-06-14 18:34:31 -0500938#else
939 case BOOKE_INTERRUPT_SPE_UNAVAIL:
940 /*
941 * Guest wants SPE, but host kernel doesn't support it. Send
942 * an "unimplemented operation" program check to the guest.
943 */
944 kvmppc_core_queue_program(vcpu, ESR_PUO | ESR_SPV);
945 r = RESUME_GUEST;
946 break;
947
948 /*
949 * These really should never happen without CONFIG_SPE,
950 * as we should never enable the real MSR[SPE] in the guest.
951 */
952 case BOOKE_INTERRUPT_SPE_FP_DATA:
953 case BOOKE_INTERRUPT_SPE_FP_ROUND:
954 printk(KERN_CRIT "%s: unexpected SPE interrupt %u at %08lx\n",
955 __func__, exit_nr, vcpu->arch.pc);
956 run->hw.hardware_exit_reason = exit_nr;
957 r = RESUME_HOST;
958 break;
959#endif
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600960
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500961 case BOOKE_INTERRUPT_DATA_STORAGE:
Liu Yudaf5e272010-02-02 19:44:35 +0800962 kvmppc_core_queue_data_storage(vcpu, vcpu->arch.fault_dear,
963 vcpu->arch.fault_esr);
Hollis Blanchard7b701592008-12-02 15:51:58 -0600964 kvmppc_account_exit(vcpu, DSI_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500965 r = RESUME_GUEST;
966 break;
967
968 case BOOKE_INTERRUPT_INST_STORAGE:
Liu Yudaf5e272010-02-02 19:44:35 +0800969 kvmppc_core_queue_inst_storage(vcpu, vcpu->arch.fault_esr);
Hollis Blanchard7b701592008-12-02 15:51:58 -0600970 kvmppc_account_exit(vcpu, ISI_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500971 r = RESUME_GUEST;
972 break;
973
Scott Woodd30f6e42011-12-20 15:34:43 +0000974#ifdef CONFIG_KVM_BOOKE_HV
975 case BOOKE_INTERRUPT_HV_SYSCALL:
976 if (!(vcpu->arch.shared->msr & MSR_PR)) {
977 kvmppc_set_gpr(vcpu, 3, kvmppc_kvm_pv(vcpu));
978 } else {
979 /*
980 * hcall from guest userspace -- send privileged
981 * instruction program check.
982 */
983 kvmppc_core_queue_program(vcpu, ESR_PPR);
984 }
985
986 r = RESUME_GUEST;
987 break;
988#else
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500989 case BOOKE_INTERRUPT_SYSCALL:
Alexander Graf2a342ed2010-07-29 14:47:48 +0200990 if (!(vcpu->arch.shared->msr & MSR_PR) &&
991 (((u32)kvmppc_get_gpr(vcpu, 0)) == KVM_SC_MAGIC_R0)) {
992 /* KVM PV hypercalls */
993 kvmppc_set_gpr(vcpu, 3, kvmppc_kvm_pv(vcpu));
994 r = RESUME_GUEST;
995 } else {
996 /* Guest syscalls */
997 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_SYSCALL);
998 }
Hollis Blanchard7b701592008-12-02 15:51:58 -0600999 kvmppc_account_exit(vcpu, SYSCALL_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001000 r = RESUME_GUEST;
1001 break;
Scott Woodd30f6e42011-12-20 15:34:43 +00001002#endif
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001003
1004 case BOOKE_INTERRUPT_DTLB_MISS: {
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001005 unsigned long eaddr = vcpu->arch.fault_dear;
Hollis Blanchard7924bd42008-12-02 15:51:55 -06001006 int gtlb_index;
Hollis Blanchard475e7cd2009-01-03 16:23:00 -06001007 gpa_t gpaddr;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001008 gfn_t gfn;
1009
Alexander Grafbf7ca4b2012-02-15 23:40:00 +00001010#ifdef CONFIG_KVM_E500V2
Scott Wooda4cd8b22011-06-14 18:34:41 -05001011 if (!(vcpu->arch.shared->msr & MSR_PR) &&
1012 (eaddr & PAGE_MASK) == vcpu->arch.magic_page_ea) {
1013 kvmppc_map_magic(vcpu);
1014 kvmppc_account_exit(vcpu, DTLB_VIRT_MISS_EXITS);
1015 r = RESUME_GUEST;
1016
1017 break;
1018 }
1019#endif
1020
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001021 /* Check the guest TLB. */
Hollis Blanchardfa86b8d2009-01-03 16:23:03 -06001022 gtlb_index = kvmppc_mmu_dtlb_index(vcpu, eaddr);
Hollis Blanchard7924bd42008-12-02 15:51:55 -06001023 if (gtlb_index < 0) {
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001024 /* The guest didn't have a mapping for it. */
Liu Yudaf5e272010-02-02 19:44:35 +08001025 kvmppc_core_queue_dtlb_miss(vcpu,
1026 vcpu->arch.fault_dear,
1027 vcpu->arch.fault_esr);
Hollis Blanchardb52a6382009-01-03 16:23:11 -06001028 kvmppc_mmu_dtlb_miss(vcpu);
Hollis Blanchard7b701592008-12-02 15:51:58 -06001029 kvmppc_account_exit(vcpu, DTLB_REAL_MISS_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001030 r = RESUME_GUEST;
1031 break;
1032 }
1033
Hollis Blanchardbe8d1ca2009-01-03 16:23:02 -06001034 gpaddr = kvmppc_mmu_xlate(vcpu, gtlb_index, eaddr);
Hollis Blanchard475e7cd2009-01-03 16:23:00 -06001035 gfn = gpaddr >> PAGE_SHIFT;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001036
