* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
*/
#include "memory.h"
unsigned memory_region_transaction_depth = 0;
static bool memory_region_update_pending = false;
+static bool global_dirty_log = false;
+
+static QTAILQ_HEAD(memory_listeners, MemoryListener) memory_listeners
+ = QTAILQ_HEAD_INITIALIZER(memory_listeners);
typedef struct AddrRange AddrRange;
return addrrange_make(start, int128_sub(end, start));
}
+enum ListenerDirection { Forward, Reverse };
+
+static bool memory_listener_match(MemoryListener *listener,
+ MemoryRegionSection *section)
+{
+ return !listener->address_space_filter
+ || listener->address_space_filter == section->address_space;
+}
+
+#define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \
+ do { \
+ MemoryListener *_listener; \
+ \
+ switch (_direction) { \
+ case Forward: \
+ QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
+ _listener->_callback(_listener, ##_args); \
+ } \
+ break; \
+ case Reverse: \
+ QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
+ memory_listeners, link) { \
+ _listener->_callback(_listener, ##_args); \
+ } \
+ break; \
+ default: \
+ abort(); \
+ } \
+ } while (0)
+
+#define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \
+ do { \
+ MemoryListener *_listener; \
+ \
+ switch (_direction) { \
+ case Forward: \
+ QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
+ if (memory_listener_match(_listener, _section)) { \
+ _listener->_callback(_listener, _section, ##_args); \
+ } \
+ } \
+ break; \
+ case Reverse: \
+ QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
+ memory_listeners, link) { \
+ if (memory_listener_match(_listener, _section)) { \
+ _listener->_callback(_listener, _section, ##_args); \
+ } \
+ } \
+ break; \
+ default: \
+ abort(); \
+ } \
+ } while (0)
+
+#define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback) \
+ MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \
+ .mr = (fr)->mr, \
+ .address_space = (as)->root, \
+ .offset_within_region = (fr)->offset_in_region, \
+ .size = int128_get64((fr)->addr.size), \
+ .offset_within_address_space = int128_get64((fr)->addr.start), \
+ .readonly = (fr)->readonly, \
+ }))
+
struct CoalescedMemoryRange {
AddrRange addr;
QTAILQ_ENTRY(CoalescedMemoryRange) link;
/* A system address space - I/O, memory, etc. */
struct AddressSpace {
- const AddressSpaceOps *ops;
MemoryRegion *root;
FlatView current_map;
int ioeventfd_nb;
MemoryRegionIoeventfd *ioeventfds;
};
-struct AddressSpaceOps {
- void (*range_add)(AddressSpace *as, FlatRange *fr);
- void (*range_del)(AddressSpace *as, FlatRange *fr);
- void (*log_start)(AddressSpace *as, FlatRange *fr);
- void (*log_stop)(AddressSpace *as, FlatRange *fr);
- void (*ioeventfd_add)(AddressSpace *as, MemoryRegionIoeventfd *fd);
- void (*ioeventfd_del)(AddressSpace *as, MemoryRegionIoeventfd *fd);
-};
-
#define FOR_EACH_FLAT_RANGE(var, view) \
for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var)
}
}
-static void memory_region_prepare_ram_addr(MemoryRegion *mr);
-
-static void as_memory_range_add(AddressSpace *as, FlatRange *fr)
-{
- ram_addr_t phys_offset, region_offset;
-
- memory_region_prepare_ram_addr(fr->mr);
-
- phys_offset = fr->mr->ram_addr;
- region_offset = fr->offset_in_region;
- /* cpu_register_physical_memory_log() wants region_offset for
- * mmio, but prefers offseting phys_offset for RAM. Humour it.
