1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * 4 * Copyright SUSE Linux Products GmbH 2009 5 * 6 * Authors: Alexander Graf <agraf@suse.de> 7 */ 8 9 #ifndef __ASM_KVM_BOOK3S_ASM_H__ 10 #define __ASM_KVM_BOOK3S_ASM_H__ 11 12 /* XICS ICP register offsets */ 13 #define XICS_XIRR 4 14 #define XICS_MFRR 0xc 15 #define XICS_IPI 2 /* interrupt source # for IPIs */ 16 17 /* LPIDs we support with this build -- runtime limit may be lower */ 18 #define KVMPPC_NR_LPIDS (LPID_RSVD + 1) 19 20 /* Maximum number of threads per physical core */ 21 #define MAX_SMT_THREADS 8 22 23 /* Maximum number of subcores per physical core */ 24 #define MAX_SUBCORES 4 25 26 #ifdef __ASSEMBLY__ 27 28 #ifdef CONFIG_KVM_BOOK3S_HANDLER 29 30 #include <asm/kvm_asm.h> 31 32 .macro DO_KVM intno 33 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \ 34 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \ 35 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \ 36 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \ 37 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \ 38 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \ 39 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \ 40 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \ 41 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \ 42 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \ 43 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \ 44 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \ 45 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \ 46 (\intno == BOOK3S_INTERRUPT_TRACE) || \ 47 (\intno == BOOK3S_INTERRUPT_PERFMON) || \ 48 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \ 49 (\intno == BOOK3S_INTERRUPT_VSX) 50 51 b kvmppc_trampoline_\intno 52 kvmppc_resume_\intno: 53 54 .endif 55 .endm 56 57 #else 58 59 .macro DO_KVM intno 60 .endm 61 62 #endif /* CONFIG_KVM_BOOK3S_HANDLER */ 63 64 #else /*__ASSEMBLY__ */ 65 66 struct kvmppc_vcore; 67 68 /* Struct used for coordinating micro-threading (split-core) mode changes */ 69 struct kvm_split_mode { 70 unsigned long rpr; 71 unsigned long pmmar; 72 unsigned long ldbar; 73 u8 subcore_size; 74 u8 do_nap; 75 u8 napped[MAX_SMT_THREADS]; 76 struct kvmppc_vcore *vc[MAX_SUBCORES]; 77 /* Bits for changing lpcr on P9 */ 78 unsigned long lpcr_req; 79 unsigned long lpidr_req; 80 unsigned long host_lpcr; 81 u32 do_set; 82 u32 do_restore; 83 union { 84 u32 allphases; 85 u8 phase[4]; 86 } lpcr_sync; 87 }; 88 89 /* 90 * This struct goes in the PACA on 64-bit processors. It is used 91 * to store host state that needs to be saved when we enter a guest 92 * and restored when we exit, but isn't specific to any particular 93 * guest or vcpu. It also has some scratch fields used by the guest 94 * exit code. 95 */ 96 struct kvmppc_host_state { 97 ulong host_r1; 98 ulong host_r2; 99 ulong host_msr; 100 ulong vmhandler; 101 ulong scratch0; 102 ulong scratch1; 103 ulong scratch2; 104 u8 in_guest; 105 u8 restore_hid5; 106 u8 napping; 107 108 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 109 u8 hwthread_req; 110 u8 hwthread_state; 111 u8 host_ipi; 112 u8 ptid; /* thread number within subcore when split */ 113 u8 tid; /* thread number within whole core */ 114 u8 fake_suspend; 115 struct kvm_vcpu *kvm_vcpu; 116 struct kvmppc_vcore *kvm_vcore; 117 void __iomem *xics_phys; 118 void __iomem *xive_tima_phys; 119 void __iomem *xive_tima_virt; 120 u32 saved_xirr; 121 u64 dabr; 122 u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */ 123 u32 host_pmc[8]; 124 u64 host_purr; 125 u64 host_spurr; 126 u64 host_dscr; 127 u64 dec_expires; 128 struct kvm_split_mode *kvm_split_mode; 129 #endif 130 #ifdef CONFIG_PPC_BOOK3S_64 131 u64 cfar; 132 u64 ppr; 133 u64 host_fscr; 134 #endif 135 }; 136 137 struct kvmppc_book3s_shadow_vcpu { 138 bool in_use; 139 ulong gpr[14]; 140 u32 cr; 141 ulong xer; 142 ulong ctr; 143 ulong lr; 144 ulong pc; 145 146 ulong shadow_srr1; 147 ulong fault_dar; 148 u32 fault_dsisr; 149 u32 last_inst; 150 151 #ifdef CONFIG_PPC_BOOK3S_32 152 u32 sr[16]; /* Guest SRs */ 153 154 struct kvmppc_host_state hstate; 155 #endif 156 157 #ifdef CONFIG_PPC_BOOK3S_64 158 u8 slb_max; /* highest used guest slb entry */ 159 struct { 160 u64 esid; 161 u64 vsid; 162 } slb[64]; /* guest SLB */ 163 u64 shadow_fscr; 164 #endif 165 }; 166 167 #endif /*__ASSEMBLY__ */ 168 169 /* Values for kvm_state */ 170 #define KVM_HWTHREAD_IN_KERNEL 0 171 #define KVM_HWTHREAD_IN_IDLE 1 172 #define KVM_HWTHREAD_IN_KVM 2 173 174 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */ 175
