diff --git a/tests/acpi-utils.c b/tests/acpi-utils.c
index 633d8f513d5af091769edf9bf62f925b9b28a639..644c87b5f9fa7a68e584c90afb05e4a070457bb3 100644
--- a/tests/acpi-utils.c
+++ b/tests/acpi-utils.c
@@ -91,13 +91,15 @@ void acpi_fetch_rsdp_table(QTestState *qts, uint32_t addr, uint8_t *rsdp_table)
  *  actual one.
  */
 void acpi_fetch_table(QTestState *qts, uint8_t **aml, uint32_t *aml_len,
-                      const uint8_t *addr_ptr, const char *sig,
+                      const uint8_t *addr_ptr, int addr_size, const char *sig,
                       bool verify_checksum)
 {
-    uint32_t addr, len;
+    uint32_t len;
+    uint64_t addr = 0;
 
-    memcpy(&addr, addr_ptr , sizeof(addr));
-    addr = le32_to_cpu(addr);
+    g_assert(addr_size == 4 || addr_size == 8);
+    memcpy(&addr, addr_ptr , addr_size);
+    addr = le64_to_cpu(addr);
     qtest_memread(qts, addr + 4, &len, 4); /* Length of ACPI table */
     *aml_len = le32_to_cpu(len);
     *aml = g_malloc0(*aml_len);
diff --git a/tests/acpi-utils.h b/tests/acpi-utils.h
index a303e61f00b15948a3d29d05669a4fb6366d9269..7c5c0be37933a93bac5a909cf91ea22b5cc90263 100644
--- a/tests/acpi-utils.h
+++ b/tests/acpi-utils.h
@@ -49,7 +49,7 @@ uint32_t acpi_find_rsdp_address(QTestState *qts);
 uint64_t acpi_get_xsdt_address(uint8_t *rsdp_table);
 void acpi_fetch_rsdp_table(QTestState *qts, uint32_t addr, uint8_t *rsdp_table);
 void acpi_fetch_table(QTestState *qts, uint8_t **aml, uint32_t *aml_len,
-                      const uint8_t *addr_ptr, const char *sig,
+                      const uint8_t *addr_ptr, int addr_size, const char *sig,
                       bool verify_checksum);
 
 #endif /* TEST_ACPI_UTILS_H */
diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c
index 6a678bf761e6a9459a8ce37b030a7475b39444ee..86b592c67f4261255e92fd6787d610a609aae383 100644
--- a/tests/bios-tables-test.c
+++ b/tests/bios-tables-test.c
@@ -114,14 +114,14 @@ static void test_acpi_rsdt_table(test_data *data)
 
     /* read RSDT table */
     acpi_fetch_table(data->qts, &rsdt.aml, &rsdt.aml_len,
-                     &data->rsdp_table[16 /* RsdtAddress */], "RSDT", true);
+                     &data->rsdp_table[16 /* RsdtAddress */], 4, "RSDT", true);
 
     /* Load all tables and add to test list directly RSDT referenced tables */
     ACPI_FOREACH_RSDT_ENTRY(rsdt.aml, rsdt.aml_len, ent, 4 /* Entry size */) {
         AcpiSdtTable ssdt_table = {};
 
         acpi_fetch_table(data->qts, &ssdt_table.aml, &ssdt_table.aml_len, ent,
-                         NULL, true);
+                         4, NULL, true);
         /* Add table to ASL test tables list */
         g_array_append_val(data->tables, ssdt_table);
     }
@@ -139,11 +139,11 @@ static void test_acpi_fadt_table(test_data *data)
 
     /* Since DSDT/FACS isn't in RSDT, add them to ASL test list manually */
     acpi_fetch_table(data->qts, &table.aml, &table.aml_len,
-                     fadt_aml + 36 /* FIRMWARE_CTRL */, "FACS", false);
+                     fadt_aml + 36 /* FIRMWARE_CTRL */, 4, "FACS", false);
     g_array_append_val(data->tables, table);
 
     acpi_fetch_table(data->qts, &table.aml, &table.aml_len,
-                     fadt_aml + 40 /* DSDT */, "DSDT", true);
+                     fadt_aml + 40 /* DSDT */, 4, "DSDT", true);
     g_array_append_val(data->tables, table);
 
     memset(fadt_aml + 36, 0, 4); /* sanitize FIRMWARE_CTRL ptr */
diff --git a/tests/vmgenid-test.c b/tests/vmgenid-test.c
index f400184268018d0315a40415f26b367a4a57b937..85d8e6463efcc7e0602bdcd97d26e8d710dc8f61 100644
--- a/tests/vmgenid-test.c
+++ b/tests/vmgenid-test.c
@@ -42,12 +42,12 @@ static uint32_t acpi_find_vgia(QTestState *qts)
 
     acpi_fetch_rsdp_table(qts, rsdp_offset, rsdp_table);
     acpi_fetch_table(qts, &rsdt, &rsdt_len, &rsdp_table[16 /* RsdtAddress */],
-                     "RSDT", true);
+                     4, "RSDT", true);
 
     ACPI_FOREACH_RSDT_ENTRY(rsdt, rsdt_len, ent, 4 /* Entry size */) {
         uint8_t *table_aml;
 
-        acpi_fetch_table(qts, &table_aml, &table_length, ent, NULL, true);
+        acpi_fetch_table(qts, &table_aml, &table_length, ent, 4, NULL, true);
         if (!memcmp(table_aml + 16 /* OEM Table ID */, "VMGENID", 7)) {
             uint32_t vgia_val;
             uint8_t *aml = &table_aml[36 /* AML byte-code start */];