phys_page_set(d, start_addr >> TARGET_PAGE_BITS, num_pages, section_index);
}
+/*
+ * The range in *section* may look like this:
+ *
+ * |s|PPPPPPP|s|
+ *
+ * where s stands for subpage and P for page.
+ */
void flatview_add_to_dispatch(FlatView *fv, MemoryRegionSection *section)
{
- MemoryRegionSection now = *section, remain = *section;
+ MemoryRegionSection remain = *section;
Int128 page_size = int128_make64(TARGET_PAGE_SIZE);
- if (now.offset_within_address_space & ~TARGET_PAGE_MASK) {
- uint64_t left = TARGET_PAGE_ALIGN(now.offset_within_address_space)
- - now.offset_within_address_space;
+ /* register first subpage */
+ if (remain.offset_within_address_space & ~TARGET_PAGE_MASK) {
+ uint64_t left = TARGET_PAGE_ALIGN(remain.offset_within_address_space)
+ - remain.offset_within_address_space;
+ MemoryRegionSection now = remain;
now.size = int128_min(int128_make64(left), now.size);
register_subpage(fv, &now);
- } else {
- now.size = int128_zero();
- }
- while (int128_ne(remain.size, now.size)) {
+ if (int128_eq(remain.size, now.size)) {
+ return;
+ }
remain.size = int128_sub(remain.size, now.size);
remain.offset_within_address_space += int128_get64(now.size);
remain.offset_within_region += int128_get64(now.size);
- now = remain;
- if (int128_lt(remain.size, page_size)) {
- register_subpage(fv, &now);
- } else if (remain.offset_within_address_space & ~TARGET_PAGE_MASK) {
- now.size = page_size;
- register_subpage(fv, &now);
- } else {
- now.size = int128_and(now.size, int128_neg(page_size));
- register_multipage(fv, &now);
+ }
+
+ /* register whole pages */
+ if (int128_ge(remain.size, page_size)) {
+ MemoryRegionSection now = remain;
+ now.size = int128_and(now.size, int128_neg(page_size));
+ register_multipage(fv, &now);
+ if (int128_eq(remain.size, now.size)) {
+ return;
}
+ remain.size = int128_sub(remain.size, now.size);
+ remain.offset_within_address_space += int128_get64(now.size);
+ remain.offset_within_region += int128_get64(now.size);
}
+
+ /* register last subpage */
+ register_subpage(fv, &remain);
}
void qemu_flush_coalesced_mmio_buffer(void)
return rb->idstr;
}
+void *qemu_ram_get_host_addr(RAMBlock *rb)
+{
+ return rb->host;
+}
+
+ram_addr_t qemu_ram_get_offset(RAMBlock *rb)
+{
+ return rb->offset;
+}
+
+ram_addr_t qemu_ram_get_used_length(RAMBlock *rb)
+{
+ return rb->used_length;
+}
+
bool qemu_ram_is_shared(RAMBlock *rb)
{
return rb->flags & RAM_SHARED;
};
static MemTxResult flatview_read(FlatView *fv, hwaddr addr,
- MemTxAttrs attrs, uint8_t *buf, int len);
+ MemTxAttrs attrs, uint8_t *buf, hwaddr len);
static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs,
- const uint8_t *buf, int len);
-static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len,
+ const uint8_t *buf, hwaddr len);
+static bool flatview_access_valid(FlatView *fv, hwaddr addr, hwaddr len,
bool is_write, MemTxAttrs attrs);
static MemTxResult subpage_read(void *opaque, hwaddr addr, uint64_t *data,
/* physical memory access (slow version, mainly for debug) */
#if defined(CONFIG_USER_ONLY)
int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
- uint8_t *buf, int len, int is_write)
+ uint8_t *buf, target_ulong len, int is_write)
{
- int l, flags;
- target_ulong page;
+ int flags;
+ target_ulong l, page;
void * p;
while (len > 0) {
static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr,
MemTxAttrs attrs,
const uint8_t *buf,
- int len, hwaddr addr1,
+ hwaddr len, hwaddr addr1,
hwaddr l, MemoryRegion *mr)
{
uint8_t *ptr;
/* Called from RCU critical section. */
static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs,
