/* * Helper functions for guest memory tracing * * Copyright (C) 2016 LluĂs Vilanova <vilanova@ac.upc.edu> * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. */ #ifndef TRACE__MEM_INTERNAL_H #define TRACE__MEM_INTERNAL_H #define TRACE_MEM_SZ_SHIFT_MASK 0xf /* size shift mask */ #define TRACE_MEM_SE (1ULL << 4) /* sign extended (y/n) */ #define TRACE_MEM_BE (1ULL << 5) /* big endian (y/n) */ #define TRACE_MEM_ST (1ULL << 6) /* store (y/n) */ #define TRACE_MEM_MMU_SHIFT 8 /* mmu idx */ static inline uint16_t trace_mem_build_info( int size_shift, bool sign_extend, MemOp endianness, bool store, unsigned int mmu_idx) { uint16_t res; res = size_shift & TRACE_MEM_SZ_SHIFT_MASK; if (sign_extend) { res |= TRACE_MEM_SE; } if (endianness == MO_BE) { res |= TRACE_MEM_BE; } if (store) { res |= TRACE_MEM_ST; } #ifdef CONFIG_SOFTMMU res |= mmu_idx << TRACE_MEM_MMU_SHIFT; #endif return res; } static inline uint16_t trace_mem_get_info(MemOp op, unsigned int mmu_idx, bool store) { return trace_mem_build_info(op & MO_SIZE, !!(op & MO_SIGN), op & MO_BSWAP, store, mmu_idx); } #endif /* TRACE__MEM_INTERNAL_H */