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memory: Add offset_in_region to flatview_cb arguments 

The function flatview_for_each_range() calls a callback for each
range in a FlatView.  Currently the callback gets the start and
length of the range and the MemoryRegion involved, but not the offset
within the MemoryRegion.  Add this to the callback's arguments; we're
going to want it for a new use in the next commit.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210318174823.18066-4-peter.maydell@linaro.org
master
Peter Maydell 2021-03-18 17:48:21 +00:00
parent a5e32ec1ed
commit b3566001d4
3 changed files with 9 additions and 2 deletions
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2
include/exec/memory.h
View File

@ -782,6 +782,7 @@ static inline FlatView *address_space_to_flatview(AddressSpace *as)
* @start: start address of the range within the FlatView
* @len: length of the range in bytes
* @mr: MemoryRegion covering this range
* @offset_in_region: offset of the first byte of the range within @mr
* @opaque: data pointer passed to flatview_for_each_range()
*
* Returns: true to stop the iteration, false to keep going.
@ -789,6 +790,7 @@ static inline FlatView *address_space_to_flatview(AddressSpace *as)
typedef bool (*flatview_cb)(Int128 start,
Int128 len,
const MemoryRegion *mr,
hwaddr offset_in_region,
void *opaque);
/**

4
softmmu/memory.c
View File

@ -671,8 +671,10 @@ void flatview_for_each_range(FlatView *fv, flatview_cb cb , void *opaque)
assert(cb);
FOR_EACH_FLAT_RANGE(fr, fv) {
if (cb(fr->addr.start, fr->addr.size, fr->mr, opaque))
if (cb(fr->addr.start, fr->addr.size, fr->mr,
fr->offset_in_region, opaque)) {
break;
}
}
}

5
tests/qtest/fuzz/generic_fuzz.c
View File

@ -99,7 +99,10 @@ struct get_io_cb_info {
};
static bool get_io_address_cb(Int128 start, Int128 size,
const MemoryRegion *mr, void *opaque) {
const MemoryRegion *mr,
hwaddr offset_in_region,
void *opaque)
{
struct get_io_cb_info *info = opaque;
if (g_hash_table_lookup(fuzzable_memoryregions, mr)) {
if (info->index == 0) {