1// SPDX-License-Identifier: GPL-2.0-only
2
3/*
4 * Privileged (non-hypervisor) host registers to save.
5 */
6struct 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
28static inline bool nesting_enabled(struct kvm *kvm)
29{
30	return kvm->arch.nested_enable && kvm_is_radix(kvm);
31}
32
33bool load_vcpu_state(struct kvm_vcpu *vcpu,
34			   struct p9_host_os_sprs *host_os_sprs);
35void store_vcpu_state(struct kvm_vcpu *vcpu);
36void save_p9_host_os_sprs(struct p9_host_os_sprs *host_os_sprs);
37void restore_p9_host_os_sprs(struct kvm_vcpu *vcpu,
38				    struct p9_host_os_sprs *host_os_sprs);
39void switch_pmu_to_guest(struct kvm_vcpu *vcpu,
40			    struct p9_host_os_sprs *host_os_sprs);
41void 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
45void 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
54static inline void __kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 val)
55{
56	vcpu->arch.shregs.msr = val;
57}
58
59static 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)			\
65static 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)			\
71static 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)		\
81static 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)		\
87static 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
96KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(mmcra, 64)
97KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hfscr, 64)
98KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(fscr, 64)
99KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dscr, 64)
100KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(purr, 64)
101KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(spurr, 64)
102KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(amr, 64)
103KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(uamor, 64)
104KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(siar, 64)
105KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(sdar, 64)
106KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(iamr, 64)
107KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr0, 64)
108KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr1, 64)
109KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx0, 64)
110KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx1, 64)
111KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ciabr, 64)
112KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(wort, 64)
113KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ppr, 64)
114KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ctrl, 64)
115
116KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(mmcr, 64)
117KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(sier, 64)
118KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(pmc, 32)
119
120KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(pspb, 32)
121