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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 *
4 * Copyright SUSE Linux Products GmbH 2009
5 *
6 * Authors: Alexander Graf <agraf@suse.de>
7 */
8
9#ifndef __ASM_KVM_BOOK3S_ASM_H__
10#define __ASM_KVM_BOOK3S_ASM_H__
11
12/* XICS ICP register offsets */
13#define XICS_XIRR 4
14#define XICS_MFRR 0xc
15#define XICS_IPI 2 /* interrupt source # for IPIs */
16
17/* Maximum number of threads per physical core */
18#define MAX_SMT_THREADS 8
19
20/* Maximum number of subcores per physical core */
21#define MAX_SUBCORES 4
22
23#ifdef __ASSEMBLY__
24
25#ifdef CONFIG_KVM_BOOK3S_HANDLER
26
27#include <asm/kvm_asm.h>
28
29.macro DO_KVM intno
30 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
31 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
32 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
33 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
34 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
35 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
36 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
37 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
38 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
39 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
40 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
41 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
42 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
43 (\intno == BOOK3S_INTERRUPT_TRACE) || \
44 (\intno == BOOK3S_INTERRUPT_PERFMON) || \
45 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
46 (\intno == BOOK3S_INTERRUPT_VSX)
47
48 b kvmppc_trampoline_\intno
49kvmppc_resume_\intno:
50
51 .endif
52.endm
53
54#else
55
56.macro DO_KVM intno
57.endm
58
59#endif /* CONFIG_KVM_BOOK3S_HANDLER */
60
61#else /*__ASSEMBLY__ */
62
63struct kvmppc_vcore;
64
65/* Struct used for coordinating micro-threading (split-core) mode changes */
66struct kvm_split_mode {
67 unsigned long rpr;
68 unsigned long pmmar;
69 unsigned long ldbar;
70 u8 subcore_size;
71 u8 do_nap;
72 u8 napped[MAX_SMT_THREADS];
73 struct kvmppc_vcore *vc[MAX_SUBCORES];
74};
75
76/*
77 * This struct goes in the PACA on 64-bit processors. It is used
78 * to store host state that needs to be saved when we enter a guest
79 * and restored when we exit, but isn't specific to any particular
80 * guest or vcpu. It also has some scratch fields used by the guest
81 * exit code.
82 */
83struct kvmppc_host_state {
84 ulong host_r1;
85 ulong host_r2;
86 ulong host_msr;
87 ulong vmhandler;
88 ulong scratch0;
89 ulong scratch1;
90 ulong scratch2;
91 u8 in_guest;
92 u8 restore_hid5;
93 u8 napping;
94
95#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
96 u8 hwthread_req;
97 u8 hwthread_state;
98 u8 host_ipi;
99 u8 ptid; /* thread number within subcore when split */
100 u8 fake_suspend;
101 struct kvm_vcpu *kvm_vcpu;
102 struct kvmppc_vcore *kvm_vcore;
103 void __iomem *xics_phys;
104 void __iomem *xive_tima_phys;
105 void __iomem *xive_tima_virt;
106 u32 saved_xirr;
107 u64 dabr;
108 u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */
109 u32 host_pmc[8];
110 u64 host_purr;
111 u64 host_spurr;
112 u64 host_dscr;
113 u64 dec_expires;
114 struct kvm_split_mode *kvm_split_mode;
115#endif
116#ifdef CONFIG_PPC_BOOK3S_64
117 u64 cfar;
118 u64 ppr;
119 u64 host_fscr;
120#endif
121};
122
123struct kvmppc_book3s_shadow_vcpu {
124 bool in_use;
125 ulong gpr[14];
126 u32 cr;
127 ulong xer;
128 ulong ctr;
129 ulong lr;
130 ulong pc;
131
132 ulong shadow_srr1;
133 ulong fault_dar;
134 u32 fault_dsisr;
135 u32 last_inst;
136
137#ifdef CONFIG_PPC_BOOK3S_32
138 u32 sr[16]; /* Guest SRs */
139
140 struct kvmppc_host_state hstate;
141#endif
142
143#ifdef CONFIG_PPC_BOOK3S_64
144 u8 slb_max; /* highest used guest slb entry */
145 struct {
146 u64 esid;
147 u64 vsid;
148 } slb[64]; /* guest SLB */
149 u64 shadow_fscr;
150#endif
151};
152
153#endif /*__ASSEMBLY__ */
154
155/* Values for kvm_state */
156#define KVM_HWTHREAD_IN_KERNEL 0
157#define KVM_HWTHREAD_IN_IDLE 1
158#define KVM_HWTHREAD_IN_KVM 2
159
160#endif /* __ASM_KVM_BOOK3S_ASM_H__ */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 *
4 * Copyright SUSE Linux Products GmbH 2009
5 *
6 * Authors: Alexander Graf <agraf@suse.de>
7 */
8
9#ifndef __ASM_KVM_BOOK3S_ASM_H__