- */
- if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) {
- phys_offset += region_offset;
- region_offset = 0;
- }
-
- if (!fr->readable) {
- phys_offset &= ~TARGET_PAGE_MASK & ~IO_MEM_ROMD;
- }
-
- if (fr->readonly) {
- phys_offset |= IO_MEM_ROM;
- }
-
- cpu_register_physical_memory_log(int128_get64(fr->addr.start),
- int128_get64(fr->addr.size),
- phys_offset,
- region_offset,
- fr->dirty_log_mask);
-}
-
-static void as_memory_range_del(AddressSpace *as, FlatRange *fr)
-{
- if (fr->dirty_log_mask) {
- Int128 end = addrrange_end(fr->addr);
- cpu_physical_sync_dirty_bitmap(int128_get64(fr->addr.start),
- int128_get64(end));
- }
- cpu_register_physical_memory(int128_get64(fr->addr.start),
- int128_get64(fr->addr.size),
- IO_MEM_UNASSIGNED);
-}
-
-static void as_memory_log_start(AddressSpace *as, FlatRange *fr)
-{
- cpu_physical_log_start(int128_get64(fr->addr.start),
- int128_get64(fr->addr.size));
-}
-
-static void as_memory_log_stop(AddressSpace *as, FlatRange *fr)
-{
- cpu_physical_log_stop(int128_get64(fr->addr.start),
- int128_get64(fr->addr.size));
-}
-
-static void as_memory_ioeventfd_add(AddressSpace *as, MemoryRegionIoeventfd *fd)
-{
- int r;
-
- assert(fd->match_data && int128_get64(fd->addr.size) == 4);
-
- r = kvm_set_ioeventfd_mmio_long(fd->fd, int128_get64(fd->addr.start),
- fd->data, true);
- if (r < 0) {
- abort();
- }
-}
-
-static void as_memory_ioeventfd_del(AddressSpace *as, MemoryRegionIoeventfd *fd)
-{
- int r;
-
- r = kvm_set_ioeventfd_mmio_long(fd->fd, int128_get64(fd->addr.start),
- fd->data, false);
- if (r < 0) {
- abort();
- }
-}
-
-static const AddressSpaceOps address_space_ops_memory = {
- .range_add = as_memory_range_add,
- .range_del = as_memory_range_del,
- .log_start = as_memory_log_start,
- .log_stop = as_memory_log_stop,
- .ioeventfd_add = as_memory_ioeventfd_add,
- .ioeventfd_del = as_memory_ioeventfd_del,
-};
-
-static AddressSpace address_space_memory = {
- .ops = &address_space_ops_memory,
-};
+static AddressSpace address_space_memory;
static const MemoryRegionPortio *find_portio(MemoryRegion *mr, uint64_t offset,
unsigned width, bool write)
unsigned width,
uint64_t *data)
{
- MemoryRegion *mr = container_of(iorange, MemoryRegion, iorange);
+ MemoryRegionIORange *mrio
+ = container_of(iorange, MemoryRegionIORange, iorange);
+ MemoryRegion *mr = mrio->mr;
+ offset += mrio->offset;
if (mr->ops->old_portio) {
- const MemoryRegionPortio *mrp = find_portio(mr, offset, width, false);
+ const MemoryRegionPortio *mrp = find_portio(mr, offset - mrio->offset,
+ width, false);
*data = ((uint64_t)1 << (width * 8)) - 1;
if (mrp) {
- *data = mrp->read(mr->opaque, offset + mr->offset);
+ *data = mrp->read(mr->opaque, offset);
} else if (width == 2) {
- mrp = find_portio(mr, offset, 1, false);
+ mrp = find_portio(mr, offset - mrio->offset, 1, false);
assert(mrp);
- *data = mrp->read(mr->opaque, offset + mr->offset) |
- (mrp->read(mr->opaque, offset + mr->offset + 1) << 8);
+ *data = mrp->read(mr->opaque, offset) |
+ (mrp->read(mr->opaque, offset + 1) << 8);
}
return;
}
*data = 0;
- access_with_adjusted_size(offset + mr->offset, data, width,
+ access_with_adjusted_size(offset, data, width,
