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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_ASM_H__
21#define __ASM_KVM_BOOK3S_ASM_H__
22
23/* XICS ICP register offsets */
24#define XICS_XIRR 4
25#define XICS_MFRR 0xc
26#define XICS_IPI 2 /* interrupt source # for IPIs */
27
28/* Maximum number of threads per physical core */
29#define MAX_SMT_THREADS 8
30
31/* Maximum number of subcores per physical core */
32#define MAX_SUBCORES 4
33
34#ifdef __ASSEMBLY__
35
36#ifdef CONFIG_KVM_BOOK3S_HANDLER
37
38#include <asm/kvm_asm.h>
39
40.macro DO_KVM intno
41 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
42 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
43 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
44 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
45 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
46 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
47 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
48 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
49 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
50 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
51 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
52 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
53 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
54 (\intno == BOOK3S_INTERRUPT_TRACE) || \
55 (\intno == BOOK3S_INTERRUPT_PERFMON) || \
56 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
57 (\intno == BOOK3S_INTERRUPT_VSX)
58
59 b kvmppc_trampoline_\intno
60kvmppc_resume_\intno:
61
62 .endif
63.endm
64
65#else
66
67.macro DO_KVM intno
68.endm
69
70#endif /* CONFIG_KVM_BOOK3S_HANDLER */
71
72#else /*__ASSEMBLY__ */
73
74struct kvmppc_vcore;
75
76/* Struct used for coordinating micro-threading (split-core) mode changes */
77struct kvm_split_mode {
78 unsigned long rpr;
79 unsigned long pmmar;
80 unsigned long ldbar;
81 u8 subcore_size;
82 u8 do_nap;
83 u8 napped[MAX_SMT_THREADS];
84 struct kvmppc_vcore *master_vcs[MAX_SUBCORES];
85};
86
87/*
88 * This struct goes in the PACA on 64-bit processors. It is used
89 * to store host state that needs to be saved when we enter a guest
90 * and restored when we exit, but isn't specific to any particular
91 * guest or vcpu. It also has some scratch fields used by the guest
92 * exit code.
93 */
94struct kvmppc_host_state {
95 ulong host_r1;
96 ulong host_r2;
97 ulong host_msr;
98 ulong vmhandler;
99 ulong scratch0;
100 ulong scratch1;
101 ulong scratch2;
102 u8 in_guest;
103 u8 restore_hid5;
104 u8 napping;
105
106#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
107 u8 hwthread_req;
108 u8 hwthread_state;
109 u8 host_ipi;
110 u8 ptid;
111 struct kvm_vcpu *kvm_vcpu;
112 struct kvmppc_vcore *kvm_vcore;
113 unsigned long xics_phys;
114 u32 saved_xirr;
115 u64 dabr;
116 u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */
117 u32 host_pmc[8];
118 u64 host_purr;
119 u64 host_spurr;
120 u64 host_dscr;
121 u64 dec_expires;
122 struct kvm_split_mode *kvm_split_mode;
123#endif
124#ifdef CONFIG_PPC_BOOK3S_64
125 u64 cfar;
126 u64 ppr;
127 u64 host_fscr;
128#endif
129};
130
131struct kvmppc_book3s_shadow_vcpu {
132 bool in_use;
133 ulong gpr[14];
134 u32 cr;
135 ulong xer;
136 ulong ctr;
137 ulong lr;
138 ulong pc;
139
140 ulong shadow_srr1;
141 ulong fault_dar;
142 u32 fault_dsisr;
143 u32 last_inst;
144
145#ifdef CONFIG_PPC_BOOK3S_32
146 u32 sr[16]; /* Guest SRs */
147
148 struct kvmppc_host_state hstate;
149#endif
150
151#ifdef CONFIG_PPC_BOOK3S_64
152 u8 slb_max; /* highest used guest slb entry */
153 struct {
154 u64 esid;
155 u64 vsid;
156 } slb[64]; /* guest SLB */
157 u64 shadow_fscr;
158#endif
159};
160
161#endif /*__ASSEMBLY__ */
162
163/* Values for kvm_state */
164#define KVM_HWTHREAD_IN_KERNEL 0
165#define KVM_HWTHREAD_IN_NAP 1
166#define KVM_HWTHREAD_IN_KVM 2
167
168#endif /* __ASM_KVM_BOOK3S_ASM_H__ */
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_ASM_H__
21#define __ASM_KVM_BOOK3S_ASM_H__
22
23/* XICS ICP register offsets */
24#define XICS_XIRR 4
25#define XICS_MFRR 0xc
