dcdaadb6ea
The event is described in "trace-events". Note that the "MO_AMASK" flag is not traced, since it does not seem to affect the visible semantics of instructions. [s/inline inline/inline/ to fix clang build. --Stefan] Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 146549350711.18437.726780393247474362.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
210 lines
5.9 KiB
C
210 lines
5.9 KiB
C
/*
|
|
* Software MMU support
|
|
*
|
|
* Generate inline load/store functions for one MMU mode and data
|
|
* size.
|
|
*
|
|
* Generate a store function as well as signed and unsigned loads.
|
|
*
|
|
* Not used directly but included from cpu_ldst.h.
|
|
*
|
|
* Copyright (c) 2003 Fabrice Bellard
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#if !defined(SOFTMMU_CODE_ACCESS)
|
|
#include "trace.h"
|
|
#endif
|
|
|
|
#include "trace/mem.h"
|
|
|
|
#if DATA_SIZE == 8
|
|
#define SUFFIX q
|
|
#define USUFFIX q
|
|
#define DATA_TYPE uint64_t
|
|
#define SHIFT 3
|
|
#elif DATA_SIZE == 4
|
|
#define SUFFIX l
|
|
#define USUFFIX l
|
|
#define DATA_TYPE uint32_t
|
|
#define SHIFT 2
|
|
#elif DATA_SIZE == 2
|
|
#define SUFFIX w
|
|
#define USUFFIX uw
|
|
#define DATA_TYPE uint16_t
|
|
#define DATA_STYPE int16_t
|
|
#define SHIFT 1
|
|
#elif DATA_SIZE == 1
|
|
#define SUFFIX b
|
|
#define USUFFIX ub
|
|
#define DATA_TYPE uint8_t
|
|
#define DATA_STYPE int8_t
|
|
#define SHIFT 0
|
|
#else
|
|
#error unsupported data size
|
|
#endif
|
|
|
|
#if DATA_SIZE == 8
|
|
#define RES_TYPE uint64_t
|
|
#else
|
|
#define RES_TYPE uint32_t
|
|
#endif
|
|
|
|
#ifdef SOFTMMU_CODE_ACCESS
|
|
#define ADDR_READ addr_code
|
|
#define MMUSUFFIX _cmmu
|
|
#define URETSUFFIX SUFFIX
|
|
#define SRETSUFFIX SUFFIX
|
|
#else
|
|
#define ADDR_READ addr_read
|
|
#define MMUSUFFIX _mmu
|
|
#define URETSUFFIX USUFFIX
|
|
#define SRETSUFFIX glue(s, SUFFIX)
|
|
#endif
|
|
|
|
/* generic load/store macros */
|
|
|
|
static inline RES_TYPE
|
|
glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
|
|
target_ulong ptr,
|
|
uintptr_t retaddr)
|
|
{
|
|
int page_index;
|
|
RES_TYPE res;
|
|
target_ulong addr;
|
|
int mmu_idx;
|
|
TCGMemOpIdx oi;
|
|
|
|
#if !defined(SOFTMMU_CODE_ACCESS)
|
|
trace_guest_mem_before_exec(
|
|
ENV_GET_CPU(env), ptr,
|
|
trace_mem_build_info(SHIFT, false, MO_TE, false));
|
|
#endif
|
|
|
|
addr = ptr;
|
|
page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
|
mmu_idx = CPU_MMU_INDEX;
|
|
if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
|
|
(addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
|
|
oi = make_memop_idx(SHIFT, mmu_idx);
|
|
res = glue(glue(helper_ret_ld, URETSUFFIX), MMUSUFFIX)(env, addr,
|
|
oi, retaddr);
|
|
} else {
|
|
uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|
res = glue(glue(ld, USUFFIX), _p)((uint8_t *)hostaddr);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static inline RES_TYPE
|
|
glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
|
|
{
|
|
return glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(env, ptr, 0);
|
|
}
|
|
|
|
#if DATA_SIZE <= 2
|
|
static inline int
|
|
glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
|
|
target_ulong ptr,
|
|
uintptr_t retaddr)
|
|
{
|
|
int res, page_index;
|
|
target_ulong addr;
|
|
int mmu_idx;
|
|
TCGMemOpIdx oi;
|
|
|
|
#if !defined(SOFTMMU_CODE_ACCESS)
|
|
trace_guest_mem_before_exec(
|
|
ENV_GET_CPU(env), ptr,
|
|
trace_mem_build_info(SHIFT, true, MO_TE, false));
|
|
#endif
|
|
|
|
addr = ptr;
|
|
page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
|
mmu_idx = CPU_MMU_INDEX;
|
|
if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
|
|
(addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
|
|
oi = make_memop_idx(SHIFT, mmu_idx);
|
|
res = (DATA_STYPE)glue(glue(helper_ret_ld, SRETSUFFIX),
|
|
MMUSUFFIX)(env, addr, oi, retaddr);
|
|
} else {
|
|
uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|
res = glue(glue(lds, SUFFIX), _p)((uint8_t *)hostaddr);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static inline int
|
|
glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
|
|
{
|
|
return glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(env, ptr, 0);
|
|
}
|
|
#endif
|
|
|
|
#ifndef SOFTMMU_CODE_ACCESS
|
|
|
|
/* generic store macro */
|
|
|
|
static inline void
|
|
glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
|
|
target_ulong ptr,
|
|
RES_TYPE v, uintptr_t retaddr)
|
|
{
|
|
int page_index;
|
|
target_ulong addr;
|
|
int mmu_idx;
|
|
TCGMemOpIdx oi;
|
|
|
|
#if !defined(SOFTMMU_CODE_ACCESS)
|
|
trace_guest_mem_before_exec(
|
|
ENV_GET_CPU(env), ptr,
|
|
trace_mem_build_info(SHIFT, false, MO_TE, true));
|
|
#endif
|
|
|
|
addr = ptr;
|
|
page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
|
mmu_idx = CPU_MMU_INDEX;
|
|
if (unlikely(env->tlb_table[mmu_idx][page_index].addr_write !=
|
|
(addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
|
|
oi = make_memop_idx(SHIFT, mmu_idx);
|
|
glue(glue(helper_ret_st, SUFFIX), MMUSUFFIX)(env, addr, v, oi,
|
|
retaddr);
|
|
} else {
|
|
uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|
glue(glue(st, SUFFIX), _p)((uint8_t *)hostaddr, v);
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr,
|
|
RES_TYPE v)
|
|
{
|
|
glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(env, ptr, v, 0);
|
|
}
|
|
|
|
#endif /* !SOFTMMU_CODE_ACCESS */
|
|
|
|
#undef RES_TYPE
|
|
#undef DATA_TYPE
|
|
#undef DATA_STYPE
|
|
#undef SUFFIX
|
|
#undef USUFFIX
|
|
#undef DATA_SIZE
|
|
#undef MMUSUFFIX
|
|
#undef ADDR_READ
|
|
#undef URETSUFFIX
|
|
#undef SRETSUFFIX
|
|
#undef SHIFT
|