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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 8cf531ed48cfc76f370369a372802a65361df27c / . / arch / powerpc / include / asm / kvm_book3s.h
blob: d7aeb6f701a65127d61a9d80f295cba1080fd628 [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
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]72/*
73 * Struct for a virtual core.
74 * Note: entry_exit_map combines a bitmap of threads that have entered
75 * in the bottom 8 bits and a bitmap of threads that have exited in the
76 * next 8 bits. This is so that we can atomically set the entry bit
77 * iff the exit map is 0 without taking a lock.
78 */
79struct kvmppc_vcore {
80 int n_runnable;
81 int num_threads;
82 int entry_exit_map;
83 int napping_threads;
84 int first_vcpuid;
85 u16 pcpu;
86 u16 last_cpu;
87 u8 vcore_state;
88 u8 in_guest;
Suraj Jitindar Singh7b5f8272016-08-02 14:03:20 +1000[diff] [blame]89 struct kvm_vcpu *runnable_threads[MAX_SMT_THREADS];
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]90 struct list_head preempt_list;
91 spinlock_t lock;
92 struct swait_queue_head wq;
93 spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
94 u64 stolen_tb;
95 u64 preempt_tb;
96 struct kvm_vcpu *runner;
97 struct kvm *kvm;
98 u64 tb_offset; /* guest timebase - host timebase */
Paul Mackerras57b8daa2018-04-20 22:51:11 +1000[diff] [blame]99 u64 tb_offset_applied; /* timebase offset currently in force */
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]100 ulong lpcr;
101 u32 arch_compat;
102 ulong pcr;
103 ulong dpdes; /* doorbell state (POWER8) */
Paul Mackerras88b02cf92016-09-15 13:42:52 +1000[diff] [blame]104 ulong vtb; /* virtual timebase */
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]105 ulong conferring_threads;
Suraj Jitindar Singh0cda69d2016-08-02 14:03:21 +1000[diff] [blame]106 unsigned int halt_poll_ns;
Paul Mackerras7aa15842018-04-20 19:53:22 +1000[diff] [blame]107 atomic_t online_count;
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]108};
109
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]110struct kvmppc_vcpu_book3s {
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]111 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]112 struct {
113 u64 esid;
114 u64 vsid;
115 } slb_shadow[64];
116 u8 slb_shadow_max;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]117 struct kvmppc_bat ibat[8];
118 struct kvmppc_bat dbat[8];
119 u64 hid[6];
Alexander Grafd6d549b2010-02-19 11:00:33 +0100[diff] [blame]120 u64 gqr[8];
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]121 u64 sdr1;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]122 u64 hior;
123 u64 msr_mask;
Paul Mackerras88b02cf92016-09-15 13:42:52 +1000[diff] [blame]124 u64 vtb;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]125#ifdef CONFIG_PPC_BOOK3S_32
126 u32 vsid_pool[VSID_POOL_SIZE];
Benjamin Herrenschmidtffe36492012-03-23 11:21:14 +1100[diff] [blame]127 u32 vsid_next;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]128#else
Benjamin Herrenschmidtffe36492012-03-23 11:21:14 +1100[diff] [blame]129 u64 proto_vsid_first;
130 u64 proto_vsid_max;
131 u64 proto_vsid_next;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]132#endif
133 int context_id[SID_CONTEXTS];
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]134
Alexander Graf1022fc32011-09-14 21:45:23 +0200[diff] [blame]135 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
136
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]137 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
138 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
139 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
140 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
Paul Mackerrasa4a0f252013-09-20 14:52:44 +1000[diff] [blame]141#ifdef CONFIG_PPC_BOOK3S_64
142 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
143#endif
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]144 int hpte_cache_count;
145 spinlock_t mmu_lock;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]146};
147
