tests/acpi-utils: Drop dependence on global_qtest

As a general rule, we prefer avoiding implicit global state
because it makes code harder to safely copy and paste without
thinking about the global state.  Adjust the helper code to
use explicit state instead, and update all callers.

bios-tables-test no longer depends on global_qtest, now that it
passes explicit state through the testsuite data; an assert
proves this fact (although we will get rid of it later, once
global_qtest is gone).

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
[thuth: adapted patch to current master branch]
Signed-off-by: Thomas Huth <thuth@redhat.com>

4 files changed, 96 insertions, 92 deletions

diff --git a/tests/acpi-utils.c b/tests/acpi-utils.c
index 41dc1ea9b4..6dc8ca1a8c 100644
--- a/tests/acpi-utils.c
+++ b/tests/acpi-utils.c
@@ -32,7 +32,7 @@ uint8_t acpi_calc_checksum(const uint8_t *data, int len)
     return sum;
 }
 
-uint32_t acpi_find_rsdp_address(void)
+uint32_t acpi_find_rsdp_address(QTestState *qts)
 {
     uint32_t off;
 
@@ -42,7 +42,7 @@ uint32_t acpi_find_rsdp_address(void)
         int i;
 
         for (i = 0; i < sizeof sig - 1; ++i) {
-            sig[i] = readb(off + i);
+            sig[i] = qtest_readb(qts, off + i);
         }
 
         if (!memcmp(sig, "RSD PTR ", sizeof sig)) {
@@ -52,14 +52,15 @@ uint32_t acpi_find_rsdp_address(void)
     return off;
 }
 
-void acpi_parse_rsdp_table(uint32_t addr, AcpiRsdpDescriptor *rsdp_table)
+void acpi_parse_rsdp_table(QTestState *qts, uint32_t addr,
+                           AcpiRsdpDescriptor *rsdp_table)
 {
-    ACPI_READ_FIELD(rsdp_table->signature, addr);
+    ACPI_READ_FIELD(qts, rsdp_table->signature, addr);
     ACPI_ASSERT_CMP64(rsdp_table->signature, "RSD PTR ");
 
-    ACPI_READ_FIELD(rsdp_table->checksum, addr);
-    ACPI_READ_ARRAY(rsdp_table->oem_id, addr);
-    ACPI_READ_FIELD(rsdp_table->revision, addr);
-    ACPI_READ_FIELD(rsdp_table->rsdt_physical_address, addr);
-    ACPI_READ_FIELD(rsdp_table->length, addr);
+    ACPI_READ_FIELD(qts, rsdp_table->checksum, addr);
+    ACPI_READ_ARRAY(qts, rsdp_table->oem_id, addr);
+    ACPI_READ_FIELD(qts, rsdp_table->revision, addr);
+    ACPI_READ_FIELD(qts, rsdp_table->rsdt_physical_address, addr);
+    ACPI_READ_FIELD(qts, rsdp_table->length, addr);
 }
diff --git a/tests/acpi-utils.h b/tests/acpi-utils.h
index ac52abd0dd..a06a4ed964 100644
--- a/tests/acpi-utils.h
+++ b/tests/acpi-utils.h
@@ -28,34 +28,34 @@ typedef struct {
     bool tmp_files_retain;   /* do not delete the temp asl/aml */
 } AcpiSdtTable;
 
-#define ACPI_READ_FIELD(field, addr)            \
-    do {                                        \
-        memread(addr, &field, sizeof(field));   \
-        addr += sizeof(field);                  \
+#define ACPI_READ_FIELD(qts, field, addr)                \
+    do {                                                 \
+        qtest_memread(qts, addr, &field, sizeof(field)); \
+        addr += sizeof(field);                           \
     } while (0)
 