1037 if (kvm_is_visible_gfn(vcpu->kvm, gfn)) {
1038 /* The guest TLB had a mapping, but the shadow TLB
1039 * didn't, and it is RAM. This could be because:
1040 * a) the entry is mapping the host kernel, or
1041 * b) the guest used a large mapping which we're faking
1042 * Either way, we need to satisfy the fault without
1043 * invoking the guest. */
Hollis Blanchard58a96212009-01-03 16:23:01 -06001044 kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index);
Hollis Blanchard7b701592008-12-02 15:51:58 -06001045 kvmppc_account_exit(vcpu, DTLB_VIRT_MISS_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001046 r = RESUME_GUEST;
1047 } else {
1048 /* Guest has mapped and accessed a page which is not
1049 * actually RAM. */
Hollis Blanchard475e7cd2009-01-03 16:23:00 -06001050 vcpu->arch.paddr_accessed = gpaddr;
Alexander Graf6020c0f2012-03-12 02:26:30 +01001051 vcpu->arch.vaddr_accessed = eaddr;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001052 r = kvmppc_emulate_mmio(run, vcpu);
Hollis Blanchard7b701592008-12-02 15:51:58 -06001053 kvmppc_account_exit(vcpu, MMIO_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001054 }
1055
1056 break;
1057 }
1058
1059 case BOOKE_INTERRUPT_ITLB_MISS: {
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001060 unsigned long eaddr = vcpu->arch.pc;
Hollis Blanchard89168612008-12-02 15:51:53 -06001061 gpa_t gpaddr;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001062 gfn_t gfn;
Hollis Blanchard7924bd42008-12-02 15:51:55 -06001063 int gtlb_index;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001064
1065 r = RESUME_GUEST;
1066
1067 /* Check the guest TLB. */
Hollis Blanchardfa86b8d2009-01-03 16:23:03 -06001068 gtlb_index = kvmppc_mmu_itlb_index(vcpu, eaddr);
Hollis Blanchard7924bd42008-12-02 15:51:55 -06001069 if (gtlb_index < 0) {
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001070 /* The guest didn't have a mapping for it. */
Hollis Blanchardd4cf3892008-11-05 09:36:23 -06001071 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_ITLB_MISS);
Hollis Blanchardb52a6382009-01-03 16:23:11 -06001072 kvmppc_mmu_itlb_miss(vcpu);
Hollis Blanchard7b701592008-12-02 15:51:58 -06001073 kvmppc_account_exit(vcpu, ITLB_REAL_MISS_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001074 break;
1075 }
1076
Hollis Blanchard7b701592008-12-02 15:51:58 -06001077 kvmppc_account_exit(vcpu, ITLB_VIRT_MISS_EXITS);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001078
Hollis Blanchardbe8d1ca2009-01-03 16:23:02 -06001079 gpaddr = kvmppc_mmu_xlate(vcpu, gtlb_index, eaddr);
Hollis Blanchard89168612008-12-02 15:51:53 -06001080 gfn = gpaddr >> PAGE_SHIFT;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001081
1082 if (kvm_is_visible_gfn(vcpu->kvm, gfn)) {
1083 /* The guest TLB had a mapping, but the shadow TLB
1084 * didn't. This could be because:
1085 * a) the entry is mapping the host kernel, or
1086 * b) the guest used a large mapping which we're faking
1087 * Either way, we need to satisfy the fault without
1088 * invoking the guest. */
Hollis Blanchard58a96212009-01-03 16:23:01 -06001089 kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001090 } else {
1091 /* Guest mapped and leaped at non-RAM! */
Hollis Blanchardd4cf3892008-11-05 09:36:23 -06001092 kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_MACHINE_CHECK);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001093 }
1094
1095 break;
1096 }
1097
Hollis Blanchard6a0ab732008-07-25 13:54:49 -05001098 case BOOKE_INTERRUPT_DEBUG: {
1099 u32 dbsr;
1100
1101 vcpu->arch.pc = mfspr(SPRN_CSRR0);
1102
1103 /* clear IAC events in DBSR register */
1104 dbsr = mfspr(SPRN_DBSR);
1105 dbsr &= DBSR_IAC1 | DBSR_IAC2 | DBSR_IAC3 | DBSR_IAC4;
1106 mtspr(SPRN_DBSR, dbsr);
1107
1108 run->exit_reason = KVM_EXIT_DEBUG;
Hollis Blanchard7b701592008-12-02 15:51:58 -06001109 kvmppc_account_exit(vcpu, DEBUG_EXITS);
Hollis Blanchard6a0ab732008-07-25 13:54:49 -05001110 r = RESUME_HOST;
1111 break;
1112 }
1113
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001114 default:
1115 printk(KERN_EMERG "exit_nr %d\n", exit_nr);
1116 BUG();
1117 }
1118
Alexander Grafa8e4ef82012-02-16 14:07:37 +00001119 /*
1120 * To avoid clobbering exit_reason, only check for signals if we
1121 * aren't already exiting to userspace for some other reason.
