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-rw-r--r--memory.c142
1 files changed, 88 insertions, 54 deletions
diff --git a/memory.c b/memory.c
index beff98c35b..30ba4a4b37 100644
--- a/memory.c
+++ b/memory.c
@@ -183,7 +183,7 @@ static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range)
{
if (view->nr == view->nr_allocated) {
view->nr_allocated = MAX(2 * view->nr, 10);
- view->ranges = qemu_realloc(view->ranges,
+ view->ranges = g_realloc(view->ranges,
view->nr_allocated * sizeof(*view->ranges));
}
memmove(view->ranges + pos + 1, view->ranges + pos,
@@ -194,7 +194,7 @@ static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range)
static void flatview_destroy(FlatView *view)
{
- qemu_free(view->ranges);
+ g_free(view->ranges);
}
static bool can_merge(FlatRange *r1, FlatRange *r2)
@@ -226,6 +226,65 @@ static void flatview_simplify(FlatView *view)
}
}
+static void memory_region_read_accessor(void *opaque,
+ target_phys_addr_t addr,
+ uint64_t *value,
+ unsigned size,
+ unsigned shift,
+ uint64_t mask)
+{
+ MemoryRegion *mr = opaque;
+ uint64_t tmp;
+
+ tmp = mr->ops->read(mr->opaque, addr, size);
+ *value |= (tmp & mask) << shift;
+}
+
+static void memory_region_write_accessor(void *opaque,
+ target_phys_addr_t addr,
+ uint64_t *value,
+ unsigned size,
+ unsigned shift,
+ uint64_t mask)
+{
+ MemoryRegion *mr = opaque;
+ uint64_t tmp;
+
+ tmp = (*value >> shift) & mask;
+ mr->ops->write(mr->opaque, addr, tmp, size);
+}
+
+static void access_with_adjusted_size(target_phys_addr_t addr,
+ uint64_t *value,
+ unsigned size,
+ unsigned access_size_min,
+ unsigned access_size_max,
+ void (*access)(void *opaque,
+ target_phys_addr_t addr,
+ uint64_t *value,
+ unsigned size,
+ unsigned shift,
+ uint64_t mask),
+ void *opaque)
+{
+ uint64_t access_mask;
+ unsigned access_size;
+ unsigned i;
+
+ if (!access_size_min) {
+ access_size_min = 1;
+ }
+ if (!access_size_max) {
+ access_size_max = 4;
+ }
+ access_size = MAX(MIN(size, access_size_max), access_size_min);
+ access_mask = -1ULL >> (64 - access_size * 8);
+ for (i = 0; i < size; i += access_size) {
+ /* FIXME: big-endian support */
+ access(opaque, addr + i, value, access_size, i * 8, access_mask);
+ }
+}
+
static void memory_region_prepare_ram_addr(MemoryRegion *mr);
static void as_memory_range_add(AddressSpace *as, FlatRange *fr)
@@ -341,7 +400,11 @@ static void memory_region_iorange_read(IORange *iorange,
}
return;
}
- *data = mr->ops->read(mr->opaque, offset, width);
+ *data = 0;
+ access_with_adjusted_size(offset, data, width,
+ mr->ops->impl.min_access_size,
+ mr->ops->impl.max_access_size,
+ memory_region_read_accessor, mr);
}
static void memory_region_iorange_write(IORange *iorange,
@@ -359,7 +422,10 @@ static void memory_region_iorange_write(IORange *iorange,
}
return;
}
- mr->ops->write(mr->opaque, offset, data, width);
+ access_with_adjusted_size(offset, &data, width,
+ mr->ops->impl.min_access_size,
+ mr->ops->impl.max_access_size,
+ memory_region_write_accessor, mr);
}
static const IORangeOps memory_region_iorange_ops = {
@@ -553,7 +619,7 @@ static void address_space_update_ioeventfds(AddressSpace *as)
fr->addr.start - fr->offset_in_region);
if (addrrange_intersects(fr->addr, tmp)) {
++ioeventfd_nb;
- ioeventfds = qemu_realloc(ioeventfds,
+ ioeventfds = g_realloc(ioeventfds,
ioeventfd_nb * sizeof(*ioeventfds));
ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i];
ioeventfds[ioeventfd_nb-1].addr = tmp;
@@ -564,7 +630,7 @@ static void address_space_update_ioeventfds(AddressSpace *as)
address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb,
as->ioeventfds, as->ioeventfd_nb);
- qemu_free(as->ioeventfds);
+ g_free(as->ioeventfds);
as->ioeventfds = ioeventfds;
as->ioeventfd_nb = ioeventfd_nb;
}
@@ -713,7 +779,7 @@ void memory_region_init(MemoryRegion *mr,
QTAILQ_INIT(&mr->subregions);
memset(&mr->subregions_link, 0, sizeof mr->subregions_link);
QTAILQ_INIT(&mr->coalesced);
- mr->name = qemu_strdup(name);
+ mr->name = g_strdup(name);
mr->dirty_log_mask = 0;
mr->ioeventfd_nb = 0;
mr->ioeventfds = NULL;