mr->ops->impl.min_access_size,
mr->ops->impl.max_access_size,
memory_region_read_accessor, mr);
unsigned width,
uint64_t data)
{
- MemoryRegion *mr = container_of(iorange, MemoryRegion, iorange);
+ MemoryRegionIORange *mrio
+ = container_of(iorange, MemoryRegionIORange, iorange);
+ MemoryRegion *mr = mrio->mr;
+ offset += mrio->offset;
if (mr->ops->old_portio) {
- const MemoryRegionPortio *mrp = find_portio(mr, offset, width, true);
+ const MemoryRegionPortio *mrp = find_portio(mr, offset - mrio->offset,
+ width, true);
if (mrp) {
- mrp->write(mr->opaque, offset + mr->offset, data);
+ mrp->write(mr->opaque, offset, data);
} else if (width == 2) {
- mrp = find_portio(mr, offset, 1, false);
+ mrp = find_portio(mr, offset - mrio->offset, 1, false);
assert(mrp);
- mrp->write(mr->opaque, offset + mr->offset, data & 0xff);
- mrp->write(mr->opaque, offset + mr->offset + 1, data >> 8);
+ mrp->write(mr->opaque, offset, data & 0xff);
+ mrp->write(mr->opaque, offset + 1, data >> 8);
}
return;
}
- access_with_adjusted_size(offset + mr->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 = {
+static void memory_region_iorange_destructor(IORange *iorange)
+{
+ g_free(container_of(iorange, MemoryRegionIORange, iorange));
+}
+
+const IORangeOps memory_region_iorange_ops = {
.read = memory_region_iorange_read,
.write = memory_region_iorange_write,
+ .destructor = memory_region_iorange_destructor,
};
-static void as_io_range_add(AddressSpace *as, FlatRange *fr)
-{
- iorange_init(&fr->mr->iorange, &memory_region_iorange_ops,
- int128_get64(fr->addr.start), int128_get64(fr->addr.size));
- ioport_register(&fr->mr->iorange);
-}
+static AddressSpace address_space_io;
-static void as_io_range_del(AddressSpace *as, FlatRange *fr)
+static AddressSpace *memory_region_to_address_space(MemoryRegion *mr)
{
- isa_unassign_ioport(int128_get64(fr->addr.start),
- int128_get64(fr->addr.size));
-}
-
-static void as_io_ioeventfd_add(AddressSpace *as, MemoryRegionIoeventfd *fd)
-{
- int r;
-
- assert(fd->match_data && int128_get64(fd->addr.size) == 2);
-
- r = kvm_set_ioeventfd_pio_word(fd->fd, int128_get64(fd->addr.start),
- fd->data, true);
- if (r < 0) {
- abort();
+ while (mr->parent) {
+ mr = mr->parent;
}
-}
-
-static void as_io_ioeventfd_del(AddressSpace *as, MemoryRegionIoeventfd *fd)
-{
- int r;
-
- r = kvm_set_ioeventfd_pio_word(fd->fd, int128_get64(fd->addr.start),
- fd->data, false);
- if (r < 0) {
- abort();
+ if (mr == address_space_memory.root) {
+ return &address_space_memory;
+ }
+ if (mr == address_space_io.root) {
+ return &address_space_io;
}
+ abort();
}
-static const AddressSpaceOps address_space_ops_io = {
- .range_add = as_io_range_add,
- .range_del = as_io_range_del,
- .ioeventfd_add = as_io_ioeventfd_add,
- .ioeventfd_del = as_io_ioeventfd_del,
-};
-
-static AddressSpace address_space_io = {
- .ops = &address_space_ops_io,
-};
-
/* Render a memory region into the global view. Ranges in @view obscure
* ranges in @mr.
*/
unsigned fds_old_nb)
{
unsigned iold, inew;
+ MemoryRegionIoeventfd *fd;
+ MemoryRegionSection section;
/* Generate a symmetric difference of the old and new fd sets, adding
* and deleting as necessary.
