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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / f71077a4d84bbe8c7b91b7db7c4ef815755ac5e3 / . / arch / powerpc / include / asm / kvm_book3s.h
blob: 91c9f937edcd169c05692270d42ed9edd3190e8b [file] [log] [blame]
Thomas Gleixnerd94d71c2019-05-29 07:12:40 -0700[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0-only */
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]2/*
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]3 *
4 * Copyright SUSE Linux Products GmbH 2009
5 *
6 * Authors: Alexander Graf <agraf@suse.de>
7 */
8
9#ifndef __ASM_KVM_BOOK3S_H__
10#define __ASM_KVM_BOOK3S_H__
11
12#include <linux/types.h>
13#include <linux/kvm_host.h>
Alexander Graf2191d652010-04-16 00:11:32 +0200[diff] [blame]14#include <asm/kvm_book3s_asm.h>
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]15
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]16struct kvmppc_bat {
Alexander Grafe15a1132009-11-30 03:02:02 +0000[diff] [blame]17 u64 raw;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]18 u32 bepi;
19 u32 bepi_mask;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]20 u32 brpn;
21 u8 wimg;
22 u8 pp;
Alexander Graf3ed9c6d2010-03-24 21:48:36 +0100[diff] [blame]23 bool vs : 1;
24 bool vp : 1;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]25};
26
27struct kvmppc_sid_map {
28 u64 guest_vsid;
29 u64 guest_esid;
30 u64 host_vsid;
Alexander Graf3ed9c6d2010-03-24 21:48:36 +0100[diff] [blame]31 bool valid : 1;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]32};
33
34#define SID_MAP_BITS 9
35#define SID_MAP_NUM (1 << SID_MAP_BITS)
36#define SID_MAP_MASK (SID_MAP_NUM - 1)
37
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]38#ifdef CONFIG_PPC_BOOK3S_64
39#define SID_CONTEXTS 1
40#else
41#define SID_CONTEXTS 128
42#define VSID_POOL_SIZE (SID_CONTEXTS * 16)
43#endif
44
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]45struct hpte_cache {
46 struct hlist_node list_pte;
47 struct hlist_node list_pte_long;
48 struct hlist_node list_vpte;
49 struct hlist_node list_vpte_long;
Paul Mackerrasa4a0f252013-09-20 14:52:44 +1000[diff] [blame]50#ifdef CONFIG_PPC_BOOK3S_64
51 struct hlist_node list_vpte_64k;
52#endif
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]53 struct rcu_head rcu_head;
Aneesh Kumar K.V5524a272012-09-10 02:52:50 +0000[diff] [blame]54 u64 host_vpn;
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]55 u64 pfn;
56 ulong slot;
57 struct kvmppc_pte pte;
Paul Mackerrasc9029c32013-09-20 14:52:45 +1000[diff] [blame]58 int pagesize;
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]59};
60
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]61/*
62 * Struct for a virtual core.
63 * Note: entry_exit_map combines a bitmap of threads that have entered
64 * in the bottom 8 bits and a bitmap of threads that have exited in the
65 * next 8 bits. This is so that we can atomically set the entry bit
66 * iff the exit map is 0 without taking a lock.