Paul Mackerrasc9029c32013-09-20 14:52:45 +1000[diff] [blame]148#define VSID_REAL 0x07ffffffffc00000ULL
149#define VSID_BAT 0x07ffffffffb00000ULL
150#define VSID_64K 0x0800000000000000ULL
Paul Mackerras0f296822013-06-22 17:16:32 +1000[diff] [blame]151#define VSID_1T 0x1000000000000000ULL
Alexander Graff7bc74e2010-04-20 02:49:48 +0200[diff] [blame]152#define VSID_REAL_DR 0x2000000000000000ULL
153#define VSID_REAL_IR 0x4000000000000000ULL
Alexander Graf5a1b4192010-03-24 21:48:35 +0100[diff] [blame]154#define VSID_PR 0x8000000000000000ULL
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]155
Alexander Grafaf7b4d12010-04-20 02:49:46 +0200[diff] [blame]156extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]157extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
Alexander Grafaf7b4d12010-04-20 02:49:46 +0200[diff] [blame]158extern 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]159extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
160extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
161extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]162extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
Paul Mackerras93b159b2013-09-20 14:52:51 +1000[diff] [blame]163extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
164 bool iswrite);
165extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]166extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
Paul Mackerras0f296822013-06-22 17:16:32 +1000[diff] [blame]167extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]168extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
Paul Mackerras697d3892011-12-12 12:36:37 +0000[diff] [blame]169extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
170 struct kvm_vcpu *vcpu, unsigned long addr,
171 unsigned long status);
172extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
173 unsigned long slb_v, unsigned long valid);
Paul Mackerras5a319352017-01-30 21:21:46 +1100[diff] [blame]174extern int kvmppc_hv_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu,
175 unsigned long gpa, gva_t ea, int is_store);
Alexander Graffef093be2010-06-30 15:18:46 +0200[diff] [blame]176
177extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
178extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
Paul Mackerrasd78bca72013-09-20 14:52:52 +1000[diff] [blame]179extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
Alexander Graffef093be2010-06-30 15:18:46 +0200[diff] [blame]180extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
181extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
182extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
183extern int kvmppc_mmu_hpte_sysinit(void);
184extern void kvmppc_mmu_hpte_sysexit(void);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]185extern int kvmppc_mmu_hv_init(void);
Paul Mackerrasae2113a2014-06-02 11:03:00 +1000[diff] [blame]186extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
Alexander Graffef093be2010-06-30 15:18:46 +0200[diff] [blame]187
Paul Mackerras5a319352017-01-30 21:21:46 +1100[diff] [blame]188extern int kvmppc_book3s_radix_page_fault(struct kvm_run *run,
189 struct kvm_vcpu *vcpu,
190 unsigned long ea, unsigned long dsisr);
Suraj Jitindar Singhfd10be22018-10-08 16:31:07 +1100[diff] [blame]191extern int kvmppc_mmu_walk_radix_tree(struct kvm_vcpu *vcpu, gva_t eaddr,
192 struct kvmppc_pte *gpte, u64 root,
193 u64 *pte_ret_p);
Suraj Jitindar Singh9811c782018-10-08 16:31:00 +1100[diff] [blame]194extern int kvmppc_mmu_radix_translate_table(struct kvm_vcpu *vcpu, gva_t eaddr,
195 struct kvmppc_pte *gpte, u64 table,
196 int table_index, u64 *pte_ret_p);
Paul Mackerras9e04ba62017-01-30 21:21:44 +1100[diff] [blame]197extern int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
198 struct kvmppc_pte *gpte, bool data, bool iswrite);
Suraj Jitindar Singh8cf531e2018-10-08 16:31:08 +1100[diff] [blame^]199extern void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa,
200 unsigned int shift, struct kvm_memory_slot *memslot,
201 unsigned int lpid);
Suraj Jitindar Singhfd10be22018-10-08 16:31:07 +1100[diff] [blame]202extern bool kvmppc_hv_handle_set_rc(struct kvm *kvm, pgd_t *pgtable,