1122 */
Alexander Graf03660ba2012-02-28 12:00:41 +01001123 if (!(r & RESUME_HOST)) {
1124 local_irq_disable();
Alexander Graf7ee78852012-08-13 12:44:41 +02001125 s = kvmppc_prepare_to_enter(vcpu);
1126 if (s <= 0) {
Alexander Graf24afa37b2012-08-12 12:42:30 +02001127 local_irq_enable();
Alexander Graf7ee78852012-08-13 12:44:41 +02001128 r = (s << 2) | RESUME_HOST | (r & RESUME_FLAG_NV);
Alexander Graf24afa37b2012-08-12 12:42:30 +02001129 } else {
Alexander Grafbd2be682012-08-13 01:04:19 +02001130 kvmppc_lazy_ee_enable();
Alexander Graf03660ba2012-02-28 12:00:41 +01001131 }
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001132 }
1133
1134 return r;
1135}
1136
1137/* Initial guest state: 16MB mapping 0 -> 0, PC = 0, MSR = 0, R1 = 16MB */
1138int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
1139{
Hollis Blanchard082decf2010-08-07 10:33:56 -07001140 int i;
Alexander Grafaf8f38b2011-08-10 13:57:08 +02001141 int r;
Hollis Blanchard082decf2010-08-07 10:33:56 -07001142
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001143 vcpu->arch.pc = 0;
Scott Woodb5904972011-11-08 18:23:30 -06001144 vcpu->arch.shared->pir = vcpu->vcpu_id;
Alexander Graf8e5b26b2010-01-08 02:58:01 +01001145 kvmppc_set_gpr(vcpu, 1, (16<<20) - 8); /* -8 for the callee-save LR slot */
Scott Woodd30f6e42011-12-20 15:34:43 +00001146 kvmppc_set_msr(vcpu, 0);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001147
Scott Woodd30f6e42011-12-20 15:34:43 +00001148#ifndef CONFIG_KVM_BOOKE_HV
1149 vcpu->arch.shadow_msr = MSR_USER | MSR_DE | MSR_IS | MSR_DS;
Hollis Blanchard49dd2c42008-07-25 13:54:53 -05001150 vcpu->arch.shadow_pid = 1;
Scott Woodd30f6e42011-12-20 15:34:43 +00001151 vcpu->arch.shared->msr = 0;
1152#endif
Hollis Blanchard49dd2c42008-07-25 13:54:53 -05001153
Hollis Blanchard082decf2010-08-07 10:33:56 -07001154 /* Eye-catching numbers so we know if the guest takes an interrupt
1155 * before it's programmed its own IVPR/IVORs. */
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001156 vcpu->arch.ivpr = 0x55550000;
Hollis Blanchard082decf2010-08-07 10:33:56 -07001157 for (i = 0; i < BOOKE_IRQPRIO_MAX; i++)
1158 vcpu->arch.ivor[i] = 0x7700 | i * 4;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001159
Hollis Blanchard73e75b42008-12-02 15:51:57 -06001160 kvmppc_init_timing_stats(vcpu);
1161
Alexander Grafaf8f38b2011-08-10 13:57:08 +02001162 r = kvmppc_core_vcpu_setup(vcpu);
1163 kvmppc_sanity_check(vcpu);
1164 return r;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001165}
1166
Bharat Bhushanf61c94b2012-08-08 20:38:19 +00001167int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu)
1168{
1169 /* setup watchdog timer once */
1170 spin_lock_init(&vcpu->arch.wdt_lock);
1171 setup_timer(&vcpu->arch.wdt_timer, kvmppc_watchdog_func,
1172 (unsigned long)vcpu);
1173
1174 return 0;
1175}
1176
1177void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
1178{
1179 del_timer_sync(&vcpu->arch.wdt_timer);
1180}
1181
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001182int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
1183{
1184 int i;
1185
1186 regs->pc = vcpu->arch.pc;
Alexander Graf992b5b22010-01-08 02:58:02 +01001187 regs->cr = kvmppc_get_cr(vcpu);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001188 regs->ctr = vcpu->arch.ctr;
1189 regs->lr = vcpu->arch.lr;
Alexander Graf992b5b22010-01-08 02:58:02 +01001190 regs->xer = kvmppc_get_xer(vcpu);
Alexander Graf666e7252010-07-29 14:47:43 +02001191 regs->msr = vcpu->arch.shared->msr;
Alexander Grafde7906c2010-07-29 14:47:46 +02001192 regs->srr0 = vcpu->arch.shared->srr0;
1193 regs->srr1 = vcpu->arch.shared->srr1;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001194 regs->pid = vcpu->arch.pid;
