1// SPDX-License-Identifier: GPL-2.0-only
2
3/*
4 * Privileged (non-hypervisor) host registers to save.
5 */
6#include "asm/guest-state-buffer.h"
7
8struct p9_host_os_sprs {
9 unsigned long iamr;
10 unsigned long amr;
11
12 unsigned int pmc1;
13 unsigned int pmc2;
14 unsigned int pmc3;
15 unsigned int pmc4;
16 unsigned int pmc5;
17 unsigned int pmc6;
18 unsigned long mmcr0;
19 unsigned long mmcr1;
20 unsigned long mmcr2;
21 unsigned long mmcr3;
22 unsigned long mmcra;
23 unsigned long siar;
24 unsigned long sier1;
25 unsigned long sier2;
26 unsigned long sier3;
27 unsigned long sdar;
28};
29
30static inline bool nesting_enabled(struct kvm *kvm)
31{
32 return kvm->arch.nested_enable && kvm_is_radix(kvm);
33}
34
35bool load_vcpu_state(struct kvm_vcpu *vcpu,
36 struct p9_host_os_sprs *host_os_sprs);
37void store_vcpu_state(struct kvm_vcpu *vcpu);
38void save_p9_host_os_sprs(struct p9_host_os_sprs *host_os_sprs);
39void restore_p9_host_os_sprs(struct kvm_vcpu *vcpu,
40 struct p9_host_os_sprs *host_os_sprs);
41void switch_pmu_to_guest(struct kvm_vcpu *vcpu,
42 struct p9_host_os_sprs *host_os_sprs);
43void switch_pmu_to_host(struct kvm_vcpu *vcpu,
44 struct p9_host_os_sprs *host_os_sprs);
45
46#ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING
47void accumulate_time(struct kvm_vcpu *vcpu, struct kvmhv_tb_accumulator *next);
48#define start_timing(vcpu, next) accumulate_time(vcpu, next)
49#define end_timing(vcpu) accumulate_time(vcpu, NULL)
50#else
51#define accumulate_time(vcpu, next) do {} while (0)
52#define start_timing(vcpu, next) do {} while (0)
53#define end_timing(vcpu) do {} while (0)
54#endif
55
56static inline void __kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 val)
57{
58 vcpu->arch.shregs.msr = val;
59 kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_MSR);
60}
61
62static inline u64 __kvmppc_get_msr_hv(struct kvm_vcpu *vcpu)
63{
64 WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_MSR) < 0);
65 return vcpu->arch.shregs.msr;
66}
67
68#define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_SET(reg, size, iden) \
69static inline void kvmppc_set_##reg ##_hv(struct kvm_vcpu *vcpu, u##size val) \
70{ \
71 vcpu->arch.reg = val; \
72 kvmhv_nestedv2_mark_dirty(vcpu, iden); \
73}
74
75#define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_GET(reg, size, iden) \
76static inline u##size kvmppc_get_##reg ##_hv(struct kvm_vcpu *vcpu) \
77{ \
78 kvmhv_nestedv2_cached_reload(vcpu, iden); \
79 return vcpu->arch.reg; \
80}
81
82#define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(reg, size, iden) \
83 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_SET(reg, size, iden) \
84 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_GET(reg, size, iden) \
85
86#define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_SET(reg, size, iden) \
87static inline void kvmppc_set_##reg ##_hv(struct kvm_vcpu *vcpu, int i, u##size val) \
88{ \
89 vcpu->arch.reg[i] = val; \
90 kvmhv_nestedv2_mark_dirty(vcpu, iden(i)); \
91}
92
93#define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_GET(reg, size, iden) \
94static inline u##size kvmppc_get_##reg ##_hv(struct kvm_vcpu *vcpu, int i) \
95{ \
96 WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, iden(i)) < 0); \
97 return vcpu->arch.reg[i]; \
98}
99
100#define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(reg, size, iden) \
101 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_SET(reg, size, iden) \
102 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_GET(reg, size, iden) \
103
104KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(mmcra, 64, KVMPPC_GSID_MMCRA)
105KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hfscr, 64, KVMPPC_GSID_HFSCR)
106KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(fscr, 64, KVMPPC_GSID_FSCR)
107KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dscr, 64, KVMPPC_GSID_DSCR)
108KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(purr, 64, KVMPPC_GSID_PURR)
109KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(spurr, 64, KVMPPC_GSID_SPURR)
110KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(amr, 64, KVMPPC_GSID_AMR)
111KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(uamor, 64, KVMPPC_GSID_UAMOR)
112KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(siar, 64, KVMPPC_GSID_SIAR)
113KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(sdar, 64, KVMPPC_GSID_SDAR)
114KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(iamr, 64, KVMPPC_GSID_IAMR)
115KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr0, 64, KVMPPC_GSID_DAWR0)
116KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr1, 64, KVMPPC_GSID_DAWR1)
117KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx0, 64, KVMPPC_GSID_DAWRX0)
118KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx1, 64, KVMPPC_GSID_DAWRX1)
119KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dexcr, 64, KVMPPC_GSID_DEXCR)
120KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hashkeyr, 64, KVMPPC_GSID_HASHKEYR)
121KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hashpkeyr, 64, KVMPPC_GSID_HASHPKEYR)
122KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ciabr, 64, KVMPPC_GSID_CIABR)
123KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(wort, 64, KVMPPC_GSID_WORT)
124KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ppr, 64, KVMPPC_GSID_PPR)
125KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ctrl, 64, KVMPPC_GSID_CTRL);
126
127KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(mmcr, 64, KVMPPC_GSID_MMCR)
128KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(sier, 64, KVMPPC_GSID_SIER)
129KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(pmc, 32, KVMPPC_GSID_PMC)
130
131KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(pspb, 32, KVMPPC_GSID_PSPB)
132

source code of linux/arch/powerpc/kvm/book3s_hv.h