203 bool writing, unsigned long gpa,
204 unsigned int lpid);
205extern int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu,
206 unsigned long gpa,
207 struct kvm_memory_slot *memslot,
208 bool writing, bool kvm_ro,
209 pte_t *inserted_pte, unsigned int *levelp);
Paul Mackerras8cf4ecc2017-01-30 21:21:53 +1100[diff] [blame]210extern int kvmppc_init_vm_radix(struct kvm *kvm);
Paul Mackerras5a319352017-01-30 21:21:46 +1100[diff] [blame]211extern void kvmppc_free_radix(struct kvm *kvm);
Suraj Jitindar Singhfd10be22018-10-08 16:31:07 +1100[diff] [blame]212extern void kvmppc_free_pgtable_radix(struct kvm *kvm, pgd_t *pgd,
213 unsigned int lpid);
Paul Mackerras5a319352017-01-30 21:21:46 +1100[diff] [blame]214extern int kvmppc_radix_init(void);
215extern void kvmppc_radix_exit(void);
Paul Mackerras01756092017-01-30 21:21:47 +1100[diff] [blame]216extern int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
217 unsigned long gfn);
Suraj Jitindar Singhfd10be22018-10-08 16:31:07 +1100[diff] [blame]218extern void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte,
219 unsigned long gpa, unsigned int shift,
220 struct kvm_memory_slot *memslot,
221 unsigned int lpid);
Paul Mackerras01756092017-01-30 21:21:47 +1100[diff] [blame]222extern int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
223 unsigned long gfn);
224extern int kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
225 unsigned long gfn);
Paul Mackerras8f7b79b2017-01-30 21:21:48 +1100[diff] [blame]226extern long kvmppc_hv_get_dirty_log_radix(struct kvm *kvm,
227 struct kvm_memory_slot *memslot, unsigned long *map);
Paul Mackerras8cf4ecc2017-01-30 21:21:53 +1100[diff] [blame]228extern int kvmhv_get_rmmu_info(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
Paul Mackerras9e04ba62017-01-30 21:21:44 +1100[diff] [blame]229
Alexander Graf35c4a732014-06-20 13:58:16 +0200[diff] [blame]230/* XXX remove this export when load_last_inst() is generic */
Alexander Graf5467a972010-02-19 11:00:38 +0100[diff] [blame]231extern 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]232extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
Benjamin Herrenschmidtbc5ad3f2013-04-17 20:30:26 +0000[diff] [blame]233extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
234 unsigned int vec);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]235extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
Simon Guo533082a2018-05-23 15:02:00 +0800[diff] [blame]236extern void kvmppc_trigger_fac_interrupt(struct kvm_vcpu *vcpu, ulong fac);
Alexander Grafe15a1132009-11-30 03:02:02 +0000[diff] [blame]237extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
238 bool upper, u32 val);
Alexander Grafaba3bd72010-02-19 11:00:39 +0100[diff] [blame]239extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
Alexander Graf831317b2010-02-19 11:00:44 +0100[diff] [blame]240extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
Dan Williamsba049e92016-01-15 16:56:11 -0800[diff] [blame]241extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa,
242 bool writing, bool *writable);
Paul Mackerras342d3db2011-12-12 12:38:05 +0000[diff] [blame]243extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
244 unsigned long *rmap, long pte_index, int realmode);
Paul Mackerrase641a312017-10-26 16:39:19 +1100[diff] [blame]245extern void kvmppc_update_dirty_map(struct kvm_memory_slot *memslot,
246 unsigned long gfn, unsigned long psize);
Alexander Graf6f22bd32014-06-11 10:16:06 +0200[diff] [blame]247extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
Paul Mackerras342d3db2011-12-12 12:38:05 +0000[diff] [blame]248 unsigned long pte_index);
Alexander Graf6f22bd32014-06-11 10:16:06 +0200[diff] [blame]249void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
Paul Mackerras55514892011-12-15 02:02:47 +0000[diff] [blame]250 unsigned long pte_index);
Paul Mackerras93e60242011-12-12 12:28:55 +0000[diff] [blame]251extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
252 unsigned long *nb_ret);
Paul Mackerrasc35635e2013-04-18 19:51:04 +0000[diff] [blame]253extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
