The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * common defines for all CPUs |
| 3 | * |
| 4 | * Copyright (c) 2003 Fabrice Bellard |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
David 'Digit' Turner | 9251866 | 2010-05-10 23:26:01 -0700 | [diff] [blame] | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 18 | */ |
| 19 | #ifndef CPU_DEFS_H |
| 20 | #define CPU_DEFS_H |
| 21 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 22 | #ifndef NEED_CPU_H |
| 23 | #error cpu.h included from common code |
| 24 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 25 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 26 | #include "config.h" |
| 27 | #include <setjmp.h> |
| 28 | #include <inttypes.h> |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 29 | #include <signal.h> |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 30 | #include "osdep.h" |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 31 | #include "qemu-queue.h" |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 32 | #include "targphys.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 33 | |
| 34 | #ifndef TARGET_LONG_BITS |
| 35 | #error TARGET_LONG_BITS must be defined before including this header |
| 36 | #endif |
| 37 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 38 | #define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8) |
| 39 | |
| 40 | /* target_ulong is the type of a virtual address */ |
| 41 | #if TARGET_LONG_SIZE == 4 |
| 42 | typedef int32_t target_long; |
| 43 | typedef uint32_t target_ulong; |
| 44 | #define TARGET_FMT_lx "%08x" |
| 45 | #define TARGET_FMT_ld "%d" |
| 46 | #define TARGET_FMT_lu "%u" |
| 47 | #elif TARGET_LONG_SIZE == 8 |
| 48 | typedef int64_t target_long; |
| 49 | typedef uint64_t target_ulong; |
| 50 | #define TARGET_FMT_lx "%016" PRIx64 |
| 51 | #define TARGET_FMT_ld "%" PRId64 |
| 52 | #define TARGET_FMT_lu "%" PRIu64 |
| 53 | #else |
| 54 | #error TARGET_LONG_SIZE undefined |
| 55 | #endif |
| 56 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 57 | #define HOST_LONG_SIZE (HOST_LONG_BITS / 8) |
| 58 | |
| 59 | #define EXCP_INTERRUPT 0x10000 /* async interruption */ |
| 60 | #define EXCP_HLT 0x10001 /* hlt instruction reached */ |
| 61 | #define EXCP_DEBUG 0x10002 /* cpu stopped after a breakpoint or singlestep */ |
| 62 | #define EXCP_HALTED 0x10003 /* cpu is halted (waiting for external event) */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 63 | |
| 64 | #define TB_JMP_CACHE_BITS 12 |
| 65 | #define TB_JMP_CACHE_SIZE (1 << TB_JMP_CACHE_BITS) |
| 66 | |
| 67 | /* Only the bottom TB_JMP_PAGE_BITS of the jump cache hash bits vary for |
| 68 | addresses on the same page. The top bits are the same. This allows |
| 69 | TLB invalidation to quickly clear a subset of the hash table. */ |
| 70 | #define TB_JMP_PAGE_BITS (TB_JMP_CACHE_BITS / 2) |
| 71 | #define TB_JMP_PAGE_SIZE (1 << TB_JMP_PAGE_BITS) |
| 72 | #define TB_JMP_ADDR_MASK (TB_JMP_PAGE_SIZE - 1) |
| 73 | #define TB_JMP_PAGE_MASK (TB_JMP_CACHE_SIZE - TB_JMP_PAGE_SIZE) |
| 74 | |
David Turner | 5fbe340 | 2010-09-10 14:31:22 +0200 | [diff] [blame] | 75 | #if !defined(CONFIG_USER_ONLY) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 76 | #define CPU_TLB_BITS 8 |
| 77 | #define CPU_TLB_SIZE (1 << CPU_TLB_BITS) |
| 78 | |
David Turner | 5fbe340 | 2010-09-10 14:31:22 +0200 | [diff] [blame] | 79 | #if HOST_LONG_BITS == 32 && TARGET_LONG_BITS == 32 |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 80 | #define CPU_TLB_ENTRY_BITS 4 |
| 81 | #else |
| 82 | #define CPU_TLB_ENTRY_BITS 5 |
| 83 | #endif |
