blob: 23367a7e44c3ea054daa1e68aecdb0a4dedaf05e [file] [log] [blame]
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001/*
2 * Copyright (C) 2009. SUSE Linux Products GmbH. All rights reserved.
3 *
4 * Authors:
5 * Alexander Graf <agraf@suse.de>
6 * Kevin Wolf <mail@kevin-wolf.de>
7 * Paul Mackerras <paulus@samba.org>
8 *
9 * Description:
10 * Functions relating to running KVM on Book 3S processors where
11 * we don't have access to hypervisor mode, and we run the guest
12 * in problem state (user mode).
13 *
14 * This file is derived from arch/powerpc/kvm/44x.c,
15 * by Hollis Blanchard <hollisb@us.ibm.com>.
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License, version 2, as
19 * published by the Free Software Foundation.
20 */
21
22#include <linux/kvm_host.h>
Paul Gortmaker93087942011-07-29 16:19:31 +100023#include <linux/export.h>
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000024#include <linux/err.h>
25#include <linux/slab.h>
26
27#include <asm/reg.h>
28#include <asm/cputable.h>
29#include <asm/cacheflush.h>
30#include <asm/tlbflush.h>
31#include <asm/uaccess.h>
32#include <asm/io.h>
33#include <asm/kvm_ppc.h>
34#include <asm/kvm_book3s.h>
35#include <asm/mmu_context.h>
Benjamin Herrenschmidt95327d02012-04-01 17:35:53 +000036#include <asm/switch_to.h>
Ian Munsiea413f472012-12-03 18:36:13 +000037#include <asm/firmware.h>
Paul Mackerrasdeb26c22013-02-04 18:11:44 +000038#include <asm/hvcall.h>
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000039#include <linux/gfp.h>
40#include <linux/sched.h>
41#include <linux/vmalloc.h>
42#include <linux/highmem.h>
Aneesh Kumar K.V2ba9f0d2013-10-07 22:17:59 +053043#include <linux/module.h>
Alexander Graf398a76c2013-12-09 13:53:42 +010044#include <linux/miscdevice.h>
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000045
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +053046#include "book3s.h"
Aneesh Kumar K.V72c12532013-10-07 22:17:57 +053047
48#define CREATE_TRACE_POINTS
49#include "trace_pr.h"
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000050
51/* #define EXIT_DEBUG */
52/* #define DEBUG_EXT */
53
54static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
55 ulong msr);
Alexander Graf616dff82014-04-29 16:48:44 +020056static void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000057
58/* Some compatibility defines */
59#ifdef CONFIG_PPC_BOOK3S_32
60#define MSR_USER32 MSR_USER
61#define MSR_USER64 MSR_USER
62#define HW_PAGE_SIZE PAGE_SIZE
63#endif
64
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +053065static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000066{
67#ifdef CONFIG_PPC_BOOK3S_64
Alexander Graf468a12c2011-12-09 14:44:13 +010068 struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
69 memcpy(svcpu->slb, to_book3s(vcpu)->slb_shadow, sizeof(svcpu->slb));
Alexander Graf468a12c2011-12-09 14:44:13 +010070 svcpu->slb_max = to_book3s(vcpu)->slb_shadow_max;
Alexander Graf40fdd8c2013-11-29 02:29:00 +010071 svcpu->in_use = 0;
Alexander Graf468a12c2011-12-09 14:44:13 +010072 svcpu_put(svcpu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000073#endif
Paul Mackerrasa47d72f2012-09-20 19:35:51 +000074 vcpu->cpu = smp_processor_id();
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000075#ifdef CONFIG_PPC_BOOK3S_32
Paul Mackerras3ff95502013-09-20 14:52:49 +100076 current->thread.kvm_shadow_vcpu = vcpu->arch.shadow_vcpu;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000077#endif
78}
79
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +053080static void kvmppc_core_vcpu_put_pr(struct kvm_vcpu *vcpu)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000081{
82#ifdef CONFIG_PPC_BOOK3S_64
Alexander Graf468a12c2011-12-09 14:44:13 +010083 struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
Alexander Graf40fdd8c2013-11-29 02:29:00 +010084 if (svcpu->in_use) {
85 kvmppc_copy_from_svcpu(vcpu, svcpu);
86 }
Alexander Graf468a12c2011-12-09 14:44:13 +010087 memcpy(to_book3s(vcpu)->slb_shadow, svcpu->slb, sizeof(svcpu->slb));
Alexander Graf468a12c2011-12-09 14:44:13 +010088 to_book3s(vcpu)->slb_shadow_max = svcpu->slb_max;
89 svcpu_put(svcpu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000090#endif
91
Paul Mackerras28c483b2012-11-04 18:16:46 +000092 kvmppc_giveup_ext(vcpu, MSR_FP | MSR_VEC | MSR_VSX);
Alexander Grafe14e7a12014-04-22 12:26:58 +020093 kvmppc_giveup_fac(vcpu, FSCR_TAR_LG);
Paul Mackerrasa47d72f2012-09-20 19:35:51 +000094 vcpu->cpu = -1;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +000095}
96
Paul Mackerrasa2d56022013-09-20 14:52:43 +100097/* Copy data needed by real-mode code from vcpu to shadow vcpu */
98void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
99 struct kvm_vcpu *vcpu)
100{
101 svcpu->gpr[0] = vcpu->arch.gpr[0];
102 svcpu->gpr[1] = vcpu->arch.gpr[1];
103 svcpu->gpr[2] = vcpu->arch.gpr[2];
104 svcpu->gpr[3] = vcpu->arch.gpr[3];
105 svcpu->gpr[4] = vcpu->arch.gpr[4];
106 svcpu->gpr[5] = vcpu->arch.gpr[5];
107 svcpu->gpr[6] = vcpu->arch.gpr[6];
108 svcpu->gpr[7] = vcpu->arch.gpr[7];
109 svcpu->gpr[8] = vcpu->arch.gpr[8];
110 svcpu->gpr[9] = vcpu->arch.gpr[9];
111 svcpu->gpr[10] = vcpu->arch.gpr[10];
112 svcpu->gpr[11] = vcpu->arch.gpr[11];
113 svcpu->gpr[12] = vcpu->arch.gpr[12];
114 svcpu->gpr[13] = vcpu->arch.gpr[13];
115 svcpu->cr = vcpu->arch.cr;
116 svcpu->xer = vcpu->arch.xer;
117 svcpu->ctr = vcpu->arch.ctr;
118 svcpu->lr = vcpu->arch.lr;
119 svcpu->pc = vcpu->arch.pc;
Alexander Graf616dff82014-04-29 16:48:44 +0200120#ifdef CONFIG_PPC_BOOK3S_64
121 svcpu->shadow_fscr = vcpu->arch.shadow_fscr;
122#endif
Alexander Graf40fdd8c2013-11-29 02:29:00 +0100123 svcpu->in_use = true;
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000124}
125
126/* Copy data touched by real-mode code from shadow vcpu back to vcpu */
127void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
128 struct kvmppc_book3s_shadow_vcpu *svcpu)
129{
Alexander Graf40fdd8c2013-11-29 02:29:00 +0100130 /*
131 * vcpu_put would just call us again because in_use hasn't
132 * been updated yet.
133 */
134 preempt_disable();
135
136 /*
137 * Maybe we were already preempted and synced the svcpu from
138 * our preempt notifiers. Don't bother touching this svcpu then.
139 */
140 if (!svcpu->in_use)
141 goto out;
142
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000143 vcpu->arch.gpr[0] = svcpu->gpr[0];
144 vcpu->arch.gpr[1] = svcpu->gpr[1];
145 vcpu->arch.gpr[2] = svcpu->gpr[2];
146 vcpu->arch.gpr[3] = svcpu->gpr[3];
147 vcpu->arch.gpr[4] = svcpu->gpr[4];
148 vcpu->arch.gpr[5] = svcpu->gpr[5];
149 vcpu->arch.gpr[6] = svcpu->gpr[6];
150 vcpu->arch.gpr[7] = svcpu->gpr[7];
151 vcpu->arch.gpr[8] = svcpu->gpr[8];
152 vcpu->arch.gpr[9] = svcpu->gpr[9];
153 vcpu->arch.gpr[10] = svcpu->gpr[10];
154 vcpu->arch.gpr[11] = svcpu->gpr[11];
155 vcpu->arch.gpr[12] = svcpu->gpr[12];
156 vcpu->arch.gpr[13] = svcpu->gpr[13];
157 vcpu->arch.cr = svcpu->cr;
158 vcpu->arch.xer = svcpu->xer;
159 vcpu->arch.ctr = svcpu->ctr;
160 vcpu->arch.lr = svcpu->lr;
161 vcpu->arch.pc = svcpu->pc;
162 vcpu->arch.shadow_srr1 = svcpu->shadow_srr1;
163 vcpu->arch.fault_dar = svcpu->fault_dar;
164 vcpu->arch.fault_dsisr = svcpu->fault_dsisr;
165 vcpu->arch.last_inst = svcpu->last_inst;
Alexander Graf616dff82014-04-29 16:48:44 +0200166#ifdef CONFIG_PPC_BOOK3S_64
167 vcpu->arch.shadow_fscr = svcpu->shadow_fscr;
168#endif
Alexander Graf40fdd8c2013-11-29 02:29:00 +0100169 svcpu->in_use = false;
170
171out:
172 preempt_enable();
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000173}
174
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530175static int kvmppc_core_check_requests_pr(struct kvm_vcpu *vcpu)
Alexander Graf03d25c52012-08-10 12:28:50 +0200176{
Alexander Graf7c973a22012-08-13 12:50:35 +0200177 int r = 1; /* Indicate we want to get back into the guest */
178
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200179 /* We misuse TLB_FLUSH to indicate that we want to clear
180 all shadow cache entries */
181 if (kvm_check_request(KVM_REQ_TLB_FLUSH, vcpu))
182 kvmppc_mmu_pte_flush(vcpu, 0, 0);
Alexander Graf7c973a22012-08-13 12:50:35 +0200183
184 return r;
Alexander Graf03d25c52012-08-10 12:28:50 +0200185}
186
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200187/************* MMU Notifiers *************/
Paul Mackerras491d6ec2013-09-20 14:52:54 +1000188static void do_kvm_unmap_hva(struct kvm *kvm, unsigned long start,
189 unsigned long end)
190{
191 long i;
192 struct kvm_vcpu *vcpu;
193 struct kvm_memslots *slots;
194 struct kvm_memory_slot *memslot;
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200195
Paul Mackerras491d6ec2013-09-20 14:52:54 +1000196 slots = kvm_memslots(kvm);
197 kvm_for_each_memslot(memslot, slots) {
198 unsigned long hva_start, hva_end;
199 gfn_t gfn, gfn_end;
200
201 hva_start = max(start, memslot->userspace_addr);
202 hva_end = min(end, memslot->userspace_addr +
203 (memslot->npages << PAGE_SHIFT));
204 if (hva_start >= hva_end)
205 continue;
206 /*
207 * {gfn(page) | page intersects with [hva_start, hva_end)} =
208 * {gfn, gfn+1, ..., gfn_end-1}.
