diff options
Diffstat (limited to 'qemu/include/exec/cpu_ldst.h')
| -rw-r--r-- | qemu/include/exec/cpu_ldst.h | 441 |
1 files changed, 0 insertions, 441 deletions
diff --git a/qemu/include/exec/cpu_ldst.h b/qemu/include/exec/cpu_ldst.h deleted file mode 100644 index b573df53b..000000000 --- a/qemu/include/exec/cpu_ldst.h +++ /dev/null @@ -1,441 +0,0 @@ -/* - * Software MMU support - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - * - */ - -/* - * Generate inline load/store functions for all MMU modes (typically - * at least _user and _kernel) as well as _data versions, for all data - * sizes. - * - * Used by target op helpers. - * - * The syntax for the accessors is: - * - * load: cpu_ld{sign}{size}_{mmusuffix}(env, ptr) - * - * store: cpu_st{sign}{size}_{mmusuffix}(env, ptr, val) - * - * sign is: - * (empty): for 32 and 64 bit sizes - * u : unsigned - * s : signed - * - * size is: - * b: 8 bits - * w: 16 bits - * l: 32 bits - * q: 64 bits - * - * mmusuffix is one of the generic suffixes "data" or "code", or - * (for softmmu configs) a target-specific MMU mode suffix as defined - * in target cpu.h. - */ -#ifndef CPU_LDST_H -#define CPU_LDST_H - -#if defined(CONFIG_USER_ONLY) -/* All direct uses of g2h and h2g need to go away for usermode softmmu. */ -#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + guest_base)) - -#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS -#define h2g_valid(x) 1 -#else -#define h2g_valid(x) ({ \ - unsigned long __guest = (unsigned long)(x) - guest_base; \ - (__guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) && \ - (!reserved_va || (__guest < reserved_va)); \ -}) -#endif - -#define h2g_nocheck(x) ({ \ - unsigned long __ret = (unsigned long)(x) - guest_base; \ - (abi_ulong)__ret; \ -}) - -#define h2g(x) ({ \ - /* Check if given address fits target address space */ \ - assert(h2g_valid(x)); \ - h2g_nocheck(x); \ -}) - -#endif - -#if defined(CONFIG_USER_ONLY) - -/* In user-only mode we provide only the _code and _data accessors. */ - -#define MEMSUFFIX _data -#define DATA_SIZE 1 -#include "exec/cpu_ldst_useronly_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_useronly_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_useronly_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_useronly_template.h" -#undef MEMSUFFIX - -#define MEMSUFFIX _code -#define CODE_ACCESS -#define DATA_SIZE 1 -#include "exec/cpu_ldst_useronly_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_useronly_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_useronly_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_useronly_template.h" -#undef MEMSUFFIX -#undef CODE_ACCESS - -#else - -/* The memory helpers for tcg-generated code need tcg_target_long etc. */ -#include "tcg.h" - -#ifdef MMU_MODE0_SUFFIX -#define CPU_MMU_INDEX 0 -#define MEMSUFFIX MMU_MODE0_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif - -#if (NB_MMU_MODES >= 2) && defined(MMU_MODE1_SUFFIX) -#define CPU_MMU_INDEX 1 -#define MEMSUFFIX MMU_MODE1_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif - -#if (NB_MMU_MODES >= 3) && defined(MMU_MODE2_SUFFIX) - -#define CPU_MMU_INDEX 2 -#define MEMSUFFIX MMU_MODE2_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 3) */ - -#if (NB_MMU_MODES >= 4) && defined(MMU_MODE3_SUFFIX) - -#define CPU_MMU_INDEX 3 -#define MEMSUFFIX MMU_MODE3_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 4) */ - -#if (NB_MMU_MODES >= 5) && defined(MMU_MODE4_SUFFIX) - -#define CPU_MMU_INDEX 4 -#define MEMSUFFIX MMU_MODE4_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 