Alexander Grafa73a9592010-07-29 14:47:47 +02001195 regs->sprg0 = vcpu->arch.shared->sprg0;
1196 regs->sprg1 = vcpu->arch.shared->sprg1;
1197 regs->sprg2 = vcpu->arch.shared->sprg2;
1198 regs->sprg3 = vcpu->arch.shared->sprg3;
Scott Woodb5904972011-11-08 18:23:30 -06001199 regs->sprg4 = vcpu->arch.shared->sprg4;
1200 regs->sprg5 = vcpu->arch.shared->sprg5;
1201 regs->sprg6 = vcpu->arch.shared->sprg6;
1202 regs->sprg7 = vcpu->arch.shared->sprg7;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001203
1204 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
Alexander Graf8e5b26b2010-01-08 02:58:01 +01001205 regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001206
1207 return 0;
1208}
1209
1210int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
1211{
1212 int i;
1213
1214 vcpu->arch.pc = regs->pc;
Alexander Graf992b5b22010-01-08 02:58:02 +01001215 kvmppc_set_cr(vcpu, regs->cr);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001216 vcpu->arch.ctr = regs->ctr;
1217 vcpu->arch.lr = regs->lr;
Alexander Graf992b5b22010-01-08 02:58:02 +01001218 kvmppc_set_xer(vcpu, regs->xer);
Hollis Blanchardb8fd68a2008-11-05 09:36:20 -06001219 kvmppc_set_msr(vcpu, regs->msr);
Alexander Grafde7906c2010-07-29 14:47:46 +02001220 vcpu->arch.shared->srr0 = regs->srr0;
1221 vcpu->arch.shared->srr1 = regs->srr1;
Scott Wood5ce941e2011-04-27 17:24:21 -05001222 kvmppc_set_pid(vcpu, regs->pid);
Alexander Grafa73a9592010-07-29 14:47:47 +02001223 vcpu->arch.shared->sprg0 = regs->sprg0;
1224 vcpu->arch.shared->sprg1 = regs->sprg1;
1225 vcpu->arch.shared->sprg2 = regs->sprg2;
1226 vcpu->arch.shared->sprg3 = regs->sprg3;
Scott Woodb5904972011-11-08 18:23:30 -06001227 vcpu->arch.shared->sprg4 = regs->sprg4;
1228 vcpu->arch.shared->sprg5 = regs->sprg5;
1229 vcpu->arch.shared->sprg6 = regs->sprg6;
1230 vcpu->arch.shared->sprg7 = regs->sprg7;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001231
Alexander Graf8e5b26b2010-01-08 02:58:01 +01001232 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
1233 kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001234
1235 return 0;
1236}
1237
Scott Wood5ce941e2011-04-27 17:24:21 -05001238static void get_sregs_base(struct kvm_vcpu *vcpu,
1239 struct kvm_sregs *sregs)
1240{
1241 u64 tb = get_tb();
1242
1243 sregs->u.e.features |= KVM_SREGS_E_BASE;
1244
1245 sregs->u.e.csrr0 = vcpu->arch.csrr0;
1246 sregs->u.e.csrr1 = vcpu->arch.csrr1;
1247 sregs->u.e.mcsr = vcpu->arch.mcsr;
Scott Woodd30f6e42011-12-20 15:34:43 +00001248 sregs->u.e.esr = get_guest_esr(vcpu);
1249 sregs->u.e.dear = get_guest_dear(vcpu);
Scott Wood5ce941e2011-04-27 17:24:21 -05001250 sregs->u.e.tsr = vcpu->arch.tsr;
1251 sregs->u.e.tcr = vcpu->arch.tcr;
1252 sregs->u.e.dec = kvmppc_get_dec(vcpu, tb);
1253 sregs->u.e.tb = tb;
1254 sregs->u.e.vrsave = vcpu->arch.vrsave;
1255}
1256
1257static int set_sregs_base(struct kvm_vcpu *vcpu,
1258 struct kvm_sregs *sregs)
1259{
1260 if (!(sregs->u.e.features & KVM_SREGS_E_BASE))
1261 return 0;
1262
1263 vcpu->arch.csrr0 = sregs->u.e.csrr0;
1264 vcpu->arch.csrr1 = sregs->u.e.csrr1;
1265 vcpu->arch.mcsr = sregs->u.e.mcsr;
Scott Woodd30f6e42011-12-20 15:34:43 +00001266 set_guest_esr(vcpu, sregs->u.e.esr);
1267 set_guest_dear(vcpu, sregs->u.e.dear);
Scott Wood5ce941e2011-04-27 17:24:21 -05001268 vcpu->arch.vrsave = sregs->u.e.vrsave;
Scott Wooddfd4d472011-11-17 12:39:59 +00001269 kvmppc_set_tcr(vcpu, sregs->u.e.tcr);
Scott Wood5ce941e2011-04-27 17:24:21 -05001270
Scott Wooddfd4d472011-11-17 12:39:59 +00001271 if (sregs->u.e.update_special & KVM_SREGS_E_UPDATE_DEC) {
Scott Wood5ce941e2011-04-27 17:24:21 -05001272 vcpu->arch.dec = sregs->u.e.dec;
Scott Wooddfd4d472011-11-17 12:39:59 +00001273 kvmppc_emulate_dec(vcpu);