209 */
210 gfn = hva_to_gfn_memslot(hva_start, memslot);
211 gfn_end = hva_to_gfn_memslot(hva_end + PAGE_SIZE - 1, memslot);
212 kvm_for_each_vcpu(i, vcpu, kvm)
213 kvmppc_mmu_pte_pflush(vcpu, gfn << PAGE_SHIFT,
214 gfn_end << PAGE_SHIFT);
215 }
216}
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200217
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530218static int kvm_unmap_hva_pr(struct kvm *kvm, unsigned long hva)
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200219{
220 trace_kvm_unmap_hva(hva);
221
Paul Mackerras491d6ec2013-09-20 14:52:54 +1000222 do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE);
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200223
224 return 0;
225}
226
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530227static int kvm_unmap_hva_range_pr(struct kvm *kvm, unsigned long start,
228 unsigned long end)
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200229{
Paul Mackerras491d6ec2013-09-20 14:52:54 +1000230 do_kvm_unmap_hva(kvm, start, end);
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200231
232 return 0;
233}
234
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530235static int kvm_age_hva_pr(struct kvm *kvm, unsigned long hva)
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200236{
237 /* XXX could be more clever ;) */
238 return 0;
239}
240
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530241static int kvm_test_age_hva_pr(struct kvm *kvm, unsigned long hva)
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200242{
243 /* XXX could be more clever ;) */
244 return 0;
245}
246
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530247static void kvm_set_spte_hva_pr(struct kvm *kvm, unsigned long hva, pte_t pte)
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200248{
249 /* The page will get remapped properly on its next fault */
Paul Mackerras491d6ec2013-09-20 14:52:54 +1000250 do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE);
Alexander Graf9b0cb3c2012-08-10 13:23:55 +0200251}
252
253/*****************************************/
254
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000255static void kvmppc_recalc_shadow_msr(struct kvm_vcpu *vcpu)
256{
Alexander Graf5deb8e72014-04-24 13:46:24 +0200257 ulong guest_msr = kvmppc_get_msr(vcpu);
258 ulong smsr = guest_msr;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000259
260 /* Guest MSR values */
Aneesh Kumar K.Ve5ee5422014-05-05 08:39:44 +0530261 smsr &= MSR_FE0 | MSR_FE1 | MSR_SF | MSR_SE | MSR_BE | MSR_LE;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000262 /* Process MSR values */
263 smsr |= MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_PR | MSR_EE;
264 /* External providers the guest reserved */
Alexander Graf5deb8e72014-04-24 13:46:24 +0200265 smsr |= (guest_msr & vcpu->arch.guest_owned_ext);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000266 /* 64-bit Process MSR values */
267#ifdef CONFIG_PPC_BOOK3S_64
268 smsr |= MSR_ISF | MSR_HV;
269#endif
270 vcpu->arch.shadow_msr = smsr;
271}
272
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530273static void kvmppc_set_msr_pr(struct kvm_vcpu *vcpu, u64 msr)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000274{
Alexander Graf5deb8e72014-04-24 13:46:24 +0200275 ulong old_msr = kvmppc_get_msr(vcpu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000276
277#ifdef EXIT_DEBUG
278 printk(KERN_INFO "KVM: Set MSR to 0x%llx\n", msr);
279#endif
280
281 msr &= to_book3s(vcpu)->msr_mask;
Alexander Graf5deb8e72014-04-24 13:46:24 +0200282 kvmppc_set_msr_fast(vcpu, msr);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000283 kvmppc_recalc_shadow_msr(vcpu);
284
285 if (msr & MSR_POW) {
286 if (!vcpu->arch.pending_exceptions) {
287 kvm_vcpu_block(vcpu);
Alexander Graf966cd0f2012-03-14 16:55:08 +0100288 clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000289 vcpu->stat.halt_wakeup++;
290
291 /* Unset POW bit after we woke up */
292 msr &= ~MSR_POW;
Alexander Graf5deb8e72014-04-24 13:46:24 +0200293 kvmppc_set_msr_fast(vcpu, msr);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000294 }
295 }
296
Alexander Graf5deb8e72014-04-24 13:46:24 +0200297 if ((kvmppc_get_msr(vcpu) & (MSR_PR|MSR_IR|MSR_DR)) !=
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000298 (old_msr & (MSR_PR|MSR_IR|MSR_DR))) {
299 kvmppc_mmu_flush_segments(vcpu);
300 kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu));
301
302 /* Preload magic page segment when in kernel mode */
303 if (!(msr & MSR_PR) && vcpu->arch.magic_page_pa) {
304 struct kvm_vcpu_arch *a = &vcpu->arch;
305
306 if (msr & MSR_DR)
307 kvmppc_mmu_map_segment(vcpu, a->magic_page_ea);
308 else
309 kvmppc_mmu_map_segment(vcpu, a->magic_page_pa);
310 }
311 }
312
Benjamin Herrenschmidtbbcc9c02012-03-13 21:52:44 +0000313 /*
314 * When switching from 32 to 64-bit, we may have a stale 32-bit
315 * magic page around, we need to flush it. Typically 32-bit magic
316 * page will be instanciated when calling into RTAS. Note: We
317 * assume that such transition only happens while in kernel mode,
318 * ie, we never transition from user 32-bit to kernel 64-bit with
319 * a 32-bit magic page around.
320 */
321 if (vcpu->arch.magic_page_pa &&
322 !(old_msr & MSR_PR) && !(old_msr & MSR_SF) && (msr & MSR_SF)) {
323 /* going from RTAS to normal kernel code */
324 kvmppc_mmu_pte_flush(vcpu, (uint32_t)vcpu->arch.magic_page_pa,
325 ~0xFFFUL);
326 }
327
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000328 /* Preload FPU if it's enabled */
Alexander Graf5deb8e72014-04-24 13:46:24 +0200329 if (kvmppc_get_msr(vcpu) & MSR_FP)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000330 kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
331}
332
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530333void kvmppc_set_pvr_pr(struct kvm_vcpu *vcpu, u32 pvr)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000334{
335 u32 host_pvr;
336
337 vcpu->arch.hflags &= ~BOOK3S_HFLAG_SLB;
338 vcpu->arch.pvr = pvr;
339#ifdef CONFIG_PPC_BOOK3S_64
340 if ((pvr >= 0x330000) && (pvr < 0x70330000)) {
341 kvmppc_mmu_book3s_64_init(vcpu);
Alexander Graf1022fc32011-09-14 21:45:23 +0200342 if (!to_book3s(vcpu)->hior_explicit)
343 to_book3s(vcpu)->hior = 0xfff00000;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000344 to_book3s(vcpu)->msr_mask = 0xffffffffffffffffULL;
Alexander Grafaf8f38b2011-08-10 13:57:08 +0200345 vcpu->arch.cpu_type = KVM_CPU_3S_64;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000346 } else
347#endif
348 {
349 kvmppc_mmu_book3s_32_init(vcpu);
Alexander Graf1022fc32011-09-14 21:45:23 +0200350 if (!to_book3s(vcpu)->hior_explicit)
351 to_book3s(vcpu)->hior = 0;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000352 to_book3s(vcpu)->msr_mask = 0xffffffffULL;
Alexander Grafaf8f38b2011-08-10 13:57:08 +0200353 vcpu->arch.cpu_type = KVM_CPU_3S_32;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000354 }
355
Alexander Grafaf8f38b2011-08-10 13:57:08 +0200356 kvmppc_sanity_check(vcpu);
357
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000358 /* If we are in hypervisor level on 970, we can tell the CPU to
359 * treat DCBZ as 32 bytes store */
360 vcpu->arch.hflags &= ~BOOK3S_HFLAG_DCBZ32;
361 if (vcpu->arch.mmu.is_dcbz32(vcpu) && (mfmsr() & MSR_HV) &&
362 !strcmp(cur_cpu_spec->platform, "ppc970"))
363 vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
364
365 /* Cell performs badly if MSR_FEx are set. So let's hope nobody
366 really needs them in a VM on Cell and force disable them. */
367 if (!strcmp(cur_cpu_spec->platform, "ppc-cell-be"))
368 to_book3s(vcpu)->msr_mask &= ~(MSR_FE0 | MSR_FE1);
369
Paul Mackerrasa4a0f252013-09-20 14:52:44 +1000370 /*
371 * If they're asking for POWER6 or later, set the flag
372 * indicating that we can do multiple large page sizes
373 * and 1TB segments.
374 * Also set the flag that indicates that tlbie has the large
375 * page bit in the RB operand instead of the instruction.
376 */
377 switch (PVR_VER(pvr)) {
378 case PVR_POWER6:
379 case PVR_POWER7:
380 case PVR_POWER7p:
381 case PVR_POWER8:
382 vcpu->arch.hflags |= BOOK3S_HFLAG_MULTI_PGSIZE |
383 BOOK3S_HFLAG_NEW_TLBIE;
384 break;
385 }
386
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000387#ifdef CONFIG_PPC_BOOK3S_32
388 /* 32 bit Book3S always has 32 byte dcbz */
389 vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
390#endif
391
392 /* On some CPUs we can execute paired single operations natively */
393 asm ( "mfpvr %0" : "=r"(host_pvr));
394 switch (host_pvr) {
395 case 0x00080200: /* lonestar 2.0 */
396 case 0x00088202: /* lonestar 2.2 */
397 case 0x70000100: /* gekko 1.0 */
398 case 0x00080100: /* gekko 2.0 */
399 case 0x00083203: /* gekko 2.3a */
400 case 0x00083213: /* gekko 2.3b */
401 case 0x00083204: /* gekko 2.4 */
402 case 0x00083214: /* gekko 2.4e (8SE) - retail HW2 */
403 case 0x00087200: /* broadway */
404 vcpu->arch.hflags |= BOOK3S_HFLAG_NATIVE_PS;
405 /* Enable HID2.PSE - in case we need it later */
406 mtspr(SPRN_HID2_GEKKO, mfspr(SPRN_HID2_GEKKO) | (1 << 29));
407 }
408}
409
410/* Book3s_32 CPUs always have 32 bytes cache line size, which Linux assumes. To
411 * make Book3s_32 Linux work on Book3s_64, we have to make sure we trap dcbz to
412 * emulate 32 bytes dcbz length.
413 *
414 * The Book3s_64 inventors also realized this case and implemented a special bit
415 * in the HID5 register, which is a hypervisor ressource. Thus we can't use it.
