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authorMarcel Apfelbaum <marcel.a@redhat.com>2013-11-12 18:32:24 +0200
committerMichael S. Tsirkin <mst@redhat.com>2013-12-10 13:29:22 +0200
commit53333801e7bb41487147599e1b16b60ebea74695 (patch)
tree16b6ac91e9ddda1a20edaf56c19076d5dea39c57 /tests
parentb29ad07ee8ff44115ac9167bba51d1cf59f8649c (diff)
acpi unit-test: verify signature and checksum
Read all ACPI tables from guest - will be useful for further unit tests. Follow pointers between ACPI tables checking signature and format for correctness. Verify checksum for all tables. Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tests')
-rw-r--r--tests/acpi-test.c272
1 files changed, 252 insertions, 20 deletions
diff --git a/tests/acpi-test.c b/tests/acpi-test.c
index 468c4f5a57..d6ff66f7d8 100644
--- a/tests/acpi-test.c
+++ b/tests/acpi-test.c
@@ -13,13 +13,28 @@
#include <string.h>
#include <stdio.h>
#include <glib.h>
+#include "qemu-common.h"
#include "libqtest.h"
+#include "qemu/compiler.h"
+#include "hw/i386/acpi-defs.h"
+/* DSDT and SSDTs format */
typedef struct {
- const char *args;
- uint64_t expected_boot;
- uint64_t expected_reboot;
-} boot_order_test;
+ AcpiTableHeader header;
+ uint8_t *aml;
+ int aml_len;
+} AcpiSdtTable;
+
+typedef struct {
+ uint32_t rsdp_addr;
+ AcpiRsdpDescriptor rsdp_table;
+ AcpiRsdtDescriptorRev1 rsdt_table;
+ AcpiFadtDescriptorRev1 fadt_table;
+ uint32_t *rsdt_tables_addr;
+ int rsdt_tables_nr;
+ AcpiSdtTable dsdt_table;
+ AcpiSdtTable *ssdt_tables;
+} test_data;
#define LOW(x) ((x) & 0xff)
#define HIGH(x) ((x) >> 8)
@@ -28,6 +43,51 @@ typedef struct {
#define SIGNATURE_OFFSET 0x10
#define BOOT_SECTOR_ADDRESS 0x7c00
+#define ACPI_READ_FIELD(field, addr) \
+ do { \
+ switch (sizeof(field)) { \
+ case 1: \
+ field = readb(addr); \
+ break; \
+ case 2: \
+ field = le16_to_cpu(readw(addr)); \
+ break; \
+ case 4: \
+ field = le32_to_cpu(readl(addr)); \
+ break; \
+ case 8: \
+ field = le64_to_cpu(readq(addr)); \
+ break; \
+ default: \
+ g_assert(false); \
+ } \
+ 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); \
+ } \
+ } while (0);
+
+#define ACPI_READ_ARRAY(arr, addr) \
+ ACPI_READ_ARRAY_PTR(arr, sizeof(arr)/sizeof(arr[0]), addr)
+
+#define ACPI_READ_TABLE_HEADER(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); \
+ } while (0);
+
/* Boot sector code: write SIGNATURE into memory,
* then halt.