254 unsigned long gpa, bool dirty);
Paul Mackerras7ed661b2012-11-13 18:31:32 +0000[diff] [blame]255extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
256 long pte_index, unsigned long pteh, unsigned long ptel,
257 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
Paul Mackerras6b445ad2012-11-19 22:55:44 +0000[diff] [blame]258extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
259 unsigned long pte_index, unsigned long avpn,
260 unsigned long *hpret);
Paul Mackerras8f7b79b2017-01-30 21:21:48 +1100[diff] [blame]261extern long kvmppc_hv_get_dirty_log_hpt(struct kvm *kvm,
Paul Mackerrasdfe49db2012-09-11 13:28:18 +0000[diff] [blame]262 struct kvm_memory_slot *memslot, unsigned long *map);
Paul Mackerras8f7b79b2017-01-30 21:21:48 +1100[diff] [blame]263extern void kvmppc_harvest_vpa_dirty(struct kvmppc_vpa *vpa,
264 struct kvm_memory_slot *memslot,
265 unsigned long *map);
Paul Mackerrasa0144e22013-09-20 14:52:38 +1000[diff] [blame]266extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
267 unsigned long mask);
Alexander Graf8e6afa32014-07-31 10:21:59 +0200[diff] [blame]268extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]269
Paul Mackerras4bb3c7a2018-03-21 21:32:01 +1100[diff] [blame]270extern int kvmhv_p9_tm_emulation_early(struct kvm_vcpu *vcpu);
271extern int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu);
272extern void kvmhv_emulate_tm_rollback(struct kvm_vcpu *vcpu);
273
Paul Mackerras02143942011-07-23 17:41:44 +1000[diff] [blame]274extern void kvmppc_entry_trampoline(void);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]275extern void kvmppc_hv_entry_trampoline(void);
Alexander Grafca7f4202010-03-24 21:48:28 +0100[diff] [blame]276extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
277extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
Alexander Graf0254f0742011-08-08 17:21:15 +0200[diff] [blame]278extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
Paul Mackerras699a0ea2014-06-02 11:02:59 +1000[diff] [blame]279extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
Paul Mackerrasae2113a2014-06-02 11:03:00 +1000[diff] [blame]280extern int kvmppc_hcall_impl_pr(unsigned long cmd);
281extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
Alexander Graf07ae5382018-01-31 22:24:58 +0100[diff] [blame]282extern void kvmppc_copy_to_svcpu(struct kvm_vcpu *vcpu);
283extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu);
Simon Guo8d2e2fc2018-05-23 15:01:58 +0800[diff] [blame]284
285#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
286void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu);
287void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu);
Simon Guoe32c53d2018-05-23 15:02:04 +0800[diff] [blame]288void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu);
Simon Guo57063402018-05-23 15:02:01 +0800[diff] [blame]289void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu);
Simon Guo8d2e2fc2018-05-23 15:01:58 +0800[diff] [blame]290#else
291static inline void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu) {}
292static inline void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu) {}
Simon Guoe32c53d2018-05-23 15:02:04 +0800[diff] [blame]293static inline void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu) {}
Simon Guo57063402018-05-23 15:02:01 +0800[diff] [blame]294static inline void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu) {}
Simon Guo8d2e2fc2018-05-23 15:01:58 +0800[diff] [blame]295#endif
296
Paul Mackerras8e3f5fc2018-10-08 16:31:03 +1100[diff] [blame]297long kvmhv_nested_init(void);
298void kvmhv_nested_exit(void);
299void kvmhv_vm_nested_init(struct kvm *kvm);
300long kvmhv_set_partition_table(struct kvm_vcpu *vcpu);
301void kvmhv_set_ptbl_entry(unsigned int lpid, u64 dw0, u64 dw1);
302void kvmhv_release_all_nested(struct kvm *kvm);
Paul Mackerras360cae32018-10-08 16:31:04 +1100[diff] [blame]303long kvmhv_enter_nested_guest(struct kvm_vcpu *vcpu);
304int kvmhv_run_single_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu,
305 u64 time_limit, unsigned long lpcr);
306void kvmhv_save_hv_regs(struct kvm_vcpu *vcpu, struct hv_guest_state *hr);