67 */
68struct kvmppc_vcore {
69 int n_runnable;
70 int num_threads;
71 int entry_exit_map;
72 int napping_threads;
73 int first_vcpuid;
74 u16 pcpu;
75 u16 last_cpu;
76 u8 vcore_state;
77 u8 in_guest;
Suraj Jitindar Singh7b5f8272016-08-02 14:03:20 +1000[diff] [blame]78 struct kvm_vcpu *runnable_threads[MAX_SMT_THREADS];
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]79 struct list_head preempt_list;
80 spinlock_t lock;
Davidlohr Buesoda4ad882020-04-23 22:48:37 -0700[diff] [blame]81 struct rcuwait wait;
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]82 spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
83 u64 stolen_tb;
84 u64 preempt_tb;
85 struct kvm_vcpu *runner;
86 struct kvm *kvm;
87 u64 tb_offset; /* guest timebase - host timebase */
Paul Mackerras57b8daa2018-04-20 22:51:11 +1000[diff] [blame]88 u64 tb_offset_applied; /* timebase offset currently in force */
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]89 ulong lpcr;
90 u32 arch_compat;
91 ulong pcr;
92 ulong dpdes; /* doorbell state (POWER8) */
Paul Mackerras88b02cf92016-09-15 13:42:52 +1000[diff] [blame]93 ulong vtb; /* virtual timebase */
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]94 ulong conferring_threads;
Suraj Jitindar Singh0cda69d2016-08-02 14:03:21 +1000[diff] [blame]95 unsigned int halt_poll_ns;
Paul Mackerras7aa15842018-04-20 19:53:22 +1000[diff] [blame]96 atomic_t online_count;
Suraj Jitindar Singhe64fb7e2016-08-02 14:03:19 +1000[diff] [blame]97};
98
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]99struct kvmppc_vcpu_book3s {
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]100 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]101 struct {
102 u64 esid;
103 u64 vsid;
104 } slb_shadow[64];
105 u8 slb_shadow_max;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]106 struct kvmppc_bat ibat[8];
107 struct kvmppc_bat dbat[8];
108 u64 hid[6];
Alexander Grafd6d549b2010-02-19 11:00:33 +0100[diff] [blame]109 u64 gqr[8];
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]110 u64 sdr1;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]111 u64 hior;
112 u64 msr_mask;
Paul Mackerras88b02cf92016-09-15 13:42:52 +1000[diff] [blame]113 u64 vtb;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]114#ifdef CONFIG_PPC_BOOK3S_32
115 u32 vsid_pool[VSID_POOL_SIZE];
Benjamin Herrenschmidtffe36492012-03-23 11:21:14 +1100[diff] [blame]116 u32 vsid_next;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]117#else
Benjamin Herrenschmidtffe36492012-03-23 11:21:14 +1100[diff] [blame]118 u64 proto_vsid_first;
119 u64 proto_vsid_max;
120 u64 proto_vsid_next;
Alexander Graf8b6db3b2010-08-15 08:04:24 +0200[diff] [blame]121#endif
122 int context_id[SID_CONTEXTS];
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]123
Alexander Graf1022fc32011-09-14 21:45:23 +0200[diff] [blame]124 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
125
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]126 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
127 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
128 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
129 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
Paul Mackerrasa4a0f252013-09-20 14:52:44 +1000[diff] [blame]130#ifdef CONFIG_PPC_BOOK3S_64
131 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
132#endif
Paul Mackerrasc4befc52011-06-29 00:17:33 +0000[diff] [blame]133 int hpte_cache_count;
134 spinlock_t mmu_lock;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]135};
136
Paul Mackerrasc9029c32013-09-20 14:52:45 +1000[diff] [blame]137#define VSID_REAL 0x07ffffffffc00000ULL
138#define VSID_BAT 0x07ffffffffb00000ULL
139#define VSID_64K 0x0800000000000000ULL
Paul Mackerras0f296822013-06-22 17:16:32 +1000[diff] [blame]140#define VSID_1T 0x1000000000000000ULL
Alexander Graff7bc74e2010-04-20 02:49:48 +0200[diff] [blame]141#define VSID_REAL_DR 0x2000000000000000ULL
142#define VSID_REAL_IR 0x4000000000000000ULL
Alexander Graf5a1b4192010-03-24 21:48:35 +0100[diff] [blame]143#define VSID_PR 0x8000000000000000ULL
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]144
Alexander Grafaf7b4d12010-04-20 02:49:46 +0200[diff] [blame]145extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]146extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
Alexander Grafaf7b4d12010-04-20 02:49:46 +0200[diff] [blame]147extern 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]148extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
149extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
150extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]151extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
Paul Mackerras93b159b2013-09-20 14:52:51 +1000[diff] [blame]152extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
153 bool iswrite);
154extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]155extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
Paul Mackerras0f296822013-06-22 17:16:32 +1000[diff] [blame]156extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]157extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
Tianjia Zhang8c99d342020-04-27 12:35:11 +0800[diff] [blame]158extern int kvmppc_book3s_hv_page_fault(struct kvm_vcpu *vcpu,
159 unsigned long addr, unsigned long status);
Paul Mackerras697d3892011-12-12 12:36:37 +0000[diff] [blame]160extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
161 unsigned long slb_v, unsigned long valid);
Tianjia Zhang8c99d342020-04-27 12:35:11 +0800[diff] [blame]162extern int kvmppc_hv_emulate_mmio(struct kvm_vcpu *vcpu,
Paul Mackerras5a319352017-01-30 21:21:46 +1100[diff] [blame]163 unsigned long gpa, gva_t ea, int is_store);
Alexander Graffef093be2010-06-30 15:18:46 +0200[diff] [blame]164
165extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
166extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
Paul Mackerrasd78bca72013-09-20 14:52:52 +1000[diff] [blame]167extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
Alexander Graffef093be2010-06-30 15:18:46 +0200[diff] [blame]168extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
169extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
170extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
171extern int kvmppc_mmu_hpte_sysinit(void);
172extern void kvmppc_mmu_hpte_sysexit(void);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]173extern int kvmppc_mmu_hv_init(void);
Paul Mackerrasae2113a2014-06-02 11:03:00 +1000[diff] [blame]174extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
Alexander Graffef093be2010-06-30 15:18:46 +0200[diff] [blame]175
Tianjia Zhang8c99d342020-04-27 12:35:11 +0800[diff] [blame]176extern int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
Paul Mackerras5a319352017-01-30 21:21:46 +1100[diff] [blame]177 unsigned long ea, unsigned long dsisr);
Suraj Jitindar Singh6ff887b2018-12-14 16:29:09 +1100[diff] [blame]178extern unsigned long __kvmhv_copy_tofrom_guest_radix(int lpid, int pid,
179 gva_t eaddr, void *to, void *from,
180 unsigned long n);
Suraj Jitindar Singhd7b45612018-12-14 16:29:05 +1100[diff] [blame]181extern long kvmhv_copy_from_guest_radix(struct kvm_vcpu *vcpu, gva_t eaddr,
182 void *to, unsigned long n);
183extern long kvmhv_copy_to_guest_radix(struct kvm_vcpu *vcpu, gva_t eaddr,
184 void *from, unsigned long n);
Suraj Jitindar Singhfd10be22018-10-08 16:31:07 +1100[diff] [blame]185extern int kvmppc_mmu_walk_radix_tree(struct kvm_vcpu *vcpu, gva_t eaddr,
186 struct kvmppc_pte *gpte, u64 root,
187 u64 *pte_ret_p);
Suraj Jitindar Singh9811c782018-10-08 16:31:00 +1100[diff] [blame]188extern int kvmppc_mmu_radix_translate_table(struct kvm_vcpu *vcpu, gva_t eaddr,
189 struct kvmppc_pte *gpte, u64 table,
190 int table_index, u64 *pte_ret_p);
Paul Mackerras9e04ba62017-01-30 21:21:44 +1100[diff] [blame]191extern int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
192 struct kvmppc_pte *gpte, bool data, bool iswrite);
Suraj Jitindar Singh90165d32018-12-21 14:28:42 +1100[diff] [blame]193extern void kvmppc_radix_tlbie_page(struct kvm *kvm, unsigned long addr,
194 unsigned int pshift, unsigned int lpid);
Suraj Jitindar Singh8cf531e2018-10-08 16:31:08 +1100[diff] [blame]195extern void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa,
Paul Mackerrasc43c3a82018-12-12 15:16:48 +1100[diff] [blame]196 unsigned int shift,
197 const struct kvm_memory_slot *memslot,
Suraj Jitindar Singh8cf531e2018-10-08 16:31:08 +1100[diff] [blame]198 unsigned int lpid);
Aneesh Kumar K.V6cdf3032020-05-05 12:47:18 +0530[diff] [blame]199extern bool kvmppc_hv_handle_set_rc(struct kvm *kvm, bool nested,
Suraj Jitindar Singhfd10be22018-10-08 16:31:07 +1100[diff] [blame]200 bool writing, unsigned long gpa,
201 unsigned int lpid);
202extern int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu,
203 unsigned long gpa,
204 struct kvm_memory_slot *memslot,
205 bool writing, bool kvm_ro,
206 pte_t *inserted_pte, unsigned int *levelp);
