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 /* LPIDs we support with this build -- runtime limit may be lower */ 29 #define KVMPPC_NR_LPIDS (LPID_RSVD + 1) 30 31 /* Maximum number of threads per physical core */ 32 #define MAX_SMT_THREADS 8 33 34 /* Maximum number of subcores per physical core */ 35 #define MAX_SUBCORES 4 36 37 #ifdef __ASSEMBLY__ 38 39 #ifdef CONFIG_KVM_BOOK3S_HANDLER 40 41 #include <asm/kvm_asm.h> 42 43 .macro DO_KVM intno 44 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \ 45 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \ 46 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \ 47 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \ 48 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \ 49 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \ 50 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \ 51 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \ 52 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \ 53 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \ 54 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \ 55 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \ 56 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \ 57 (\intno == BOOK3S_INTERRUPT_TRACE) || \ 58 (\intno == BOOK3S_INTERRUPT_PERFMON) || \ 59 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \ 60 (\intno == BOOK3S_INTERRUPT_VSX) 61 62 b kvmppc_trampoline_\intno 63 kvmppc_resume_\intno: 64 65 .endif 66 .endm 67 68 #else 69 70 .macro DO_KVM intno 71 .endm 72 73 #endif /* CONFIG_KVM_BOOK3S_HANDLER */ 74 75 #else /*__ASSEMBLY__ */ 76 77 struct kvmppc_vcore; 78 79 /* Struct used for coordinating micro-threading (split-core) mode changes */ 80 struct kvm_split_mode { 81 unsigned long rpr; 82 unsigned long pmmar; 83 unsigned long ldbar; 84 u8 subcore_size; 85 u8 do_nap; 86 u8 napped[MAX_SMT_THREADS]; 87 struct kvmppc_vcore *vc[MAX_SUBCORES]; 88 /* Bits for changing lpcr on P9 */ 89 unsigned long lpcr_req; 90 unsigned long lpidr_req; 91 unsigned long host_lpcr; 92 u32 do_set; 93 u32 do_restore; 94 union { 95 u32 allphases; 96 u8 phase[4]; 97 } lpcr_sync; 98 }; 99 100 /* 101 * This struct goes in the PACA on 64-bit processors. It is used 102 * to store host state that needs to be saved when we enter a guest 103 * and restored when we exit, but isn't specific to any particular 104 * guest or vcpu. It also has some scratch fields used by the guest 105 * exit code. 106 */ 107 struct kvmppc_host_state { 108 ulong host_r1; 109 ulong host_r2; 110 ulong host_msr; 111 ulong vmhandler; 112 ulong scratch0; 113 ulong scratch1; 114 ulong scratch2; 115 u8 in_guest; 116 u8 restore_hid5; 117 u8 napping; 118 119 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 120 u8 hwthread_req; 121 u8 hwthread_state; 122 u8 host_ipi; 123 u8 ptid; /* thread number within subcore when split */ 124 u8 tid; /* thread number within whole core */ 125 u8 fake_suspend; 126 struct kvm_vcpu *kvm_vcpu; 127 struct kvmppc_vcore *kvm_vcore; 128 void __iomem *xics_phys; 129 void __iomem *xive_tima_phys; 130 void __iomem *xive_tima_virt; 131 u32 saved_xirr; 132 u64 dabr; 133 u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */ 134 u32 host_pmc[8]; 135 u64 host_purr; 136 u64 host_spurr; 137 u64 host_dscr; 138 u64 dec_expires; 139 struct kvm_split_mode *kvm_split_mode; 140 #endif 141 #ifdef CONFIG_PPC_BOOK3S_64 142 u64 cfar; 143 u64 ppr; 144 u64 host_fscr; 145 #endif 146 }; 147 148 struct kvmppc_book3s_shadow_vcpu { 149 bool in_use; 150 ulong gpr[14]; 151 u32 cr; 152 ulong xer; 153 ulong ctr; 154 ulong lr; 155 ulong pc; 156 157 ulong shadow_srr1; 158 ulong fault_dar; 159 u32 fault_dsisr; 160 u32 last_inst; 161 162 #ifdef CONFIG_PPC_BOOK3S_32 163 u32 sr[16]; /* Guest SRs */ 164 165 struct kvmppc_host_state hstate; 166 #endif 167 168 #ifdef CONFIG_PPC_BOOK3S_64 169 u8 slb_max; /* highest used guest slb entry */ 170 struct { 171 u64 esid; 172 u64 vsid; 173 } slb[64]; /* guest SLB */ 174 u64 shadow_fscr; 175 #endif 176 }; 177 178 #endif /*__ASSEMBLY__ */ 179 180 /* Values for kvm_state */ 181 #define KVM_HWTHREAD_IN_KERNEL 0 182 #define KVM_HWTHREAD_IN_IDLE 1 183 #define KVM_HWTHREAD_IN_KVM 2 184 185 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */ 186