[Qemu-devel] [PATCH v2 8/8] tests: acpi: use AcpiSdtTable::aml instead of AcpiSdtTable::header::signature

[Igor Mammedov]

AcpiSdtTable::header::signature is the only remained field from
AcpiTableHeader structure used by tests. Instead of using packed
structure to access signature, just read it directly from table
blob and remove no longer used AcpiSdtTable::header / union and
keep only AcpiSdtTable::aml byte array.

Signed-off-by: Igor Mammedov <address@hidden>
---
 tests/acpi-utils.h       |  6 +-----
 tests/bios-tables-test.c | 20 +++++++++-----------
 2 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/tests/acpi-utils.h b/tests/acpi-utils.h
index cb7183e..ef388bb 100644
--- a/tests/acpi-utils.h
+++ b/tests/acpi-utils.h
@@ -13,15 +13,11 @@
 #ifndef TEST_ACPI_UTILS_H
 #define TEST_ACPI_UTILS_H
 
-#include "hw/acpi/acpi-defs.h"
 #include "libqtest.h"
 
 /* DSDT and SSDTs format */
 typedef struct {
-    union {
-        AcpiTableHeader *header;
-        uint8_t *aml;            /* aml bytecode from guest */
-    };
+    uint8_t *aml;            /* aml bytecode from guest */
     uint32_t aml_len;
     gchar *aml_file;
     gchar *asl;            /* asl code generated from aml */
diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c
index 9139dec..0bf7164 100644
--- a/tests/bios-tables-test.c
+++ b/tests/bios-tables-test.c
@@ -44,6 +44,11 @@ static const char *iasl = stringify(CONFIG_IASL);
 static const char *iasl;
 #endif
 
+static bool compare_signature(const AcpiSdtTable *sdt, const char *signature)
+{
+   return !memcmp(sdt->aml, signature, 4);
+}
+
 static void cleanup_table_descriptor(AcpiSdtTable *table)
 {
     g_free(table->aml);
@@ -130,7 +135,7 @@ static void test_acpi_fadt_table(test_data *data)
     uint8_t *fadt_aml = table.aml;
     uint32_t fadt_len = table.aml_len;
 
-    ACPI_ASSERT_CMP(table.header->signature, "FACP");
+    g_assert(compare_signature(&table, "FACP"));
 
     /* Since DSDT/FACS isn't in RSDT, add them to ASL test list manually */
     acpi_fetch_table(data->qts, &table.aml, &table.aml_len,
@@ -169,7 +174,7 @@ static void dump_aml_files(test_data *data, bool rebuild)
 
         if (rebuild) {
             aml_file = g_strdup_printf("%s/%s/%.4s%s", data_dir, data->machine,
-                                       (gchar *)&sdt->header->signature, ext);
+                                       sdt->aml, ext);
             fd = g_open(aml_file, O_WRONLY|O_TRUNC|O_CREAT,
                         S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
         } else {
@@ -187,11 +192,6 @@ static void dump_aml_files(test_data *data, bool rebuild)
     }
 }
 
-static bool compare_signature(AcpiSdtTable *sdt, const char *signature)
-{
-   return !memcmp(&sdt->header->signature, signature, 4);
-}
-
 static bool load_asl(GArray *sdts, AcpiSdtTable *sdt)
 {
     AcpiSdtTable *temp;
@@ -290,7 +290,7 @@ static GArray *load_expected_aml(test_data *data)
 
 try_again:
         aml_file = g_strdup_printf("%s/%s/%.4s%s", data_dir, data->machine,
-                                   (gchar *)&sdt->header->signature, ext);
+                                   sdt->aml, ext);
         if (getenv("V")) {
             fprintf(stderr, "Looking for expected file '%s'\n", aml_file);
         }
@@ -350,14 +350,12 @@ static void test_acpi_asl(test_data *data)
                 fprintf(stderr,
                         "Warning! iasl couldn't parse the expected aml\n");
             } else {
-                uint32_t signature = cpu_to_le32(exp_sdt->header->signature);
                 sdt->tmp_files_retain = true;
                 exp_sdt->tmp_files_retain = true;
                 fprintf(stderr,
                         "acpi-test: Warning! %.4s mismatch. "
                         "Actual [asl:%s, aml:%s], Expected [asl:%s, 
aml:%s].\n",
-                        (gchar *)&signature,
-                        sdt->asl_file, sdt->aml_file,
+                        exp_sdt->aml, sdt->asl_file, sdt->aml_file,
                         exp_sdt->asl_file, exp_sdt->aml_file);
                 if (getenv("V")) {
                     const char *diff_cmd = getenv("DIFF");
-- 
2.7.4