Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm-5.4 / 1e5bf454f58731e360e504253e85bae7aaa2d298 / . / arch / powerpc / include / asm / kvm_book3s.h
blob: b91e74a817d89742355e547c61b9ce36a243f11b [file] [log] [blame]
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License, version 2, as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
10 *
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
14 *
15 * Copyright 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 +0200[diff] [blame]25#include <asm/kvm_book3s_asm.h>
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]26
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]27struct kvmppc_bat {
Alexander Grafe15a1132009-11-30 03:02:02 +0000[diff] [blame]28 u64 raw;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]29 u32 bepi;
30 u32 bepi_mask;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]31 u32 brpn;
32 u8 wimg;
33 u8 pp;
Alexander Graf3ed9c6d2010-03-24 21:48:36 +0100[diff] [blame]34 bool vs : 1;
35 bool vp : 1;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]36};
37
38struct kvmppc_sid_map {
39 u64 guest_vsid;
40 u64 guest_esid;
41 u64 host_vsid;
Alexander Graf3ed9c6d2010-03-24 21:48:36 +0100[diff] [blame]42 bool valid : 1;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]43};
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 +0200[diff] [blame]49#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 +0000[diff] [blame]56struct 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 +1000[diff] [blame]61#ifdef CONFIG_PPC_BOOK3S_64
62 struct hlist_node list_vpte_64k;
63#endif
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]64 struct rcu_head rcu_head;
Aneesh Kumar K.V5524a272012-09-10 02:52:50 +0000[diff] [blame]65 u64 host_vpn;
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]66 u64 pfn;
67 ulong slot;
68 struct kvmppc_pte pte;
Paul Mackerrasc9029c32013-09-20 14:52:45 +1000[diff] [blame]69 int pagesize;
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]70};
71
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]72struct kvmppc_vcpu_book3s {
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]73 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]74 struct {
75 u64 esid;
76 u64 vsid;
77 } slb_shadow[64];
78 u8 slb_shadow_max;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]79 struct kvmppc_bat ibat[8];
80 struct kvmppc_bat dbat[8];
81 u64 hid[6];
Alexander Grafd6d549b2010-02-19 11:00:33 +0100[diff] [blame]82 u64 gqr[8];
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]83 u64 sdr1;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]84 u64 hior;
85 u64 msr_mask;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]86#ifdef CONFIG_PPC_BOOK3S_32
87 u32 vsid_pool[VSID_POOL_SIZE];
Benjamin Herrenschmidtffe36492012-03-23 11:21:14 +1100[diff] [blame]88 u32 vsid_next;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]89#else
Benjamin Herrenschmidtffe36492012-03-23 11:21:14 +1100[diff] [blame]90 u64 proto_vsid_first;
91 u64 proto_vsid_max;
92 u64 proto_vsid_next;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]93#endif
94 int context_id[SID_CONTEXTS];
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]95
Alexander Graf1022fc32011-09-14 21:45:23 +0200[diff] [blame]96 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
97
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]98 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 +1000[diff] [blame]102#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 +0000[diff] [blame]105 int hpte_cache_count;
106 spinlock_t mmu_lock;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]107};
108
Paul Mackerrasc9029c32013-09-20 14:52:45 +1000[diff] [blame]109#define VSID_REAL 0x07ffffffffc00000ULL
110#define VSID_BAT 0x07ffffffffb00000ULL
111#define VSID_64K 0x0800000000000000ULL
Paul Mackerras0f296822013-06-22 17:16:32 +1000[diff] [blame]112#define VSID_1T 0x1000000000000000ULL
Alexander Graff7bc74e2010-04-20 02:49:48 +0200[diff] [blame]113#define VSID_REAL_DR 0x2000000000000000ULL
114#define VSID_REAL_IR 0x4000000000000000ULL
Alexander Graf5a1b4192010-03-24 21:48:35 +0100[diff] [blame]115#define VSID_PR 0x8000000000000000ULL
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]116
Alexander Grafaf7b4d12010-04-20 02:49:46 +0200[diff] [blame]117extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]118extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
Alexander Grafaf7b4d12010-04-20 02:49:46 +0200[diff] [blame]119extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]120extern 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 +0000[diff] [blame]123extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
