Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20190709' into staging

[qemu.git] / tests / acpi-utils.c

diff --git a/tests/acpi-utils.c b/tests/acpi-utils.c
index 7b444a7453e93aaf780eed9cf8106994e5cb7983..d2a202efcae46ad58123c06b429748c940be63f1 100644 (file)
--- a/tests/acpi-utils.c
+++ b/tests/acpi-utils.c
@@ -51,15 +51,97 @@ uint32_t acpi_find_rsdp_address(QTestState *qts)
     return off;
 }
 
-void acpi_parse_rsdp_table(QTestState *qts, uint32_t addr,
-                           AcpiRsdpDescriptor *rsdp_table)
+void acpi_fetch_rsdp_table(QTestState *qts, uint64_t addr, uint8_t *rsdp_table)
 {
-    ACPI_READ_FIELD(qts, rsdp_table->signature, addr);
-    ACPI_ASSERT_CMP64(rsdp_table->signature, "RSD PTR ");
-
-    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);
+    uint8_t revision;
+
+    /* Read mandatory revision 0 table data (20 bytes) first */
+    qtest_memread(qts, addr, rsdp_table, 20);
+    revision = rsdp_table[15 /* Revision offset */];
+
+    switch (revision) {
+    case 0: /* ACPI 1.0 RSDP */
+        break;
+    case 2: /* ACPI 2.0+ RSDP */
+        /* Read the rest of the RSDP table */
+        qtest_memread(qts, addr + 20, rsdp_table + 20, 16);
+        break;
+    default:
+        g_assert_not_reached();
+    }
+
+    ACPI_ASSERT_CMP64(*((uint64_t *)(rsdp_table)), "RSD PTR ");
+}
+
+/** acpi_fetch_table
+ *  load ACPI table at @addr_ptr offset pointer into buffer and return it in
+ *  @aml, its length in @aml_len and check that signature/checksum matches
+ *  actual one.
+ */
+void acpi_fetch_table(QTestState *qts, uint8_t **aml, uint32_t *aml_len,
+                      const uint8_t *addr_ptr, int addr_size, const char *sig,
+                      bool verify_checksum)
+{
+    uint32_t len;
+    uint64_t addr = 0;
+
+    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);
+    /* get whole table */
+    qtest_memread(qts, addr, *aml, *aml_len);
+
+    if (sig) {
+        ACPI_ASSERT_CMP(**aml, sig);
+    }
+    if (verify_checksum) {
+        g_assert(!acpi_calc_checksum(*aml, *aml_len));
+    }
+}
+
+#define GUID_SIZE 16
+static const uint8_t AcpiTestSupportGuid[GUID_SIZE] = {
+       0xb1, 0xa6, 0x87, 0xab,
+       0x34, 0x20,
+       0xa0, 0xbd,
+       0x71, 0xbd, 0x37, 0x50, 0x07, 0x75, 0x77, 0x85 };
+
+typedef struct {
+    uint8_t signature_guid[GUID_SIZE];
+    uint64_t rsdp10;
+    uint64_t rsdp20;
+} __attribute__((packed)) UefiTestSupport;
+
+/* Wait at most 600 seconds (test is slow with TCG and --enable-debug) */
+#define TEST_DELAY (1 * G_USEC_PER_SEC / 10)
+#define TEST_CYCLES MAX((600 * G_USEC_PER_SEC / TEST_DELAY), 1)
+#define MB 0x100000ULL
+uint64_t acpi_find_rsdp_address_uefi(QTestState *qts, uint64_t start,
+                                     uint64_t size)
+{
+    int i, j;
+    uint8_t data[GUID_SIZE];
+
+    for (i = 0; i < TEST_CYCLES; ++i) {
+        for (j = 0; j < size / MB; j++) {
+            /* look for GUID at every 1Mb block */
+            uint64_t addr = start + j * MB;
+
+            qtest_memread(qts, addr, data, sizeof(data));
+            if (!memcmp(AcpiTestSupportGuid, data, sizeof(data))) {
+                UefiTestSupport ret;
+
+                qtest_memread(qts, addr, &ret, sizeof(ret));
+                ret.rsdp10 = le64_to_cpu(ret.rsdp10);
+                ret.rsdp20 = le64_to_cpu(ret.rsdp20);
+                return ret.rsdp20 ? ret.rsdp20 : ret.rsdp10;
+            }
+        }
+        g_usleep(TEST_DELAY);
+    }
+    g_assert_not_reached();
+    return 0;
 }