&& (inew == fds_new_nb
|| memory_region_ioeventfd_before(fds_old[iold],
fds_new[inew]))) {
- as->ops->ioeventfd_del(as, &fds_old[iold]);
+ fd = &fds_old[iold];
+ section = (MemoryRegionSection) {
+ .address_space = as->root,
+ .offset_within_address_space = int128_get64(fd->addr.start),
+ .size = int128_get64(fd->addr.size),
+ };
+ MEMORY_LISTENER_CALL(eventfd_del, Forward, §ion,
+ fd->match_data, fd->data, fd->fd);
++iold;
} else if (inew < fds_new_nb
&& (iold == fds_old_nb
|| memory_region_ioeventfd_before(fds_new[inew],
fds_old[iold]))) {
- as->ops->ioeventfd_add(as, &fds_new[inew]);
+ fd = &fds_new[inew];
+ section = (MemoryRegionSection) {
+ .address_space = as->root,
+ .offset_within_address_space = int128_get64(fd->addr.start),
+ .size = int128_get64(fd->addr.size),
+ };
+ MEMORY_LISTENER_CALL(eventfd_add, Reverse, §ion,
+ fd->match_data, fd->data, fd->fd);
++inew;
} else {
++iold;
/* In old, but (not in new, or in new but attributes changed). */
if (!adding) {
- as->ops->range_del(as, frold);
+ MEMORY_LISTENER_UPDATE_REGION(frold, as, Reverse, region_del);
}
++iold;
/* In both (logging may have changed) */
if (adding) {
+ MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_nop);
if (frold->dirty_log_mask && !frnew->dirty_log_mask) {
- as->ops->log_stop(as, frnew);
+ MEMORY_LISTENER_UPDATE_REGION(frnew, as, Reverse, log_stop);
} else if (frnew->dirty_log_mask && !frold->dirty_log_mask) {
- as->ops->log_start(as, frnew);
+ MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, log_start);
}
}
/* In new */
if (adding) {
- as->ops->range_add(as, frnew);
+ MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_add);
}
++inew;
return;
}
+ MEMORY_LISTENER_CALL_GLOBAL(begin, Forward);
+
if (address_space_memory.root) {
address_space_update_topology(&address_space_memory);
}
address_space_update_topology(&address_space_io);
}
+ MEMORY_LISTENER_CALL_GLOBAL(commit, Forward);
+
memory_region_update_pending = false;
}
static void memory_region_destructor_iomem(MemoryRegion *mr)
{
- cpu_unregister_io_memory(mr->ram_addr);
}
static void memory_region_destructor_rom_device(MemoryRegion *mr)
{
qemu_ram_free(mr->ram_addr & TARGET_PAGE_MASK);
- cpu_unregister_io_memory(mr->ram_addr & ~(TARGET_PAGE_MASK | IO_MEM_ROMD));
+}
+
+static bool memory_region_wrong_endianness(MemoryRegion *mr)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+ return mr->ops->endianness == DEVICE_LITTLE_ENDIAN;
+#else
+ return mr->ops->endianness == DEVICE_BIG_ENDIAN;
+#endif
}
void memory_region_init(MemoryRegion *mr,
mr->size = int128_2_64();
}
mr->addr = 0;
- mr->offset = 0;
+ mr->subpage = false;
mr->enabled = true;
mr->terminates = false;
mr->ram = false;
mr->readable = true;
mr->readonly = false;
+ mr->rom_device = false;
mr->destructor = memory_region_destructor_none;
mr->priority = 0;
mr->may_overlap = false;
return true;
}
-static uint32_t memory_region_read_thunk_n(void *_mr,
- target_phys_addr_t addr,
- unsigned size)
+static uint64_t memory_region_dispatch_read1(MemoryRegion *mr,
+ target_phys_addr_t addr,
+ unsigned size)
{
- MemoryRegion *mr = _mr;
uint64_t data = 0;
if (!memory_region_access_valid(mr, addr, size, false)) {
