diff options
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/exec.c b/exec.c index e735c17987..e0d2297e61 100644 --- a/exec.c +++ b/exec.c @@ -4499,6 +4499,32 @@ void dump_exec_info(FILE *f, fprintf_function cpu_fprintf) tcg_dump_info(f, cpu_fprintf); } +/* NOTE: this function can trigger an exception */ +/* NOTE2: the returned address is not exactly the physical address: it + is the offset relative to phys_ram_base */ +tb_page_addr_t get_page_addr_code(CPUState *env1, target_ulong addr) +{ + int mmu_idx, page_index, pd; + void *p; + + page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); + mmu_idx = cpu_mmu_index(env1); + if (unlikely(env1->tlb_table[mmu_idx][page_index].addr_code != + (addr & TARGET_PAGE_MASK))) { + ldub_code(addr); + } + pd = env1->tlb_table[mmu_idx][page_index].addr_code & ~TARGET_PAGE_MASK; + if (pd != IO_MEM_RAM && pd != IO_MEM_ROM && !(pd & IO_MEM_ROMD)) { +#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SPARC) + cpu_unassigned_access(env1, addr, 0, 1, 0, 4); +#else + cpu_abort(env1, "Trying to execute code outside RAM or ROM at 0x" TARGET_FMT_lx "\n", addr); +#endif + } + p = (void *)((uintptr_t)addr + env1->tlb_table[mmu_idx][page_index].addend); + return qemu_ram_addr_from_host_nofail(p); +} + #define MMUSUFFIX _cmmu #undef GETPC #define GETPC() NULL |