416 *
417 * My approach here is to patch the dcbz instruction on executing pages.
418 */
419static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)
420{
421 struct page *hpage;
422 u64 hpage_offset;
423 u32 *page;
424 int i;
425
426 hpage = gfn_to_page(vcpu->kvm, pte->raddr >> PAGE_SHIFT);
Xiao Guangrong32cad842012-08-03 15:42:52 +0800427 if (is_error_page(hpage))
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000428 return;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000429
430 hpage_offset = pte->raddr & ~PAGE_MASK;
431 hpage_offset &= ~0xFFFULL;
432 hpage_offset /= 4;
433
434 get_page(hpage);
Cong Wang2480b202011-11-25 23:14:16 +0800435 page = kmap_atomic(hpage);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000436
437 /* patch dcbz into reserved instruction, so we trap */
438 for (i=hpage_offset; i < hpage_offset + (HW_PAGE_SIZE / 4); i++)
Alexander Grafcd087ee2014-04-24 13:52:01 +0200439 if ((be32_to_cpu(page[i]) & 0xff0007ff) == INS_DCBZ)
440 page[i] &= cpu_to_be32(0xfffffff7);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000441
Cong Wang2480b202011-11-25 23:14:16 +0800442 kunmap_atomic(page);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000443 put_page(hpage);
444}
445
446static int kvmppc_visible_gfn(struct kvm_vcpu *vcpu, gfn_t gfn)
447{
448 ulong mp_pa = vcpu->arch.magic_page_pa;
449
Alexander Graf5deb8e72014-04-24 13:46:24 +0200450 if (!(kvmppc_get_msr(vcpu) & MSR_SF))
Benjamin Herrenschmidtbbcc9c02012-03-13 21:52:44 +0000451 mp_pa = (uint32_t)mp_pa;
452
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000453 if (unlikely(mp_pa) &&
454 unlikely((mp_pa & KVM_PAM) >> PAGE_SHIFT == gfn)) {
455 return 1;
456 }
457
458 return kvm_is_visible_gfn(vcpu->kvm, gfn);
459}
460
461int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
462 ulong eaddr, int vec)
463{
464 bool data = (vec == BOOK3S_INTERRUPT_DATA_STORAGE);
Paul Mackerras93b159b2013-09-20 14:52:51 +1000465 bool iswrite = false;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000466 int r = RESUME_GUEST;
467 int relocated;
468 int page_found = 0;
469 struct kvmppc_pte pte;
470 bool is_mmio = false;
Alexander Graf5deb8e72014-04-24 13:46:24 +0200471 bool dr = (kvmppc_get_msr(vcpu) & MSR_DR) ? true : false;
472 bool ir = (kvmppc_get_msr(vcpu) & MSR_IR) ? true : false;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000473 u64 vsid;
474
475 relocated = data ? dr : ir;
Paul Mackerras93b159b2013-09-20 14:52:51 +1000476 if (data && (vcpu->arch.fault_dsisr & DSISR_ISSTORE))
477 iswrite = true;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000478
479 /* Resolve real address if translation turned on */
480 if (relocated) {
Paul Mackerras93b159b2013-09-20 14:52:51 +1000481 page_found = vcpu->arch.mmu.xlate(vcpu, eaddr, &pte, data, iswrite);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000482 } else {
483 pte.may_execute = true;
484 pte.may_read = true;
485 pte.may_write = true;
486 pte.raddr = eaddr & KVM_PAM;
487 pte.eaddr = eaddr;
488 pte.vpage = eaddr >> 12;
Paul Mackerrasc9029c32013-09-20 14:52:45 +1000489 pte.page_size = MMU_PAGE_64K;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000490 }
491
Alexander Graf5deb8e72014-04-24 13:46:24 +0200492 switch (kvmppc_get_msr(vcpu) & (MSR_DR|MSR_IR)) {
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000493 case 0:
494 pte.vpage |= ((u64)VSID_REAL << (SID_SHIFT - 12));
495 break;
496 case MSR_DR:
497 case MSR_IR:
498 vcpu->arch.mmu.esid_to_vsid(vcpu, eaddr >> SID_SHIFT, &vsid);
499
Alexander Graf5deb8e72014-04-24 13:46:24 +0200500 if ((kvmppc_get_msr(vcpu) & (MSR_DR|MSR_IR)) == MSR_DR)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000501 pte.vpage |= ((u64)VSID_REAL_DR << (SID_SHIFT - 12));
502 else
503 pte.vpage |= ((u64)VSID_REAL_IR << (SID_SHIFT - 12));
504 pte.vpage |= vsid;
505
506 if (vsid == -1)
507 page_found = -EINVAL;
508 break;
509 }
510
511 if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
512 (!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32))) {
513 /*
514 * If we do the dcbz hack, we have to NX on every execution,
515 * so we can patch the executing code. This renders our guest
516 * NX-less.
517 */
518 pte.may_execute = !data;
519 }
520
521 if (page_found == -ENOENT) {
522 /* Page not found in guest PTE entries */
Alexander Graf5deb8e72014-04-24 13:46:24 +0200523 u64 ssrr1 = vcpu->arch.shadow_srr1;
524 u64 msr = kvmppc_get_msr(vcpu);
525 kvmppc_set_dar(vcpu, kvmppc_get_fault_dar(vcpu));
526 kvmppc_set_dsisr(vcpu, vcpu->arch.fault_dsisr);
527 kvmppc_set_msr_fast(vcpu, msr | (ssrr1 & 0xf8000000ULL));
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000528 kvmppc_book3s_queue_irqprio(vcpu, vec);
529 } else if (page_found == -EPERM) {
530 /* Storage protection */
Alexander Graf5deb8e72014-04-24 13:46:24 +0200531 u32 dsisr = vcpu->arch.fault_dsisr;
532 u64 ssrr1 = vcpu->arch.shadow_srr1;
533 u64 msr = kvmppc_get_msr(vcpu);
534 kvmppc_set_dar(vcpu, kvmppc_get_fault_dar(vcpu));
535 dsisr = (dsisr & ~DSISR_NOHPTE) | DSISR_PROTFAULT;
536 kvmppc_set_dsisr(vcpu, dsisr);
537 kvmppc_set_msr_fast(vcpu, msr | (ssrr1 & 0xf8000000ULL));
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000538 kvmppc_book3s_queue_irqprio(vcpu, vec);
539 } else if (page_found == -EINVAL) {
540 /* Page not found in guest SLB */
Alexander Graf5deb8e72014-04-24 13:46:24 +0200541 kvmppc_set_dar(vcpu, kvmppc_get_fault_dar(vcpu));
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000542 kvmppc_book3s_queue_irqprio(vcpu, vec + 0x80);
543 } else if (!is_mmio &&
544 kvmppc_visible_gfn(vcpu, pte.raddr >> PAGE_SHIFT)) {
Paul Mackerras93b159b2013-09-20 14:52:51 +1000545 if (data && !(vcpu->arch.fault_dsisr & DSISR_NOHPTE)) {
546 /*
547 * There is already a host HPTE there, presumably
548 * a read-only one for a page the guest thinks
549 * is writable, so get rid of it first.
550 */
551 kvmppc_mmu_unmap_page(vcpu, &pte);
552 }
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000553 /* The guest's PTE is not mapped yet. Map on the host */
Paul Mackerras93b159b2013-09-20 14:52:51 +1000554 kvmppc_mmu_map_page(vcpu, &pte, iswrite);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000555 if (data)
556 vcpu->stat.sp_storage++;
557 else if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
Paul Mackerras93b159b2013-09-20 14:52:51 +1000558 (!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32)))
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000559 kvmppc_patch_dcbz(vcpu, &pte);
560 } else {
561 /* MMIO */
562 vcpu->stat.mmio_exits++;
563 vcpu->arch.paddr_accessed = pte.raddr;
Alexander Graf6020c0f2012-03-12 02:26:30 +0100564 vcpu->arch.vaddr_accessed = pte.eaddr;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000565 r = kvmppc_emulate_mmio(run, vcpu);
566 if ( r == RESUME_HOST_NV )
567 r = RESUME_HOST;
568 }
569
570 return r;
571}
572
573static inline int get_fpr_index(int i)
574{
Paul Mackerras28c483b2012-11-04 18:16:46 +0000575 return i * TS_FPRWIDTH;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000576}
577
578/* Give up external provider (FPU, Altivec, VSX) */
579void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
580{
581 struct thread_struct *t = &current->thread;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000582
Paul Mackerras28c483b2012-11-04 18:16:46 +0000583 /*
584 * VSX instructions can access FP and vector registers, so if
585 * we are giving up VSX, make sure we give up FP and VMX as well.
586 */
587 if (msr & MSR_VSX)
588 msr |= MSR_FP | MSR_VEC;
589
590 msr &= vcpu->arch.guest_owned_ext;
591 if (!msr)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000592 return;
593
594#ifdef DEBUG_EXT
595 printk(KERN_INFO "Giving up ext 0x%lx\n", msr);
596#endif
597
Paul Mackerras28c483b2012-11-04 18:16:46 +0000598 if (msr & MSR_FP) {
599 /*
600 * Note that on CPUs with VSX, giveup_fpu stores
601 * both the traditional FP registers and the added VSX
Paul Mackerrasde79f7b2013-09-10 20:20:42 +1000602 * registers into thread.fp_state.fpr[].
