1 // SPDX-License-Identifier: GPL-2.0-only
2
3 /*
4 * Privileged (non-hypervisor) host registers to save.
5 */
6 struct p9_host_os_sprs {
7 unsigned long iamr;
8 unsigned long amr;
9
10 unsigned int pmc1;
11 unsigned int pmc2;
12 unsigned int pmc3;
13 unsigned int pmc4;
14 unsigned int pmc5;
15 unsigned int pmc6;
16 unsigned long mmcr0;
17 unsigned long mmcr1;
18 unsigned long mmcr2;
19 unsigned long mmcr3;
20 unsigned long mmcra;
21 unsigned long siar;
22 unsigned long sier1;
23 unsigned long sier2;
24 unsigned long sier3;
25 unsigned long sdar;
26 };
27
nesting_enabled(struct kvm * kvm)28 static inline bool nesting_enabled(struct kvm *kvm)
29 {
30 return kvm->arch.nested_enable && kvm_is_radix(kvm);
31 }
32
33 bool load_vcpu_state(struct kvm_vcpu *vcpu,
34 struct p9_host_os_sprs *host_os_sprs);
35 void store_vcpu_state(struct kvm_vcpu *vcpu);
36 void save_p9_host_os_sprs(struct p9_host_os_sprs *host_os_sprs);
37 void restore_p9_host_os_sprs(struct kvm_vcpu *vcpu,
38 struct p9_host_os_sprs *host_os_sprs);
39 void switch_pmu_to_guest(struct kvm_vcpu *vcpu,
40 struct p9_host_os_sprs *host_os_sprs);
41 void switch_pmu_to_host(struct kvm_vcpu *vcpu,
42 struct p9_host_os_sprs *host_os_sprs);
43
44 #ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING
45 void accumulate_time(struct kvm_vcpu *vcpu, struct kvmhv_tb_accumulator *next);
46 #define start_timing(vcpu, next) accumulate_time(vcpu, next)
47 #define end_timing(vcpu) accumulate_time(vcpu, NULL)
48 #else
49 #define accumulate_time(vcpu, next) do {} while (0)
50 #define start_timing(vcpu, next) do {} while (0)
51 #define end_timing(vcpu) do {} while (0)
52 #endif
53
__kvmppc_set_msr_hv(struct kvm_vcpu * vcpu,u64 val)54 static inline void __kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 val)
55 {
56 vcpu->arch.shregs.msr = val;
57 }
58
__kvmppc_get_msr_hv(struct kvm_vcpu * vcpu)59 static inline u64 __kvmppc_get_msr_hv(struct kvm_vcpu *vcpu)
60 {
61 return vcpu->arch.shregs.msr;
62 }
63
64 #define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_SET(reg, size) \
65 static inline void kvmppc_set_##reg ##_hv(struct kvm_vcpu *vcpu, u##size val) \
66 { \
67 vcpu->arch.reg = val; \
68 }
69
70 #define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_GET(reg, size) \
71 static inline u##size kvmppc_get_##reg ##_hv(struct kvm_vcpu *vcpu) \
72 { \
73 return vcpu->arch.reg; \
74 }
75
76 #define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(reg, size) \
77 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_SET(reg, size) \
78 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_GET(reg, size) \
79
80 #define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_SET(reg, size) \
81 static inline void kvmppc_set_##reg ##_hv(struct kvm_vcpu *vcpu, int i, u##size val) \
82 { \
83 vcpu->arch.reg[i] = val; \
84 }
85
86 #define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_GET(reg, size) \
87 static inline u##size kvmppc_get_##reg ##_hv(struct kvm_vcpu *vcpu, int i) \
88 { \
89 return vcpu->arch.reg[i]; \
90 }
91
92 #define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(reg, size) \
93 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_SET(reg, size) \
94 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_GET(reg, size) \
95
96 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(mmcra, 64)
97 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hfscr, 64)
98 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(fscr, 64)
99 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dscr, 64)
100 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(purr, 64)
101 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(spurr, 64)
102 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(amr, 64)
103 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(uamor, 64)
104 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(siar, 64)
105 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(sdar, 64)
106 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(iamr, 64)
107 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr0, 64)
108 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr1, 64)
109 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx0, 64)
110 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx1, 64)
111 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ciabr, 64)
112 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(wort, 64)
113 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ppr, 64)
114 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ctrl, 64)
115
116 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(mmcr, 64)
117 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(sier, 64)
118 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(pmc, 32)
119
120 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(pspb, 32)
121