-#define ACPI_READ_ARRAY_PTR(arr, length, addr)  \
-    do {                                        \
-        int idx;                                \
-        for (idx = 0; idx < length; ++idx) {    \
-            ACPI_READ_FIELD(arr[idx], addr);    \
-        }                                       \
+#define ACPI_READ_ARRAY_PTR(qts, arr, length, addr)      \
+    do {                                                 \
+        int idx;                                         \
+        for (idx = 0; idx < length; ++idx) {             \
+            ACPI_READ_FIELD(qts, arr[idx], addr);        \
+        }                                                \
     } while (0)
 
-#define ACPI_READ_ARRAY(arr, addr)                               \
-    ACPI_READ_ARRAY_PTR(arr, sizeof(arr) / sizeof(arr[0]), addr)
+#define ACPI_READ_ARRAY(qts, arr, addr)                                 \
+    ACPI_READ_ARRAY_PTR(qts, arr, sizeof(arr) / sizeof(arr[0]), addr)
 
-#define ACPI_READ_TABLE_HEADER(table, addr)                      \
+#define ACPI_READ_TABLE_HEADER(qts, table, addr)                 \
     do {                                                         \
-        ACPI_READ_FIELD((table)->signature, addr);               \
-        ACPI_READ_FIELD((table)->length, addr);                  \
-        ACPI_READ_FIELD((table)->revision, addr);                \
-        ACPI_READ_FIELD((table)->checksum, addr);                \
-        ACPI_READ_ARRAY((table)->oem_id, addr);                  \
-        ACPI_READ_ARRAY((table)->oem_table_id, addr);            \
-        ACPI_READ_FIELD((table)->oem_revision, addr);            \
-        ACPI_READ_ARRAY((table)->asl_compiler_id, addr);         \
-        ACPI_READ_FIELD((table)->asl_compiler_revision, addr);   \
+        ACPI_READ_FIELD(qts, (table)->signature, addr);          \
+        ACPI_READ_FIELD(qts, (table)->length, addr);             \
+        ACPI_READ_FIELD(qts, (table)->revision, addr);           \
+        ACPI_READ_FIELD(qts, (table)->checksum, addr);           \
+        ACPI_READ_ARRAY(qts, (table)->oem_id, addr);             \
+        ACPI_READ_ARRAY(qts, (table)->oem_table_id, addr);       \
+        ACPI_READ_FIELD(qts, (table)->oem_revision, addr);       \
+        ACPI_READ_ARRAY(qts, (table)->asl_compiler_id, addr);    \
+        ACPI_READ_FIELD(qts, (table)->asl_compiler_revision, addr);     \
     } while (0)
 
 #define ACPI_ASSERT_CMP(actual, expected) do { \
@@ -70,18 +70,19 @@ typedef struct {
     g_assert_cmpstr(ACPI_ASSERT_CMP_str, ==, expected); \
 } while (0)
 
-#define ACPI_READ_GENERIC_ADDRESS(field, addr)       \
-    do {                                             \
-        ACPI_READ_FIELD((field).space_id, addr);     \
-        ACPI_READ_FIELD((field).bit_width, addr);    \
-        ACPI_READ_FIELD((field).bit_offset, addr);   \
-        ACPI_READ_FIELD((field).access_width, addr); \
-        ACPI_READ_FIELD((field).address, addr);      \
+#define ACPI_READ_GENERIC_ADDRESS(qts, field, addr)       \
+    do {                                                  \
+        ACPI_READ_FIELD(qts, (field).space_id, addr);     \
+        ACPI_READ_FIELD(qts, (field).bit_width, addr);    \
+        ACPI_READ_FIELD(qts, (field).bit_offset, addr);   \
+        ACPI_READ_FIELD(qts, (field).access_width, addr); \
+        ACPI_READ_FIELD(qts, (field).address, addr);      \
     } while (0)
 
 
 uint8_t acpi_calc_checksum(const uint8_t *data, int len);
-uint32_t acpi_find_rsdp_address(void);
-void acpi_parse_rsdp_table(uint32_t addr, AcpiRsdpDescriptor *rsdp_table);
+uint32_t acpi_find_rsdp_address(QTestState *qts);
+void acpi_parse_rsdp_table(QTestState *qts, uint32_t addr,
+                           AcpiRsdpDescriptor *rsdp_table);
 
