1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License, version 2, as 4 * published by the Free Software Foundation. 5 * 6 * This program is distributed in the hope that it will be useful, 7 * but WITHOUT ANY WARRANTY; without even the implied warranty of 8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9 * GNU General Public License for more details. 10 * 11 * You should have received a copy of the GNU General Public License 12 * along with this program; if not, write to the Free Software 13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 14 * 15 * Copyright SUSE Linux Products GmbH 2009 16 * 17 * Authors: Alexander Graf <agraf@suse.de> 18 */ 19 20 #ifndef __ASM_KVM_BOOK3S_ASM_H__ 21 #define __ASM_KVM_BOOK3S_ASM_H__ 22 23 /* XICS ICP register offsets */ 24 #define XICS_XIRR 4 25 #define XICS_MFRR 0xc 26 #define XICS_IPI 2 /* interrupt source # for IPIs */ 27 28 /* Maximum number of threads per physical core */ 29 #define MAX_SMT_THREADS 8 30 31 /* Maximum number of subcores per physical core */ 32 #define MAX_SUBCORES 4 33 34 #ifdef __ASSEMBLY__ 35 36 #ifdef CONFIG_KVM_BOOK3S_HANDLER 37 38 #include <asm/kvm_asm.h> 39 40 .macro DO_KVM intno 41 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \ 42 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \ 43 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \ 44 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \ 45 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \ 46 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \ 47 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \ 48 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \ 49 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \ 50 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \ 51 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \ 52 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \ 53 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \ 54 (\intno == BOOK3S_INTERRUPT_TRACE) || \ 55 (\intno == BOOK3S_INTERRUPT_PERFMON) || \ 56 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \ 57 (\intno == BOOK3S_INTERRUPT_VSX) 58 59 b kvmppc_trampoline_\intno 60 kvmppc_resume_\intno: 61 62 .endif 63 .endm 64 65 #else 66 67 .macro DO_KVM intno 68 .endm 69 70 #endif /* CONFIG_KVM_BOOK3S_HANDLER */ 71 72 #else /*__ASSEMBLY__ */ 73 74 struct kvmppc_vcore; 75 76 /* Struct used for coordinating micro-threading (split-core) mode changes */ 77 struct kvm_split_mode { 78 unsigned long rpr; 79 unsigned long pmmar; 80 unsigned long ldbar; 81 u8 subcore_size; 82 u8 do_nap; 83 u8 napped[MAX_SMT_THREADS]; 84 struct kvmppc_vcore *master_vcs[MAX_SUBCORES]; 85 }; 86 87 /* 88 * This struct goes in the PACA on 64-bit processors. It is used 89 * to store host state that needs to be saved when we enter a guest 90 * and restored when we exit, but isn't specific to any particular 91 * guest or vcpu. It also has some scratch fields used by the guest 92 * exit code. 93 */ 94 struct kvmppc_host_state { 95 ulong host_r1; 96 ulong host_r2; 97 ulong host_msr; 98 ulong vmhandler; 99 ulong scratch0; 100 ulong scratch1; 101 ulong scratch2; 102 u8 in_guest; 103 u8 restore_hid5; 104 u8 napping; 105 106 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 107 u8 hwthread_req; 108 u8 hwthread_state; 109 u8 host_ipi; 110 u8 ptid; 111 struct kvm_vcpu *kvm_vcpu; 112 struct kvmppc_vcore *kvm_vcore; 113 unsigned long xics_phys; 114 u32 saved_xirr; 115 u64 dabr; 116 u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */ 117 u32 host_pmc[8]; 118 u64 host_purr; 119 u64 host_spurr; 120 u64 host_dscr; 121 u64 dec_expires; 122 struct kvm_split_mode *kvm_split_mode; 123 #endif 124 #ifdef CONFIG_PPC_BOOK3S_64 125 u64 cfar; 126 u64 ppr; 127 u64 host_fscr; 128 #endif 129 }; 130 131 struct kvmppc_book3s_shadow_vcpu { 132 bool in_use; 133 ulong gpr[14]; 134 u32 cr; 135 ulong xer; 136 ulong ctr; 137 ulong lr; 138 ulong pc; 139 140 ulong shadow_srr1; 141 ulong fault_dar; 142 u32 fault_dsisr; 143 u32 last_inst; 144 145 #ifdef CONFIG_PPC_BOOK3S_32 146 u32 sr[16]; /* Guest SRs */ 147 148 struct kvmppc_host_state hstate; 149 #endif 150 151 #ifdef CONFIG_PPC_BOOK3S_64 152 u8 slb_max; /* highest used guest slb entry */ 153 struct { 154 u64 esid; 155 u64 vsid; 156 } slb[64]; /* guest SLB */ 157 u64 shadow_fscr; 158 #endif 159 }; 160 161 #endif /*__ASSEMBLY__ */ 162 163 /* Values for kvm_state */ 164 #define KVM_HWTHREAD_IN_KERNEL 0 165 #define KVM_HWTHREAD_IN_IDLE 1 166 #define KVM_HWTHREAD_IN_KVM 2 167 168 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */ 169