[mirror_qemu.git] / trace / mem-internal.h

/*
 * Helper functions for guest memory tracing
 *
 * Copyright (C) 2016 Lluís 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 */
Commit	Line	Data
	1	/*
	2	* Helper functions for guest memory tracing
	3	*
	4	* Copyright (C) 2016 Lluís Vilanova <vilanova@ac.upc.edu>
	5	*
	6	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	7	* See the COPYING file in the top-level directory.
	8	*/
	9
	10	#ifndef TRACE__MEM_INTERNAL_H
	11	#define TRACE__MEM_INTERNAL_H
	12
	13	#define TRACE_MEM_SZ_SHIFT_MASK 0xf /* size shift mask */
	14	#define TRACE_MEM_SE (1ULL << 4) /* sign extended (y/n) */
	15	#define TRACE_MEM_BE (1ULL << 5) /* big endian (y/n) */
	16	#define TRACE_MEM_ST (1ULL << 6) /* store (y/n) */
	17	#define TRACE_MEM_MMU_SHIFT 8 /* mmu idx */
	18
	19	static inline uint16_t trace_mem_build_info(
	20	int size_shift, bool sign_extend, MemOp endianness,
	21	bool store, unsigned int mmu_idx)
	22	{
	23	uint16_t res;
	24
	25	res = size_shift & TRACE_MEM_SZ_SHIFT_MASK;
	26	if (sign_extend) {
	27	res \|= TRACE_MEM_SE;
	28	}
	29	if (endianness == MO_BE) {
	30	res \|= TRACE_MEM_BE;
	31	}
	32	if (store) {
	33	res \|= TRACE_MEM_ST;
	34	}
	35	#ifdef CONFIG_SOFTMMU
	36	res \|= mmu_idx << TRACE_MEM_MMU_SHIFT;
	37	#endif
	38	return res;
	39	}
	40
	41	static inline uint16_t trace_mem_get_info(MemOp op,
	42	unsigned int mmu_idx,
	43	bool store)
	44	{
	45	return trace_mem_build_info(op & MO_SIZE, !!(op & MO_SIGN),
	46	op & MO_BSWAP, store,
	47	mmu_idx);
	48	}
	49
	50	#endif /* TRACE__MEM_INTERNAL_H */