1274 }
Scott Wood5ce941e2011-04-27 17:24:21 -05001275
1276 if (sregs->u.e.update_special & KVM_SREGS_E_UPDATE_TSR) {
Bharat Bhushanf61c94b2012-08-08 20:38:19 +00001277 u32 old_tsr = vcpu->arch.tsr;
1278
Scott Wooddfd4d472011-11-17 12:39:59 +00001279 vcpu->arch.tsr = sregs->u.e.tsr;
Bharat Bhushanf61c94b2012-08-08 20:38:19 +00001280
1281 if ((old_tsr ^ vcpu->arch.tsr) & (TSR_ENW | TSR_WIS))
1282 arm_next_watchdog(vcpu);
1283
Scott Wooddfd4d472011-11-17 12:39:59 +00001284 update_timer_ints(vcpu);
Scott Wood5ce941e2011-04-27 17:24:21 -05001285 }
1286
1287 return 0;
1288}
1289
1290static void get_sregs_arch206(struct kvm_vcpu *vcpu,
1291 struct kvm_sregs *sregs)
1292{
1293 sregs->u.e.features |= KVM_SREGS_E_ARCH206;
1294
Scott Wood841741f2011-09-02 17:39:37 -05001295 sregs->u.e.pir = vcpu->vcpu_id;
Scott Wood5ce941e2011-04-27 17:24:21 -05001296 sregs->u.e.mcsrr0 = vcpu->arch.mcsrr0;
1297 sregs->u.e.mcsrr1 = vcpu->arch.mcsrr1;
1298 sregs->u.e.decar = vcpu->arch.decar;
1299 sregs->u.e.ivpr = vcpu->arch.ivpr;
1300}
1301
1302static int set_sregs_arch206(struct kvm_vcpu *vcpu,
1303 struct kvm_sregs *sregs)
1304{
1305 if (!(sregs->u.e.features & KVM_SREGS_E_ARCH206))
1306 return 0;
1307
Scott Wood841741f2011-09-02 17:39:37 -05001308 if (sregs->u.e.pir != vcpu->vcpu_id)
Scott Wood5ce941e2011-04-27 17:24:21 -05001309 return -EINVAL;
1310
1311 vcpu->arch.mcsrr0 = sregs->u.e.mcsrr0;
1312 vcpu->arch.mcsrr1 = sregs->u.e.mcsrr1;
1313 vcpu->arch.decar = sregs->u.e.decar;
1314 vcpu->arch.ivpr = sregs->u.e.ivpr;
1315
1316 return 0;
1317}
1318
1319void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
1320{
1321 sregs->u.e.features |= KVM_SREGS_E_IVOR;
1322
1323 sregs->u.e.ivor_low[0] = vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL];
1324 sregs->u.e.ivor_low[1] = vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK];
1325 sregs->u.e.ivor_low[2] = vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE];
1326 sregs->u.e.ivor_low[3] = vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE];
1327 sregs->u.e.ivor_low[4] = vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL];
1328 sregs->u.e.ivor_low[5] = vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT];
1329 sregs->u.e.ivor_low[6] = vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM];
1330 sregs->u.e.ivor_low[7] = vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL];
1331 sregs->u.e.ivor_low[8] = vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL];
1332 sregs->u.e.ivor_low[9] = vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL];
1333 sregs->u.e.ivor_low[10] = vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER];
1334 sregs->u.e.ivor_low[11] = vcpu->arch.ivor[BOOKE_IRQPRIO_FIT];
1335 sregs->u.e.ivor_low[12] = vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG];
1336 sregs->u.e.ivor_low[13] = vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS];
1337 sregs->u.e.ivor_low[14] = vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS];
1338 sregs->u.e.ivor_low[15] = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
1339}
1340
1341int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
1342{
1343 if (!(sregs->u.e.features & KVM_SREGS_E_IVOR))
1344 return 0;
1345
1346 vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL] = sregs->u.e.ivor_low[0];
1347 vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK] = sregs->u.e.ivor_low[1];
1348 vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE] = sregs->u.e.ivor_low[2];
1349 vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE] = sregs->u.e.ivor_low[3];
1350 vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL] = sregs->u.e.ivor_low[4];