307void kvmhv_restore_hv_return_state(struct kvm_vcpu *vcpu,
308 struct hv_guest_state *hr);
309long int kvmhv_nested_page_fault(struct kvm_vcpu *vcpu);
Paul Mackerras8e3f5fc2018-10-08 16:31:03 +1100[diff] [blame]310
Simon Guo7284ca82018-05-23 15:02:07 +0800[diff] [blame]311void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac);
312
Suresh Warrier644abbb2016-08-19 15:35:54 +1000[diff] [blame]313extern int kvm_irq_bypass;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]314
315static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
316{
Paul Mackerras3ff95502013-09-20 14:52:49 +1000[diff] [blame]317 return vcpu->arch.book3s;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]318}
319
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]320/* Also add subarch specific defines */
321
322#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
323#include <asm/kvm_book3s_32.h>
324#endif
325#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
326#include <asm/kvm_book3s_64.h>
327#endif
328
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]329static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
330{
Simon Guo1143a702018-05-07 14:20:07 +0800[diff] [blame]331 vcpu->arch.regs.gpr[num] = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]332}
333
334static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
335{
Simon Guo1143a702018-05-07 14:20:07 +0800[diff] [blame]336 return vcpu->arch.regs.gpr[num];
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]337}
338
339static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
340{
Paul Mackerrasfd0944b2018-10-08 16:30:58 +1100[diff] [blame]341 vcpu->arch.regs.ccr = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]342}
343
344static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
345{
Paul Mackerrasfd0944b2018-10-08 16:30:58 +1100[diff] [blame]346 return vcpu->arch.regs.ccr;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]347}
348
Sam bobroffc63517c2015-05-27 09:56:57 +1000[diff] [blame]349static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]350{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]351 vcpu->arch.regs.xer = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]352}
353
Sam bobroffc63517c2015-05-27 09:56:57 +1000[diff] [blame]354static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]355{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]356 return vcpu->arch.regs.xer;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]357}
358
359static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
360{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]361 vcpu->arch.regs.ctr = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]362}
363
364static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
365{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]366 return vcpu->arch.regs.ctr;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]367}
368
369static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
370{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]371 vcpu->arch.regs.link = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]372}
373
374static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
375{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]376 return vcpu->arch.regs.link;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]377}
378
379static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
380{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]381 vcpu->arch.regs.nip = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]382}
383
384static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
385{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]386 return vcpu->arch.regs.nip;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]387}
388
Alexander Graf5deb8e72014-04-24 13:46:24 +0200[diff] [blame]389static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
Cédric Le Goater73601772014-01-09 11:51:16 +0100[diff] [blame]390static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]391{