Paul Mackerras93b159b2013-09-20 14:52:51 +1000[diff] [blame]124extern 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 +0000[diff] [blame]127extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
Paul Mackerras0f296822013-06-22 17:16:32 +1000[diff] [blame]128extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]129extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
Paul Mackerras697d3892011-12-12 12:36:37 +0000[diff] [blame]130extern 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 +0200[diff] [blame]135
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 +1000[diff] [blame]138extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
Alexander Graffef093be2010-06-30 15:18:46 +0200[diff] [blame]139extern 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 +0000[diff] [blame]144extern int kvmppc_mmu_hv_init(void);
Paul Mackerrasae2113a2014-06-02 11:03:00 +1000[diff] [blame]145extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
Alexander Graffef093be2010-06-30 15:18:46 +0200[diff] [blame]146
Alexander Graf35c4a732014-06-20 13:58:16 +0200[diff] [blame]147/* XXX remove this export when load_last_inst() is generic */
Alexander Graf5467a972010-02-19 11:00:38 +0100[diff] [blame]148extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]149extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
Benjamin Herrenschmidtbc5ad3f2013-04-17 20:30:26 +0000[diff] [blame]150extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
151 unsigned int vec);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]152extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
Alexander Grafe15a1132009-11-30 03:02:02 +0000[diff] [blame]153extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
154 bool upper, u32 val);
Alexander Grafaba3bd72010-02-19 11:00:39 +0100[diff] [blame]155extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
Alexander Graf831317b2010-02-19 11:00:44 +0100[diff] [blame]156extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
Alexander Graf89b68c92014-07-13 16:37:12 +0200[diff] [blame]157extern pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing,
Paul Mackerras93b159b2013-09-20 14:52:51 +1000[diff] [blame]158 bool *writable);
Paul Mackerras342d3db2011-12-12 12:38:05 +0000[diff] [blame]159extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
160 unsigned long *rmap, long pte_index, int realmode);
Alexander Graf6f22bd32014-06-11 10:16:06 +0200[diff] [blame]161extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
Paul Mackerras342d3db2011-12-12 12:38:05 +0000[diff] [blame]162 unsigned long pte_index);
Alexander Graf6f22bd32014-06-11 10:16:06 +0200[diff] [blame]163void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
Paul Mackerras55514892011-12-15 02:02:47 +0000[diff] [blame]164 unsigned long pte_index);
Paul Mackerras93e60242011-12-12 12:28:55 +0000[diff] [blame]165extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
166 unsigned long *nb_ret);
Paul Mackerrasc35635e2013-04-18 19:51:04 +0000[diff] [blame]167extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
168 unsigned long gpa, bool dirty);
Paul Mackerras7ed661b2012-11-13 18:31:32 +0000[diff] [blame]169extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
170 long pte_index, unsigned long pteh, unsigned long ptel,
171 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
Paul Mackerras6b445ad2012-11-19 22:55:44 +0000[diff] [blame]172extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
173 unsigned long pte_index, unsigned long avpn,
174 unsigned long *hpret);
Paul Mackerras82ed3612011-12-15 02:03:22 +0000[diff] [blame]175extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
Paul Mackerrasdfe49db2012-09-11 13:28:18 +0000[diff] [blame]176 struct kvm_memory_slot *memslot, unsigned long *map);
Paul Mackerrasa0144e22013-09-20 14:52:38 +1000[diff] [blame]177extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
178 unsigned long mask);
Alexander Graf8e6afa32014-07-31 10:21:59 +0200[diff] [blame]179extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]180
Paul Mackerras02143942011-07-23 17:41:44 +1000[diff] [blame]181extern void kvmppc_entry_trampoline(void);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]182extern void kvmppc_hv_entry_trampoline(void);
Alexander Grafca7f4202010-03-24 21:48:28 +0100[diff] [blame]183extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
184extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
Alexander Graf0254f0742011-08-08 17:21:15 +0200[diff] [blame]185extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
Paul Mackerras699a0ea2014-06-02 11:02:59 +1000[diff] [blame]186extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