}
/* FIXME: support unaligned access */
- access_with_adjusted_size(addr + mr->offset, &data, size,
+ access_with_adjusted_size(addr, &data, size,
mr->ops->impl.min_access_size,
mr->ops->impl.max_access_size,
memory_region_read_accessor, mr);
return data;
}
-static void memory_region_write_thunk_n(void *_mr,
- target_phys_addr_t addr,
- unsigned size,
- uint64_t data)
+static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size)
{
- MemoryRegion *mr = _mr;
+ if (memory_region_wrong_endianness(mr)) {
+ switch (size) {
+ case 1:
+ break;
+ case 2:
+ *data = bswap16(*data);
+ break;
+ case 4:
+ *data = bswap32(*data);
+ break;
+ default:
+ abort();
+ }
+ }
+}
+
+static uint64_t memory_region_dispatch_read(MemoryRegion *mr,
+ target_phys_addr_t addr,
+ unsigned size)
+{
+ uint64_t ret;
+
+ ret = memory_region_dispatch_read1(mr, addr, size);
+ adjust_endianness(mr, &ret, size);
+ return ret;
+}
+static void memory_region_dispatch_write(MemoryRegion *mr,
+ target_phys_addr_t addr,
+ uint64_t data,
+ unsigned size)
+{
if (!memory_region_access_valid(mr, addr, size, true)) {
return; /* FIXME: better signalling */
}
+ adjust_endianness(mr, &data, size);
+
if (!mr->ops->write) {
mr->ops->old_mmio.write[bitops_ffsl(size)](mr->opaque, addr, data);
return;
}
/* FIXME: support unaligned access */
- access_with_adjusted_size(addr + mr->offset, &data, size,
+ access_with_adjusted_size(addr, &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)
-{
- return memory_region_read_thunk_n(mr, addr, 1);
-}
-
-static uint32_t memory_region_read_thunk_w(void *mr, target_phys_addr_t addr)
-{
- return memory_region_read_thunk_n(mr, addr, 2);
-}
-
-static uint32_t memory_region_read_thunk_l(void *mr, target_phys_addr_t addr)
-{
- return memory_region_read_thunk_n(mr, addr, 4);
-}
-
-static void memory_region_write_thunk_b(void *mr, target_phys_addr_t addr,
- uint32_t data)
-{
- memory_region_write_thunk_n(mr, addr, 1, data);
-}
-
-static void memory_region_write_thunk_w(void *mr, target_phys_addr_t addr,
- uint32_t data)
-{
- memory_region_write_thunk_n(mr, addr, 2, data);
-}
-
-static void memory_region_write_thunk_l(void *mr, target_phys_addr_t addr,
- uint32_t data)
-{
- memory_region_write_thunk_n(mr, addr, 4, data);
-}
-
-static CPUReadMemoryFunc * const memory_region_read_thunk[] = {
- memory_region_read_thunk_b,
- memory_region_read_thunk_w,
- memory_region_read_thunk_l,
-};
-
-static CPUWriteMemoryFunc * const memory_region_write_thunk[] = {
- memory_region_write_thunk_b,
- memory_region_write_thunk_w,
- memory_region_write_thunk_l,
-};
-
-static void memory_region_prepare_ram_addr(MemoryRegion *mr)
-{
- if (mr->backend_registered) {
- return;
- }
-
- mr->destructor = memory_region_destructor_iomem;
- mr->ram_addr = cpu_register_io_memory(memory_region_read_thunk,
- memory_region_write_thunk,
- mr,
- mr->ops->endianness);
- mr->backend_registered = true;
-}
-
void memory_region_init_io(MemoryRegion *mr,
const MemoryRegionOps *ops,
void *opaque,
mr->ops = ops;
mr->opaque = opaque;
mr->terminates = true;
- mr->backend_registered = false;
+ mr->destructor = memory_region_destructor_iomem;
