diff options
Diffstat (limited to 'memory.c')
| -rw-r--r-- | memory.c | 39 |
1 files changed, 38 insertions, 1 deletions
@@ -23,6 +23,7 @@ #include "exec/memory-internal.h" #include "exec/ram_addr.h" +#include "sysemu/sysemu.h" //#define DEBUG_UNASSIGNED @@ -493,7 +494,7 @@ static AddressSpace *memory_region_to_address_space(MemoryRegion *mr) return as; } } - abort(); + return NULL; } /* Render a memory region into the global view. Ranges in @view obscure @@ -1032,6 +1033,23 @@ void memory_region_init_ram(MemoryRegion *mr, mr->ram_addr = qemu_ram_alloc(size, mr); } +#ifdef __linux__ +void memory_region_init_ram_from_file(MemoryRegion *mr, + struct Object *owner, + const char *name, + uint64_t size, + bool share, + const char *path, + Error **errp) +{ + memory_region_init(mr, owner, name, size); + mr->ram = true; + mr->terminates = true; + mr->destructor = memory_region_destructor_ram; + mr->ram_addr = qemu_ram_alloc_from_file(size, mr, share, path, errp); +} +#endif + void memory_region_init_ram_ptr(MemoryRegion *mr, Object *owner, const char *name, @@ -1254,6 +1272,17 @@ void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr, cpu_physical_memory_reset_dirty(mr->ram_addr + addr, size, client); } +int memory_region_get_fd(MemoryRegion *mr) +{ + if (mr->alias) { + return memory_region_get_fd(mr->alias); + } + + assert(mr->terminates); + + return qemu_get_ram_fd(mr->ram_addr & TARGET_PAGE_MASK); +} + void *memory_region_get_ram_ptr(MemoryRegion *mr) { if (mr->alias) { @@ -1593,6 +1622,11 @@ bool memory_region_present(MemoryRegion *container, hwaddr addr) return true; } +bool memory_region_is_mapped(MemoryRegion *mr) +{ + return mr->container ? true : false; +} + MemoryRegionSection memory_region_find(MemoryRegion *mr, hwaddr addr, uint64_t size) { @@ -1610,6 +1644,9 @@ MemoryRegionSection memory_region_find(MemoryRegion *mr, } as = memory_region_to_address_space(root); + if (!as) { + return ret; + } range = addrrange_make(int128_make64(addr), int128_make64(size)); view = address_space_get_flatview(as); |