 #endif  /* TEST_ACPI_UTILS_H */
diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c
index d661d9be62..fabbed94e6 100644
--- a/tests/bios-tables-test.c
+++ b/tests/bios-tables-test.c
@@ -39,6 +39,7 @@ typedef struct {
     struct smbios_21_entry_point smbios_ep_table;
     uint8_t *required_struct_types;
     int required_struct_types_len;
+    QTestState *qts;
 } test_data;
 
 static char disk[] = "tests/acpi-test-disk-XXXXXX";
@@ -78,7 +79,7 @@ static void free_test_data(test_data *data)
 
 static void test_acpi_rsdp_address(test_data *data)
 {
-    uint32_t off = acpi_find_rsdp_address();
+    uint32_t off = acpi_find_rsdp_address(data->qts);
     g_assert_cmphex(off, <, 0x100000);
     data->rsdp_addr = off;
 }
@@ -88,7 +89,7 @@ static void test_acpi_rsdp_table(test_data *data)
     AcpiRsdpDescriptor *rsdp_table = &data->rsdp_table;
     uint32_t addr = data->rsdp_addr;
 
-    acpi_parse_rsdp_table(addr, rsdp_table);
+    acpi_parse_rsdp_table(data->qts, addr, rsdp_table);
 
     /* rsdp checksum is not for the whole table, but for the first 20 bytes */
     g_assert(!acpi_calc_checksum((uint8_t *)rsdp_table, 20));
@@ -104,7 +105,7 @@ static void test_acpi_rsdt_table(test_data *data)
     uint32_t rsdt_table_length;
 
     /* read the header */
-    ACPI_READ_TABLE_HEADER(rsdt_table, addr);
+    ACPI_READ_TABLE_HEADER(data->qts, rsdt_table, addr);
     ACPI_ASSERT_CMP(rsdt_table->signature, "RSDT");
 
     rsdt_table_length = le32_to_cpu(rsdt_table->length);
@@ -116,7 +117,7 @@ static void test_acpi_rsdt_table(test_data *data)
 
     /* get the addresses of the tables pointed by rsdt */
     tables = g_new0(uint32_t, tables_nr);
-    ACPI_READ_ARRAY_PTR(tables, tables_nr, addr);
+    ACPI_READ_ARRAY_PTR(data->qts, tables, tables_nr, addr);
 
     checksum = acpi_calc_checksum((uint8_t *)rsdt_table, rsdt_table_length) +
                acpi_calc_checksum((uint8_t *)tables,
@@ -135,11 +136,11 @@ static void fadt_fetch_facs_and_dsdt_ptrs(test_data *data)
 
     /* FADT table comes first */
     addr = le32_to_cpu(data->rsdt_tables_addr[0]);
-    ACPI_READ_TABLE_HEADER(&hdr, addr);
+    ACPI_READ_TABLE_HEADER(data->qts, &hdr, addr);
     ACPI_ASSERT_CMP(hdr.signature, "FACP");
 
-    ACPI_READ_FIELD(data->facs_addr, addr);
-    ACPI_READ_FIELD(data->dsdt_addr, addr);
+    ACPI_READ_FIELD(data->qts, data->facs_addr, addr);
+    ACPI_READ_FIELD(data->qts, data->dsdt_addr, addr);
 }
 
 static void sanitize_fadt_ptrs(test_data *data)
@@ -182,13 +183,13 @@ static void test_acpi_facs_table(test_data *data)
     AcpiFacsDescriptorRev1 *facs_table = &data->facs_table;
     uint32_t addr = le32_to_cpu(data->facs_addr);
 
