diff --git a/hw/lm32/lm32_hwsetup.h b/hw/lm32/lm32_hwsetup.h
index b71e6eafba48..23e18784dffd 100644
--- a/hw/lm32/lm32_hwsetup.h
+++ b/hw/lm32/lm32_hwsetup.h
@@ -75,7 +75,7 @@ static inline void hwsetup_create_rom(HWSetup *hw,
         hwaddr base)
 {
     rom_add_blob("hwsetup", hw->data, TARGET_PAGE_SIZE,
-                 TARGET_PAGE_SIZE, base, NULL, NULL, NULL);
+                 TARGET_PAGE_SIZE, base, NULL, NULL, NULL, NULL);
 }
 
 static inline void hwsetup_add_u8(HWSetup *hw, uint8_t u)
diff --git a/include/hw/loader.h b/include/hw/loader.h
index 038170624d8f..0c864cfd6046 100644
--- a/include/hw/loader.h
+++ b/include/hw/loader.h
@@ -180,7 +180,7 @@ MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
                            size_t max_len, hwaddr addr,
                            const char *fw_file_name,
                            FWCfgReadCallback fw_callback,
-                           void *callback_opaque);
+                           void *callback_opaque, AddressSpace *as);
 int rom_add_elf_program(const char *name, void *data, size_t datasize,
                         size_t romsize, hwaddr addr, AddressSpace *as);
 int rom_check_and_register_reset(void);
@@ -194,7 +194,7 @@ void hmp_info_roms(Monitor *mon, const QDict *qdict);
 #define rom_add_file_fixed(_f, _a, _i)          \
     rom_add_file(_f, NULL, _a, _i, false, NULL, NULL)
 #define rom_add_blob_fixed(_f, _b, _l, _a)      \
-    rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL)
+    rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL, NULL)
 #define rom_add_file_mr(_f, _mr, _i)            \
     rom_add_file(_f, NULL, 0, _i, false, _mr, NULL)
 #define rom_add_file_as(_f, _as, _i)            \
@@ -202,7 +202,7 @@ void hmp_info_roms(Monitor *mon, const QDict *qdict);
 #define rom_add_file_fixed_as(_f, _a, _i, _as)          \
     rom_add_file(_f, NULL, _a, _i, false, NULL, _as)
 #define rom_add_blob_fixed_as(_f, _b, _l, _a, _as)      \
-    rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, _as)
+    rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL, _as)
 
 #define PC_ROM_MIN_VGA     0xc0000
 #define PC_ROM_MIN_OPTION  0xc8000
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index f953610018c4..d4160dfa7d34 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -809,7 +809,7 @@ static MemoryRegion *acpi_add_rom_blob(AcpiBuildState *build_state,
                                        uint64_t max_size)
 {
     return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size, -1,
-                        name, virt_acpi_build_update, build_state);
+                        name, virt_acpi_build_update, build_state, NULL);
 }
 
 static const VMStateDescription vmstate_virt_acpi_build = {
diff --git a/hw/core/loader.c b/hw/core/loader.c
index 6e022b5ad583..c0d645a87134 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -978,7 +978,8 @@ err:
 
 MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
                    size_t max_len, hwaddr addr, const char *fw_file_name,
-                   FWCfgReadCallback fw_callback, void *callback_opaque)
+                   FWCfgReadCallback fw_callback, void *callback_opaque,
+                   AddressSpace *as)
 {
     MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
     Rom *rom;
@@ -986,6 +987,7 @@ MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
 
     rom           = g_malloc0(sizeof(*rom));
     rom->name     = g_strdup(name);
+    rom->as       = as;
     rom->addr     = addr;
     rom->romsize  = max_len ? max_len : len;
     rom->datasize = len;
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 45a2ccfc4c60..9708cdc463df 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2936,7 +2936,7 @@ static MemoryRegion *acpi_add_rom_blob(AcpiBuildState *build_state,
                                        uint64_t max_size)
 {
     return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size, -1,
-                        name, acpi_build_update, build_state);
+                        name, acpi_build_update, build_state, NULL);
 }
 
 static const VMStateDescription vmstate_acpi_build = {