1351 vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT] = sregs->u.e.ivor_low[5];
1352 vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM] = sregs->u.e.ivor_low[6];
1353 vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL] = sregs->u.e.ivor_low[7];
1354 vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL] = sregs->u.e.ivor_low[8];
1355 vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL] = sregs->u.e.ivor_low[9];
1356 vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER] = sregs->u.e.ivor_low[10];
1357 vcpu->arch.ivor[BOOKE_IRQPRIO_FIT] = sregs->u.e.ivor_low[11];
1358 vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG] = sregs->u.e.ivor_low[12];
1359 vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS] = sregs->u.e.ivor_low[13];
1360 vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS] = sregs->u.e.ivor_low[14];
1361 vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG] = sregs->u.e.ivor_low[15];
1362
1363 return 0;
1364}
1365
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001366int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
1367 struct kvm_sregs *sregs)
1368{
Scott Wood5ce941e2011-04-27 17:24:21 -05001369 sregs->pvr = vcpu->arch.pvr;
1370
1371 get_sregs_base(vcpu, sregs);
1372 get_sregs_arch206(vcpu, sregs);
1373 kvmppc_core_get_sregs(vcpu, sregs);
1374 return 0;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001375}
1376
1377int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
1378 struct kvm_sregs *sregs)
1379{
Scott Wood5ce941e2011-04-27 17:24:21 -05001380 int ret;
1381
1382 if (vcpu->arch.pvr != sregs->pvr)
1383 return -EINVAL;
1384
1385 ret = set_sregs_base(vcpu, sregs);
1386 if (ret < 0)
1387 return ret;
1388
1389 ret = set_sregs_arch206(vcpu, sregs);
1390 if (ret < 0)
1391 return ret;
1392
1393 return kvmppc_core_set_sregs(vcpu, sregs);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001394}
1395
Paul Mackerras31f34382011-12-12 12:26:50 +00001396int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
1397{
Bharat Bhushan6df8d3f2012-08-08 21:17:55 +00001398 int r = -EINVAL;
1399
1400 switch (reg->id) {
1401 case KVM_REG_PPC_IAC1:
1402 case KVM_REG_PPC_IAC2:
1403 case KVM_REG_PPC_IAC3:
1404 case KVM_REG_PPC_IAC4: {
1405 int iac = reg->id - KVM_REG_PPC_IAC1;
1406 r = copy_to_user((u64 __user *)(long)reg->addr,
1407 &vcpu->arch.dbg_reg.iac[iac], sizeof(u64));
1408 break;
1409 }
1410 case KVM_REG_PPC_DAC1:
1411 case KVM_REG_PPC_DAC2: {
1412 int dac = reg->id - KVM_REG_PPC_DAC1;
1413 r = copy_to_user((u64 __user *)(long)reg->addr,
1414 &vcpu->arch.dbg_reg.dac[dac], sizeof(u64));
1415 break;
1416 }
Alexander Graf324b3e62013-01-04 18:28:51 +01001417 case KVM_REG_PPC_EPR: {
1418 u32 epr = get_guest_epr(vcpu);
1419 r = put_user(epr, (u32 __user *)(long)reg->addr);
1420 break;
1421 }
Mihai Caraman352df1d2012-10-11 06:13:29 +00001422#if defined(CONFIG_64BIT)
1423 case KVM_REG_PPC_EPCR:
1424 r = put_user(vcpu->arch.epcr, (u32 __user *)(long)reg->addr);
1425 break;
1426#endif
Bharat Bhushan6df8d3f2012-08-08 21:17:55 +00001427 default:
1428 break;
1429 }
1430 return r;
Paul Mackerras31f34382011-12-12 12:26:50 +00001431}
1432
1433int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
1434{
Bharat Bhushan6df8d3f2012-08-08 21:17:55 +00001435 int r = -EINVAL;
1436
1437 switch (reg->id) {
1438 case KVM_REG_PPC_IAC1:
1439 case KVM_REG_PPC_IAC2:
1440 case KVM_REG_PPC_IAC3:
1441 case KVM_REG_PPC_IAC4: {
1442 int iac = reg->id - KVM_REG_PPC_IAC1;
1443 r = copy_from_user(&vcpu->arch.dbg_reg.iac[iac],
1444 (u64 __user *)(long)reg->addr, sizeof(u64));
1445 break;
1446 }
1447 case KVM_REG_PPC_DAC1:
1448 case KVM_REG_PPC_DAC2: {
1449 int dac = reg->id - KVM_REG_PPC_DAC1;
