blob: 8f39796c9da8dffaede2751f607375b1d5a4f24b [file] [log] [blame]
Alexander Graf4e3420252009-10-30 05:47:05 +00001/*
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 SUSE Linux Products GmbH 2009
16 *
17 * Authors: Alexander Graf <agraf@suse.de>
18 */
19
20#ifndef __ASM_KVM_BOOK3S_H__
21#define __ASM_KVM_BOOK3S_H__
22
23#include <linux/types.h>
24#include <linux/kvm_host.h>
Alexander Graf2191d652010-04-16 00:11:32 +020025#include <asm/kvm_book3s_asm.h>
Alexander Graf4e3420252009-10-30 05:47:05 +000026
Alexander Graf4e3420252009-10-30 05:47:05 +000027struct kvmppc_bat {
Alexander Grafe15a1132009-11-30 03:02:02 +000028 u64 raw;
Alexander Graf4e3420252009-10-30 05:47:05 +000029 u32 bepi;
30 u32 bepi_mask;
Alexander Graf4e3420252009-10-30 05:47:05 +000031 u32 brpn;
32 u8 wimg;
33 u8 pp;
Alexander Graf3ed9c6d2010-03-24 21:48:36 +010034 bool vs : 1;
35 bool vp : 1;
Alexander Graf4e3420252009-10-30 05:47:05 +000036};
37
38struct kvmppc_sid_map {
39 u64 guest_vsid;
40 u64 guest_esid;
41 u64 host_vsid;
Alexander Graf3ed9c6d2010-03-24 21:48:36 +010042 bool valid : 1;
Alexander Graf4e3420252009-10-30 05:47:05 +000043};
44
45#define SID_MAP_BITS 9
46#define SID_MAP_NUM (1 << SID_MAP_BITS)
47#define SID_MAP_MASK (SID_MAP_NUM - 1)
48
Alexander Graf8b6db3b2010-08-15 08:04:24 +020049#ifdef CONFIG_PPC_BOOK3S_64
50#define SID_CONTEXTS 1
51#else
52#define SID_CONTEXTS 128
53#define VSID_POOL_SIZE (SID_CONTEXTS * 16)
54#endif
55
Paul Mackerrasc4befc52011-06-29 00:17:33 +000056struct hpte_cache {
57 struct hlist_node list_pte;
58 struct hlist_node list_pte_long;
59 struct hlist_node list_vpte;
60 struct hlist_node list_vpte_long;
Paul Mackerrasa4a0f252013-09-20 14:52:44 +100061#ifdef CONFIG_PPC_BOOK3S_64
62 struct hlist_node list_vpte_64k;
63#endif
Paul Mackerrasc4befc52011-06-29 00:17:33 +000064 struct rcu_head rcu_head;
Aneesh Kumar K.V5524a272012-09-10 02:52:50 +000065 u64 host_vpn;
Paul Mackerrasc4befc52011-06-29 00:17:33 +000066 u64 pfn;
67 ulong slot;
68 struct kvmppc_pte pte;
Paul Mackerrasc9029c32013-09-20 14:52:45 +100069 int pagesize;
Paul Mackerrasc4befc52011-06-29 00:17:33 +000070};
71
Alexander Graf4e3420252009-10-30 05:47:05 +000072struct kvmppc_vcpu_book3s {
Alexander Graf4e3420252009-10-30 05:47:05 +000073 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
Alexander Graf4e3420252009-10-30 05:47:05 +000074 struct {
75 u64 esid;
76 u64 vsid;
77 } slb_shadow[64];
78 u8 slb_shadow_max;
Alexander Graf4e3420252009-10-30 05:47:05 +000079 struct kvmppc_bat ibat[8];
80 struct kvmppc_bat dbat[8];
81 u64 hid[6];
Alexander Grafd6d549b2010-02-19 11:00:33 +010082 u64 gqr[8];
Alexander Graf4e3420252009-10-30 05:47:05 +000083 u64 sdr1;
Alexander Graf4e3420252009-10-30 05:47:05 +000084 u64 hior;
85 u64 msr_mask;
Alexander Graf8b6db3b2010-08-15 08:04:24 +020086#ifdef CONFIG_PPC_BOOK3S_32
87 u32 vsid_pool[VSID_POOL_SIZE];
Benjamin Herrenschmidtffe36492012-03-23 11:21:14 +110088 u32 vsid_next;
Alexander Graf8b6db3b2010-08-15 08:04:24 +020089#else
Benjamin Herrenschmidtffe36492012-03-23 11:21:14 +110090 u64 proto_vsid_first;
91 u64 proto_vsid_max;
92 u64 proto_vsid_next;
Alexander Graf8b6db3b2010-08-15 08:04:24 +020093#endif
94 int context_id[SID_CONTEXTS];
Paul Mackerrasc4befc52011-06-29 00:17:33 +000095
Alexander Graf1022fc32011-09-14 21:45:23 +020096 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
97
Paul Mackerrasc4befc52011-06-29 00:17:33 +000098 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
99 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
100 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
101 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
Paul Mackerrasa4a0f252013-09-20 14:52:44 +1000102#ifdef CONFIG_PPC_BOOK3S_64
103 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
104#endif
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000105 int hpte_cache_count;
106 spinlock_t mmu_lock;
Alexander Graf4e3420252009-10-30 05:47:05 +0000107};
108
Paul Mackerrasc9029c32013-09-20 14:52:45 +1000109#define VSID_REAL 0x07ffffffffc00000ULL
110#define VSID_BAT 0x07ffffffffb00000ULL
111#define VSID_64K 0x0800000000000000ULL
Paul Mackerras0f296822013-06-22 17:16:32 +1000112#define VSID_1T 0x1000000000000000ULL
Alexander Graff7bc74e2010-04-20 02:49:48 +0200113#define VSID_REAL_DR 0x2000000000000000ULL
114#define VSID_REAL_IR 0x4000000000000000ULL
Alexander Graf5a1b4192010-03-24 21:48:35 +0100115#define VSID_PR 0x8000000000000000ULL
Alexander Graf4e3420252009-10-30 05:47:05 +0000116
Alexander Grafaf7b4d12010-04-20 02:49:46 +0200117extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
Alexander Graf4e3420252009-10-30 05:47:05 +0000118extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
Alexander Grafaf7b4d12010-04-20 02:49:46 +0200119extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
Alexander Graf4e3420252009-10-30 05:47:05 +0000120extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
121extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
122extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000123extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
Paul Mackerras93b159b2013-09-20 14:52:51 +1000124extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
125 bool iswrite);
126extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
Alexander Graf4e3420252009-10-30 05:47:05 +0000127extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
Paul Mackerras0f296822013-06-22 17:16:32 +1000128extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
Alexander Graf4e3420252009-10-30 05:47:05 +0000129extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
Paul Mackerras697d3892011-12-12 12:36:37 +0000130extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
131 struct kvm_vcpu *vcpu, unsigned long addr,
132 unsigned long status);
133extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
134 unsigned long slb_v, unsigned long valid);
Alexander Graffef093be2010-06-30 15:18:46 +0200135
136extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
137extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
Paul Mackerrasd78bca72013-09-20 14:52:52 +1000138extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
Alexander Graffef093be2010-06-30 15:18:46 +0200139extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
140extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
141extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
142extern int kvmppc_mmu_hpte_sysinit(void);
143extern void kvmppc_mmu_hpte_sysexit(void);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000144extern int kvmppc_mmu_hv_init(void);
Paul Mackerrasae2113a2014-06-02 11:03:00 +1000145extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
Alexander Graffef093be2010-06-30 15:18:46 +0200146
Alexander Graf35c4a732014-06-20 13:58:16 +0200147/* XXX remove this export when load_last_inst() is generic */
Alexander Graf5467a972010-02-19 11:00:38 +0100148extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
Alexander Graf4e3420252009-10-30 05:47:05 +0000149extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
Benjamin Herrenschmidtbc5ad3f2013-04-17 20:30:26 +0000150extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
151 unsigned int vec);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000152extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
Alexander Grafe15a1132009-11-30 03:02:02 +0000153extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
154 bool upper, u32 val);
Alexander Grafaba3bd72010-02-19 11:00:39 +0100155extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
Alexander Graf831317b2010-02-19 11:00:44 +0100156extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
Dan Williamsba049e92016-01-15 16:56:11 -0800157extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa,
158 bool writing, bool *writable);
Paul Mackerras342d3db2011-12-12 12:38:05 +0000159extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
160 unsigned long *rmap, long pte_index, int realmode);
Paul Mackerras08fe1e72015-06-24 21:18:06 +1000161extern void kvmppc_update_rmap_change(unsigned long *rmap, unsigned long psize);
Alexander Graf6f22bd32014-06-11 10:16:06 +0200162extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
Paul Mackerras342d3db2011-12-12 12:38:05 +0000163 unsigned long pte_index);
Alexander Graf6f22bd32014-06-11 10:16:06 +0200164void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
Paul Mackerras55514892011-12-15 02:02:47 +0000165 unsigned long pte_index);
Paul Mackerras93e60242011-12-12 12:28:55 +0000166extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
167 unsigned long *nb_ret);
Paul Mackerrasc35635e2013-04-18 19:51:04 +0000168extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
169 unsigned long gpa, bool dirty);
Paul Mackerras7ed661b2012-11-13 18:31:32 +0000170extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
171 long pte_index, unsigned long pteh, unsigned long ptel,
172 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
Paul Mackerras6b445ad2012-11-19 22:55:44 +0000173extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
174 unsigned long pte_index, unsigned long avpn,
175 unsigned long *hpret);
Paul Mackerras82ed3612011-12-15 02:03:22 +0000176extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
Paul Mackerrasdfe49db2012-09-11 13:28:18 +0000177 struct kvm_memory_slot *memslot, unsigned long *map);
Paul Mackerrasa0144e22013-09-20 14:52:38 +1000178extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
179 unsigned long mask);
Alexander Graf8e6afa32014-07-31 10:21:59 +0200180extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
Alexander Graf4e3420252009-10-30 05:47:05 +0000181
Paul Mackerras02143942011-07-23 17:41:44 +1000182extern void kvmppc_entry_trampoline(void);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000183extern void kvmppc_hv_entry_trampoline(void);
