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 }; 78 79 /* 80 * This struct goes in the PACA on 64-bit processors. It is used 81 * to store host state that needs to be saved when we enter a guest 82 * and restored when we exit, but isn't specific to any particular 83 * guest or vcpu. It also has some scratch fields used by the guest 84 * exit code. 85 */ 86 struct kvmppc_host_state { 87 ulong host_r1; 88 ulong host_r2; 89 ulong host_msr; 90 ulong vmhandler; 91 ulong scratch0; 92 ulong scratch1; 93 ulong scratch2; 94 u8 in_guest; 95 u8 restore_hid5; 96 u8 napping; 97 98 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 99 u8 hwthread_req; 100 u8 hwthread_state; 101 u8 host_ipi; 102 u8 ptid; /* thread number within subcore when split */ 103 u8 fake_suspend; 104 struct kvm_vcpu *kvm_vcpu; 105 struct kvmppc_vcore *kvm_vcore; 106 void __iomem *xics_phys; 107 void __iomem *xive_tima_phys; 108 void __iomem *xive_tima_virt; 109 u32 saved_xirr; 110 u64 dabr; 111 u64 host_mmcr[10]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER, MMCR3, SIER2/3 */ 112 u32 host_pmc[8]; 113 u64 host_purr; 114 u64 host_spurr; 115 u64 host_dscr; 116 u64 dec_expires; 117 struct kvm_split_mode *kvm_split_mode; 118 #endif 119 #ifdef CONFIG_PPC_BOOK3S_64 120 u64 cfar; 121 u64 ppr; 122 u64 host_fscr; 123 #endif 124 }; 125 126 struct kvmppc_book3s_shadow_vcpu { 127 bool in_use; 128 ulong gpr[14]; 129 u32 cr; 130 ulong xer; 131 ulong ctr; 132 ulong lr; 133 ulong pc; 134 135 ulong shadow_srr1; 136 ulong fault_dar; 137 u32 fault_dsisr; 138 u32 last_inst; 139 140 #ifdef CONFIG_PPC_BOOK3S_32 141 u32 sr[16]; /* Guest SRs */ 142 143 struct kvmppc_host_state hstate; 144 #endif 145 146 #ifdef CONFIG_PPC_BOOK3S_64 147 u8 slb_max; /* highest used guest slb entry */ 148 struct { 149 u64 esid; 150 u64 vsid; 151 } slb[64]; /* guest SLB */ 152 u64 shadow_fscr; 153 #endif 154 }; 155 156 #endif /*__ASSEMBLY__ */ 157 158 /* Values for kvm_state */ 159 #define KVM_HWTHREAD_IN_KERNEL 0 160 #define KVM_HWTHREAD_IN_IDLE 1 161 #define KVM_HWTHREAD_IN_KVM 2 162 163 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */ 164