10#define __ASM_KVM_BOOK3S_ASM_H__
11
12/* XICS ICP register offsets */
13#define XICS_XIRR 4
14#define XICS_MFRR 0xc
15#define XICS_IPI 2 /* interrupt source # for IPIs */
16
17/* LPIDs we support with this build -- runtime limit may be lower */
18#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
19
20/* Maximum number of threads per physical core */
21#define MAX_SMT_THREADS 8
22
23/* Maximum number of subcores per physical core */
24#define MAX_SUBCORES 4
25
26#ifdef __ASSEMBLY__
27
28#ifdef CONFIG_KVM_BOOK3S_HANDLER
29
30#include <asm/kvm_asm.h>
31
32.macro DO_KVM intno
33 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
34 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
35 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
36 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
37 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
38 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
39 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
40 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
41 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
42 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
43 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
44 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
45 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
46 (\intno == BOOK3S_INTERRUPT_TRACE) || \
47 (\intno == BOOK3S_INTERRUPT_PERFMON) || \
48 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
49 (\intno == BOOK3S_INTERRUPT_VSX)
50
51 b kvmppc_trampoline_\intno
52kvmppc_resume_\intno:
53
54 .endif
55.endm
56
57#else
58
59.macro DO_KVM intno
60.endm
61
62#endif /* CONFIG_KVM_BOOK3S_HANDLER */
63
64#else /*__ASSEMBLY__ */
65
66struct kvmppc_vcore;
67
68/* Struct used for coordinating micro-threading (split-core) mode changes */
69struct kvm_split_mode {
70 unsigned long rpr;
71 unsigned long pmmar;
72 unsigned long ldbar;
73 u8 subcore_size;
74 u8 do_nap;
75 u8 napped[MAX_SMT_THREADS];
76 struct kvmppc_vcore *vc[MAX_SUBCORES];
77 /* Bits for changing lpcr on P9 */
78 unsigned long lpcr_req;
79 unsigned long lpidr_req;
80 unsigned long host_lpcr;
81 u32 do_set;
82 u32 do_restore;
83 union {
84 u32 allphases;
85 u8 phase[4];
86 } lpcr_sync;
87};
88
89/*
90 * This struct goes in the PACA on 64-bit processors. It is used
91 * to store host state that needs to be saved when we enter a guest
92 * and restored when we exit, but isn't specific to any particular
93 * guest or vcpu. It also has some scratch fields used by the guest
94 * exit code.
95 */
96struct kvmppc_host_state {
97 ulong host_r1;
98 ulong host_r2;
99 ulong host_msr;
100 ulong vmhandler;
101 ulong scratch0;
102 ulong scratch1;
103 ulong scratch2;
104 u8 in_guest;
105 u8 restore_hid5;
106 u8 napping;
107
108#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
109 u8 hwthread_req;
110 u8 hwthread_state;
111 u8 host_ipi;
112 u8 ptid; /* thread number within subcore when split */
113 u8 tid; /* thread number within whole core */
114 u8 fake_suspend;
115 struct kvm_vcpu *kvm_vcpu;
116 struct kvmppc_vcore *kvm_vcore;
117 void __iomem *xics_phys;
118 void __iomem *xive_tima_phys;
119 void __iomem *xive_tima_virt;
120 u32 saved_xirr;
121 u64 dabr;
122 u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */
123 u32 host_pmc[8];
124 u64 host_purr;
125 u64 host_spurr;
126 u64 host_dscr;
127 u64 dec_expires;
128 struct kvm_split_mode *kvm_split_mode;
129#endif
130#ifdef CONFIG_PPC_BOOK3S_64
131 u64 cfar;
132 u64 ppr;
133 u64 host_fscr;
134#endif
135};
136
137struct kvmppc_book3s_shadow_vcpu {
138 bool in_use;
139 ulong gpr[14];
140 u32 cr;
141 ulong xer;
142 ulong ctr;
143 ulong lr;
144 ulong pc;
145
146 ulong shadow_srr1;
147 ulong fault_dar;
148 u32 fault_dsisr;
149 u32 last_inst;
150
151#ifdef CONFIG_PPC_BOOK3S_32
152 u32 sr[16]; /* Guest SRs */
153
154 struct kvmppc_host_state hstate;
155#endif
156
157#ifdef CONFIG_PPC_BOOK3S_64
158 u8 slb_max; /* highest used guest slb entry */
159 struct {
160 u64 esid;
161 u64 vsid;
162 } slb[64]; /* guest SLB */
163 u64 shadow_fscr;
164#endif
165};
166
167#endif /*__ASSEMBLY__ */
168
169/* Values for kvm_state */
170#define KVM_HWTHREAD_IN_KERNEL 0
171#define KVM_HWTHREAD_IN_IDLE 1
172#define KVM_HWTHREAD_IN_KVM 2
173
174#endif /* __ASM_KVM_BOOK3S_ASM_H__ */