+ mr->ram_addr = ~(ram_addr_t)0;
}
void memory_region_init_ram(MemoryRegion *mr,
- DeviceState *dev,
const char *name,
uint64_t size)
{
mr->ram = true;
mr->terminates = true;
mr->destructor = memory_region_destructor_ram;
- mr->ram_addr = qemu_ram_alloc(dev, name, size, mr);
- mr->backend_registered = true;
+ mr->ram_addr = qemu_ram_alloc(size, mr);
}
void memory_region_init_ram_ptr(MemoryRegion *mr,
- DeviceState *dev,
const char *name,
uint64_t size,
void *ptr)
mr->ram = true;
mr->terminates = true;
mr->destructor = memory_region_destructor_ram_from_ptr;
- mr->ram_addr = qemu_ram_alloc_from_ptr(dev, name, size, ptr, mr);
- mr->backend_registered = true;
+ mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr);
}
void memory_region_init_alias(MemoryRegion *mr,
void memory_region_init_rom_device(MemoryRegion *mr,
const MemoryRegionOps *ops,
void *opaque,
- DeviceState *dev,
const char *name,
uint64_t size)
{
mr->ops = ops;
mr->opaque = opaque;
mr->terminates = true;
+ mr->rom_device = true;
mr->destructor = memory_region_destructor_rom_device;
- mr->ram_addr = qemu_ram_alloc(dev, name, size, mr);
- mr->ram_addr |= cpu_register_io_memory(memory_region_read_thunk,
- memory_region_write_thunk,
- mr,
- mr->ops->endianness);
- mr->ram_addr |= IO_MEM_ROMD;
- mr->backend_registered = true;
+ mr->ram_addr = qemu_ram_alloc(size, mr);
+}
+
+static uint64_t invalid_read(void *opaque, target_phys_addr_t addr,
+ unsigned size)
+{
+ MemoryRegion *mr = opaque;
+
+ if (!mr->warning_printed) {
+ fprintf(stderr, "Invalid read from memory region %s\n", mr->name);
+ mr->warning_printed = true;
+ }
+ return -1U;
+}
+
+static void invalid_write(void *opaque, target_phys_addr_t addr, uint64_t data,
+ unsigned size)
+{
+ MemoryRegion *mr = opaque;
+
+ if (!mr->warning_printed) {
+ fprintf(stderr, "Invalid write to memory region %s\n", mr->name);
+ mr->warning_printed = true;
+ }
+}
+
+static const MemoryRegionOps reservation_ops = {
+ .read = invalid_read,
+ .write = invalid_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+void memory_region_init_reservation(MemoryRegion *mr,
+ const char *name,
+ uint64_t size)
+{
+ memory_region_init_io(mr, &reservation_ops, mr, name, size);
}
void memory_region_destroy(MemoryRegion *mr)
return int128_get64(mr->size);
}
+const char *memory_region_name(MemoryRegion *mr)
+{
+ return mr->name;
+}
+
bool memory_region_is_ram(MemoryRegion *mr)
{
return mr->ram;
}
-void memory_region_set_offset(MemoryRegion *mr, target_phys_addr_t offset)
+bool memory_region_is_logging(MemoryRegion *mr)
{
- mr->offset = offset;
+ return mr->dirty_log_mask;
+}
+
+bool memory_region_is_rom(MemoryRegion *mr)
+{
+ return mr->ram && mr->readonly;
}
void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client)
}
bool memory_region_get_dirty(MemoryRegion *mr, target_phys_addr_t addr,
- unsigned client)
+ target_phys_addr_t size, unsigned client)
{
assert(mr->terminates);
- return cpu_physical_memory_get_dirty(mr->ram_addr + addr, 1 << client);
+ return cpu_physical_memory_get_dirty(mr->ram_addr + addr, size,
+ 1 << client);
}
-void memory_region_set_dirty(MemoryRegion *mr, target_phys_addr_t addr)