1450 r = copy_from_user(&vcpu->arch.dbg_reg.dac[dac],
1451 (u64 __user *)(long)reg->addr, sizeof(u64));
1452 break;
1453 }
Alexander Graf324b3e62013-01-04 18:28:51 +01001454 case KVM_REG_PPC_EPR: {
1455 u32 new_epr;
1456 r = get_user(new_epr, (u32 __user *)(long)reg->addr);
1457 if (!r)
1458 kvmppc_set_epr(vcpu, new_epr);
1459 break;
1460 }
Mihai Caraman352df1d2012-10-11 06:13:29 +00001461#if defined(CONFIG_64BIT)
1462 case KVM_REG_PPC_EPCR: {
1463 u32 new_epcr;
1464 r = get_user(new_epcr, (u32 __user *)(long)reg->addr);
1465 if (r == 0)
1466 kvmppc_set_epcr(vcpu, new_epcr);
1467 break;
1468 }
1469#endif
Bharat Bhushan6df8d3f2012-08-08 21:17:55 +00001470 default:
1471 break;
1472 }
1473 return r;
Paul Mackerras31f34382011-12-12 12:26:50 +00001474}
1475
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001476int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
1477{
1478 return -ENOTSUPP;
1479}
1480
1481int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
1482{
1483 return -ENOTSUPP;
1484}
1485
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001486int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
1487 struct kvm_translation *tr)
1488{
Avi Kivity98001d82010-05-13 11:05:49 +03001489 int r;
1490
Avi Kivity98001d82010-05-13 11:05:49 +03001491 r = kvmppc_core_vcpu_translate(vcpu, tr);
Avi Kivity98001d82010-05-13 11:05:49 +03001492 return r;
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001493}
Hollis Blanchardd9fbd032008-11-05 09:36:13 -06001494
Alexander Graf4e755752009-10-30 05:47:01 +00001495int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
1496{
1497 return -ENOTSUPP;
1498}
1499
Paul Mackerrasa66b48c2012-09-11 13:27:46 +00001500void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
1501 struct kvm_memory_slot *dont)
1502{
1503}
1504
1505int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
1506 unsigned long npages)
1507{
1508 return 0;
1509}
1510
Paul Mackerrasf9e05542011-06-29 00:19:22 +00001511int kvmppc_core_prepare_memory_region(struct kvm *kvm,
Paul Mackerrasa66b48c2012-09-11 13:27:46 +00001512 struct kvm_memory_slot *memslot,
Paul Mackerrasf9e05542011-06-29 00:19:22 +00001513 struct kvm_userspace_memory_region *mem)
1514{
1515 return 0;
1516}
1517
1518void kvmppc_core_commit_memory_region(struct kvm *kvm,
Paul Mackerrasdfe49db2012-09-11 13:28:18 +00001519 struct kvm_userspace_memory_region *mem,
1520 struct kvm_memory_slot old)
1521{
1522}
1523
1524void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
Paul Mackerrasf9e05542011-06-29 00:19:22 +00001525{
1526}
1527
Mihai Caraman38f98822012-10-11 06:13:27 +00001528void kvmppc_set_epcr(struct kvm_vcpu *vcpu, u32 new_epcr)
1529{
1530#if defined(CONFIG_64BIT)
1531 vcpu->arch.epcr = new_epcr;
1532#ifdef CONFIG_KVM_BOOKE_HV
1533 vcpu->arch.shadow_epcr &= ~SPRN_EPCR_GICM;
1534 if (vcpu->arch.epcr & SPRN_EPCR_ICM)
1535 vcpu->arch.shadow_epcr |= SPRN_EPCR_GICM;
1536#endif
1537#endif
1538}
1539
Scott Wooddfd4d472011-11-17 12:39:59 +00001540void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr)
1541{
1542 vcpu->arch.tcr = new_tcr;
Bharat Bhushanf61c94b2012-08-08 20:38:19 +00001543 arm_next_watchdog(vcpu);
Scott Wooddfd4d472011-11-17 12:39:59 +00001544 update_timer_ints(vcpu);
1545}
1546
1547void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits)
1548{
1549 set_bits(tsr_bits, &vcpu->arch.tsr);
1550 smp_wmb();
1551 kvm_make_request(KVM_REQ_PENDING_TIMER, vcpu);
1552 kvm_vcpu_kick(vcpu);
1553}
1554
1555void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits)
1556{
1557 clear_bits(tsr_bits, &vcpu->arch.tsr);
Bharat Bhushanf61c94b2012-08-08 20:38:19 +00001558
1559 /*
1560 * We may have stopped the watchdog due to
1561 * being stuck on final expiration.