| 84 | |
| 85 | typedef struct CPUTLBEntry { |
| 86 | /* bit TARGET_LONG_BITS to TARGET_PAGE_BITS : virtual address |
| 87 | bit TARGET_PAGE_BITS-1..4 : Nonzero for accesses that should not |
| 88 | go directly to ram. |
| 89 | bit 3 : indicates that the entry is invalid |
| 90 | bit 2..0 : zero |
| 91 | */ |
| 92 | target_ulong addr_read; |
| 93 | target_ulong addr_write; |
| 94 | target_ulong addr_code; |
David Turner | 5fbe340 | 2010-09-10 14:31:22 +0200 | [diff] [blame] | 95 | /* Addend to virtual address to get host address. IO accesses |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 96 | use the corresponding iotlb value. */ |
David 'Digit' Turner | d9b6cb9 | 2010-10-20 19:07:28 +0200 | [diff] [blame] | 97 | size_t addend; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 98 | /* padding to get a power of two size */ |
David 'Digit' Turner | d9b6cb9 | 2010-10-20 19:07:28 +0200 | [diff] [blame] | 99 | uint8_t dummy[(1 << CPU_TLB_ENTRY_BITS) - |
| 100 | (sizeof(target_ulong) * 3 + |
| 101 | ((-sizeof(target_ulong) * 3) & (sizeof(size_t) - 1)) + |
| 102 | sizeof(size_t))]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 103 | } CPUTLBEntry; |
| 104 | |
David Turner | 5fbe340 | 2010-09-10 14:31:22 +0200 | [diff] [blame] | 105 | extern int CPUTLBEntry_wrong_size[sizeof(CPUTLBEntry) == (1 << CPU_TLB_ENTRY_BITS) ? 1 : -1]; |
| 106 | |
| 107 | #define CPU_COMMON_TLB \ |
| 108 | /* The meaning of the MMU modes is defined in the target code. */ \ |
| 109 | CPUTLBEntry tlb_table[NB_MMU_MODES][CPU_TLB_SIZE]; \ |
| 110 | target_phys_addr_t iotlb[NB_MMU_MODES][CPU_TLB_SIZE]; \ |
| 111 | target_ulong tlb_flush_addr; \ |
| 112 | target_ulong tlb_flush_mask; |
| 113 | |
| 114 | #else |
| 115 | |
| 116 | #define CPU_COMMON_TLB |
| 117 | |
| 118 | #endif |
| 119 | |
| 120 | |
David 'Digit' Turner | 20894ae | 2010-05-10 17:07:36 -0700 | [diff] [blame] | 121 | #ifdef HOST_WORDS_BIGENDIAN |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 122 | typedef struct icount_decr_u16 { |
| 123 | uint16_t high; |
| 124 | uint16_t low; |
| 125 | } icount_decr_u16; |
| 126 | #else |
| 127 | typedef struct icount_decr_u16 { |
| 128 | uint16_t low; |
| 129 | uint16_t high; |
| 130 | } icount_decr_u16; |
| 131 | #endif |
| 132 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 133 | struct kvm_run; |
| 134 | struct KVMState; |
David Turner | 5fbe340 | 2010-09-10 14:31:22 +0200 | [diff] [blame] | 135 | struct qemu_work_item; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 136 | |
| 137 | typedef struct CPUBreakpoint { |
| 138 | target_ulong pc; |
| 139 | int flags; /* BP_* */ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 140 | QTAILQ_ENTRY(CPUBreakpoint) entry; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 141 | } CPUBreakpoint; |
| 142 | |
| 143 | typedef struct CPUWatchpoint { |
| 144 | target_ulong vaddr; |
| 145 | target_ulong len_mask; |
| 146 | int flags; /* BP_* */ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 147 | QTAILQ_ENTRY(CPUWatchpoint) entry; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 148 | } CPUWatchpoint; |
| 149 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 150 | #define CPU_TEMP_BUF_NLONGS 128 |
| 151 | #define CPU_COMMON \ |
| 152 | struct TranslationBlock *current_tb; /* currently executing TB */ \ |
| 153 | /* soft mmu support */ \ |
| 154 | /* in order to avoid passing too many arguments to the MMIO \ |
| 155 | helpers, we store some rarely used information in the CPU \ |
| 156 | context) */ \ |
| 157 | unsigned long mem_io_pc; /* host pc at which the memory was \ |