*/
@@ -57,6 +117,181 @@ static uint8_t boot_sector[0x200] = {
static const char *disk = "tests/acpi-test-disk.raw";
+static uint8_t acpi_checksum(const uint8_t *data, int len)
+{
+ int i;
+ uint8_t sum = 0;
+
+ for (i = 0; i < len; i++) {
+ sum += data[i];
+ }
+
+ return sum;
+}
+
+static void test_acpi_rsdp_address(test_data *data)
+{
+ uint32_t off;
+
+ /* OK, now find RSDP */
+ for (off = 0xf0000; off < 0x100000; off += 0x10) {
+ uint8_t sig[] = "RSD PTR ";
+ int i;
+
+ for (i = 0; i < sizeof sig - 1; ++i) {
+ sig[i] = readb(off + i);
+ }
+
+ if (!memcmp(sig, "RSD PTR ", sizeof sig)) {
+ break;
+ }
+ }
+
+ g_assert_cmphex(off, <, 0x100000);
+ data->rsdp_addr = off;
+}
+
+static void test_acpi_rsdp_table(test_data *data)
+{
+ AcpiRsdpDescriptor *rsdp_table = &data->rsdp_table;
+ uint32_t addr = data->rsdp_addr;
+
+ ACPI_READ_FIELD(rsdp_table->signature, addr);
+ g_assert_cmphex(rsdp_table->signature, ==, ACPI_RSDP_SIGNATURE);
+
+ 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);
+
+ /* rsdp checksum is not for the whole table, but for the first 20 bytes */
+ g_assert(!acpi_checksum((uint8_t *)rsdp_table, 20));
+}
+
+static void test_acpi_rsdt_table(test_data *data)
+{
+ AcpiRsdtDescriptorRev1 *rsdt_table = &data->rsdt_table;
+ uint32_t addr = data->rsdp_table.rsdt_physical_address;
+ uint32_t *tables;
+ int tables_nr;
+ uint8_t checksum;
+
+ /* read the header */
+ ACPI_READ_TABLE_HEADER(rsdt_table, addr);
+ g_assert_cmphex(rsdt_table->signature, ==, ACPI_RSDT_SIGNATURE);
+
+ /* compute the table entries in rsdt */
+ tables_nr = (rsdt_table->length - sizeof(AcpiRsdtDescriptorRev1)) /
+ sizeof(uint32_t);
+ g_assert_cmpint(tables_nr, >, 0);
+
+ /* get the addresses of the tables pointed by rsdt */
+ tables = g_new0(uint32_t, tables_nr);
+ ACPI_READ_ARRAY_PTR(tables, tables_nr, addr);
+
+ checksum = acpi_checksum((uint8_t *)rsdt_table, rsdt_table->length) +
+ acpi_checksum((uint8_t *)tables, tables_nr * sizeof(uint32_t));
+ g_assert(!checksum);
+
+ /* SSDT tables after FADT */
+ data->rsdt_tables_addr = tables;
+ data->rsdt_tables_nr = tables_nr;
+}
+
+static void test_acpi_fadt_table(test_data *data)
+{
+ AcpiFadtDescriptorRev1 *fadt_table = &data->fadt_table;
+ uint32_t addr;
+
+ /* FADT table comes first */
+ addr = data->rsdt_tables_addr[0];
+ ACPI_READ_TABLE_HEADER(fadt_table, addr);
+
+ ACPI_READ_FIELD(fadt_table->firmware_ctrl, addr);
+ ACPI_READ_FIELD(fadt_table->dsdt, addr);
+ ACPI_READ_FIELD(fadt_table->model, addr);
+ ACPI_READ_FIELD(fadt_table->reserved1, addr);
+ ACPI_READ_FIELD(fadt_table->sci_int, addr);
+ ACPI_READ_FIELD(fadt_table->smi_cmd, addr);
+ ACPI_READ_FIELD(fadt_table->acpi_enable, addr);
+ ACPI_READ_FIELD(fadt_table->acpi_disable, addr);
+ ACPI_READ_FIELD(fadt_table->S4bios_req, addr);
+ ACPI_READ_FIELD(fadt_table->reserved2, addr);
+ ACPI_READ_FIELD(fadt_table->pm1a_evt_blk, addr);
+ ACPI_READ_FIELD(fadt_table->pm1b_evt_blk, addr);
+ ACPI_READ_FIELD(fadt_table->pm1a_cnt_blk, addr);
+ ACPI_READ_FIELD(fadt_table->pm1b_cnt_blk, addr);
+ ACPI_READ_FIELD(fadt_table->pm2_cnt_blk, addr);
+ ACPI_READ_FIELD(fadt_table->pm_tmr_blk, addr);
+ ACPI_READ_FIELD(fadt_table->gpe0_blk, addr);
+ ACPI_READ_FIELD(fadt_table->gpe1_blk, addr);