1562 */
1563 if (tsr_bits & (TSR_ENW | TSR_WIS))
1564 arm_next_watchdog(vcpu);
1565
Scott Wooddfd4d472011-11-17 12:39:59 +00001566 update_timer_ints(vcpu);
1567}
1568
1569void kvmppc_decrementer_func(unsigned long data)
1570{
1571 struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
1572
Bharat Bhushan21bd0002012-05-20 23:21:23 +00001573 if (vcpu->arch.tcr & TCR_ARE) {
1574 vcpu->arch.dec = vcpu->arch.decar;
1575 kvmppc_emulate_dec(vcpu);
1576 }
1577
Scott Wooddfd4d472011-11-17 12:39:59 +00001578 kvmppc_set_tsr_bits(vcpu, TSR_DIS);
1579}
1580
Scott Wood94fa9d92011-12-20 15:34:22 +00001581void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
1582{
Paul Mackerrasa47d72f2012-09-20 19:35:51 +00001583 vcpu->cpu = smp_processor_id();
Scott Woodd30f6e42011-12-20 15:34:43 +00001584 current->thread.kvm_vcpu = vcpu;
Scott Wood94fa9d92011-12-20 15:34:22 +00001585}
1586
1587void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu)
1588{
Scott Woodd30f6e42011-12-20 15:34:43 +00001589 current->thread.kvm_vcpu = NULL;
Paul Mackerrasa47d72f2012-09-20 19:35:51 +00001590 vcpu->cpu = -1;
Scott Wood94fa9d92011-12-20 15:34:22 +00001591}
1592
Stephen Rothwell2986b8c2009-06-02 11:46:14 +10001593int __init kvmppc_booke_init(void)
Hollis Blanchardd9fbd032008-11-05 09:36:13 -06001594{
Scott Woodd30f6e42011-12-20 15:34:43 +00001595#ifndef CONFIG_KVM_BOOKE_HV
Hollis Blanchardd9fbd032008-11-05 09:36:13 -06001596 unsigned long ivor[16];
1597 unsigned long max_ivor = 0;
1598 int i;
1599
1600 /* We install our own exception handlers by hijacking IVPR. IVPR must
1601 * be 16-bit aligned, so we need a 64KB allocation. */
1602 kvmppc_booke_handlers = __get_free_pages(GFP_KERNEL | __GFP_ZERO,
1603 VCPU_SIZE_ORDER);
1604 if (!kvmppc_booke_handlers)
1605 return -ENOMEM;
1606
1607 /* XXX make sure our handlers are smaller than Linux's */
1608
1609 /* Copy our interrupt handlers to match host IVORs. That way we don't
1610 * have to swap the IVORs on every guest/host transition. */
1611 ivor[0] = mfspr(SPRN_IVOR0);
1612 ivor[1] = mfspr(SPRN_IVOR1);
1613 ivor[2] = mfspr(SPRN_IVOR2);
1614 ivor[3] = mfspr(SPRN_IVOR3);
1615 ivor[4] = mfspr(SPRN_IVOR4);
1616 ivor[5] = mfspr(SPRN_IVOR5);
1617 ivor[6] = mfspr(SPRN_IVOR6);
1618 ivor[7] = mfspr(SPRN_IVOR7);
1619 ivor[8] = mfspr(SPRN_IVOR8);
1620 ivor[9] = mfspr(SPRN_IVOR9);
1621 ivor[10] = mfspr(SPRN_IVOR10);
1622 ivor[11] = mfspr(SPRN_IVOR11);
1623 ivor[12] = mfspr(SPRN_IVOR12);
1624 ivor[13] = mfspr(SPRN_IVOR13);
1625 ivor[14] = mfspr(SPRN_IVOR14);
1626 ivor[15] = mfspr(SPRN_IVOR15);
1627
1628 for (i = 0; i < 16; i++) {
1629 if (ivor[i] > max_ivor)
1630 max_ivor = ivor[i];
1631
1632 memcpy((void *)kvmppc_booke_handlers + ivor[i],
1633 kvmppc_handlers_start + i * kvmppc_handler_len,
1634 kvmppc_handler_len);
1635 }
1636 flush_icache_range(kvmppc_booke_handlers,
1637 kvmppc_booke_handlers + max_ivor + kvmppc_handler_len);
Scott Woodd30f6e42011-12-20 15:34:43 +00001638#endif /* !BOOKE_HV */
Hollis Blancharddb93f572008-11-05 09:36:18 -06001639 return 0;
Hollis Blanchardd9fbd032008-11-05 09:36:13 -06001640}
1641
Hollis Blancharddb93f572008-11-05 09:36:18 -06001642void __exit kvmppc_booke_exit(void)
Hollis Blanchardd9fbd032008-11-05 09:36:13 -06001643{
1644 free_pages(kvmppc_booke_handlers, VCPU_SIZE_ORDER);
1645 kvm_exit();
1646}