-    ACPI_READ_FIELD(facs_table->signature, addr);
-    ACPI_READ_FIELD(facs_table->length, addr);
-    ACPI_READ_FIELD(facs_table->hardware_signature, addr);
-    ACPI_READ_FIELD(facs_table->firmware_waking_vector, addr);
-    ACPI_READ_FIELD(facs_table->global_lock, addr);
-    ACPI_READ_FIELD(facs_table->flags, addr);
-    ACPI_READ_ARRAY(facs_table->resverved3, addr);
+    ACPI_READ_FIELD(data->qts, facs_table->signature, addr);
+    ACPI_READ_FIELD(data->qts, facs_table->length, addr);
+    ACPI_READ_FIELD(data->qts, facs_table->hardware_signature, addr);
+    ACPI_READ_FIELD(data->qts, facs_table->firmware_waking_vector, addr);
+    ACPI_READ_FIELD(data->qts, facs_table->global_lock, addr);
+    ACPI_READ_FIELD(data->qts, facs_table->flags, addr);
+    ACPI_READ_ARRAY(data->qts, facs_table->resverved3, addr);
 
     ACPI_ASSERT_CMP(facs_table->signature, "FACS");
 }
@@ -197,17 +198,17 @@ static void test_acpi_facs_table(test_data *data)
  *   load ACPI table at @addr into table descriptor @sdt_table
  *   and check that header checksum matches actual one.
  */
-static void fetch_table(AcpiSdtTable *sdt_table, uint32_t addr)
+static void fetch_table(QTestState *qts, AcpiSdtTable *sdt_table, uint32_t addr)
 {
     uint8_t checksum;
 
     memset(sdt_table, 0, sizeof(*sdt_table));
-    ACPI_READ_TABLE_HEADER(&sdt_table->header, addr);
+    ACPI_READ_TABLE_HEADER(qts, &sdt_table->header, addr);
 
     sdt_table->aml_len = le32_to_cpu(sdt_table->header.length)
                          - sizeof(AcpiTableHeader);
     sdt_table->aml = g_malloc0(sdt_table->aml_len);
-    ACPI_READ_ARRAY_PTR(sdt_table->aml, sdt_table->aml_len, addr);
+    ACPI_READ_ARRAY_PTR(qts, sdt_table->aml, sdt_table->aml_len, addr);
 
     checksum = acpi_calc_checksum((uint8_t *)sdt_table,
                                   sizeof(AcpiTableHeader)) +
@@ -221,7 +222,7 @@ static void test_acpi_dsdt_table(test_data *data)
     AcpiSdtTable dsdt_table;
     uint32_t addr = le32_to_cpu(data->dsdt_addr);
 
-    fetch_table(&dsdt_table, addr);
+    fetch_table(data->qts, &dsdt_table, addr);
     ACPI_ASSERT_CMP(dsdt_table.header.signature, "DSDT");
 
     /* Since DSDT isn't in RSDT, add DSDT to ASL test tables list manually */
@@ -239,7 +240,7 @@ static void fetch_rsdt_referenced_tables(test_data *data)
         uint32_t addr;
 
         addr = le32_to_cpu(data->rsdt_tables_addr[i]);
-        fetch_table(&ssdt_table, addr);
+        fetch_table(data->qts, &ssdt_table, addr);
 
         /* Add table to ASL test tables list */
         g_array_append_val(data->tables, ssdt_table);
@@ -482,32 +483,32 @@ static bool smbios_ep_table_ok(test_data *data)
     struct smbios_21_entry_point *ep_table = &data->smbios_ep_table;
     uint32_t addr = data->smbios_ep_addr;
 