Paul Mackerras28c483b2012-11-04 18:16:46 +0000603 */
Paul Mackerras99dae3b2013-10-15 20:43:03 +1100604 if (t->regs->msr & MSR_FP)
Paul Mackerras9d1ffdd2013-08-06 14:14:33 +1000605 giveup_fpu(current);
Paul Mackerras99dae3b2013-10-15 20:43:03 +1100606 t->fp_save_area = NULL;
Paul Mackerras28c483b2012-11-04 18:16:46 +0000607 }
608
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000609#ifdef CONFIG_ALTIVEC
Paul Mackerras28c483b2012-11-04 18:16:46 +0000610 if (msr & MSR_VEC) {
Paul Mackerras9d1ffdd2013-08-06 14:14:33 +1000611 if (current->thread.regs->msr & MSR_VEC)
612 giveup_altivec(current);
Paul Mackerras99dae3b2013-10-15 20:43:03 +1100613 t->vr_save_area = NULL;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000614 }
Paul Mackerras28c483b2012-11-04 18:16:46 +0000615#endif
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000616
Paul Mackerras28c483b2012-11-04 18:16:46 +0000617 vcpu->arch.guest_owned_ext &= ~(msr | MSR_VSX);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000618 kvmppc_recalc_shadow_msr(vcpu);
619}
620
Alexander Graf616dff82014-04-29 16:48:44 +0200621/* Give up facility (TAR / EBB / DSCR) */
622static void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac)
623{
624#ifdef CONFIG_PPC_BOOK3S_64
625 if (!(vcpu->arch.shadow_fscr & (1ULL << fac))) {
626 /* Facility not available to the guest, ignore giveup request*/
627 return;
628 }
Alexander Grafe14e7a12014-04-22 12:26:58 +0200629
630 switch (fac) {
631 case FSCR_TAR_LG:
632 vcpu->arch.tar = mfspr(SPRN_TAR);
633 mtspr(SPRN_TAR, current->thread.tar);
634 vcpu->arch.shadow_fscr &= ~FSCR_TAR;
635 break;
636 }
Alexander Graf616dff82014-04-29 16:48:44 +0200637#endif
638}
639
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000640static int kvmppc_read_inst(struct kvm_vcpu *vcpu)
641{
642 ulong srr0 = kvmppc_get_pc(vcpu);
643 u32 last_inst = kvmppc_get_last_inst(vcpu);
644 int ret;
645
646 ret = kvmppc_ld(vcpu, &srr0, sizeof(u32), &last_inst, false);
647 if (ret == -ENOENT) {
Alexander Graf5deb8e72014-04-24 13:46:24 +0200648 ulong msr = kvmppc_get_msr(vcpu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000649
650 msr = kvmppc_set_field(msr, 33, 33, 1);
651 msr = kvmppc_set_field(msr, 34, 36, 0);
Alexander Graf5deb8e72014-04-24 13:46:24 +0200652 msr = kvmppc_set_field(msr, 42, 47, 0);
653 kvmppc_set_msr_fast(vcpu, msr);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000654 kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_INST_STORAGE);
655 return EMULATE_AGAIN;
656 }
657
658 return EMULATE_DONE;
659}
660
661static int kvmppc_check_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr)
662{
663
664 /* Need to do paired single emulation? */
665 if (!(vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE))
666 return EMULATE_DONE;
667
668 /* Read out the instruction */
669 if (kvmppc_read_inst(vcpu) == EMULATE_DONE)
670 /* Need to emulate */
671 return EMULATE_FAIL;
672
673 return EMULATE_AGAIN;
674}
675
676/* Handle external providers (FPU, Altivec, VSX) */
677static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
678 ulong msr)
679{
680 struct thread_struct *t = &current->thread;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000681
682 /* When we have paired singles, we emulate in software */
683 if (vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE)
684 return RESUME_GUEST;
685
Alexander Graf5deb8e72014-04-24 13:46:24 +0200686 if (!(kvmppc_get_msr(vcpu) & msr)) {
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000687 kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
688 return RESUME_GUEST;
689 }
690
Paul Mackerras28c483b2012-11-04 18:16:46 +0000691 if (msr == MSR_VSX) {
692 /* No VSX? Give an illegal instruction interrupt */
693#ifdef CONFIG_VSX
694 if (!cpu_has_feature(CPU_FTR_VSX))
695#endif
696 {
697 kvmppc_core_queue_program(vcpu, SRR1_PROGILL);
698 return RESUME_GUEST;
699 }
700
701 /*
702 * We have to load up all the FP and VMX registers before
703 * we can let the guest use VSX instructions.
704 */
705 msr = MSR_FP | MSR_VEC | MSR_VSX;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000706 }
707
Paul Mackerras28c483b2012-11-04 18:16:46 +0000708 /* See if we already own all the ext(s) needed */
709 msr &= ~vcpu->arch.guest_owned_ext;
710 if (!msr)
711 return RESUME_GUEST;
712
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000713#ifdef DEBUG_EXT
714 printk(KERN_INFO "Loading up ext 0x%lx\n", msr);
715#endif
716
Paul Mackerras28c483b2012-11-04 18:16:46 +0000717 if (msr & MSR_FP) {
Aneesh Kumar K.V7562c4f2014-05-04 22:56:08 +0530718 preempt_disable();
Paul Mackerras09548fd2013-10-15 20:43:01 +1100719 enable_kernel_fp();
Paul Mackerras99dae3b2013-10-15 20:43:03 +1100720 load_fp_state(&vcpu->arch.fp);
721 t->fp_save_area = &vcpu->arch.fp;
Aneesh Kumar K.V7562c4f2014-05-04 22:56:08 +0530722 preempt_enable();
Paul Mackerras28c483b2012-11-04 18:16:46 +0000723 }
724
725 if (msr & MSR_VEC) {
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000726#ifdef CONFIG_ALTIVEC
Aneesh Kumar K.V7562c4f2014-05-04 22:56:08 +0530727 preempt_disable();
Paul Mackerras09548fd2013-10-15 20:43:01 +1100728 enable_kernel_altivec();
Paul Mackerras99dae3b2013-10-15 20:43:03 +1100729 load_vr_state(&vcpu->arch.vr);
730 t->vr_save_area = &vcpu->arch.vr;
Aneesh Kumar K.V7562c4f2014-05-04 22:56:08 +0530731 preempt_enable();
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000732#endif
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000733 }
734
Paul Mackerras99dae3b2013-10-15 20:43:03 +1100735 t->regs->msr |= msr;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000736 vcpu->arch.guest_owned_ext |= msr;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000737 kvmppc_recalc_shadow_msr(vcpu);
738
739 return RESUME_GUEST;
740}
741
Paul Mackerras9d1ffdd2013-08-06 14:14:33 +1000742/*
743 * Kernel code using FP or VMX could have flushed guest state to
744 * the thread_struct; if so, get it back now.
745 */
746static void kvmppc_handle_lost_ext(struct kvm_vcpu *vcpu)
747{
748 unsigned long lost_ext;
749
750 lost_ext = vcpu->arch.guest_owned_ext & ~current->thread.regs->msr;
751 if (!lost_ext)
752 return;
753
Paul Mackerras09548fd2013-10-15 20:43:01 +1100754 if (lost_ext & MSR_FP) {
Aneesh Kumar K.V7562c4f2014-05-04 22:56:08 +0530755 preempt_disable();
Paul Mackerras09548fd2013-10-15 20:43:01 +1100756 enable_kernel_fp();
Paul Mackerras99dae3b2013-10-15 20:43:03 +1100757 load_fp_state(&vcpu->arch.fp);
Aneesh Kumar K.V7562c4f2014-05-04 22:56:08 +0530758 preempt_enable();
Paul Mackerras09548fd2013-10-15 20:43:01 +1100759 }
Paul Mackerrasf2481772013-09-20 14:52:42 +1000760#ifdef CONFIG_ALTIVEC
Paul Mackerras09548fd2013-10-15 20:43:01 +1100761 if (lost_ext & MSR_VEC) {
Aneesh Kumar K.V7562c4f2014-05-04 22:56:08 +0530762 preempt_disable();
Paul Mackerras09548fd2013-10-15 20:43:01 +1100763 enable_kernel_altivec();
Paul Mackerras99dae3b2013-10-15 20:43:03 +1100764 load_vr_state(&vcpu->arch.vr);
Aneesh Kumar K.V7562c4f2014-05-04 22:56:08 +0530765 preempt_enable();
Paul Mackerras09548fd2013-10-15 20:43:01 +1100766 }
Paul Mackerrasf2481772013-09-20 14:52:42 +1000767#endif
Paul Mackerras9d1ffdd2013-08-06 14:14:33 +1000768 current->thread.regs->msr |= lost_ext;
769}
770
Alexander Graf616dff82014-04-29 16:48:44 +0200771#ifdef CONFIG_PPC_BOOK3S_64
772
773static void kvmppc_trigger_fac_interrupt(struct kvm_vcpu *vcpu, ulong fac)
774{
775 /* Inject the Interrupt Cause field and trigger a guest interrupt */
776 vcpu->arch.fscr &= ~(0xffULL << 56);
777 vcpu->arch.fscr |= (fac << 56);
778 kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_FAC_UNAVAIL);
779}
780
781static void kvmppc_emulate_fac(struct kvm_vcpu *vcpu, ulong fac)
782{
783 enum emulation_result er = EMULATE_FAIL;
784
785 if (!(kvmppc_get_msr(vcpu) & MSR_PR))
786 er = kvmppc_emulate_instruction(vcpu->run, vcpu);
787
788 if ((er != EMULATE_DONE) && (er != EMULATE_AGAIN)) {
789 /* Couldn't emulate, trigger interrupt in guest */
790 kvmppc_trigger_fac_interrupt(vcpu, fac);
791 }
792}
793
794/* Enable facilities (TAR, EBB, DSCR) for the guest */
795static int kvmppc_handle_fac(struct kvm_vcpu *vcpu, ulong fac)
796{
Alexander Graf9916d572014-04-29 17:54:40 +0200797 bool guest_fac_enabled;
Alexander Graf616dff82014-04-29 16:48:44 +0200798 BUG_ON(!cpu_has_feature(CPU_FTR_ARCH_207S));
799
Alexander Graf9916d572014-04-29 17:54:40 +0200800 /*
801 * Not every facility is enabled by FSCR bits, check whether the
802 * guest has this facility enabled at all.