@@ -744,10 +810,7 @@ static uint32_t memory_region_read_thunk_n(void *_mr,
unsigned size)
{
MemoryRegion *mr = _mr;
- unsigned access_size, access_size_min, access_size_max;
- uint64_t access_mask;
- uint32_t data = 0, tmp;
- unsigned i;
+ uint64_t data = 0;
if (!memory_region_access_valid(mr, addr, size)) {
return -1U; /* FIXME: better signalling */
@@ -758,23 +821,10 @@ static uint32_t memory_region_read_thunk_n(void *_mr,
}
/* FIXME: support unaligned access */
-
- access_size_min = mr->ops->impl.min_access_size;
- if (!access_size_min) {
- access_size_min = 1;
- }
- access_size_max = mr->ops->impl.max_access_size;
- if (!access_size_max) {
- access_size_max = 4;
- }
- access_size = MAX(MIN(size, access_size_max), access_size_min);
- access_mask = -1ULL >> (64 - access_size * 8);
- addr += mr->offset;
- for (i = 0; i < size; i += access_size) {
- /* FIXME: big-endian support */
- tmp = mr->ops->read(mr->opaque, addr + i, access_size);
- data |= (tmp & access_mask) << (i * 8);
- }
+ access_with_adjusted_size(addr + mr->offset, &data, size,
+ mr->ops->impl.min_access_size,
+ mr->ops->impl.max_access_size,
+ memory_region_read_accessor, mr);
return data;
}
@@ -785,9 +835,6 @@ static void memory_region_write_thunk_n(void *_mr,
uint64_t data)
{
MemoryRegion *mr = _mr;
- unsigned access_size, access_size_min, access_size_max;
- uint64_t access_mask;
- unsigned i;
if (!memory_region_access_valid(mr, addr, size)) {
return; /* FIXME: better signalling */
@@ -799,23 +846,10 @@ static void memory_region_write_thunk_n(void *_mr,
}
/* FIXME: support unaligned access */
-
- access_size_min = mr->ops->impl.min_access_size;
- if (!access_size_min) {
- access_size_min = 1;
- }
- access_size_max = mr->ops->impl.max_access_size;
- if (!access_size_max) {
- access_size_max = 4;
- }
- access_size = MAX(MIN(size, access_size_max), access_size_min);
- access_mask = -1ULL >> (64 - access_size * 8);
- addr += mr->offset;
- for (i = 0; i < size; i += access_size) {
- /* FIXME: big-endian support */
- mr->ops->write(mr->opaque, addr + i, (data >> (i * 8)) & access_mask,
- access_size);
- }
+ access_with_adjusted_size(addr + mr->offset, &data, size,
+ mr->ops->impl.min_access_size,
+ mr->ops->impl.max_access_size,
+ memory_region_write_accessor, mr);
}
static uint32_t memory_region_read_thunk_b(void *mr, target_phys_addr_t addr)
@@ -949,8 +983,8 @@ void memory_region_destroy(MemoryRegion *mr)
assert(QTAILQ_EMPTY(&mr->subregions));
mr->destructor(mr);
memory_region_clear_coalescing(mr);
- qemu_free((char *)mr->name);
- qemu_free(mr->ioeventfds);
+ g_free((char *)mr->name);
+ g_free(mr->ioeventfds);
}
uint64_t memory_region_size(MemoryRegion *mr)
@@ -1061,7 +1095,7 @@ void memory_region_add_coalescing(MemoryRegion *mr,
target_phys_addr_t offset,
uint64_t size)
{
- CoalescedMemoryRange *cmr = qemu_malloc(sizeof(*cmr));
+ CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr));
cmr->addr = addrrange_make(offset, size);
QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link);
@@ -1075,7 +1109,7 @@ void memory_region_clear_coalescing(MemoryRegion *mr)
while (!QTAILQ_EMPTY(&mr->coalesced)) {
cmr = QTAILQ_FIRST(&mr->coalesced);
QTAILQ_REMOVE(&mr->coalesced, cmr, link);
- qemu_free(cmr);
+ g_free(cmr);
}
memory_region_update_coalesced_range(mr);
}
@@ -1102,7 +1136,7 @@ void memory_region_add_eventfd(MemoryRegion *mr,
}
}
++mr->ioeventfd_nb;
- mr->ioeventfds = qemu_realloc(mr->ioeventfds,
+ mr->ioeventfds = g_realloc(mr->ioeventfds,
sizeof(*mr->ioeventfds) * mr->ioeventfd_nb);
memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i],
sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i));
@@ -1135,7 +1169,7 @@ void memory_region_del_eventfd(MemoryRegion *mr,
memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1],
sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1)));
--mr->ioeventfd_nb;
- mr->ioeventfds = qemu_realloc(mr->ioeventfds,
+ mr->ioeventfds = g_realloc(mr->ioeventfds,
sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1);
memory_region_update_topology();
}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-26 07:37:19 +0200