Paul Mackerras8cf4ecc2017-01-30 21:21:53 +1100[diff] [blame]207extern int kvmppc_init_vm_radix(struct kvm *kvm);
Paul Mackerras5a319352017-01-30 21:21:46 +1100[diff] [blame]208extern void kvmppc_free_radix(struct kvm *kvm);
Suraj Jitindar Singhfd10be22018-10-08 16:31:07 +1100[diff] [blame]209extern void kvmppc_free_pgtable_radix(struct kvm *kvm, pgd_t *pgd,
210 unsigned int lpid);
Paul Mackerras5a319352017-01-30 21:21:46 +1100[diff] [blame]211extern int kvmppc_radix_init(void);
212extern void kvmppc_radix_exit(void);
Nicholas Piggin32b48bf2021-05-05 22:15:09 +1000[diff] [blame]213extern void kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
Sean Christophersonb1c53562021-04-01 17:56:53 -0700[diff] [blame]214 unsigned long gfn);
215extern bool kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
216 unsigned long gfn);
217extern bool kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
218 unsigned long gfn);
Paul Mackerras8f7b79b2017-01-30 21:21:48 +1100[diff] [blame]219extern long kvmppc_hv_get_dirty_log_radix(struct kvm *kvm,
220 struct kvm_memory_slot *memslot, unsigned long *map);
Paul Mackerras5af3e9d2018-12-12 15:17:17 +1100[diff] [blame]221extern void kvmppc_radix_flush_memslot(struct kvm *kvm,
222 const struct kvm_memory_slot *memslot);
Paul Mackerras8cf4ecc2017-01-30 21:21:53 +1100[diff] [blame]223extern int kvmhv_get_rmmu_info(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
Paul Mackerras9e04ba62017-01-30 21:21:44 +1100[diff] [blame]224
Alexander Graf35c4a732014-06-20 13:58:16 +0200[diff] [blame]225/* XXX remove this export when load_last_inst() is generic */
Alexander Graf5467a972010-02-19 11:00:38 +0100[diff] [blame]226extern 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]227extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
Benjamin Herrenschmidtbc5ad3f2013-04-17 20:30:26 +0000[diff] [blame]228extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
229 unsigned int vec);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]230extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
Simon Guo533082a2018-05-23 15:02:00 +0800[diff] [blame]231extern void kvmppc_trigger_fac_interrupt(struct kvm_vcpu *vcpu, ulong fac);
Alexander Grafe15a1132009-11-30 03:02:02 +0000[diff] [blame]232extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
233 bool upper, u32 val);
Alexander Grafaba3bd72010-02-19 11:00:39 +0100[diff] [blame]234extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
Tianjia Zhang8c99d342020-04-27 12:35:11 +0800[diff] [blame]235extern int kvmppc_emulate_paired_single(struct kvm_vcpu *vcpu);
Dan Williamsba049e92016-01-15 16:56:11 -0800[diff] [blame]236extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa,
237 bool writing, bool *writable);
Paul Mackerras342d3db2011-12-12 12:38:05 +0000[diff] [blame]238extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
239 unsigned long *rmap, long pte_index, int realmode);
Paul Mackerrasc43c3a82018-12-12 15:16:48 +1100[diff] [blame]240extern void kvmppc_update_dirty_map(const struct kvm_memory_slot *memslot,
Paul Mackerrase641a312017-10-26 16:39:19 +1100[diff] [blame]241 unsigned long gfn, unsigned long psize);
Alexander Graf6f22bd32014-06-11 10:16:06 +0200[diff] [blame]242extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
Paul Mackerras342d3db2011-12-12 12:38:05 +0000[diff] [blame]243 unsigned long pte_index);
Alexander Graf6f22bd32014-06-11 10:16:06 +0200[diff] [blame]244void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
Paul Mackerras55514892011-12-15 02:02:47 +0000[diff] [blame]245 unsigned long pte_index);
Paul Mackerras93e60242011-12-12 12:28:55 +0000[diff] [blame]246extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
247 unsigned long *nb_ret);
Paul Mackerrasc35635e2013-04-18 19:51:04 +0000[diff] [blame]248extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
249 unsigned long gpa, bool dirty);
Paul Mackerras7ed661b2012-11-13 18:31:32 +0000[diff] [blame]250extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
251 long pte_index, unsigned long pteh, unsigned long ptel,
252 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
Paul Mackerras6b445ad2012-11-19 22:55:44 +0000[diff] [blame]253extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
254 unsigned long pte_index, unsigned long avpn,
255 unsigned long *hpret);
Paul Mackerras8f7b79b2017-01-30 21:21:48 +1100[diff] [blame]256extern long kvmppc_hv_get_dirty_log_hpt(struct kvm *kvm,