Alexander Grafca7f4202010-03-24 21:48:28 +0100184extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
185extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
Alexander Graf0254f0742011-08-08 17:21:15 +0200186extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
Paul Mackerras699a0ea2014-06-02 11:02:59 +1000187extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
Paul Mackerrasae2113a2014-06-02 11:03:00 +1000188extern int kvmppc_hcall_impl_pr(unsigned long cmd);
189extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
Alexander Grafc9dad7f2013-11-29 02:27:23 +0100190extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
191 struct kvm_vcpu *vcpu);
192extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
193 struct kvmppc_book3s_shadow_vcpu *svcpu);
Alexander Graf4e3420252009-10-30 05:47:05 +0000194
195static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
196{
Paul Mackerras3ff95502013-09-20 14:52:49 +1000197 return vcpu->arch.book3s;
Alexander Graf4e3420252009-10-30 05:47:05 +0000198}
199
Paul Mackerrasde56a942011-06-29 00:21:34 +0000200/* Also add subarch specific defines */
201
202#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
203#include <asm/kvm_book3s_32.h>
204#endif
205#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
206#include <asm/kvm_book3s_64.h>
207#endif
208
Paul Mackerrasde56a942011-06-29 00:21:34 +0000209static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
210{
211 vcpu->arch.gpr[num] = val;
212}
213
214static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
215{
216 return vcpu->arch.gpr[num];
217}
218
219static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
220{
221 vcpu->arch.cr = val;
222}
223
224static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
225{
226 return vcpu->arch.cr;
227}
228
Sam bobroffc63517c2015-05-27 09:56:57 +1000229static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000230{
231 vcpu->arch.xer = val;
232}
233
Sam bobroffc63517c2015-05-27 09:56:57 +1000234static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000235{
236 return vcpu->arch.xer;
237}
238
239static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
240{
241 vcpu->arch.ctr = val;
242}
243
244static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
245{
246 return vcpu->arch.ctr;
247}
248
249static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
250{
251 vcpu->arch.lr = val;
252}
253
254static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
255{
256 return vcpu->arch.lr;
257}
258
259static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
260{
261 vcpu->arch.pc = val;
262}
263
264static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
265{
266 return vcpu->arch.pc;
267}
268
Alexander Graf5deb8e72014-04-24 13:46:24 +0200269static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
Cédric Le Goater73601772014-01-09 11:51:16 +0100270static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000271{
Alexander Graf5deb8e72014-04-24 13:46:24 +0200272 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
Cédric Le Goater73601772014-01-09 11:51:16 +0100273}
Paul Mackerrasde56a942011-06-29 00:21:34 +0000274
Paul Mackerrasde56a942011-06-29 00:21:34 +0000275static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
276{
277 return vcpu->arch.fault_dar;
278}
279
Greg Kurze59d24e2014-02-06 17:36:56 +0100280static inline bool is_kvmppc_resume_guest(int r)
281{
282 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
283}
284
Alexander Grafc12fb432014-06-20 14:43:36 +0200285static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
286static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
287{
288 /* Only PR KVM supports the magic page */
289 return !is_kvmppc_hv_enabled(vcpu->kvm);
290}
291
David Gibson99342cf82015-02-05 11:53:25 +1100292extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu);
293extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
294
Alexander Grafad0a0482010-03-24 21:48:30 +0100295/* Magic register values loaded into r3 and r4 before the 'sc' assembly
296 * instruction for the OSI hypercalls */
297#define OSI_SC_MAGIC_R3 0x113724FA
298#define OSI_SC_MAGIC_R4 0x77810F9B
299
Alexander Graf4e3420252009-10-30 05:47:05 +0000300#define INS_DCBZ 0x7c0007ec
Bharat Bhushan8c32a2e2013-03-20 20:24:58 +0000301/* TO = 31 for unconditional trap */
302#define INS_TW 0x7fe00008
Alexander Graf4e3420252009-10-30 05:47:05 +0000303
Scott Wood043cc4d2011-12-20 15:34:20 +0000304/* LPIDs we support with this build -- runtime limit may be lower */
305#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
306
Alexander Grafc01e3f62014-07-11 02:58:58 +0200307#define SPLIT_HACK_MASK 0xff000000
308#define SPLIT_HACK_OFFS 0xfb000000
309
Alexander Graf4e3420252009-10-30 05:47:05 +0000310#endif /* __ASM_KVM_BOOK3S_H__ */