-    ACPI_READ_ARRAY(ep_table->anchor_string, addr);
+    ACPI_READ_ARRAY(data->qts, ep_table->anchor_string, addr);
     if (memcmp(ep_table->anchor_string, "_SM_", 4)) {
         return false;
     }
-    ACPI_READ_FIELD(ep_table->checksum, addr);
-    ACPI_READ_FIELD(ep_table->length, addr);
-    ACPI_READ_FIELD(ep_table->smbios_major_version, addr);
-    ACPI_READ_FIELD(ep_table->smbios_minor_version, addr);
-    ACPI_READ_FIELD(ep_table->max_structure_size, addr);
-    ACPI_READ_FIELD(ep_table->entry_point_revision, addr);
-    ACPI_READ_ARRAY(ep_table->formatted_area, addr);
-    ACPI_READ_ARRAY(ep_table->intermediate_anchor_string, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->checksum, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->length, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->smbios_major_version, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->smbios_minor_version, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->max_structure_size, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->entry_point_revision, addr);
+    ACPI_READ_ARRAY(data->qts, ep_table->formatted_area, addr);
+    ACPI_READ_ARRAY(data->qts, ep_table->intermediate_anchor_string, addr);
     if (memcmp(ep_table->intermediate_anchor_string, "_DMI_", 5)) {
         return false;
     }
-    ACPI_READ_FIELD(ep_table->intermediate_checksum, addr);
-    ACPI_READ_FIELD(ep_table->structure_table_length, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->intermediate_checksum, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->structure_table_length, addr);
     if (ep_table->structure_table_length == 0) {
         return false;
     }
-    ACPI_READ_FIELD(ep_table->structure_table_address, addr);
-    ACPI_READ_FIELD(ep_table->number_of_structures, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->structure_table_address, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->number_of_structures, addr);
     if (ep_table->number_of_structures == 0) {
         return false;
     }
-    ACPI_READ_FIELD(ep_table->smbios_bcd_revision, addr);
+    ACPI_READ_FIELD(data->qts, ep_table->smbios_bcd_revision, addr);
     if (acpi_calc_checksum((uint8_t *)ep_table, sizeof *ep_table) ||
         acpi_calc_checksum((uint8_t *)ep_table + 0x10,
                            sizeof *ep_table - 0x10)) {
@@ -526,7 +527,7 @@ static void test_smbios_entry_point(test_data *data)
         int i;
 
         for (i = 0; i < sizeof sig - 1; ++i) {
-            sig[i] = readb(off + i);
+            sig[i] = qtest_readb(data->qts, off + i);
         }
 
         if (!memcmp(sig, "_SM_", sizeof sig)) {
@@ -569,9 +570,9 @@ static void test_smbios_structs(test_data *data)
     for (i = 0; i < le16_to_cpu(ep_table->number_of_structures); i++) {
 
         /* grab type and formatted area length from struct header */
-        type = readb(addr);
+        type = qtest_readb(data->qts, addr);
         g_assert_cmpuint(type, <=, SMBIOS_MAX_TYPE);
-        len = readb(addr + 1);
+        len = qtest_readb(data->qts, addr + 1);
 
         /* single-instance structs must not have been encountered before */
         if (smbios_single_instance(type)) {
@@ -583,7 +584,7 @@ static void test_smbios_structs(test_data *data)
         prv = crt = 1;
         while (prv || crt) {
             prv = crt;
-            crt = readb(addr + len);
+            crt = qtest_readb(data->qts, addr + len);
             len++;
         }
 
@@ -620,9 +621,9 @@ static void test_acpi_one(const char *params, test_data *data)
                            data->machine, "kvm:tcg",
                            params ? params : "", disk);
 
-    qtest_start(args);
+    data->qts = qtest_init(args);
 
-    boot_sector_test(global_qtest);
+    boot_sector_test(data->qts);
 
     data->tables = g_array_new(false, true, sizeof(AcpiSdtTable));
     test_acpi_rsdp_address(data);
@@ -646,7 +647,8 @@ static void test_acpi_one(const char *params, test_data *data)
     test_smbios_entry_point(data);
     test_smbios_structs(data);
 