| 158 | accessed */ \ |
| 159 | target_ulong mem_io_vaddr; /* target virtual addr at which the \ |
| 160 | memory was accessed */ \ |
| 161 | uint32_t halted; /* Nonzero if the CPU is in suspend state */ \ |
| 162 | uint32_t interrupt_request; \ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 163 | volatile sig_atomic_t exit_request; \ |
David Turner | 5fbe340 | 2010-09-10 14:31:22 +0200 | [diff] [blame] | 164 | CPU_COMMON_TLB \ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 165 | struct TranslationBlock *tb_jmp_cache[TB_JMP_CACHE_SIZE]; \ |
| 166 | /* buffer for temporaries in the code generator */ \ |
| 167 | long temp_buf[CPU_TEMP_BUF_NLONGS]; \ |
| 168 | \ |
| 169 | int64_t icount_extra; /* Instructions until next timer event. */ \ |
| 170 | /* Number of cycles left, with interrupt flag in high bit. \ |
| 171 | This allows a single read-compare-cbranch-write sequence to test \ |
| 172 | for both decrementer underflow and exceptions. */ \ |
| 173 | union { \ |
| 174 | uint32_t u32; \ |
| 175 | icount_decr_u16 u16; \ |
| 176 | } icount_decr; \ |
| 177 | uint32_t can_do_io; /* nonzero if memory mapped IO is safe. */ \ |
| 178 | \ |
| 179 | /* from this point: preserved by CPU reset */ \ |
| 180 | /* ice debug support */ \ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 181 | QTAILQ_HEAD(breakpoints_head, CPUBreakpoint) breakpoints; \ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 182 | int singlestep_enabled; \ |
| 183 | \ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 184 | QTAILQ_HEAD(watchpoints_head, CPUWatchpoint) watchpoints; \ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 185 | CPUWatchpoint *watchpoint_hit; \ |
| 186 | \ |
| 187 | struct GDBRegisterState *gdb_regs; \ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 188 | \ |
| 189 | /* Core interrupt code */ \ |
| 190 | jmp_buf jmp_env; \ |
| 191 | int exception_index; \ |
| 192 | \ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 193 | CPUState *next_cpu; /* next CPU sharing TB cache */ \ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 194 | int cpu_index; /* CPU index (informative) */ \ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 195 | uint32_t host_tid; /* host thread ID */ \ |
| 196 | int numa_node; /* NUMA node this cpu is belonging to */ \ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 197 | int nr_cores; /* number of cores within this CPU package */ \ |
| 198 | int nr_threads;/* number of threads within this CPU */ \ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 199 | int running; /* Nonzero if cpu is currently running(usermode). */ \ |
| 200 | /* user data */ \ |
| 201 | void *opaque; \ |
| 202 | \ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 203 | uint32_t created; \ |
David Turner | 5fbe340 | 2010-09-10 14:31:22 +0200 | [diff] [blame] | 204 | uint32_t stop; /* Stop request */ \ |
| 205 | uint32_t stopped; /* Artificially stopped */ \ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 206 | struct QemuThread *thread; \ |
| 207 | struct QemuCond *halt_cond; \ |
David Turner | 5fbe340 | 2010-09-10 14:31:22 +0200 | [diff] [blame] | 208 | struct qemu_work_item *queued_work_first, *queued_work_last; \ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 209 | const char *cpu_model_str; \ |
| 210 | struct KVMState *kvm_state; \ |
| 211 | struct kvm_run *kvm_run; \ |
David 'Digit' Turner | 9251866 | 2010-05-10 23:26:01 -0700 | [diff] [blame] | 212 | int kvm_fd; \ |
| 213 | int kvm_vcpu_dirty; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 214 | |
| 215 | #endif |