Alexander Graf5deb8e72014-04-24 13:46:24 +0200[diff] [blame]392 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
Cédric Le Goater73601772014-01-09 11:51:16 +0100[diff] [blame]393}
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]394
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]395static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
396{
397 return vcpu->arch.fault_dar;
398}
399
Greg Kurze59d24e2014-02-06 17:36:56 +0100[diff] [blame]400static inline bool is_kvmppc_resume_guest(int r)
401{
402 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
403}
404
Alexander Grafc12fb432014-06-20 14:43:36 +0200[diff] [blame]405static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
406static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
407{
408 /* Only PR KVM supports the magic page */
409 return !is_kvmppc_hv_enabled(vcpu->kvm);
410}
411
David Gibson99342cf82015-02-05 11:53:25 +1100[diff] [blame]412extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu);
413extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
414
Alexander Grafad0a0482010-03-24 21:48:30 +0100[diff] [blame]415/* Magic register values loaded into r3 and r4 before the 'sc' assembly
416 * instruction for the OSI hypercalls */
417#define OSI_SC_MAGIC_R3 0x113724FA
418#define OSI_SC_MAGIC_R4 0x77810F9B
419
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]420#define INS_DCBZ 0x7c0007ec
Bharat Bhushan8c32a2e2013-03-20 20:24:58 +0000[diff] [blame]421/* TO = 31 for unconditional trap */
422#define INS_TW 0x7fe00008
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]423
Alexander Grafc01e3f62014-07-11 02:58:58 +0200[diff] [blame]424#define SPLIT_HACK_MASK 0xff000000
425#define SPLIT_HACK_OFFS 0xfb000000
426
Sam Bobroff1e175d22018-07-25 16:12:02 +1000[diff] [blame]427/*
428 * This packs a VCPU ID from the [0..KVM_MAX_VCPU_ID) space down to the
429 * [0..KVM_MAX_VCPUS) space, using knowledge of the guest's core stride
430 * (but not its actual threading mode, which is not available) to avoid
431 * collisions.
432 *
433 * The implementation leaves VCPU IDs from the range [0..KVM_MAX_VCPUS) (block
434 * 0) unchanged: if the guest is filling each VCORE completely then it will be
435 * using consecutive IDs and it will fill the space without any packing.
436 *
437 * For higher VCPU IDs, the packed ID is based on the VCPU ID modulo
438 * KVM_MAX_VCPUS (effectively masking off the top bits) and then an offset is
439 * added to avoid collisions.
440 *
441 * VCPU IDs in the range [KVM_MAX_VCPUS..(KVM_MAX_VCPUS*2)) (block 1) are only
442 * possible if the guest is leaving at least 1/2 of each VCORE empty, so IDs
443 * can be safely packed into the second half of each VCORE by adding an offset
444 * of (stride / 2).
445 *
446 * Similarly, if VCPU IDs in the range [(KVM_MAX_VCPUS*2)..(KVM_MAX_VCPUS*4))
447 * (blocks 2 and 3) are seen, the guest must be leaving at least 3/4 of each
448 * VCORE empty so packed IDs can be offset by (stride / 4) and (stride * 3 / 4).
449 *
450 * Finally, VCPU IDs from blocks 5..7 will only be seen if the guest is using a
451 * stride of 8 and 1 thread per core so the remaining offsets of 1, 5, 3 and 7
452 * must be free to use.
453 *
454 * (The offsets for each block are stored in block_offsets[], indexed by the
455 * block number if the stride is 8. For cases where the guest's stride is less
456 * than 8, we can re-use the block_offsets array by multiplying the block
457 * number by (MAX_SMT_THREADS / stride) to reach the correct entry.)
458 */
459static inline u32 kvmppc_pack_vcpu_id(struct kvm *kvm, u32 id)
460{
461 const int block_offsets[MAX_SMT_THREADS] = {0, 4, 2, 6, 1, 5, 3, 7};
462 int stride = kvm->arch.emul_smt_mode;
463 int block = (id / KVM_MAX_VCPUS) * (MAX_SMT_THREADS / stride);
464 u32 packed_id;
465
466 if (WARN_ONCE(block >= MAX_SMT_THREADS, "VCPU ID too large to pack"))
467 return 0;
468 packed_id = (id % KVM_MAX_VCPUS) + block_offsets[block];
469 if (WARN_ONCE(packed_id >= KVM_MAX_VCPUS, "VCPU ID packing failed"))
470 return 0;
471 return packed_id;
472}
473
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]474#endif /* __ASM_KVM_BOOK3S_H__ */