1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 *
4 * Copyright IBM Corp. 2008
5 *
6 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
7 */
8
9 #ifndef __KVM_BOOKE_H__
10 #define __KVM_BOOKE_H__
11
12 #include <linux/types.h>
13 #include <linux/kvm_host.h>
14 #include <asm/kvm_ppc.h>
15 #include <asm/switch_to.h>
16 #include "timing.h"
17
18 /* interrupt priortity ordering */
19 #define BOOKE_IRQPRIO_DATA_STORAGE 0
20 #define BOOKE_IRQPRIO_INST_STORAGE 1
21 #define BOOKE_IRQPRIO_ALIGNMENT 2
22 #define BOOKE_IRQPRIO_PROGRAM 3
23 #define BOOKE_IRQPRIO_FP_UNAVAIL 4
24 #ifdef CONFIG_SPE_POSSIBLE
25 #define BOOKE_IRQPRIO_SPE_UNAVAIL 5
26 #define BOOKE_IRQPRIO_SPE_FP_DATA 6
27 #define BOOKE_IRQPRIO_SPE_FP_ROUND 7
28 #endif
29 #ifdef CONFIG_PPC_E500MC
30 #define BOOKE_IRQPRIO_ALTIVEC_UNAVAIL 5
31 #define BOOKE_IRQPRIO_ALTIVEC_ASSIST 6
32 #endif
33 #define BOOKE_IRQPRIO_SYSCALL 8
34 #define BOOKE_IRQPRIO_AP_UNAVAIL 9
35 #define BOOKE_IRQPRIO_DTLB_MISS 10
36 #define BOOKE_IRQPRIO_ITLB_MISS 11
37 #define BOOKE_IRQPRIO_MACHINE_CHECK 12
38 #define BOOKE_IRQPRIO_DEBUG 13
39 #define BOOKE_IRQPRIO_CRITICAL 14
40 #define BOOKE_IRQPRIO_WATCHDOG 15
41 #define BOOKE_IRQPRIO_EXTERNAL 16
42 #define BOOKE_IRQPRIO_FIT 17
43 #define BOOKE_IRQPRIO_DECREMENTER 18
44 #define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19
45 /* Internal pseudo-irqprio for level triggered externals */
46 #define BOOKE_IRQPRIO_EXTERNAL_LEVEL 20
47 #define BOOKE_IRQPRIO_DBELL 21
48 #define BOOKE_IRQPRIO_DBELL_CRIT 22
49 #define BOOKE_IRQPRIO_MAX 23
50
51 #define BOOKE_IRQMASK_EE ((1 << BOOKE_IRQPRIO_EXTERNAL_LEVEL) | \
52 (1 << BOOKE_IRQPRIO_PERFORMANCE_MONITOR) | \
53 (1 << BOOKE_IRQPRIO_DBELL) | \
54 (1 << BOOKE_IRQPRIO_DECREMENTER) | \
55 (1 << BOOKE_IRQPRIO_FIT) | \
56 (1 << BOOKE_IRQPRIO_EXTERNAL))
57
58 #define BOOKE_IRQMASK_CE ((1 << BOOKE_IRQPRIO_DBELL_CRIT) | \
59 (1 << BOOKE_IRQPRIO_WATCHDOG) | \
60 (1 << BOOKE_IRQPRIO_CRITICAL))
61
62 extern unsigned long kvmppc_booke_handlers;
63 extern unsigned long kvmppc_booke_handler_addr[];
64
65 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr);
66 void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr);
67
68 void kvmppc_set_epcr(struct kvm_vcpu *vcpu, u32 new_epcr);
69 void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr);
70 void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
71 void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
72
73 int kvmppc_booke_emulate_op(struct kvm_vcpu *vcpu,
74 unsigned int inst, int *advance);
75 int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
76 int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
77
78 /* low-level asm code to transfer guest state */
79 void kvmppc_load_guest_spe(struct kvm_vcpu *vcpu);
80 void kvmppc_save_guest_spe(struct kvm_vcpu *vcpu);
81
82 /* high-level function, manages flags, host state */
83 void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu);
84
85 void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
86 void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu);
87
88 enum int_class {
89 INT_CLASS_NONCRIT,
90 INT_CLASS_CRIT,
91 INT_CLASS_MC,
92 INT_CLASS_DBG,
93 };
94
95 void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type);
96
97 extern int kvmppc_core_emulate_op_e500(struct kvm_vcpu *vcpu,
98 unsigned int inst, int *advance);
99 extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
100 ulong spr_val);
101 extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
102 ulong *spr_val);
103 extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
104 ulong spr_val);
105 extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
106 ulong *spr_val);
107
kvmppc_clear_dbsr(void)108 static inline void kvmppc_clear_dbsr(void)
109 {
110 mtspr(SPRN_DBSR, mfspr(SPRN_DBSR));
111 }
112
113 int kvmppc_handle_exit(struct kvm_vcpu *vcpu, unsigned int exit_nr);
114
115 #endif /* __KVM_BOOKE_H__ */
116