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tests: acpi: reuse fetch_table() for fetching FACS and DSDT 

It allows to remove a bit more of code duplication and
reuse common utility to get ACPI tables from guest (modulo RSDP).

While at it, consolidate signature checking into fetch_table() instead
of open-codding it.

Considering FACS is special and doesn't have checksum, make checksum
validation optin, the same goes for signature verification.

PS:
By pure accident, patch also fixes FACS not being tested against
reference table since it wasn't added to data::tables list.
But we managed not to regress it since reference file was added
by commit
   (d25979380 acpi unit-test: add test files)
back in 2013

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2018-12-27 15:13:30 +01:00 committed by Michael S. Tsirkin
parent 569afd8428
commit 59f9c6cc01
1 changed files with 30 additions and 48 deletions
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76
tests/bios-tables-test.c
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@ -28,9 +28,6 @@ typedef struct {
const char *variant;
uint32_t rsdp_addr;
uint8_t rsdp_table[36 /* ACPI 2.0+ RSDP size */];
uint32_t dsdt_addr;
uint32_t facs_addr;
AcpiFacsDescriptorRev1 facs_table;
GArray *tables;
uint32_t smbios_ep_addr;
struct smbios_21_entry_point smbios_ep_table;
@ -76,11 +73,18 @@ static void free_test_data(test_data *data)
}
/** fetch_table
* load ACPI table at @addr into table descriptor @sdt_table
* and check that header checksum matches actual one.
* load ACPI table at @addr_ptr offset pointer into table descriptor
* @sdt_table and check that signature/checksum matches actual one.
*/
static void fetch_table(QTestState *qts, AcpiSdtTable *sdt_table, uint32_t addr)
static void fetch_table(QTestState *qts, AcpiSdtTable *sdt_table,
uint8_t *addr_ptr, const char *sig,
bool verify_checksum)
{
uint32_t addr;
memcpy(&addr, addr_ptr , sizeof(addr));
addr = le32_to_cpu(addr);
qtest_memread(qts, addr + 4 /* Length of ACPI table */,
&sdt_table->aml_len, 4);
sdt_table->aml_len = le32_to_cpu(sdt_table->aml_len);
@ -88,7 +92,12 @@ static void fetch_table(QTestState *qts, AcpiSdtTable *sdt_table, uint32_t addr)
/* get whole table */
qtest_memread(qts, addr, sdt_table->aml, sdt_table->aml_len);
if (sig) {
ACPI_ASSERT_CMP(sdt_table->header->signature, sig);
}
if (verify_checksum) {
g_assert(!acpi_calc_checksum(sdt_table->aml, sdt_table->aml_len));
}
}
static void test_acpi_rsdp_address(test_data *data)
@ -123,15 +132,13 @@ static void test_acpi_rsdp_table(test_data *data)
static void test_acpi_rsdt_table(test_data *data)
{
uint32_t addr = acpi_get_rsdt_address(data->rsdp_table);
const int entry_size = 4 /* 32-bit Entry size */;
const int tables_off = 36 /* 1st Entry */;
AcpiSdtTable rsdt = {};
int i, table_len, table_nr;
uint32_t *entry;
fetch_table(data->qts, &rsdt, addr);
ACPI_ASSERT_CMP(rsdt.header->signature, "RSDT");
fetch_table(data->qts, &rsdt, &data->rsdp_table[16 /* RsdtAddress */],
"RSDT", true);
/* Load all tables and add to test list directly RSDT referenced tables */
table_len = le32_to_cpu(rsdt.header->length);
@ -139,9 +146,8 @@ static void test_acpi_rsdt_table(test_data *data)
for (i = 0; i < table_nr; i++) {
AcpiSdtTable ssdt_table = {};
entry = (uint32_t *)(rsdt.aml + tables_off + i * entry_size);
addr = le32_to_cpu(*entry);
fetch_table(data->qts, &ssdt_table, addr);
fetch_table(data->qts, &ssdt_table,
rsdt.aml + tables_off + i * entry_size, NULL, true);
/* Add table to ASL test tables list */
g_array_append_val(data->tables, ssdt_table);
@ -152,12 +158,18 @@ static void test_acpi_rsdt_table(test_data *data)
static void test_acpi_fadt_table(test_data *data)
{
/* FADT table is 1st */
AcpiSdtTable *fadt = &g_array_index(data->tables, typeof(*fadt), 0);
AcpiSdtTable table = g_array_index(data->tables, typeof(table), 0);
uint8_t *fadt_aml = table.aml;
ACPI_ASSERT_CMP(fadt->header->signature, "FACP");
ACPI_ASSERT_CMP(table.header->signature, "FACP");
memcpy(&data->facs_addr, fadt->aml + 36 /* FIRMWARE_CTRL */, 4);
memcpy(&data->dsdt_addr, fadt->aml + 40 /* DSDT */, 4);
/* Since DSDT/FACS isn't in RSDT, add them to ASL test list manually */
fetch_table(data->qts, &table, fadt_aml + 36 /* FIRMWARE_CTRL */,
"FACS", false);
g_array_append_val(data->tables, table);
fetch_table(data->qts, &table, fadt_aml + 40 /* DSDT */, "DSDT", true);
g_array_append_val(data->tables, table);
}
static void sanitize_fadt_ptrs(test_data *data)
@ -189,34 +201,6 @@ static void sanitize_fadt_ptrs(test_data *data)
}
}
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(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");
}
static void test_acpi_dsdt_table(test_data *data)
{
AcpiSdtTable dsdt_table = {};
uint32_t addr = le32_to_cpu(data->dsdt_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 */
g_array_append_val(data->tables, dsdt_table);
}
static void dump_aml_files(test_data *data, bool rebuild)
{
AcpiSdtTable *sdt;
@ -600,8 +584,6 @@ static void test_acpi_one(const char *params, test_data *data)
test_acpi_rsdp_table(data);
test_acpi_rsdt_table(data);
test_acpi_fadt_table(data);
test_acpi_facs_table(data);
test_acpi_dsdt_table(data);
sanitize_fadt_ptrs(data);