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75f74f0d HB |
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 IBM Corp. 2008 | |
16 | * | |
17 | * Authors: Hollis Blanchard <hollisb@us.ibm.com> | |
18 | */ | |
19 | ||
20 | #ifndef __KVM_BOOKE_H__ | |
21 | #define __KVM_BOOKE_H__ | |
22 | ||
23 | #include <linux/types.h> | |
24 | #include <linux/kvm_host.h> | |
d0c7dc03 | 25 | #include <asm/kvm_ppc.h> |
8fae845f | 26 | #include <asm/switch_to.h> |
73e75b41 | 27 | #include "timing.h" |
75f74f0d | 28 | |
d4cf3892 HB |
29 | /* interrupt priortity ordering */ |
30 | #define BOOKE_IRQPRIO_DATA_STORAGE 0 | |
31 | #define BOOKE_IRQPRIO_INST_STORAGE 1 | |
32 | #define BOOKE_IRQPRIO_ALIGNMENT 2 | |
33 | #define BOOKE_IRQPRIO_PROGRAM 3 | |
34 | #define BOOKE_IRQPRIO_FP_UNAVAIL 4 | |
bb3a8a17 HB |
35 | #define BOOKE_IRQPRIO_SPE_UNAVAIL 5 |
36 | #define BOOKE_IRQPRIO_SPE_FP_DATA 6 | |
37 | #define BOOKE_IRQPRIO_SPE_FP_ROUND 7 | |
38 | #define BOOKE_IRQPRIO_SYSCALL 8 | |
39 | #define BOOKE_IRQPRIO_AP_UNAVAIL 9 | |
40 | #define BOOKE_IRQPRIO_DTLB_MISS 10 | |
41 | #define BOOKE_IRQPRIO_ITLB_MISS 11 | |
42 | #define BOOKE_IRQPRIO_MACHINE_CHECK 12 | |
43 | #define BOOKE_IRQPRIO_DEBUG 13 | |
44 | #define BOOKE_IRQPRIO_CRITICAL 14 | |
45 | #define BOOKE_IRQPRIO_WATCHDOG 15 | |
46 | #define BOOKE_IRQPRIO_EXTERNAL 16 | |
47 | #define BOOKE_IRQPRIO_FIT 17 | |
48 | #define BOOKE_IRQPRIO_DECREMENTER 18 | |
49 | #define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19 | |
c5335f17 AG |
50 | /* Internal pseudo-irqprio for level triggered externals */ |
51 | #define BOOKE_IRQPRIO_EXTERNAL_LEVEL 20 | |
d30f6e48 SW |
52 | #define BOOKE_IRQPRIO_DBELL 21 |
53 | #define BOOKE_IRQPRIO_DBELL_CRIT 22 | |
54 | #define BOOKE_IRQPRIO_MAX 23 | |
55 | ||
56 | #define BOOKE_IRQMASK_EE ((1 << BOOKE_IRQPRIO_EXTERNAL_LEVEL) | \ | |
57 | (1 << BOOKE_IRQPRIO_PERFORMANCE_MONITOR) | \ | |
58 | (1 << BOOKE_IRQPRIO_DBELL) | \ | |
59 | (1 << BOOKE_IRQPRIO_DECREMENTER) | \ | |
60 | (1 << BOOKE_IRQPRIO_FIT) | \ | |
61 | (1 << BOOKE_IRQPRIO_EXTERNAL)) | |
62 | ||
63 | #define BOOKE_IRQMASK_CE ((1 << BOOKE_IRQPRIO_DBELL_CRIT) | \ | |
64 | (1 << BOOKE_IRQPRIO_WATCHDOG) | \ | |
65 | (1 << BOOKE_IRQPRIO_CRITICAL)) | |
bb3a8a17 HB |
66 | |
67 | extern unsigned long kvmppc_booke_handlers; | |
d4cf3892 | 68 | |
4cd35f67 | 69 | void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr); |
dd9ebf1f | 70 | void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr); |
75f74f0d | 71 | |
dfd4d47e SW |
72 | void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr); |
73 | void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits); | |
74 | void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits); | |
75 | ||
d0c7dc03 HB |
76 | int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, |
77 | unsigned int inst, int *advance); | |
54771e62 AG |
78 | int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val); |
79 | int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val); | |
d0c7dc03 | 80 | |
4cd35f67 SW |
81 | /* low-level asm code to transfer guest state */ |
82 | void kvmppc_load_guest_spe(struct kvm_vcpu *vcpu); | |
83 | void kvmppc_save_guest_spe(struct kvm_vcpu *vcpu); | |
84 | ||
85 | /* high-level function, manages flags, host state */ | |
86 | void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu); | |
87 | ||
94fa9d99 SW |
88 | void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu); |
89 | void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu); | |
90 | ||
d30f6e48 SW |
91 | enum int_class { |
92 | INT_CLASS_NONCRIT, | |
93 | INT_CLASS_CRIT, | |
94 | INT_CLASS_MC, | |
95 | INT_CLASS_DBG, | |
96 | }; | |
97 | ||
98 | void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type); | |
99 | ||
8fae845f SW |
100 | /* |
101 | * Load up guest vcpu FP state if it's needed. | |
102 | * It also set the MSR_FP in thread so that host know | |
103 | * we're holding FPU, and then host can help to save | |
104 | * guest vcpu FP state if other threads require to use FPU. | |
105 | * This simulates an FP unavailable fault. | |
106 | * | |
107 | * It requires to be called with preemption disabled. | |
108 | */ | |
109 | static inline void kvmppc_load_guest_fp(struct kvm_vcpu *vcpu) | |
110 | { | |
111 | #ifdef CONFIG_PPC_FPU | |
112 | if (vcpu->fpu_active && !(current->thread.regs->msr & MSR_FP)) { | |
113 | load_up_fpu(); | |
114 | current->thread.regs->msr |= MSR_FP; | |
115 | } | |
116 | #endif | |
117 | } | |
118 | ||
119 | /* | |
120 | * Save guest vcpu FP state into thread. | |
121 | * It requires to be called with preemption disabled. | |
122 | */ | |
123 | static inline void kvmppc_save_guest_fp(struct kvm_vcpu *vcpu) | |
124 | { | |
125 | #ifdef CONFIG_PPC_FPU | |
126 | if (vcpu->fpu_active && (current->thread.regs->msr & MSR_FP)) | |
127 | giveup_fpu(current); | |
128 | #endif | |
129 | } | |
75f74f0d | 130 | #endif /* __KVM_BOOKE_H__ */ |