Paul Mackerrasae2113a2014-06-02 11:03:00 +1000[diff] [blame]187extern int kvmppc_hcall_impl_pr(unsigned long cmd);
188extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
Alexander Grafc9dad7f2013-11-29 02:27:23 +0100[diff] [blame]189extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
190 struct kvm_vcpu *vcpu);
191extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
192 struct kvmppc_book3s_shadow_vcpu *svcpu);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]193
194static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
195{
Paul Mackerras3ff95502013-09-20 14:52:49 +1000[diff] [blame]196 return vcpu->arch.book3s;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]197}
198
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]199/* Also add subarch specific defines */
200
201#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
202#include <asm/kvm_book3s_32.h>
203#endif
204#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
205#include <asm/kvm_book3s_64.h>
206#endif
207
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]208static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
209{
210 vcpu->arch.gpr[num] = val;
211}
212
213static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
214{
215 return vcpu->arch.gpr[num];
216}
217
218static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
219{
220 vcpu->arch.cr = val;
221}
222
223static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
224{
225 return vcpu->arch.cr;
226}
227
228static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
229{
230 vcpu->arch.xer = val;
231}
232
233static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
234{
235 return vcpu->arch.xer;
236}
237
238static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
239{
240 vcpu->arch.ctr = val;
241}
242
243static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
244{
245 return vcpu->arch.ctr;
246}
247
248static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
249{
250 vcpu->arch.lr = val;
251}
252
253static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
254{
255 return vcpu->arch.lr;
256}
257
258static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
259{
260 vcpu->arch.pc = val;
261}
262
263static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
264{
265 return vcpu->arch.pc;
266}
267
Alexander Graf5deb8e72014-04-24 13:46:24 +0200[diff] [blame]268static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
Cédric Le Goater73601772014-01-09 11:51:16 +0100[diff] [blame]269static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]270{
Alexander Graf5deb8e72014-04-24 13:46:24 +0200[diff] [blame]271 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
Cédric Le Goater73601772014-01-09 11:51:16 +0100[diff] [blame]272}
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]273
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]274static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
275{
276 return vcpu->arch.fault_dar;
277}
278
Greg Kurze59d24e2014-02-06 17:36:56 +0100[diff] [blame]279static inline bool is_kvmppc_resume_guest(int r)
280{
281 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
282}
283
Alexander Grafc12fb432014-06-20 14:43:36 +0200[diff] [blame]284static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
285static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
286{
287 /* Only PR KVM supports the magic page */
288 return !is_kvmppc_hv_enabled(vcpu->kvm);
289}
290
David Gibson99342cf82015-02-05 11:53:25 +1100[diff] [blame]291extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu);
292extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
293
Alexander Grafad0a0482010-03-24 21:48:30 +0100[diff] [blame]294/* Magic register values loaded into r3 and r4 before the 'sc' assembly
295 * instruction for the OSI hypercalls */
296#define OSI_SC_MAGIC_R3 0x113724FA
297#define OSI_SC_MAGIC_R4 0x77810F9B
298
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]299#define INS_DCBZ 0x7c0007ec
Bharat Bhushan8c32a2e2013-03-20 20:24:58 +0000[diff] [blame]300/* TO = 31 for unconditional trap */
301#define INS_TW 0x7fe00008
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]302
Scott Wood043cc4d2011-12-20 15:34:20 +0000[diff] [blame]303/* LPIDs we support with this build -- runtime limit may be lower */
304#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
305
Alexander Grafc01e3f62014-07-11 02:58:58 +0200[diff] [blame]306#define SPLIT_HACK_MASK 0xff000000
307#define SPLIT_HACK_OFFS 0xfb000000
308
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]309#endif /* __ASM_KVM_BOOK3S_H__ */