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 *vc[MAX_SUBCORES]; 85 /* Bits for changing lpcr on P9 */ 86 unsigned long lpcr_req; 87 unsigned long lpidr_req; 88 unsigned long host_lpcr; 89 u32 do_set; 90 u32 do_restore; 91 union { 92 u32 allphases; 93 u8 phase[4]; 94 } lpcr_sync; 95 }; 96 97 /* 98 * This struct goes in the PACA on 64-bit processors. It is used 99 * to store host state that needs to be saved when we enter a guest 100 * and restored when we exit, but isn't specific to any particular 101 * guest or vcpu. It also has some scratch fields used by the guest 102 * exit code. 103 */ 104 struct kvmppc_host_state { 105 ulong host_r1; 106 ulong host_r2; 107 ulong host_msr; 108 ulong vmhandler; 109 ulong scratch0; 110 ulong scratch1; 111 ulong scratch2; 112 u8 in_guest; 113 u8 restore_hid5; 114 u8 napping; 115 116 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 117 u8 hwthread_req; 118 u8 hwthread_state; 119 u8 host_ipi; 120 u8 ptid; /* thread number within subcore when split */ 121 u8 tid; /* thread number within whole core */ 122 u8 fake_suspend; 123 struct kvm_vcpu *kvm_vcpu; 124 struct kvmppc_vcore *kvm_vcore; 125 void __iomem *xics_phys; 126 void __iomem *xive_tima_phys; 127 void __iomem *xive_tima_virt; 128 u32 saved_xirr; 129 u64 dabr; 130 u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */ 131 u32 host_pmc[8]; 132 u64 host_purr; 133 u64 host_spurr; 134 u64 host_dscr; 135 u64 dec_expires; 136 struct kvm_split_mode *kvm_split_mode; 137 #endif 138 #ifdef CONFIG_PPC_BOOK3S_64 139 u64 cfar; 140 u64 ppr; 141 u64 host_fscr; 142 #endif 143 }; 144 145 struct kvmppc_book3s_shadow_vcpu { 146 bool in_use; 147 ulong gpr[14]; 148 u32 cr; 149 ulong xer; 150 ulong ctr; 151 ulong lr; 152 ulong pc; 153 154 ulong shadow_srr1; 155 ulong fault_dar; 156 u32 fault_dsisr; 157 u32 last_inst; 158 159 #ifdef CONFIG_PPC_BOOK3S_32 160 u32 sr[16]; /* Guest SRs */ 161 162 struct kvmppc_host_state hstate; 163 #endif 164 165 #ifdef CONFIG_PPC_BOOK3S_64 166 u8 slb_max; /* highest used guest slb entry */ 167 struct { 168 u64 esid; 169 u64 vsid; 170 } slb[64]; /* guest SLB */ 171 u64 shadow_fscr; 172 #endif 173 }; 174 175 #endif /*__ASSEMBLY__ */ 176 177 /* Values for kvm_state */ 178 #define KVM_HWTHREAD_IN_KERNEL 0 179 #define KVM_HWTHREAD_IN_IDLE 1 180 #define KVM_HWTHREAD_IN_KVM 2 181 182 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */ 183