803 */
804 switch (fac) {
805 case FSCR_TAR_LG:
806 case FSCR_EBB_LG:
807 guest_fac_enabled = (vcpu->arch.fscr & (1ULL << fac));
808 break;
809 case FSCR_TM_LG:
810 guest_fac_enabled = kvmppc_get_msr(vcpu) & MSR_TM;
811 break;
812 default:
813 guest_fac_enabled = false;
814 break;
815 }
816
817 if (!guest_fac_enabled) {
Alexander Graf616dff82014-04-29 16:48:44 +0200818 /* Facility not enabled by the guest */
819 kvmppc_trigger_fac_interrupt(vcpu, fac);
820 return RESUME_GUEST;
821 }
822
823 switch (fac) {
Alexander Grafe14e7a12014-04-22 12:26:58 +0200824 case FSCR_TAR_LG:
825 /* TAR switching isn't lazy in Linux yet */
826 current->thread.tar = mfspr(SPRN_TAR);
827 mtspr(SPRN_TAR, vcpu->arch.tar);
828 vcpu->arch.shadow_fscr |= FSCR_TAR;
829 break;
Alexander Graf616dff82014-04-29 16:48:44 +0200830 default:
831 kvmppc_emulate_fac(vcpu, fac);
832 break;
833 }
834
835 return RESUME_GUEST;
836}
837#endif
838
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +0530839int kvmppc_handle_exit_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
840 unsigned int exit_nr)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000841{
842 int r = RESUME_HOST;
Alexander Graf7ee78852012-08-13 12:44:41 +0200843 int s;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000844
845 vcpu->stat.sum_exits++;
846
847 run->exit_reason = KVM_EXIT_UNKNOWN;
848 run->ready_for_interrupt_injection = 1;
849
Alexander Grafbd2be682012-08-13 01:04:19 +0200850 /* We get here with MSR.EE=1 */
Alexander Graf3b1d9d72012-04-30 10:56:12 +0200851
Alexander Graf97c95052012-08-02 15:10:00 +0200852 trace_kvm_exit(exit_nr, vcpu);
Alexander Graf706fb732012-08-12 11:29:09 +0200853 kvm_guest_exit();
Alexander Grafc63ddcb2012-08-12 11:27:49 +0200854
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000855 switch (exit_nr) {
856 case BOOK3S_INTERRUPT_INST_STORAGE:
Alexander Graf468a12c2011-12-09 14:44:13 +0100857 {
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000858 ulong shadow_srr1 = vcpu->arch.shadow_srr1;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000859 vcpu->stat.pf_instruc++;
860
861#ifdef CONFIG_PPC_BOOK3S_32
862 /* We set segments as unused segments when invalidating them. So
863 * treat the respective fault as segment fault. */
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000864 {
865 struct kvmppc_book3s_shadow_vcpu *svcpu;
866 u32 sr;
867
868 svcpu = svcpu_get(vcpu);
869 sr = svcpu->sr[kvmppc_get_pc(vcpu) >> SID_SHIFT];
Alexander Graf468a12c2011-12-09 14:44:13 +0100870 svcpu_put(svcpu);
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000871 if (sr == SR_INVALID) {
872 kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu));
873 r = RESUME_GUEST;
874 break;
875 }
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000876 }
877#endif
878
879 /* only care about PTEG not found errors, but leave NX alone */
Alexander Graf468a12c2011-12-09 14:44:13 +0100880 if (shadow_srr1 & 0x40000000) {
Paul Mackerras93b159b2013-09-20 14:52:51 +1000881 int idx = srcu_read_lock(&vcpu->kvm->srcu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000882 r = kvmppc_handle_pagefault(run, vcpu, kvmppc_get_pc(vcpu), exit_nr);
Paul Mackerras93b159b2013-09-20 14:52:51 +1000883 srcu_read_unlock(&vcpu->kvm->srcu, idx);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000884 vcpu->stat.sp_instruc++;
885 } else if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
886 (!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32))) {
887 /*
888 * XXX If we do the dcbz hack we use the NX bit to flush&patch the page,
889 * so we can't use the NX bit inside the guest. Let's cross our fingers,
890 * that no guest that needs the dcbz hack does NX.
891 */
892 kvmppc_mmu_pte_flush(vcpu, kvmppc_get_pc(vcpu), ~0xFFFUL);
893 r = RESUME_GUEST;
894 } else {
Alexander Graf5deb8e72014-04-24 13:46:24 +0200895 u64 msr = kvmppc_get_msr(vcpu);
896 msr |= shadow_srr1 & 0x58000000;
897 kvmppc_set_msr_fast(vcpu, msr);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000898 kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
899 r = RESUME_GUEST;
900 }
901 break;
Alexander Graf468a12c2011-12-09 14:44:13 +0100902 }
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000903 case BOOK3S_INTERRUPT_DATA_STORAGE:
904 {
905 ulong dar = kvmppc_get_fault_dar(vcpu);
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000906 u32 fault_dsisr = vcpu->arch.fault_dsisr;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000907 vcpu->stat.pf_storage++;
908
909#ifdef CONFIG_PPC_BOOK3S_32
910 /* We set segments as unused segments when invalidating them. So
911 * treat the respective fault as segment fault. */
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000912 {
913 struct kvmppc_book3s_shadow_vcpu *svcpu;
914 u32 sr;
915
916 svcpu = svcpu_get(vcpu);
917 sr = svcpu->sr[dar >> SID_SHIFT];
Alexander Graf468a12c2011-12-09 14:44:13 +0100918 svcpu_put(svcpu);
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000919 if (sr == SR_INVALID) {
920 kvmppc_mmu_map_segment(vcpu, dar);
921 r = RESUME_GUEST;
922 break;
923 }
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000924 }
925#endif
926
Paul Mackerras93b159b2013-09-20 14:52:51 +1000927 /*
928 * We need to handle missing shadow PTEs, and
929 * protection faults due to us mapping a page read-only
930 * when the guest thinks it is writable.
931 */
932 if (fault_dsisr & (DSISR_NOHPTE | DSISR_PROTFAULT)) {
933 int idx = srcu_read_lock(&vcpu->kvm->srcu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000934 r = kvmppc_handle_pagefault(run, vcpu, dar, exit_nr);
Paul Mackerras93b159b2013-09-20 14:52:51 +1000935 srcu_read_unlock(&vcpu->kvm->srcu, idx);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000936 } else {
Alexander Graf5deb8e72014-04-24 13:46:24 +0200937 kvmppc_set_dar(vcpu, dar);
938 kvmppc_set_dsisr(vcpu, fault_dsisr);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000939 kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
940 r = RESUME_GUEST;
941 }
942 break;
943 }
944 case BOOK3S_INTERRUPT_DATA_SEGMENT:
945 if (kvmppc_mmu_map_segment(vcpu, kvmppc_get_fault_dar(vcpu)) < 0) {
Alexander Graf5deb8e72014-04-24 13:46:24 +0200946 kvmppc_set_dar(vcpu, kvmppc_get_fault_dar(vcpu));
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000947 kvmppc_book3s_queue_irqprio(vcpu,
948 BOOK3S_INTERRUPT_DATA_SEGMENT);
949 }
950 r = RESUME_GUEST;
951 break;
952 case BOOK3S_INTERRUPT_INST_SEGMENT:
953 if (kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu)) < 0) {
954 kvmppc_book3s_queue_irqprio(vcpu,
955 BOOK3S_INTERRUPT_INST_SEGMENT);
956 }
957 r = RESUME_GUEST;
958 break;
959 /* We're good on these - the host merely wanted to get our attention */
960 case BOOK3S_INTERRUPT_DECREMENTER:
Alexander Graf4f225ae2012-03-13 23:05:16 +0100961 case BOOK3S_INTERRUPT_HV_DECREMENTER:
Paul Mackerras40688902014-01-08 21:25:36 +1100962 case BOOK3S_INTERRUPT_DOORBELL:
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000963 vcpu->stat.dec_exits++;
964 r = RESUME_GUEST;
965 break;
966 case BOOK3S_INTERRUPT_EXTERNAL:
Alexander Graf4f225ae2012-03-13 23:05:16 +0100967 case BOOK3S_INTERRUPT_EXTERNAL_LEVEL:
968 case BOOK3S_INTERRUPT_EXTERNAL_HV:
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000969 vcpu->stat.ext_intr_exits++;
970 r = RESUME_GUEST;
971 break;
972 case BOOK3S_INTERRUPT_PERFMON:
973 r = RESUME_GUEST;
974 break;
975 case BOOK3S_INTERRUPT_PROGRAM:
Alexander Graf4f225ae2012-03-13 23:05:16 +0100976 case BOOK3S_INTERRUPT_H_EMUL_ASSIST:
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000977 {
978 enum emulation_result er;
979 ulong flags;
980
981program_interrupt:
Paul Mackerrasa2d56022013-09-20 14:52:43 +1000982 flags = vcpu->arch.shadow_srr1 & 0x1f0000ull;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000983
Alexander Graf5deb8e72014-04-24 13:46:24 +0200984 if (kvmppc_get_msr(vcpu) & MSR_PR) {
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +0000985#ifdef EXIT_DEBUG
986 printk(KERN_INFO "Userspace triggered 0x700 exception at 0x%lx (0x%x)\n", kvmppc_get_pc(vcpu), kvmppc_get_last_inst(vcpu));
987#endif
988 if ((kvmppc_get_last_inst(vcpu) & 0xff0007ff) !=
989 (INS_DCBZ & 0xfffffff7)) {
990 kvmppc_core_queue_program(vcpu, flags);
991 r = RESUME_GUEST;
992 break;
993 }
994 }
995
996 vcpu->stat.emulated_inst_exits++;
997 er = kvmppc_emulate_instruction(run, vcpu);
998 switch (er) {
999 case EMULATE_DONE:
1000 r = RESUME_GUEST_NV;
1001 break;
1002 case EMULATE_AGAIN:
1003 r = RESUME_GUEST;
1004 break;
1005 case EMULATE_FAIL:
1006 printk(KERN_CRIT "%s: emulation at %lx failed (%08x)\n",
1007 __func__, kvmppc_get_pc(vcpu), kvmppc_get_last_inst(vcpu));
1008 kvmppc_core_queue_program(vcpu, flags);
1009 r = RESUME_GUEST;
1010 break;
1011 case EMULATE_DO_MMIO:
1012 run->exit_reason = KVM_EXIT_MMIO;
1013 r = RESUME_HOST_NV;
1014 break;
Bharat Bhushanc402a3f2013-04-08 00:32:13 +00001015 case EMULATE_EXIT_USER:
Alexander Graf50c7bb82012-12-14 23:42:05 +01001016 r = RESUME_HOST_NV;
1017 break;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001018 default:
1019 BUG();
1020 }
1021 break;
1022 }
1023 case BOOK3S_INTERRUPT_SYSCALL:
Alexander Grafa668f2b2011-08-08 17:26:24 +02001024 if (vcpu->arch.papr_enabled &&