+void memory_region_set_dirty(MemoryRegion *mr, target_phys_addr_t addr,
+ target_phys_addr_t size)
{
assert(mr->terminates);
- return cpu_physical_memory_set_dirty(mr->ram_addr + addr);
+ return cpu_physical_memory_set_dirty_range(mr->ram_addr + addr, size, -1);
}
void memory_region_sync_dirty_bitmap(MemoryRegion *mr)
FOR_EACH_FLAT_RANGE(fr, &address_space_memory.current_map) {
if (fr->mr == mr) {
- cpu_physical_sync_dirty_bitmap(int128_get64(fr->addr.start),
- int128_get64(addrrange_end(fr->addr)));
+ MEMORY_LISTENER_UPDATE_REGION(fr, &address_space_memory,
+ Forward, log_sync);
}
}
}
memory_region_update_topology(mr);
}
+ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr)
+{
+ return mr->ram_addr;
+}
+
+static int cmp_flatrange_addr(const void *addr_, const void *fr_)
+{
+ const AddrRange *addr = addr_;
+ const FlatRange *fr = fr_;
+
+ if (int128_le(addrrange_end(*addr), fr->addr.start)) {
+ return -1;
+ } else if (int128_ge(addr->start, addrrange_end(fr->addr))) {
+ return 1;
+ }
+ return 0;
+}
+
+static FlatRange *address_space_lookup(AddressSpace *as, AddrRange addr)
+{
+ return bsearch(&addr, as->current_map.ranges, as->current_map.nr,
+ sizeof(FlatRange), cmp_flatrange_addr);
+}
+
+MemoryRegionSection memory_region_find(MemoryRegion *address_space,
+ target_phys_addr_t addr, uint64_t size)
+{
+ AddressSpace *as = memory_region_to_address_space(address_space);
+ AddrRange range = addrrange_make(int128_make64(addr),
+ int128_make64(size));
+ FlatRange *fr = address_space_lookup(as, range);
+ MemoryRegionSection ret = { .mr = NULL, .size = 0 };
+
+ if (!fr) {
+ return ret;
+ }
+
+ while (fr > as->current_map.ranges
+ && addrrange_intersects(fr[-1].addr, range)) {
+ --fr;
+ }
+
+ ret.mr = fr->mr;
+ range = addrrange_intersection(range, fr->addr);
+ ret.offset_within_region = fr->offset_in_region;
+ ret.offset_within_region += int128_get64(int128_sub(range.start,
+ fr->addr.start));
+ ret.size = int128_get64(range.size);
+ ret.offset_within_address_space = int128_get64(range.start);
+ ret.readonly = fr->readonly;
+ return ret;
+}
+
+void memory_global_sync_dirty_bitmap(MemoryRegion *address_space)
+{
+ AddressSpace *as = memory_region_to_address_space(address_space);
+ FlatRange *fr;
+
+ FOR_EACH_FLAT_RANGE(fr, &as->current_map) {
+ MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync);
+ }
+}
+
+void memory_global_dirty_log_start(void)
+{
+ global_dirty_log = true;
+ MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward);
+}
+
+void memory_global_dirty_log_stop(void)
+{
+ global_dirty_log = false;
+ MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse);
+}
+
+static void listener_add_address_space(MemoryListener *listener,
+ AddressSpace *as)
+{
+ FlatRange *fr;
+
+ if (listener->address_space_filter
+ && listener->address_space_filter != as->root) {
+ return;
+ }
+
+ if (global_dirty_log) {
+ listener->log_global_start(listener);
+ }
+ FOR_EACH_FLAT_RANGE(fr, &as->current_map) {
+ MemoryRegionSection section = {
+ .mr = fr->mr,
+ .address_space = as->root,
+ .offset_within_region = fr->offset_in_region,
+ .size = int128_get64(fr->addr.size),