26#define XICS_IPI 2 /* interrupt source # for IPIs */
27
28/* Maximum number of threads per physical core */
29#define MAX_SMT_THREADS 8
30
31/* Maximum number of subcores per physical core */
32#define MAX_SUBCORES 4
33
34#ifdef __ASSEMBLY__
35
36#ifdef CONFIG_KVM_BOOK3S_HANDLER
37
38#include <asm/kvm_asm.h>
39
40.macro DO_KVM intno
41 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
42 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
43 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
44 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
45 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
46 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
47 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
48 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
49 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
50 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
51 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
52 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
53 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
54 (\intno == BOOK3S_INTERRUPT_TRACE) || \
55 (\intno == BOOK3S_INTERRUPT_PERFMON) || \
56 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
57 (\intno == BOOK3S_INTERRUPT_VSX)
58
59 b kvmppc_trampoline_\intno
60kvmppc_resume_\intno:
61
62 .endif
63.endm
64
65#else
66
67.macro DO_KVM intno
68.endm
69
70#endif /* CONFIG_KVM_BOOK3S_HANDLER */
71
72#else /*__ASSEMBLY__ */
73
74struct kvmppc_vcore;
75
76/* Struct used for coordinating micro-threading (split-core) mode changes */
77struct kvm_split_mode {
78 unsigned long rpr;
79 unsigned long pmmar;
80 unsigned long ldbar;
81 u8 subcore_size;
82 u8 do_nap;
83 u8 napped[MAX_SMT_THREADS];
84 struct kvmppc_vcore *vc[MAX_SUBCORES];
85 /* Bits for changing lpcr on P9 */
86 unsigned long lpcr_req;
87 unsigned long lpidr_req;
88 unsigned long host_lpcr;
89 u32 do_set;
90 u32 do_restore;
91 union {
92 u32 allphases;
93 u8 phase[4];
94 } lpcr_sync;
95};
96
97/*
98 * This struct goes in the PACA on 64-bit processors. It is used
99 * to store host state that needs to be saved when we enter a guest
100 * and restored when we exit, but isn't specific to any particular
101 * guest or vcpu. It also has some scratch fields used by the guest
102 * exit code.
103 */
104struct kvmppc_host_state {
105 ulong host_r1;
106 ulong host_r2;
107 ulong host_msr;
108 ulong vmhandler;
109 ulong scratch0;
110 ulong scratch1;
111 ulong scratch2;
112 u8 in_guest;
113 u8 restore_hid5;
114 u8 napping;
115
116#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
117 u8 hwthread_req;
118 u8 hwthread_state;
119 u8 host_ipi;
120 u8 ptid; /* thread number within subcore when split */
121 u8 tid; /* thread number within whole core */
122 u8 fake_suspend;
123 struct kvm_vcpu *kvm_vcpu;
124 struct kvmppc_vcore *kvm_vcore;
125 void __iomem *xics_phys;
126 void __iomem *xive_tima_phys;
127 void __iomem *xive_tima_virt;
128 u32 saved_xirr;
129 u64 dabr;
130 u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */
131 u32 host_pmc[8];
132 u64 host_purr;
133 u64 host_spurr;
134 u64 host_dscr;
135 u64 dec_expires;
136 struct kvm_split_mode *kvm_split_mode;
137#endif
138#ifdef CONFIG_PPC_BOOK3S_64
139 u64 cfar;
140 u64 ppr;
141 u64 host_fscr;
142#endif
143};
144
145struct kvmppc_book3s_shadow_vcpu {
146 bool in_use;
147 ulong gpr[14];
148 u32 cr;
149 ulong xer;
150 ulong ctr;
151 ulong lr;
152 ulong pc;
153
154 ulong shadow_srr1;
155 ulong fault_dar;
156 u32 fault_dsisr;
157 u32 last_inst;
158
159#ifdef CONFIG_PPC_BOOK3S_32
160 u32 sr[16]; /* Guest SRs */
161
162 struct kvmppc_host_state hstate;
163#endif
164
165#ifdef CONFIG_PPC_BOOK3S_64
166 u8 slb_max; /* highest used guest slb entry */
167 struct {
168 u64 esid;
169 u64 vsid;
170 } slb[64]; /* guest SLB */
171 u64 shadow_fscr;
172#endif
173};
174
175#endif /*__ASSEMBLY__ */
176
177/* Values for kvm_state */
178#define KVM_HWTHREAD_IN_KERNEL 0
179#define KVM_HWTHREAD_IN_IDLE 1
180#define KVM_HWTHREAD_IN_KVM 2
181
182#endif /* __ASM_KVM_BOOK3S_ASM_H__ */