Paul Mackerras8b23de22013-08-06 14:15:19 +10001025 (kvmppc_get_last_sc(vcpu) == 0x44000022) &&
Alexander Graf5deb8e72014-04-24 13:46:24 +02001026 !(kvmppc_get_msr(vcpu) & MSR_PR)) {
Alexander Grafa668f2b2011-08-08 17:26:24 +02001027 /* SC 1 papr hypercalls */
1028 ulong cmd = kvmppc_get_gpr(vcpu, 3);
1029 int i;
1030
Aneesh Kumar K.V2ba9f0d2013-10-07 22:17:59 +05301031#ifdef CONFIG_PPC_BOOK3S_64
Alexander Grafa668f2b2011-08-08 17:26:24 +02001032 if (kvmppc_h_pr(vcpu, cmd) == EMULATE_DONE) {
1033 r = RESUME_GUEST;
1034 break;
1035 }
Andreas Schwab96f38d72011-11-08 07:17:39 +00001036#endif
Alexander Grafa668f2b2011-08-08 17:26:24 +02001037
1038 run->papr_hcall.nr = cmd;
1039 for (i = 0; i < 9; ++i) {
1040 ulong gpr = kvmppc_get_gpr(vcpu, 4 + i);
1041 run->papr_hcall.args[i] = gpr;
1042 }
1043 run->exit_reason = KVM_EXIT_PAPR_HCALL;
1044 vcpu->arch.hcall_needed = 1;
1045 r = RESUME_HOST;
1046 } else if (vcpu->arch.osi_enabled &&
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001047 (((u32)kvmppc_get_gpr(vcpu, 3)) == OSI_SC_MAGIC_R3) &&
1048 (((u32)kvmppc_get_gpr(vcpu, 4)) == OSI_SC_MAGIC_R4)) {
1049 /* MOL hypercalls */
1050 u64 *gprs = run->osi.gprs;
1051 int i;
1052
1053 run->exit_reason = KVM_EXIT_OSI;
1054 for (i = 0; i < 32; i++)
1055 gprs[i] = kvmppc_get_gpr(vcpu, i);
1056 vcpu->arch.osi_needed = 1;
1057 r = RESUME_HOST_NV;
Alexander Graf5deb8e72014-04-24 13:46:24 +02001058 } else if (!(kvmppc_get_msr(vcpu) & MSR_PR) &&
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001059 (((u32)kvmppc_get_gpr(vcpu, 0)) == KVM_SC_MAGIC_R0)) {
1060 /* KVM PV hypercalls */
1061 kvmppc_set_gpr(vcpu, 3, kvmppc_kvm_pv(vcpu));
1062 r = RESUME_GUEST;
1063 } else {
1064 /* Guest syscalls */
1065 vcpu->stat.syscall_exits++;
1066 kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
1067 r = RESUME_GUEST;
1068 }
1069 break;
1070 case BOOK3S_INTERRUPT_FP_UNAVAIL:
1071 case BOOK3S_INTERRUPT_ALTIVEC:
1072 case BOOK3S_INTERRUPT_VSX:
1073 {
1074 int ext_msr = 0;
1075
1076 switch (exit_nr) {
1077 case BOOK3S_INTERRUPT_FP_UNAVAIL: ext_msr = MSR_FP; break;
1078 case BOOK3S_INTERRUPT_ALTIVEC: ext_msr = MSR_VEC; break;
1079 case BOOK3S_INTERRUPT_VSX: ext_msr = MSR_VSX; break;
1080 }
1081
1082 switch (kvmppc_check_ext(vcpu, exit_nr)) {
1083 case EMULATE_DONE:
1084 /* everything ok - let's enable the ext */
1085 r = kvmppc_handle_ext(vcpu, exit_nr, ext_msr);
1086 break;
1087 case EMULATE_FAIL:
1088 /* we need to emulate this instruction */
1089 goto program_interrupt;
1090 break;
1091 default:
1092 /* nothing to worry about - go again */
1093 break;
1094 }
1095 break;
1096 }
1097 case BOOK3S_INTERRUPT_ALIGNMENT:
1098 if (kvmppc_read_inst(vcpu) == EMULATE_DONE) {
Alexander Graf5deb8e72014-04-24 13:46:24 +02001099 u32 last_inst = kvmppc_get_last_inst(vcpu);
1100 u32 dsisr;
1101 u64 dar;
1102
1103 dsisr = kvmppc_alignment_dsisr(vcpu, last_inst);
1104 dar = kvmppc_alignment_dar(vcpu, last_inst);
1105
1106 kvmppc_set_dsisr(vcpu, dsisr);
1107 kvmppc_set_dar(vcpu, dar);
1108
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001109 kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
1110 }
1111 r = RESUME_GUEST;
1112 break;
Alexander Graf616dff82014-04-29 16:48:44 +02001113#ifdef CONFIG_PPC_BOOK3S_64
1114 case BOOK3S_INTERRUPT_FAC_UNAVAIL:
1115 kvmppc_handle_fac(vcpu, vcpu->arch.shadow_fscr >> 56);
1116 r = RESUME_GUEST;
1117 break;
1118#endif
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001119 case BOOK3S_INTERRUPT_MACHINE_CHECK:
1120 case BOOK3S_INTERRUPT_TRACE:
1121 kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
1122 r = RESUME_GUEST;
1123 break;
1124 default:
Alexander Graf468a12c2011-12-09 14:44:13 +01001125 {
Paul Mackerrasa2d56022013-09-20 14:52:43 +10001126 ulong shadow_srr1 = vcpu->arch.shadow_srr1;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001127 /* Ugh - bork here! What did we get? */
1128 printk(KERN_EMERG "exit_nr=0x%x | pc=0x%lx | msr=0x%lx\n",
Alexander Graf468a12c2011-12-09 14:44:13 +01001129 exit_nr, kvmppc_get_pc(vcpu), shadow_srr1);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001130 r = RESUME_HOST;
1131 BUG();
1132 break;
1133 }
Alexander Graf468a12c2011-12-09 14:44:13 +01001134 }
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001135
1136 if (!(r & RESUME_HOST)) {
1137 /* To avoid clobbering exit_reason, only check for signals if
1138 * we aren't already exiting to userspace for some other
1139 * reason. */
Alexander Grafe371f712011-12-19 13:36:55 +01001140
1141 /*
1142 * Interrupts could be timers for the guest which we have to
1143 * inject again, so let's postpone them until we're in the guest
1144 * and if we really did time things so badly, then we just exit
1145 * again due to a host external interrupt.
1146 */
Alexander Graf7ee78852012-08-13 12:44:41 +02001147 s = kvmppc_prepare_to_enter(vcpu);
Scott Wood6c85f522014-01-09 19:18:40 -06001148 if (s <= 0)
Alexander Graf7ee78852012-08-13 12:44:41 +02001149 r = s;
Scott Wood6c85f522014-01-09 19:18:40 -06001150 else {
1151 /* interrupts now hard-disabled */
Scott Wood5f1c2482013-07-10 17:47:39 -05001152 kvmppc_fix_ee_before_entry();
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001153 }
Scott Wood6c85f522014-01-09 19:18:40 -06001154
Paul Mackerras9d1ffdd2013-08-06 14:14:33 +10001155 kvmppc_handle_lost_ext(vcpu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001156 }
1157
1158 trace_kvm_book3s_reenter(r, vcpu);
1159
1160 return r;
1161}
1162
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301163static int kvm_arch_vcpu_ioctl_get_sregs_pr(struct kvm_vcpu *vcpu,
1164 struct kvm_sregs *sregs)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001165{
1166 struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
1167 int i;
1168
1169 sregs->pvr = vcpu->arch.pvr;
1170
1171 sregs->u.s.sdr1 = to_book3s(vcpu)->sdr1;
1172 if (vcpu->arch.hflags & BOOK3S_HFLAG_SLB) {
1173 for (i = 0; i < 64; i++) {
1174 sregs->u.s.ppc64.slb[i].slbe = vcpu->arch.slb[i].orige | i;
1175 sregs->u.s.ppc64.slb[i].slbv = vcpu->arch.slb[i].origv;
1176 }
1177 } else {
1178 for (i = 0; i < 16; i++)
Alexander Graf5deb8e72014-04-24 13:46:24 +02001179 sregs->u.s.ppc32.sr[i] = kvmppc_get_sr(vcpu, i);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001180
1181 for (i = 0; i < 8; i++) {
1182 sregs->u.s.ppc32.ibat[i] = vcpu3s->ibat[i].raw;
1183 sregs->u.s.ppc32.dbat[i] = vcpu3s->dbat[i].raw;
1184 }
1185 }
1186
1187 return 0;
1188}
1189
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301190static int kvm_arch_vcpu_ioctl_set_sregs_pr(struct kvm_vcpu *vcpu,
1191 struct kvm_sregs *sregs)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001192{
1193 struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
1194 int i;
1195
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301196 kvmppc_set_pvr_pr(vcpu, sregs->pvr);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001197
1198 vcpu3s->sdr1 = sregs->u.s.sdr1;
1199 if (vcpu->arch.hflags & BOOK3S_HFLAG_SLB) {
1200 for (i = 0; i < 64; i++) {
1201 vcpu->arch.mmu.slbmte(vcpu, sregs->u.s.ppc64.slb[i].slbv,
1202 sregs->u.s.ppc64.slb[i].slbe);
1203 }
1204 } else {
1205 for (i = 0; i < 16; i++) {
1206 vcpu->arch.mmu.mtsrin(vcpu, i, sregs->u.s.ppc32.sr[i]);
1207 }
1208 for (i = 0; i < 8; i++) {
1209 kvmppc_set_bat(vcpu, &(vcpu3s->ibat[i]), false,
1210 (u32)sregs->u.s.ppc32.ibat[i]);
1211 kvmppc_set_bat(vcpu, &(vcpu3s->ibat[i]), true,
1212 (u32)(sregs->u.s.ppc32.ibat[i] >> 32));
1213 kvmppc_set_bat(vcpu, &(vcpu3s->dbat[i]), false,
1214 (u32)sregs->u.s.ppc32.dbat[i]);
1215 kvmppc_set_bat(vcpu, &(vcpu3s->dbat[i]), true,
1216 (u32)(sregs->u.s.ppc32.dbat[i] >> 32));
1217 }
1218 }
1219
1220 /* Flush the MMU after messing with the segments */
1221 kvmppc_mmu_pte_flush(vcpu, 0, 0);
1222
1223 return 0;
1224}
1225
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301226static int kvmppc_get_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
1227 union kvmppc_one_reg *val)
Paul Mackerras31f34382011-12-12 12:26:50 +00001228{
Paul Mackerrasa136a8b2012-09-25 20:31:56 +00001229 int r = 0;
Paul Mackerras31f34382011-12-12 12:26:50 +00001230
Paul Mackerrasa136a8b2012-09-25 20:31:56 +00001231 switch (id) {
Paul Mackerras31f34382011-12-12 12:26:50 +00001232 case KVM_REG_PPC_HIOR:
Paul Mackerrasa136a8b2012-09-25 20:31:56 +00001233 *val = get_reg_val(id, to_book3s(vcpu)->hior);
Paul Mackerras31f34382011-12-12 12:26:50 +00001234 break;
Aneesh Kumar K.Ve5ee5422014-05-05 08:39:44 +05301235 case KVM_REG_PPC_LPCR:
1236 /*
1237 * We are only interested in the LPCR_ILE bit
1238 */
1239 if (vcpu->arch.intr_msr & MSR_LE)
1240 *val = get_reg_val(id, LPCR_ILE);
1241 else
1242 *val = get_reg_val(id, 0);
1243 break;
Paul Mackerras31f34382011-12-12 12:26:50 +00001244 default:
Paul Mackerrasa136a8b2012-09-25 20:31:56 +00001245 r = -EINVAL;
Paul Mackerras31f34382011-12-12 12:26:50 +00001246 break;
1247 }
1248
1249 return r;
1250}
1251
Aneesh Kumar K.Ve5ee5422014-05-05 08:39:44 +05301252static void kvmppc_set_lpcr_pr(struct kvm_vcpu *vcpu, u64 new_lpcr)
1253{
1254 if (new_lpcr & LPCR_ILE)
1255 vcpu->arch.intr_msr |= MSR_LE;
1256 else
1257 vcpu->arch.intr_msr &= ~MSR_LE;