+ .offset_within_address_space = int128_get64(fr->addr.start),
+ .readonly = fr->readonly,
+ };
+ listener->region_add(listener, §ion);
+ }
+}
+
+void memory_listener_register(MemoryListener *listener, MemoryRegion *filter)
+{
+ MemoryListener *other = NULL;
+
+ listener->address_space_filter = filter;
+ if (QTAILQ_EMPTY(&memory_listeners)
+ || listener->priority >= QTAILQ_LAST(&memory_listeners,
+ memory_listeners)->priority) {
+ QTAILQ_INSERT_TAIL(&memory_listeners, listener, link);
+ } else {
+ QTAILQ_FOREACH(other, &memory_listeners, link) {
+ if (listener->priority < other->priority) {
+ break;
+ }
+ }
+ QTAILQ_INSERT_BEFORE(other, listener, link);
+ }
+ listener_add_address_space(listener, &address_space_memory);
+ listener_add_address_space(listener, &address_space_io);
+}
+
+void memory_listener_unregister(MemoryListener *listener)
+{
+ QTAILQ_REMOVE(&memory_listeners, listener, link);
+}
+
void set_system_memory_map(MemoryRegion *mr)
{
address_space_memory.root = mr;
memory_region_update_topology(NULL);
}
+uint64_t io_mem_read(MemoryRegion *mr, target_phys_addr_t addr, unsigned size)
+{
+ return memory_region_dispatch_read(mr, addr, size);
+}
+
+void io_mem_write(MemoryRegion *mr, target_phys_addr_t addr,
+ uint64_t val, unsigned size)
+{
+ memory_region_dispatch_write(mr, addr, val, size);
+}
+
typedef struct MemoryRegionList MemoryRegionList;
struct MemoryRegionList {
ml->printed = false;
QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue);
}
- mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d): alias %s @%s "
- TARGET_FMT_plx "-" TARGET_FMT_plx "\n",
+ mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx
+ " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx
+ "-" TARGET_FMT_plx "\n",
base + mr->addr,
base + mr->addr
+ (target_phys_addr_t)int128_get64(mr->size) - 1,
mr->priority,
+ mr->readable ? 'R' : '-',
+ !mr->readonly && !(mr->rom_device && mr->readable) ? 'W'
+ : '-',
mr->name,
mr->alias->name,
mr->alias_offset,
mr->alias_offset
+ (target_phys_addr_t)int128_get64(mr->size) - 1);
} else {
- mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d): %s\n",
+ mon_printf(f,
+ TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %c%c): %s\n",
base + mr->addr,
base + mr->addr
+ (target_phys_addr_t)int128_get64(mr->size) - 1,
mr->priority,
+ mr->readable ? 'R' : '-',
+ !mr->readonly && !(mr->rom_device && mr->readable) ? 'W'
+ : '-',
mr->name);
}
mon_printf(f, "memory\n");
mtree_print_mr(mon_printf, f, address_space_memory.root, 0, 0, &ml_head);
+ if (address_space_io.root &&
+ !QTAILQ_EMPTY(&address_space_io.root->subregions)) {
+ mon_printf(f, "I/O\n");
+ mtree_print_mr(mon_printf, f, address_space_io.root, 0, 0, &ml_head);
+ }
+
+ mon_printf(f, "aliases\n");
/* print aliased regions */
QTAILQ_FOREACH(ml, &ml_head, queue) {
if (!ml->printed) {
QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) {
g_free(ml);
}
-
- if (address_space_io.root &&
- !QTAILQ_EMPTY(&address_space_io.root->subregions)) {
- QTAILQ_INIT(&ml_head);
- mon_printf(f, "I/O\n");
- mtree_print_mr(mon_printf, f, address_space_io.root, 0, 0, &ml_head);
- }
}
projects / qemu.git / blobdiff