Paul Mackerrasdfe49db2012-09-11 13:28:18 +0000[diff] [blame]257 struct kvm_memory_slot *memslot, unsigned long *map);
Paul Mackerras8f7b79b2017-01-30 21:21:48 +1100[diff] [blame]258extern void kvmppc_harvest_vpa_dirty(struct kvmppc_vpa *vpa,
259 struct kvm_memory_slot *memslot,
260 unsigned long *map);
Nicholas Piggin67145ef2021-04-12 11:48:36 +1000[diff] [blame]261extern unsigned long kvmppc_filter_lpcr_hv(struct kvm *kvm,
262 unsigned long lpcr);
Paul Mackerrasa0144e22013-09-20 14:52:38 +1000[diff] [blame]263extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
264 unsigned long mask);
Alexander Graf8e6afa32014-07-31 10:21:59 +0200[diff] [blame]265extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]266
Paul Mackerras4bb3c7a2018-03-21 21:32:01 +1100[diff] [blame]267extern int kvmhv_p9_tm_emulation_early(struct kvm_vcpu *vcpu);
268extern int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu);
269extern void kvmhv_emulate_tm_rollback(struct kvm_vcpu *vcpu);
270
Paul Mackerras02143942011-07-23 17:41:44 +1000[diff] [blame]271extern void kvmppc_entry_trampoline(void);
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]272extern void kvmppc_hv_entry_trampoline(void);
Alexander Grafca7f4202010-03-24 21:48:28 +0100[diff] [blame]273extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
274extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
Alexander Graf0254f0742011-08-08 17:21:15 +0200[diff] [blame]275extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
Paul Mackerras699a0ea2014-06-02 11:02:59 +1000[diff] [blame]276extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
Paul Mackerrasae2113a2014-06-02 11:03:00 +1000[diff] [blame]277extern int kvmppc_hcall_impl_pr(unsigned long cmd);
278extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
Alexander Graf07ae5382018-01-31 22:24:58 +0100[diff] [blame]279extern void kvmppc_copy_to_svcpu(struct kvm_vcpu *vcpu);
280extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu);
Simon Guo8d2e2fc2018-05-23 15:01:58 +0800[diff] [blame]281
Cédric Le Goaterce275172021-01-04 15:32:03 +0100[diff] [blame]282long kvmppc_read_intr(void);
283void kvmppc_bad_interrupt(struct pt_regs *regs);
284void kvmhv_p9_set_lpcr(struct kvm_split_mode *sip);
285void kvmhv_p9_restore_lpcr(struct kvm_split_mode *sip);
286void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr);
287void kvmppc_inject_interrupt_hv(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags);
288
Simon Guo8d2e2fc2018-05-23 15:01:58 +0800[diff] [blame]289#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
290void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu);
291void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu);
Simon Guoe32c53d2018-05-23 15:02:04 +0800[diff] [blame]292void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu);
Simon Guo57063402018-05-23 15:02:01 +0800[diff] [blame]293void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu);
Simon Guo8d2e2fc2018-05-23 15:01:58 +0800[diff] [blame]294#else
295static inline void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu) {}
296static inline void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu) {}
Simon Guoe32c53d2018-05-23 15:02:04 +0800[diff] [blame]297static inline void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu) {}
Simon Guo57063402018-05-23 15:02:01 +0800[diff] [blame]298static inline void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu) {}
Simon Guo8d2e2fc2018-05-23 15:01:58 +0800[diff] [blame]299#endif
300
Paul Mackerras8e3f5fc2018-10-08 16:31:03 +1100[diff] [blame]301long kvmhv_nested_init(void);
302void kvmhv_nested_exit(void);
303void kvmhv_vm_nested_init(struct kvm *kvm);
304long kvmhv_set_partition_table(struct kvm_vcpu *vcpu);
Suraj Jitindar Singh6ff887b2018-12-14 16:29:09 +1100[diff] [blame]305long kvmhv_copy_tofrom_guest_nested(struct kvm_vcpu *vcpu);
Paul Mackerras8e3f5fc2018-10-08 16:31:03 +1100[diff] [blame]306void kvmhv_set_ptbl_entry(unsigned int lpid, u64 dw0, u64 dw1);
307void kvmhv_release_all_nested(struct kvm *kvm);
Paul Mackerras360cae32018-10-08 16:31:04 +1100[diff] [blame]308long kvmhv_enter_nested_guest(struct kvm_vcpu *vcpu);
Suraj Jitindar Singhe3b6b462018-10-08 16:31:09 +1100[diff] [blame]309long kvmhv_do_nested_tlbie(struct kvm_vcpu *vcpu);
Bharata B Rao53324b52021-06-21 14:20:01 +0530[diff] [blame]310long do_h_rpt_invalidate_pat(struct kvm_vcpu *vcpu, unsigned long lpid,
311 unsigned long type, unsigned long pg_sizes,
312 unsigned long start, unsigned long end);