1258}
1259
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301260static int kvmppc_set_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
1261 union kvmppc_one_reg *val)
Paul Mackerras31f34382011-12-12 12:26:50 +00001262{
Paul Mackerrasa136a8b2012-09-25 20:31:56 +00001263 int r = 0;
Paul Mackerras31f34382011-12-12 12:26:50 +00001264
Paul Mackerrasa136a8b2012-09-25 20:31:56 +00001265 switch (id) {
Paul Mackerras31f34382011-12-12 12:26:50 +00001266 case KVM_REG_PPC_HIOR:
Paul Mackerrasa136a8b2012-09-25 20:31:56 +00001267 to_book3s(vcpu)->hior = set_reg_val(id, *val);
1268 to_book3s(vcpu)->hior_explicit = true;
Paul Mackerras31f34382011-12-12 12:26:50 +00001269 break;
Aneesh Kumar K.Ve5ee5422014-05-05 08:39:44 +05301270 case KVM_REG_PPC_LPCR:
1271 kvmppc_set_lpcr_pr(vcpu, set_reg_val(id, *val));
1272 break;
Paul Mackerras31f34382011-12-12 12:26:50 +00001273 default:
Paul Mackerrasa136a8b2012-09-25 20:31:56 +00001274 r = -EINVAL;
Paul Mackerras31f34382011-12-12 12:26:50 +00001275 break;
1276 }
1277
1278 return r;
1279}
1280
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301281static struct kvm_vcpu *kvmppc_core_vcpu_create_pr(struct kvm *kvm,
1282 unsigned int id)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001283{
1284 struct kvmppc_vcpu_book3s *vcpu_book3s;
1285 struct kvm_vcpu *vcpu;
1286 int err = -ENOMEM;
1287 unsigned long p;
1288
Paul Mackerras3ff95502013-09-20 14:52:49 +10001289 vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
1290 if (!vcpu)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001291 goto out;
1292
Paul Mackerras3ff95502013-09-20 14:52:49 +10001293 vcpu_book3s = vzalloc(sizeof(struct kvmppc_vcpu_book3s));
1294 if (!vcpu_book3s)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001295 goto free_vcpu;
Paul Mackerras3ff95502013-09-20 14:52:49 +10001296 vcpu->arch.book3s = vcpu_book3s;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001297
Paul Mackerras3ff95502013-09-20 14:52:49 +10001298#ifdef CONFIG_KVM_BOOK3S_32
1299 vcpu->arch.shadow_vcpu =
1300 kzalloc(sizeof(*vcpu->arch.shadow_vcpu), GFP_KERNEL);
1301 if (!vcpu->arch.shadow_vcpu)
1302 goto free_vcpu3s;
Paul Mackerrasa2d56022013-09-20 14:52:43 +10001303#endif
Paul Mackerras3ff95502013-09-20 14:52:49 +10001304
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001305 err = kvm_vcpu_init(vcpu, kvm, id);
1306 if (err)
1307 goto free_shadow_vcpu;
1308
Thadeu Lima de Souza Cascardo7c7b4062013-07-17 12:10:29 -03001309 err = -ENOMEM;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001310 p = __get_free_page(GFP_KERNEL|__GFP_ZERO);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001311 if (!p)
1312 goto uninit_vcpu;
Thadeu Lima de Souza Cascardo7c7b4062013-07-17 12:10:29 -03001313 /* the real shared page fills the last 4k of our page */
1314 vcpu->arch.shared = (void *)(p + PAGE_SIZE - 4096);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001315#ifdef CONFIG_PPC_BOOK3S_64
Alexander Graf5deb8e72014-04-24 13:46:24 +02001316 /* Always start the shared struct in native endian mode */
1317#ifdef __BIG_ENDIAN__
1318 vcpu->arch.shared_big_endian = true;
1319#else
1320 vcpu->arch.shared_big_endian = false;
1321#endif
1322
Paul Mackerrasa4a0f252013-09-20 14:52:44 +10001323 /*
1324 * Default to the same as the host if we're on sufficiently
1325 * recent machine that we have 1TB segments;
1326 * otherwise default to PPC970FX.
1327 */
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001328 vcpu->arch.pvr = 0x3C0301;
Paul Mackerrasa4a0f252013-09-20 14:52:44 +10001329 if (mmu_has_feature(MMU_FTR_1T_SEGMENT))
1330 vcpu->arch.pvr = mfspr(SPRN_PVR);
Aneesh Kumar K.Ve5ee5422014-05-05 08:39:44 +05301331 vcpu->arch.intr_msr = MSR_SF;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001332#else
1333 /* default to book3s_32 (750) */
1334 vcpu->arch.pvr = 0x84202;
1335#endif
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301336 kvmppc_set_pvr_pr(vcpu, vcpu->arch.pvr);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001337 vcpu->arch.slb_nr = 64;
1338
Alexander Graf94810ba2014-04-24 13:04:01 +02001339 vcpu->arch.shadow_msr = MSR_USER64 & ~MSR_LE;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001340
1341 err = kvmppc_mmu_init(vcpu);
1342 if (err < 0)
1343 goto uninit_vcpu;
1344
1345 return vcpu;
1346
1347uninit_vcpu:
1348 kvm_vcpu_uninit(vcpu);
1349free_shadow_vcpu:
Paul Mackerrasa2d56022013-09-20 14:52:43 +10001350#ifdef CONFIG_KVM_BOOK3S_32
Paul Mackerras3ff95502013-09-20 14:52:49 +10001351 kfree(vcpu->arch.shadow_vcpu);
1352free_vcpu3s:
Paul Mackerrasa2d56022013-09-20 14:52:43 +10001353#endif
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001354 vfree(vcpu_book3s);
Paul Mackerras3ff95502013-09-20 14:52:49 +10001355free_vcpu:
1356 kmem_cache_free(kvm_vcpu_cache, vcpu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001357out:
1358 return ERR_PTR(err);
1359}
1360
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301361static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001362{
1363 struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
1364
1365 free_page((unsigned long)vcpu->arch.shared & PAGE_MASK);
1366 kvm_vcpu_uninit(vcpu);
Paul Mackerras3ff95502013-09-20 14:52:49 +10001367#ifdef CONFIG_KVM_BOOK3S_32
1368 kfree(vcpu->arch.shadow_vcpu);
1369#endif
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001370 vfree(vcpu_book3s);
Paul Mackerras3ff95502013-09-20 14:52:49 +10001371 kmem_cache_free(kvm_vcpu_cache, vcpu);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001372}
1373
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301374static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001375{
1376 int ret;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001377#ifdef CONFIG_ALTIVEC
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001378 unsigned long uninitialized_var(vrsave);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001379#endif
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001380
Alexander Grafaf8f38b2011-08-10 13:57:08 +02001381 /* Check if we can run the vcpu at all */
1382 if (!vcpu->arch.sane) {
1383 kvm_run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
Alexander Graf7d827142011-12-09 15:46:21 +01001384 ret = -EINVAL;
1385 goto out;
Alexander Grafaf8f38b2011-08-10 13:57:08 +02001386 }
1387
Alexander Grafe371f712011-12-19 13:36:55 +01001388 /*
1389 * Interrupts could be timers for the guest which we have to inject
1390 * again, so let's postpone them until we're in the guest and if we
1391 * really did time things so badly, then we just exit again due to
1392 * a host external interrupt.
1393 */
Alexander Graf7ee78852012-08-13 12:44:41 +02001394 ret = kvmppc_prepare_to_enter(vcpu);
Scott Wood6c85f522014-01-09 19:18:40 -06001395 if (ret <= 0)
Alexander Graf7d827142011-12-09 15:46:21 +01001396 goto out;
Scott Wood6c85f522014-01-09 19:18:40 -06001397 /* interrupts now hard-disabled */
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001398
Paul Mackerras99dae3b2013-10-15 20:43:03 +11001399 /* Save FPU state in thread_struct */
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001400 if (current->thread.regs->msr & MSR_FP)
1401 giveup_fpu(current);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001402
1403#ifdef CONFIG_ALTIVEC
Paul Mackerras99dae3b2013-10-15 20:43:03 +11001404 /* Save Altivec state in thread_struct */
1405 if (current->thread.regs->msr & MSR_VEC)
1406 giveup_altivec(current);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001407#endif
1408
1409#ifdef CONFIG_VSX
Paul Mackerras99dae3b2013-10-15 20:43:03 +11001410 /* Save VSX state in thread_struct */
1411 if (current->thread.regs->msr & MSR_VSX)
Paul Mackerras28c483b2012-11-04 18:16:46 +00001412 __giveup_vsx(current);
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001413#endif
1414
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001415 /* Preload FPU if it's enabled */
Alexander Graf5deb8e72014-04-24 13:46:24 +02001416 if (kvmppc_get_msr(vcpu) & MSR_FP)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001417 kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
1418
Scott Wood5f1c2482013-07-10 17:47:39 -05001419 kvmppc_fix_ee_before_entry();
Paul Mackerrasdf6909e52011-06-29 00:19:50 +00001420
1421 ret = __kvmppc_vcpu_run(kvm_run, vcpu);
1422
Alexander Graf24afa372012-08-12 12:42:30 +02001423 /* No need for kvm_guest_exit. It's done in handle_exit.
1424 We also get here with interrupts enabled. */
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001425
Paul Mackerras28c483b2012-11-04 18:16:46 +00001426 /* Make sure we save the guest FPU/Altivec/VSX state */
1427 kvmppc_giveup_ext(vcpu, MSR_FP | MSR_VEC | MSR_VSX);
1428
Alexander Grafe14e7a12014-04-22 12:26:58 +02001429 /* Make sure we save the guest TAR/EBB/DSCR state */
1430 kvmppc_giveup_fac(vcpu, FSCR_TAR_LG);
1431
Alexander Graf7d827142011-12-09 15:46:21 +01001432out:
Alexander Graf0652eaa2012-08-12 11:34:21 +02001433 vcpu->mode = OUTSIDE_GUEST_MODE;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001434 return ret;
1435}
1436
Paul Mackerras82ed3612011-12-15 02:03:22 +00001437/*
1438 * Get (and clear) the dirty memory log for a memory slot.
