diff options
| -rw-r--r-- | vl.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/vl.c b/vl.c index 72ffc06f2f..a7edcba094 100644 --- a/vl.c +++ b/vl.c @@ -2655,6 +2655,21 @@ static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size, exit(EXIT_FAILURE); } + if (current_machine->ram_memdev_id) { + Object *backend; + ram_addr_t backend_size; + + backend = object_resolve_path_type(current_machine->ram_memdev_id, + TYPE_MEMORY_BACKEND, NULL); + backend_size = object_property_get_uint(backend, "size", &error_abort); + if (mem_str && backend_size != ram_size) { + error_report("Size specified by -m option must match size of " + "explicitly specified 'memory-backend' property"); + exit(EXIT_FAILURE); + } + ram_size = backend_size; + } + if (!xen_enabled()) { /* On 32-bit hosts, QEMU is limited by virtual address space */ if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) { |