Tianjia Zhang8c99d342020-04-27 12:35:11 +0800[diff] [blame]313int kvmhv_run_single_vcpu(struct kvm_vcpu *vcpu,
Paul Mackerras360cae32018-10-08 16:31:04 +1100[diff] [blame]314 u64 time_limit, unsigned long lpcr);
315void kvmhv_save_hv_regs(struct kvm_vcpu *vcpu, struct hv_guest_state *hr);
316void kvmhv_restore_hv_return_state(struct kvm_vcpu *vcpu,
317 struct hv_guest_state *hr);
Tianjia Zhang8c99d342020-04-27 12:35:11 +0800[diff] [blame]318long int kvmhv_nested_page_fault(struct kvm_vcpu *vcpu);
Paul Mackerras8e3f5fc2018-10-08 16:31:03 +1100[diff] [blame]319
Simon Guo7284ca82018-05-23 15:02:07 +0800[diff] [blame]320void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac);
321
Suresh Warrier644abbb2016-08-19 15:35:54 +1000[diff] [blame]322extern int kvm_irq_bypass;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]323
324static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
325{
Paul Mackerras3ff95502013-09-20 14:52:49 +1000[diff] [blame]326 return vcpu->arch.book3s;
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]327}
328
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]329/* Also add subarch specific defines */
330
331#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
332#include <asm/kvm_book3s_32.h>
333#endif
334#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
335#include <asm/kvm_book3s_64.h>
336#endif
337
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]338static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
339{
Simon Guo1143a702018-05-07 14:20:07 +0800[diff] [blame]340 vcpu->arch.regs.gpr[num] = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]341}
342
343static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
344{
Simon Guo1143a702018-05-07 14:20:07 +0800[diff] [blame]345 return vcpu->arch.regs.gpr[num];
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]346}
347
348static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
349{
Paul Mackerrasfd0944b2018-10-08 16:30:58 +1100[diff] [blame]350 vcpu->arch.regs.ccr = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]351}
352
353static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
354{
Paul Mackerrasfd0944b2018-10-08 16:30:58 +1100[diff] [blame]355 return vcpu->arch.regs.ccr;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]356}
357
Sam bobroffc63517c2015-05-27 09:56:57 +1000[diff] [blame]358static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]359{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]360 vcpu->arch.regs.xer = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]361}
362
Sam bobroffc63517c2015-05-27 09:56:57 +1000[diff] [blame]363static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]364{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]365 return vcpu->arch.regs.xer;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]366}
367
368static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
369{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]370 vcpu->arch.regs.ctr = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]371}
372
373static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
374{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]375 return vcpu->arch.regs.ctr;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]376}
377
378static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
379{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]380 vcpu->arch.regs.link = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]381}
382
383static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
384{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]385 return vcpu->arch.regs.link;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]386}
387
388static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
389{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]390 vcpu->arch.regs.nip = val;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]391}
392
393static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
394{
Simon Guo173c5202018-05-07 14:20:08 +0800[diff] [blame]395 return vcpu->arch.regs.nip;
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]396}
397
Alexander Graf5deb8e72014-04-24 13:46:24 +0200[diff] [blame]398static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
Cédric Le Goater73601772014-01-09 11:51:16 +0100[diff] [blame]399static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]400{
Alexander Graf5deb8e72014-04-24 13:46:24 +0200[diff] [blame]401 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
