Mailing List Archive

[PATCH V3 3/5] 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>
---
exec.c | 52 +++++++++++++++++-----------------------------------
1 file changed, 17 insertions(+), 35 deletions(-)

diff --git a/exec.c b/exec.c
index f22e9e6..209ac1c 100644
--- a/exec.c
+++ b/exec.c
@@ -3419,6 +3419,18 @@ int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr,
}

#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,
int len, int is_write)
{
@@ -3464,13 +3476,7 @@ void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
/* RAM case */
ptr = qemu_get_ram_ptr(addr1);
memcpy(ptr, buf, l);
- if (!cpu_physical_memory_is_dirty(addr1)) {
- /* 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));
- }
+ invalidate_and_set_dirty(addr1, l);
qemu_put_ram_ptr(ptr);
}
} else {
@@ -3536,13 +3542,7 @@ void cpu_physical_memory_write_rom(target_phys_addr_t addr,
/* ROM/RAM case */
ptr = qemu_get_ram_ptr(addr1);
memcpy(ptr, buf, l);
- if (!cpu_physical_memory_is_dirty(addr1)) {
- /* 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));
- }
+ invalidate_and_set_dirty(addr1, l);
qemu_put_ram_ptr(ptr);
}
len -= l;
@@ -3668,13 +3668,7 @@ void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
l = TARGET_PAGE_SIZE;
if (l > access_len)
l = access_len;
- if (!cpu_physical_memory_is_dirty(addr1)) {
- /* 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));
- }
+ invalidate_and_set_dirty(addr1, l);
addr1 += l;
access_len -= l;
}
@@ -3980,13 +3974,7 @@ static inline void stl_phys_internal(target_phys_addr_t addr, uint32_t val,
stl_p(ptr, val);
break;
}
- if (!cpu_physical_memory_is_dirty(addr1)) {
- /* 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));
- }
+ invalidate_and_set_dirty(addr1, 4);
}
}

@@ -4053,13 +4041,7 @@ static inline void stw_phys_internal(target_phys_addr_t addr, uint32_t val,
stw_p(ptr, val);
break;
}
- if (!cpu_physical_memory_is_dirty(addr1)) {
- /* 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));
- }
+ invalidate_and_set_dirty(addr1, 2);
}
}

--
Anthony PERARD


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Re: [PATCH V3 3/5] exec: Introduce helper to set dirty flags. [ In reply to ]
On 09/20/2012 02:12 PM, Anthony PERARD wrote:
> This new helper/hook is used in the next patch to add an extra call in a single
> place.
>

Reviewed-by: Avi Kivity <avi@redhat.com>


--
error compiling committee.c: too many arguments to function

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