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exec: Introduce helper to set dirty flags. 

This new helper/hook is used in the next patch to add an extra call in a single
place.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Anthony PERARD 2012-10-03 13:49:05 +00:00 committed by Stefano Stabellini
parent 910b38e4dc
commit 51d7a9eb2b
1 changed files with 17 additions and 35 deletions
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52
exec.c
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@ -3417,6 +3417,18 @@ int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr,
} }
#else #else
static void invalidate_and_set_dirty(target_phys_addr_t addr,
target_phys_addr_t length)
{
if (!cpu_physical_memory_is_dirty(addr)) {
/* invalidate code */
tb_invalidate_phys_page_range(addr, addr + length, 0);
/* set dirty bit */
cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG));
}
}
void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
int len, int is_write) int len, int is_write)
{ {
@ -3462,13 +3474,7 @@ void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
/* RAM case */ /* RAM case */
ptr = qemu_get_ram_ptr(addr1); ptr = qemu_get_ram_ptr(addr1);
memcpy(ptr, buf, l); memcpy(ptr, buf, l);
if (!cpu_physical_memory_is_dirty(addr1)) { invalidate_and_set_dirty(addr1, l);
/* invalidate code */
tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
/* set dirty bit */
cpu_physical_memory_set_dirty_flags(
addr1, (0xff & ~CODE_DIRTY_FLAG));
}
qemu_put_ram_ptr(ptr); qemu_put_ram_ptr(ptr);
} }
} else { } else {
@ -3534,13 +3540,7 @@ void cpu_physical_memory_write_rom(target_phys_addr_t addr,
/* ROM/RAM case */ /* ROM/RAM case */
ptr = qemu_get_ram_ptr(addr1); ptr = qemu_get_ram_ptr(addr1);
memcpy(ptr, buf, l); memcpy(ptr, buf, l);
if (!cpu_physical_memory_is_dirty(addr1)) { invalidate_and_set_dirty(addr1, l);
/* invalidate code */
tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
/* set dirty bit */
cpu_physical_memory_set_dirty_flags(
addr1, (0xff & ~CODE_DIRTY_FLAG));
}
qemu_put_ram_ptr(ptr); qemu_put_ram_ptr(ptr);
} }
len -= l; len -= l;
@ -3666,13 +3666,7 @@ void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
l = TARGET_PAGE_SIZE; l = TARGET_PAGE_SIZE;
if (l > access_len) if (l > access_len)
l = access_len; l = access_len;
if (!cpu_physical_memory_is_dirty(addr1)) { invalidate_and_set_dirty(addr1, l);
/* invalidate code */
tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
/* set dirty bit */
cpu_physical_memory_set_dirty_flags(
addr1, (0xff & ~CODE_DIRTY_FLAG));
}
addr1 += l; addr1 += l;
access_len -= l; access_len -= l;
} }
@ -3978,13 +3972,7 @@ static inline void stl_phys_internal(target_phys_addr_t addr, uint32_t val,
stl_p(ptr, val); stl_p(ptr, val);
break; break;
} }
if (!cpu_physical_memory_is_dirty(addr1)) { invalidate_and_set_dirty(addr1, 4);
/* invalidate code */
tb_invalidate_phys_page_range(addr1, addr1 + 4, 0);
/* set dirty bit */
cpu_physical_memory_set_dirty_flags(addr1,
(0xff & ~CODE_DIRTY_FLAG));
}
} }
} }
@ -4051,13 +4039,7 @@ static inline void stw_phys_internal(target_phys_addr_t addr, uint32_t val,
stw_p(ptr, val); stw_p(ptr, val);
break; break;
} }
if (!cpu_physical_memory_is_dirty(addr1)) { invalidate_and_set_dirty(addr1, 2);
/* invalidate code */
tb_invalidate_phys_page_range(addr1, addr1 + 2, 0);
/* set dirty bit */
cpu_physical_memory_set_dirty_flags(addr1,
(0xff & ~CODE_DIRTY_FLAG));
}
} }
} }