- const uint8_t *buf, int len)
+ const uint8_t *buf, hwaddr len)
{
hwaddr l;
hwaddr addr1;
/* Called within RCU critical section. */
MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr,
MemTxAttrs attrs, uint8_t *buf,
- int len, hwaddr addr1, hwaddr l,
+ hwaddr len, hwaddr addr1, hwaddr l,
MemoryRegion *mr)
{
uint8_t *ptr;
/* Called from RCU critical section. */
static MemTxResult flatview_read(FlatView *fv, hwaddr addr,
- MemTxAttrs attrs, uint8_t *buf, int len)
+ MemTxAttrs attrs, uint8_t *buf, hwaddr len)
{
hwaddr l;
hwaddr addr1;
}
MemTxResult address_space_read_full(AddressSpace *as, hwaddr addr,
- MemTxAttrs attrs, uint8_t *buf, int len)
+ MemTxAttrs attrs, uint8_t *buf, hwaddr len)
{
MemTxResult result = MEMTX_OK;
FlatView *fv;
MemTxResult address_space_write(AddressSpace *as, hwaddr addr,
MemTxAttrs attrs,
- const uint8_t *buf, int len)
+ const uint8_t *buf, hwaddr len)
{
MemTxResult result = MEMTX_OK;
FlatView *fv;
}
MemTxResult address_space_rw(AddressSpace *as, hwaddr addr, MemTxAttrs attrs,
- uint8_t *buf, int len, bool is_write)
+ uint8_t *buf, hwaddr len, bool is_write)
{
if (is_write) {
return address_space_write(as, addr, attrs, buf, len);
}
void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf,
- int len, int is_write)
+ hwaddr len, int is_write)
{
address_space_rw(&address_space_memory, addr, MEMTXATTRS_UNSPECIFIED,
buf, len, is_write);
hwaddr addr,
MemTxAttrs attrs,
const uint8_t *buf,
- int len,
+ hwaddr len,
enum write_rom_type type)
{
hwaddr l;
/* used for ROM loading : can write in RAM and ROM */
MemTxResult address_space_write_rom(AddressSpace *as, hwaddr addr,
MemTxAttrs attrs,
- const uint8_t *buf, int len)
+ const uint8_t *buf, hwaddr len)
{
return address_space_write_rom_internal(as, addr, attrs,
buf, len, WRITE_DATA);
}
-void cpu_flush_icache_range(hwaddr start, int len)
+void cpu_flush_icache_range(hwaddr start, hwaddr len)
{
/*
* This function should do the same thing as an icache flush that was
qemu_mutex_unlock(&map_client_list_lock);
}
-static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len,
+static bool flatview_access_valid(FlatView *fv, hwaddr addr, hwaddr len,
bool is_write, MemTxAttrs attrs)
{
MemoryRegion *mr;
}
bool address_space_access_valid(AddressSpace *as, hwaddr addr,
- int len, bool is_write,
+ hwaddr len, bool is_write,
MemTxAttrs attrs)
{
FlatView *fv;
*/
void
address_space_read_cached_slow(MemoryRegionCache *cache, hwaddr addr,
- void *buf, int len)
+ void *buf, hwaddr len)
{
hwaddr addr1, l;
MemoryRegion *mr;
*/
void
address_space_write_cached_slow(MemoryRegionCache *cache, hwaddr addr,
- const void *buf, int len)
+ const void *buf, hwaddr len)
{
hwaddr addr1, l;
MemoryRegion *mr;
/* virtual memory access for debug (includes writing to ROM) */
int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
- uint8_t *buf, int len, int is_write)
+ uint8_t *buf, target_ulong len, int is_write)
{
- int l;
hwaddr phys_addr;
- target_ulong page;
+ target_ulong l, page;
cpu_synchronize_state(cpu);
while (len > 0) {
rcu_read_lock();
RAMBLOCK_FOREACH(block) {
- ret = func(block->idstr, block->host, block->offset,
- block->used_length, opaque);
- if (ret) {
- break;
- }
- }
- rcu_read_unlock();
- return ret;
-}
-
-int qemu_ram_foreach_migratable_block(RAMBlockIterFunc func, void *opaque)
-{
- RAMBlock *block;
- int ret = 0;
-
- rcu_read_lock();
- RAMBLOCK_FOREACH(block) {
- if (!qemu_ram_is_migratable(block)) {
- continue;
- }
- ret = func(block->idstr, block->host, block->offset,
- block->used_length, opaque);
+ ret = func(block, opaque);
if (ret) {
break;
}
projects / qemu.git / blobdiff