5) */ - -#if (NB_MMU_MODES >= 6) && defined(MMU_MODE5_SUFFIX) - -#define CPU_MMU_INDEX 5 -#define MEMSUFFIX MMU_MODE5_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 6) */ - -#if (NB_MMU_MODES >= 7) && defined(MMU_MODE6_SUFFIX) - -#define CPU_MMU_INDEX 6 -#define MEMSUFFIX MMU_MODE6_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 7) */ - -#if (NB_MMU_MODES >= 8) && defined(MMU_MODE7_SUFFIX) - -#define CPU_MMU_INDEX 7 -#define MEMSUFFIX MMU_MODE7_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 8) */ - -#if (NB_MMU_MODES >= 9) && defined(MMU_MODE8_SUFFIX) - -#define CPU_MMU_INDEX 8 -#define MEMSUFFIX MMU_MODE8_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 9) */ - -#if (NB_MMU_MODES >= 10) && defined(MMU_MODE9_SUFFIX) - -#define CPU_MMU_INDEX 9 -#define MEMSUFFIX MMU_MODE9_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 10) */ - -#if (NB_MMU_MODES >= 11) && defined(MMU_MODE10_SUFFIX) - -#define CPU_MMU_INDEX 10 -#define MEMSUFFIX MMU_MODE10_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 11) */ - -#if (NB_MMU_MODES >= 12) && defined(MMU_MODE11_SUFFIX) - -#define CPU_MMU_INDEX 11 -#define MEMSUFFIX MMU_MODE11_SUFFIX -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#endif /* (NB_MMU_MODES >= 12) */ - -#if (NB_MMU_MODES > 12) -#error "NB_MMU_MODES > 12 is not supported for now" -#endif /* (NB_MMU_MODES > 12) */ - -/* these access are slower, they must be as rare as possible */ -#define CPU_MMU_INDEX (cpu_mmu_index(env, false)) -#define MEMSUFFIX _data -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" -#undef CPU_MMU_INDEX -#undef MEMSUFFIX - -#define CPU_MMU_INDEX (cpu_mmu_index(env, true)) -#define MEMSUFFIX _code -#define SOFTMMU_CODE_ACCESS - -#define DATA_SIZE 1 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 2 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 4 -#include "exec/cpu_ldst_template.h" - -#define DATA_SIZE 8 -#include "exec/cpu_ldst_template.h" - -#undef CPU_MMU_INDEX -#undef MEMSUFFIX -#undef SOFTMMU_CODE_ACCESS - -#endif /* defined(CONFIG_USER_ONLY) */ - -/** - * tlb_vaddr_to_host: - * @env: CPUArchState - * @addr: guest virtual address to look up - * @access_type: 0 for read, 1 for write, 2 for execute - * @mmu_idx: MMU index to use for lookup - * - * Look up the specified guest virtual index in the TCG softmmu TLB. - * If the TLB contains a host virtual address suitable for direct RAM - * access, then return it. Otherwise (TLB miss, TLB entry is for an - * I/O access, etc) return NULL. - * - * This is the equivalent of the initial fast-path code used by - * TCG backends for guest load and store accesses. - */ -static inline void *tlb_vaddr_to_host(CPUArchState *env, target_ulong addr, - int access_type, int mmu_idx) -{ -#if defined(CONFIG_USER_ONLY) - return g2h(vaddr); -#else - int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); - CPUTLBEntry *tlbentry = &env->tlb_table[mmu_idx][index]; - target_ulong tlb_addr; - uintptr_t haddr; - - switch (access_type) { - case 0: - tlb_addr = tlbentry->addr_read; - break; - case 1: - tlb_addr = tlbentry->addr_write; - break; - case 2: - tlb_addr = tlbentry->addr_code; - break; - default: - g_assert_not_reached(); - } - - if ((addr & TARGET_PAGE_MASK) - != (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { - /* TLB entry is for a different page */ - return NULL; - } - - if (tlb_addr & ~TARGET_PAGE_MASK) { - /* IO access */ - return NULL; - } - - haddr = addr + env->tlb_table[mmu_idx][index].addend; - return (void *)haddr; -#endif /* defined(CONFIG_USER_ONLY) */ -} - -#endif /* CPU_LDST_H */ |