Cédric Le Goater73601772014-01-09 11:51:16 +0100[diff] [blame]402}
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]403
Paul Mackerrasde56a942011-06-29 00:21:34 +0000[diff] [blame]404static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
405{
406 return vcpu->arch.fault_dar;
407}
408
Nicholas Piggin3c1a43222021-11-23 19:52:00 +1000[diff] [blame]409/* Expiry time of vcpu DEC relative to host TB */
410static inline u64 kvmppc_dec_expires_host_tb(struct kvm_vcpu *vcpu)
411{
412 return vcpu->arch.dec_expires - vcpu->arch.vcore->tb_offset;
413}
414
Greg Kurze59d24e2014-02-06 17:36:56 +0100[diff] [blame]415static inline bool is_kvmppc_resume_guest(int r)
416{
417 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
418}
419
Alexander Grafc12fb432014-06-20 14:43:36 +0200[diff] [blame]420static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
421static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
422{
423 /* Only PR KVM supports the magic page */
424 return !is_kvmppc_hv_enabled(vcpu->kvm);
425}
426
David Gibson99342cf82015-02-05 11:53:25 +1100[diff] [blame]427extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu);
428extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
429
Alexander Grafad0a0482010-03-24 21:48:30 +0100[diff] [blame]430/* Magic register values loaded into r3 and r4 before the 'sc' assembly
431 * instruction for the OSI hypercalls */
432#define OSI_SC_MAGIC_R3 0x113724FA
433#define OSI_SC_MAGIC_R4 0x77810F9B
434
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]435#define INS_DCBZ 0x7c0007ec
Bharat Bhushan8c32a2e2013-03-20 20:24:58 +0000[diff] [blame]436/* TO = 31 for unconditional trap */
437#define INS_TW 0x7fe00008
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]438
Alexander Grafc01e3f62014-07-11 02:58:58 +0200[diff] [blame]439#define SPLIT_HACK_MASK 0xff000000
440#define SPLIT_HACK_OFFS 0xfb000000
441
Sam Bobroff1e175d22018-07-25 16:12:02 +1000[diff] [blame]442/*
Juergen Grossa1c42dd2021-09-13 15:57:44 +0200[diff] [blame]443 * This packs a VCPU ID from the [0..KVM_MAX_VCPU_IDS) space down to the
Sam Bobroff1e175d22018-07-25 16:12:02 +1000[diff] [blame]444 * [0..KVM_MAX_VCPUS) space, using knowledge of the guest's core stride
445 * (but not its actual threading mode, which is not available) to avoid
446 * collisions.
447 *
448 * The implementation leaves VCPU IDs from the range [0..KVM_MAX_VCPUS) (block
449 * 0) unchanged: if the guest is filling each VCORE completely then it will be
450 * using consecutive IDs and it will fill the space without any packing.
451 *
452 * For higher VCPU IDs, the packed ID is based on the VCPU ID modulo
453 * KVM_MAX_VCPUS (effectively masking off the top bits) and then an offset is
454 * added to avoid collisions.
455 *
456 * VCPU IDs in the range [KVM_MAX_VCPUS..(KVM_MAX_VCPUS*2)) (block 1) are only
457 * possible if the guest is leaving at least 1/2 of each VCORE empty, so IDs
458 * can be safely packed into the second half of each VCORE by adding an offset
459 * of (stride / 2).
460 *
461 * Similarly, if VCPU IDs in the range [(KVM_MAX_VCPUS*2)..(KVM_MAX_VCPUS*4))
462 * (blocks 2 and 3) are seen, the guest must be leaving at least 3/4 of each
463 * VCORE empty so packed IDs can be offset by (stride / 4) and (stride * 3 / 4).
464 *
465 * Finally, VCPU IDs from blocks 5..7 will only be seen if the guest is using a
466 * stride of 8 and 1 thread per core so the remaining offsets of 1, 5, 3 and 7
467 * must be free to use.
468 *
469 * (The offsets for each block are stored in block_offsets[], indexed by the
470 * block number if the stride is 8. For cases where the guest's stride is less
471 * than 8, we can re-use the block_offsets array by multiplying the block
472 * number by (MAX_SMT_THREADS / stride) to reach the correct entry.)
473 */
474static inline u32 kvmppc_pack_vcpu_id(struct kvm *kvm, u32 id)
475{
476 const int block_offsets[MAX_SMT_THREADS] = {0, 4, 2, 6, 1, 5, 3, 7};
477 int stride = kvm->arch.emul_smt_mode;
478 int block = (id / KVM_MAX_VCPUS) * (MAX_SMT_THREADS / stride);
479 u32 packed_id;
480
481 if (WARN_ONCE(block >= MAX_SMT_THREADS, "VCPU ID too large to pack"))
482 return 0;
483 packed_id = (id % KVM_MAX_VCPUS) + block_offsets[block];
484 if (WARN_ONCE(packed_id >= KVM_MAX_VCPUS, "VCPU ID packing failed"))
485 return 0;
486 return packed_id;
487}
488
Alexander Graf4e3420252009-10-30 05:47:05 +0000[diff] [blame]489#endif /* __ASM_KVM_BOOK3S_H__ */