-    qtest_quit(global_qtest);
+    assert(!global_qtest);
+    qtest_quit(data->qts);
     g_free(args);
 }
 
diff --git a/tests/vmgenid-test.c b/tests/vmgenid-test.c
index 0a6fb55f2e..c9c4f8c375 100644
--- a/tests/vmgenid-test.c
+++ b/tests/vmgenid-test.c
@@ -31,7 +31,7 @@ typedef struct {
     uint32_t vgia_val;
 } QEMU_PACKED VgidTable;
 
-static uint32_t acpi_find_vgia(void)
+static uint32_t acpi_find_vgia(QTestState *qts)
 {
     uint32_t rsdp_offset;
     uint32_t guid_offset = 0;
@@ -45,18 +45,18 @@ static uint32_t acpi_find_vgia(void)
     int i;
 
     /* Wait for guest firmware to finish and start the payload. */
-    boot_sector_test(global_qtest);
+    boot_sector_test(qts);
 
     /* Tables should be initialized now. */
-    rsdp_offset = acpi_find_rsdp_address();
+    rsdp_offset = acpi_find_rsdp_address(qts);
 
     g_assert_cmphex(rsdp_offset, <, RSDP_ADDR_INVALID);
 
-    acpi_parse_rsdp_table(rsdp_offset, &rsdp_table);
+    acpi_parse_rsdp_table(qts, rsdp_offset, &rsdp_table);
 
     rsdt = le32_to_cpu(rsdp_table.rsdt_physical_address);
     /* read the header */
-    ACPI_READ_TABLE_HEADER(&rsdt_table, rsdt);
+    ACPI_READ_TABLE_HEADER(qts, &rsdt_table, rsdt);
     ACPI_ASSERT_CMP(rsdt_table.signature, "RSDT");
     rsdt_table_length = le32_to_cpu(rsdt_table.length);
 
@@ -67,22 +67,22 @@ static uint32_t acpi_find_vgia(void)
 
     /* get the addresses of the tables pointed by rsdt */
     tables = g_new0(uint32_t, tables_nr);
-    ACPI_READ_ARRAY_PTR(tables, tables_nr, rsdt);
+    ACPI_READ_ARRAY_PTR(qts, tables, tables_nr, rsdt);
 
     for (i = 0; i < tables_nr; i++) {
         uint32_t addr = le32_to_cpu(tables[i]);
-        ACPI_READ_TABLE_HEADER(&ssdt_table, addr);
+        ACPI_READ_TABLE_HEADER(qts, &ssdt_table, addr);
         if (!strncmp((char *)ssdt_table.oem_table_id, "VMGENID", 7)) {
             /* the first entry in the table should be VGIA
              * That's all we need
              */
-            ACPI_READ_FIELD(vgid_table.name_op, addr);
+            ACPI_READ_FIELD(qts, vgid_table.name_op, addr);
             g_assert(vgid_table.name_op == 0x08);  /* name */
-            ACPI_READ_ARRAY(vgid_table.vgia, addr);
+            ACPI_READ_ARRAY(qts, vgid_table.vgia, addr);
             g_assert(memcmp(vgid_table.vgia, "VGIA", 4) == 0);
-            ACPI_READ_FIELD(vgid_table.val_op, addr);
+            ACPI_READ_FIELD(qts, vgid_table.val_op, addr);
             g_assert(vgid_table.val_op == 0x0C);  /* dword */
-            ACPI_READ_FIELD(vgid_table.vgia_val, addr);
+            ACPI_READ_FIELD(qts, vgid_table.vgia_val, addr);
             /* The GUID is written at a fixed offset into the fw_cfg file
              * in order to implement the "OVMF SDT Header probe suppressor"
              * see docs/specs/vmgenid.txt for more details
@@ -100,7 +100,7 @@ static void read_guid_from_memory(QemuUUID *guid)
     uint32_t vmgenid_addr;
     int i;
 
-    vmgenid_addr = acpi_find_vgia();
+    vmgenid_addr = acpi_find_vgia(global_qtest);
     g_assert(vmgenid_addr);
 
     /* Read the GUID directly from guest memory */