1624 void qemu_ram_set_idstr(RAMBlock *new_block, const char *name, DeviceState *dev)  in qemu_ram_set_idstr()  argument
1628     assert(new_block);  in qemu_ram_set_idstr()
1629     assert(!new_block->idstr[0]);  in qemu_ram_set_idstr()
1634             snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id);  in qemu_ram_set_idstr()
1638     pstrcat(new_block->idstr, sizeof(new_block->idstr), name);  in qemu_ram_set_idstr()
1642         if (block != new_block &&  in qemu_ram_set_idstr()
1643             !strcmp(block->idstr, new_block->idstr)) {  in qemu_ram_set_idstr()
1645                     new_block->idstr);  in qemu_ram_set_idstr()
1830 static void ram_block_add(RAMBlock *new_block, Error **errp)  in ram_block_add()  argument
1832     const bool noreserve = qemu_ram_is_noreserve(new_block);  in ram_block_add()
1833     const bool shared = qemu_ram_is_shared(new_block);  in ram_block_add()
1841     new_block->offset = find_ram_offset(new_block->max_length);  in ram_block_add()
1843     if (!new_block->host) {  in ram_block_add()
1845             xen_ram_alloc(new_block->offset, new_block->max_length,  in ram_block_add()
1846                           new_block->mr, &err);  in ram_block_add()
1853             new_block->host = qemu_anon_ram_alloc(new_block->max_length,  in ram_block_add()
1854                                                   &new_block->mr->align,  in ram_block_add()
1856             if (!new_block->host) {  in ram_block_add()
1859                                  memory_region_name(new_block->mr));  in ram_block_add()
1863             memory_try_enable_merging(new_block->host, new_block->max_length);  in ram_block_add()
1868     if (new_block->flags & RAM_GUEST_MEMFD) {  in ram_block_add()
1872         assert(new_block->guest_memfd < 0);  in ram_block_add()
1882         new_block->guest_memfd = kvm_create_guest_memfd(new_block->max_length,  in ram_block_add()
1884         if (new_block->guest_memfd < 0) {  in ram_block_add()
1890     ram_size = (new_block->offset + new_block->max_length) >> TARGET_PAGE_BITS;  in ram_block_add()
1898         if (block->max_length < new_block->max_length) {  in ram_block_add()
1903         QLIST_INSERT_BEFORE_RCU(block, new_block, next);  in ram_block_add()
1905         QLIST_INSERT_AFTER_RCU(last_block, new_block, next);  in ram_block_add()
1907         QLIST_INSERT_HEAD_RCU(&ram_list.blocks, new_block, next);  in ram_block_add()
1916     cpu_physical_memory_set_dirty_range(new_block->offset,  in ram_block_add()
1917                                         new_block->used_length,  in ram_block_add()
1920     if (new_block->host) {  in ram_block_add()
1921         qemu_ram_setup_dump(new_block->host, new_block->max_length);  in ram_block_add()
1922         qemu_madvise(new_block->host, new_block->max_length, QEMU_MADV_HUGEPAGE);  in ram_block_add()
1929             qemu_madvise(new_block->host, new_block->max_length,  in ram_block_add()
1932         ram_block_notify_add(new_block->host, new_block->used_length,  in ram_block_add()
1933                              new_block->max_length);  in ram_block_add()
1939         qemu_anon_ram_free(new_block->host, new_block->max_length);  in ram_block_add()
1940         new_block->host = NULL;  in ram_block_add()
1949     RAMBlock *new_block;  in qemu_ram_alloc_from_fd()  local
1990     new_block = g_malloc0(sizeof(*new_block));  in qemu_ram_alloc_from_fd()
1991     new_block->mr = mr;  in qemu_ram_alloc_from_fd()
1992     new_block->used_length = size;  in qemu_ram_alloc_from_fd()
1993     new_block->max_length = size;  in qemu_ram_alloc_from_fd()
1994     new_block->flags = ram_flags;  in qemu_ram_alloc_from_fd()
1995     new_block->guest_memfd = -1;  in qemu_ram_alloc_from_fd()
1996     new_block->host = file_ram_alloc(new_block, size, fd, !file_size, offset,  in qemu_ram_alloc_from_fd()
1998     if (!new_block->host) {  in qemu_ram_alloc_from_fd()
1999         g_free(new_block);  in qemu_ram_alloc_from_fd()
2003     ram_block_add(new_block, &local_err);  in qemu_ram_alloc_from_fd()
2005         g_free(new_block);  in qemu_ram_alloc_from_fd()
2009     return new_block;  in qemu_ram_alloc_from_fd()
2070     RAMBlock *new_block;  in qemu_ram_alloc_internal()  local
2083     new_block = g_malloc0(sizeof(*new_block));  in qemu_ram_alloc_internal()
2084     new_block->mr = mr;  in qemu_ram_alloc_internal()
2085     new_block->resized = resized;  in qemu_ram_alloc_internal()
2086     new_block->used_length = size;  in qemu_ram_alloc_internal()
2087     new_block->max_length = max_size;  in qemu_ram_alloc_internal()
2089     new_block->fd = -1;  in qemu_ram_alloc_internal()
2090     new_block->guest_memfd = -1;  in qemu_ram_alloc_internal()
2091     new_block->page_size = qemu_real_host_page_size();  in qemu_ram_alloc_internal()
2092     new_block->host = host;  in qemu_ram_alloc_internal()
2093     new_block->flags = ram_flags;  in qemu_ram_alloc_internal()
2094     ram_block_add(new_block, &local_err);  in qemu_ram_alloc_internal()
2096         g_free(new_block);  in qemu_ram_alloc_internal()
2100     return new_block;  in qemu_ram_alloc_internal()