1439 */
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301440static int kvm_vm_ioctl_get_dirty_log_pr(struct kvm *kvm,
1441 struct kvm_dirty_log *log)
Paul Mackerras82ed3612011-12-15 02:03:22 +00001442{
1443 struct kvm_memory_slot *memslot;
1444 struct kvm_vcpu *vcpu;
1445 ulong ga, ga_end;
1446 int is_dirty = 0;
1447 int r;
1448 unsigned long n;
1449
1450 mutex_lock(&kvm->slots_lock);
1451
1452 r = kvm_get_dirty_log(kvm, log, &is_dirty);
1453 if (r)
1454 goto out;
1455
1456 /* If nothing is dirty, don't bother messing with page tables. */
1457 if (is_dirty) {
1458 memslot = id_to_memslot(kvm->memslots, log->slot);
1459
1460 ga = memslot->base_gfn << PAGE_SHIFT;
1461 ga_end = ga + (memslot->npages << PAGE_SHIFT);
1462
1463 kvm_for_each_vcpu(n, vcpu, kvm)
1464 kvmppc_mmu_pte_pflush(vcpu, ga, ga_end);
1465
1466 n = kvm_dirty_bitmap_bytes(memslot);
1467 memset(memslot->dirty_bitmap, 0, n);
1468 }
1469
1470 r = 0;
1471out:
1472 mutex_unlock(&kvm->slots_lock);
1473 return r;
1474}
1475
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301476static void kvmppc_core_flush_memslot_pr(struct kvm *kvm,
1477 struct kvm_memory_slot *memslot)
Benjamin Herrenschmidt5b747162012-04-26 19:43:42 +00001478{
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301479 return;
1480}
1481
1482static int kvmppc_core_prepare_memory_region_pr(struct kvm *kvm,
1483 struct kvm_memory_slot *memslot,
1484 struct kvm_userspace_memory_region *mem)
1485{
1486 return 0;
1487}
1488
1489static void kvmppc_core_commit_memory_region_pr(struct kvm *kvm,
1490 struct kvm_userspace_memory_region *mem,
1491 const struct kvm_memory_slot *old)
1492{
1493 return;
1494}
1495
1496static void kvmppc_core_free_memslot_pr(struct kvm_memory_slot *free,
1497 struct kvm_memory_slot *dont)
1498{
1499 return;
1500}
1501
1502static int kvmppc_core_create_memslot_pr(struct kvm_memory_slot *slot,
1503 unsigned long npages)
1504{
1505 return 0;
1506}
1507
1508
Benjamin Herrenschmidt5b747162012-04-26 19:43:42 +00001509#ifdef CONFIG_PPC64
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301510static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm,
1511 struct kvm_ppc_smmu_info *info)
Benjamin Herrenschmidt5b747162012-04-26 19:43:42 +00001512{
Paul Mackerrasa4a0f252013-09-20 14:52:44 +10001513 long int i;
1514 struct kvm_vcpu *vcpu;
1515
1516 info->flags = 0;
Benjamin Herrenschmidt5b747162012-04-26 19:43:42 +00001517
1518 /* SLB is always 64 entries */
1519 info->slb_size = 64;
1520
1521 /* Standard 4k base page size segment */
1522 info->sps[0].page_shift = 12;
1523 info->sps[0].slb_enc = 0;
1524 info->sps[0].enc[0].page_shift = 12;
1525 info->sps[0].enc[0].pte_enc = 0;
1526
Paul Mackerrasa4a0f252013-09-20 14:52:44 +10001527 /*
1528 * 64k large page size.
1529 * We only want to put this in if the CPUs we're emulating
1530 * support it, but unfortunately we don't have a vcpu easily
1531 * to hand here to test. Just pick the first vcpu, and if
1532 * that doesn't exist yet, report the minimum capability,
1533 * i.e., no 64k pages.
1534 * 1T segment support goes along with 64k pages.
1535 */
1536 i = 1;
1537 vcpu = kvm_get_vcpu(kvm, 0);
1538 if (vcpu && (vcpu->arch.hflags & BOOK3S_HFLAG_MULTI_PGSIZE)) {
1539 info->flags = KVM_PPC_1T_SEGMENTS;
1540 info->sps[i].page_shift = 16;
1541 info->sps[i].slb_enc = SLB_VSID_L | SLB_VSID_LP_01;
1542 info->sps[i].enc[0].page_shift = 16;
1543 info->sps[i].enc[0].pte_enc = 1;
1544 ++i;
1545 }
1546
Benjamin Herrenschmidt5b747162012-04-26 19:43:42 +00001547 /* Standard 16M large page size segment */
Paul Mackerrasa4a0f252013-09-20 14:52:44 +10001548 info->sps[i].page_shift = 24;
1549 info->sps[i].slb_enc = SLB_VSID_L;
1550 info->sps[i].enc[0].page_shift = 24;
1551 info->sps[i].enc[0].pte_enc = 0;
Benjamin Herrenschmidt5b747162012-04-26 19:43:42 +00001552
1553 return 0;
1554}
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301555#else
1556static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm,
1557 struct kvm_ppc_smmu_info *info)
1558{
1559 /* We should not get called */
1560 BUG();
1561}
Benjamin Herrenschmidt5b747162012-04-26 19:43:42 +00001562#endif /* CONFIG_PPC64 */
1563
Ian Munsiea413f472012-12-03 18:36:13 +00001564static unsigned int kvm_global_user_count = 0;
1565static DEFINE_SPINLOCK(kvm_global_user_count_lock);
1566
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301567static int kvmppc_core_init_vm_pr(struct kvm *kvm)
Paul Mackerrasf9e05542011-06-29 00:19:22 +00001568{
Paul Mackerras9308ab82013-09-20 14:52:48 +10001569 mutex_init(&kvm->arch.hpt_mutex);
Benjamin Herrenschmidtf31e65e2012-03-15 21:58:34 +00001570
Ian Munsiea413f472012-12-03 18:36:13 +00001571 if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
1572 spin_lock(&kvm_global_user_count_lock);
1573 if (++kvm_global_user_count == 1)
1574 pSeries_disable_reloc_on_exc();
1575 spin_unlock(&kvm_global_user_count_lock);
1576 }
Paul Mackerrasf9e05542011-06-29 00:19:22 +00001577 return 0;
1578}
1579
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301580static void kvmppc_core_destroy_vm_pr(struct kvm *kvm)
Paul Mackerrasf9e05542011-06-29 00:19:22 +00001581{
Benjamin Herrenschmidtf31e65e2012-03-15 21:58:34 +00001582#ifdef CONFIG_PPC64
1583 WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
1584#endif
Ian Munsiea413f472012-12-03 18:36:13 +00001585
1586 if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
1587 spin_lock(&kvm_global_user_count_lock);
1588 BUG_ON(kvm_global_user_count == 0);
1589 if (--kvm_global_user_count == 0)
1590 pSeries_enable_reloc_on_exc();
1591 spin_unlock(&kvm_global_user_count_lock);
1592 }
Paul Mackerrasf9e05542011-06-29 00:19:22 +00001593}
1594
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301595static int kvmppc_core_check_processor_compat_pr(void)
1596{
1597 /* we are always compatible */
1598 return 0;
1599}
1600
1601static long kvm_arch_vm_ioctl_pr(struct file *filp,
1602 unsigned int ioctl, unsigned long arg)
1603{
1604 return -ENOTTY;
1605}
1606
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301607static struct kvmppc_ops kvm_ops_pr = {
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301608 .get_sregs = kvm_arch_vcpu_ioctl_get_sregs_pr,
1609 .set_sregs = kvm_arch_vcpu_ioctl_set_sregs_pr,
1610 .get_one_reg = kvmppc_get_one_reg_pr,
1611 .set_one_reg = kvmppc_set_one_reg_pr,
1612 .vcpu_load = kvmppc_core_vcpu_load_pr,
1613 .vcpu_put = kvmppc_core_vcpu_put_pr,
1614 .set_msr = kvmppc_set_msr_pr,
1615 .vcpu_run = kvmppc_vcpu_run_pr,
1616 .vcpu_create = kvmppc_core_vcpu_create_pr,
1617 .vcpu_free = kvmppc_core_vcpu_free_pr,
1618 .check_requests = kvmppc_core_check_requests_pr,
1619 .get_dirty_log = kvm_vm_ioctl_get_dirty_log_pr,
1620 .flush_memslot = kvmppc_core_flush_memslot_pr,
1621 .prepare_memory_region = kvmppc_core_prepare_memory_region_pr,
1622 .commit_memory_region = kvmppc_core_commit_memory_region_pr,
1623 .unmap_hva = kvm_unmap_hva_pr,
1624 .unmap_hva_range = kvm_unmap_hva_range_pr,
1625 .age_hva = kvm_age_hva_pr,
1626 .test_age_hva = kvm_test_age_hva_pr,
1627 .set_spte_hva = kvm_set_spte_hva_pr,
1628 .mmu_destroy = kvmppc_mmu_destroy_pr,
1629 .free_memslot = kvmppc_core_free_memslot_pr,
1630 .create_memslot = kvmppc_core_create_memslot_pr,
1631 .init_vm = kvmppc_core_init_vm_pr,
1632 .destroy_vm = kvmppc_core_destroy_vm_pr,
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301633 .get_smmu_info = kvm_vm_ioctl_get_smmu_info_pr,
1634 .emulate_op = kvmppc_core_emulate_op_pr,
1635 .emulate_mtspr = kvmppc_core_emulate_mtspr_pr,
1636 .emulate_mfspr = kvmppc_core_emulate_mfspr_pr,
1637 .fast_vcpu_kick = kvm_vcpu_kick,
1638 .arch_vm_ioctl = kvm_arch_vm_ioctl_pr,
1639};
1640
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301641
1642int kvmppc_book3s_init_pr(void)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001643{
1644 int r;
1645
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301646 r = kvmppc_core_check_processor_compat_pr();
1647 if (r < 0)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001648 return r;
1649
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301650 kvm_ops_pr.owner = THIS_MODULE;
1651 kvmppc_pr_ops = &kvm_ops_pr;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001652
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301653 r = kvmppc_mmu_hpte_sysinit();
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001654 return r;
1655}
1656
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301657void kvmppc_book3s_exit_pr(void)
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001658{
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301659 kvmppc_pr_ops = NULL;
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001660 kvmppc_mmu_hpte_sysexit();
Paul Mackerrasf05ed4d2011-06-29 00:17:58 +00001661}
1662
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301663/*
1664 * We only support separate modules for book3s 64
1665 */
1666#ifdef CONFIG_PPC_BOOK3S_64
1667
Aneesh Kumar K.V3a167bea2013-10-07 22:17:53 +05301668module_init(kvmppc_book3s_init_pr);
1669module_exit(kvmppc_book3s_exit_pr);
Aneesh Kumar K.V2ba9f0d2013-10-07 22:17:59 +05301670
1671MODULE_LICENSE("GPL");
Alexander Graf398a76c2013-12-09 13:53:42 +01001672MODULE_ALIAS_MISCDEV(KVM_MINOR);
1673MODULE_ALIAS("devname:kvm");
Aneesh Kumar K.Vcbbc58d2013-10-07 22:18:01 +05301674#endif