arch/powerpc/kvm/book3s_hv.h

   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
  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
  54 #define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_SET(reg, size)                   \
  55 static inline void kvmppc_set_##reg ##_hv(struct kvm_vcpu *vcpu, u##size val)   \
  56 {                                                                       \
  57         vcpu->arch.reg = val;                                           \
  58 }
  59
  60 #define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_GET(reg, size)                   \
  61 static inline u##size kvmppc_get_##reg ##_hv(struct kvm_vcpu *vcpu)     \
  62 {                                                                       \
  63         return vcpu->arch.reg;                                          \
  64 }
  65
  66 #define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(reg, size)                       \
  67         KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_SET(reg, size)                   \
  68         KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_GET(reg, size)                   \
  69
  70 #define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_SET(reg, size)             \
  71 static inline void kvmppc_set_##reg ##_hv(struct kvm_vcpu *vcpu, int i, u##size val)    \
  72 {                                                                       \
  73         vcpu->arch.reg[i] = val;                                        \
  74 }
  75
  76 #define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_GET(reg, size)             \
  77 static inline u##size kvmppc_get_##reg ##_hv(struct kvm_vcpu *vcpu, int i)      \
  78 {                                                                       \
  79         return vcpu->arch.reg[i];                                       \
  80 }
  81
  82 #define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(reg, size)                 \
  83         KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_SET(reg, size)             \
  84         KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_GET(reg, size)             \
  85
  86 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(mmcra, 64)
  87 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hfscr, 64)
  88 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(fscr, 64)
  89 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dscr, 64)
  90 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(purr, 64)
  91 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(spurr, 64)
  92 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(amr, 64)
  93 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(uamor, 64)
  94 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(siar, 64)
  95 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(sdar, 64)
  96 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(iamr, 64)
  97 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr0, 64)
  98 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr1, 64)
  99 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx0, 64)
 100 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx1, 64)
 101 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ciabr, 64)
 102 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(wort, 64)
 103 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ppr, 64)
 104 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ctrl, 64)
 105
 106 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(mmcr, 64)
 107 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(sier, 64)
 108 KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(pmc, 32)
 109
 110 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(pspb, 32)