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 /* Maximum number of threads per physical core */ 18 #define MAX_SMT_THREADS 8 19 20 /* Maximum number of subcores per physical core */ 21 #define MAX_SUBCORES 4 22 23 #ifdef __ASSEMBLY__ 24 25 #ifdef CONFIG_KVM_BOOK3S_HANDLER 26 27 #include <asm/kvm_asm.h> 28 29 .macro DO_KVM intno 30 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \ 31 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \ 32 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \ 33 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \ 34 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \ 35 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \ 36 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \ 37 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \ 38 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \ 39 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \ 40 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \ 41 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \ 42 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \ 43 (\intno == BOOK3S_INTERRUPT_TRACE) || \ 44 (\intno == BOOK3S_INTERRUPT_PERFMON) || \ 45 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \ 46 (\intno == BOOK3S_INTERRUPT_VSX) 47 48 b kvmppc_trampoline_\intno 49 kvmppc_resume_\intno: 50 51 .endif 52 .endm 53 54 #else 55 56 .macro DO_KVM intno 57 .endm 58 59 #endif /* CONFIG_KVM_BOOK3S_HANDLER */ 60 61 #else /*__ASSEMBLY__ */ 62 63 struct kvmppc_vcore; 64 65 /* Struct used for coordinating micro-threading (split-core) mode changes */ 66 struct kvm_split_mode { 67 unsigned long rpr; 68 unsigned long pmmar; 69 unsigned long ldbar; 70 u8 subcore_size; 71 u8 do_nap; 72 u8 napped[MAX_SMT_THREADS]; 73 struct kvmppc_vcore *vc[MAX_SUBCORES]; 74 }; 75 76 /* 77 * This struct goes in the PACA on 64-bit processors. It is used 78 * to store host state that needs to be saved when we enter a guest 79 * and restored when we exit, but isn't specific to any particular 80 * guest or vcpu. It also has some scratch fields used by the guest 81 * exit code. 82 */ 83 struct kvmppc_host_state { 84 ulong host_r1; 85 ulong host_r2; 86 ulong host_msr; 87 ulong vmhandler; 88 ulong scratch0; 89 ulong scratch1; 90 ulong scratch2; 91 u8 in_guest; 92 u8 restore_hid5; 93 u8 napping; 94 95 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 96 u8 hwthread_req; 97 u8 hwthread_state; 98 u8 host_ipi; 99 u8 ptid; /* thread number within subcore when split */ 100 u8 fake_suspend; 101 struct kvm_vcpu *kvm_vcpu; 102 struct kvmppc_vcore *kvm_vcore; 103 void __iomem *xics_phys; 104 void __iomem *xive_tima_phys; 105 void __iomem *xive_tima_virt; 106 u32 saved_xirr; 107 u64 dabr; 108 u64 host_mmcr[10]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER, MMCR3, SIER2/3 */ 109 u32 host_pmc[8]; 110 u64 host_purr; 111 u64 host_spurr; 112 u64 host_dscr; 113 u64 dec_expires; 114 struct kvm_split_mode *kvm_split_mode; 115 #endif 116 #ifdef CONFIG_PPC_BOOK3S_64 117 u64 cfar; 118 u64 ppr; 119 u64 host_fscr; 120 #endif 121 }; 122 123 struct kvmppc_book3s_shadow_vcpu { 124 bool in_use; 125 ulong gpr[14]; 126 u32 cr; 127 ulong xer; 128 ulong ctr; 129 ulong lr; 130 ulong pc; 131 132 ulong shadow_srr1; 133 ulong fault_dar; 134 u32 fault_dsisr; 135 u32 last_inst; 136 137 #ifdef CONFIG_PPC_BOOK3S_32 138 u32 sr[16]; /* Guest SRs */ 139 140 struct kvmppc_host_state hstate; 141 #endif 142 143 #ifdef CONFIG_PPC_BOOK3S_64 144 u8 slb_max; /* highest used guest slb entry */ 145 struct { 146 u64 esid; 147 u64 vsid; 148 } slb[64]; /* guest SLB */ 149 u64 shadow_fscr; 150 #endif 151 }; 152 153 #endif /*__ASSEMBLY__ */ 154 155 /* Values for kvm_state */ 156 #define KVM_HWTHREAD_IN_KERNEL 0 157 #define KVM_HWTHREAD_IN_IDLE 1 158 #define KVM_HWTHREAD_IN_KVM 2 159 160 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */ 161