+ ACPI_READ_FIELD(fadt_table->pm1_evt_len, addr);
+ ACPI_READ_FIELD(fadt_table->pm1_cnt_len, addr);
+ ACPI_READ_FIELD(fadt_table->pm2_cnt_len, addr);
+ ACPI_READ_FIELD(fadt_table->pm_tmr_len, addr);
+ ACPI_READ_FIELD(fadt_table->gpe0_blk_len, addr);
+ ACPI_READ_FIELD(fadt_table->gpe1_blk_len, addr);
+ ACPI_READ_FIELD(fadt_table->gpe1_base, addr);
+ ACPI_READ_FIELD(fadt_table->reserved3, addr);
+ ACPI_READ_FIELD(fadt_table->plvl2_lat, addr);
+ ACPI_READ_FIELD(fadt_table->plvl3_lat, addr);
+ ACPI_READ_FIELD(fadt_table->flush_size, addr);
+ ACPI_READ_FIELD(fadt_table->flush_stride, addr);
+ ACPI_READ_FIELD(fadt_table->duty_offset, addr);
+ ACPI_READ_FIELD(fadt_table->duty_width, addr);
+ ACPI_READ_FIELD(fadt_table->day_alrm, addr);
+ ACPI_READ_FIELD(fadt_table->mon_alrm, addr);
+ ACPI_READ_FIELD(fadt_table->century, addr);
+ ACPI_READ_FIELD(fadt_table->reserved4, addr);
+ ACPI_READ_FIELD(fadt_table->reserved4a, addr);
+ ACPI_READ_FIELD(fadt_table->reserved4b, addr);
+ ACPI_READ_FIELD(fadt_table->flags, addr);
+
+ g_assert_cmphex(fadt_table->signature, ==, ACPI_FACP_SIGNATURE);
+ g_assert(!acpi_checksum((uint8_t *)fadt_table, fadt_table->length));
+}
+
+static void test_dst_table(AcpiSdtTable *sdt_table, uint32_t addr)
+{
+ uint8_t checksum;
+
+ ACPI_READ_TABLE_HEADER(&sdt_table->header, addr);
+
+ sdt_table->aml_len = 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);
+
+ checksum = acpi_checksum((uint8_t *)sdt_table, sizeof(AcpiTableHeader)) +
+ acpi_checksum(sdt_table->aml, sdt_table->aml_len);
+ g_assert(!checksum);
+}
+
+static void test_acpi_dsdt_table(test_data *data)
+{
+ AcpiSdtTable *dsdt_table = &data->dsdt_table;
+ uint32_t addr = data->fadt_table.dsdt;
+
+ test_dst_table(dsdt_table, addr);
+ g_assert_cmphex(dsdt_table->header.signature, ==, ACPI_DSDT_SIGNATURE);
+}
+
+static void test_acpi_ssdt_tables(test_data *data)
+{
+ AcpiSdtTable *ssdt_tables;
+ int ssdt_tables_nr = data->rsdt_tables_nr - 1; /* fadt is first */
+ int i;
+
+ ssdt_tables = g_new0(AcpiSdtTable, ssdt_tables_nr);
+ for (i = 0; i < ssdt_tables_nr; i++) {
+ AcpiSdtTable *ssdt_table = &ssdt_tables[i];
+ uint32_t addr = data->rsdt_tables_addr[i + 1]; /* fadt is first */
+
+ test_dst_table(ssdt_table, addr);
+ }
+ data->ssdt_tables = ssdt_tables;
+}
+
static void test_acpi_one(const char *params)
{
char *args;
@@ -64,9 +299,9 @@ static void test_acpi_one(const char *params)
uint8_t signature_high;
uint16_t signature;
int i;
- uint32_t off;
-
+ test_data data;
+ memset(&data, 0, sizeof(data));
args = g_strdup_printf("-net none -display none %s %s",
params ? params : "", disk);
qtest_start(args);
@@ -90,22 +325,19 @@ static void test_acpi_one(const char *params)
}
g_assert_cmphex(signature, ==, SIGNATURE);
- /* OK, now find RSDP */
- for (off = 0xf0000; off < 0x100000; off += 0x10)
- {
- uint8_t sig[] = "RSD PTR ";
- int i;
-
- for (i = 0; i < sizeof sig - 1; ++i) {
- sig[i] = readb(off + i);
- }
+ test_acpi_rsdp_address(&data);
+ test_acpi_rsdp_table(&data);
+ test_acpi_rsdt_table(&data);
+ test_acpi_fadt_table(&data);
+ test_acpi_dsdt_table(&data);
+ test_acpi_ssdt_tables(&data);
- if (!memcmp(sig, "RSD PTR ", sizeof sig)) {
- break;
- }
+ g_free(data.rsdt_tables_addr);
+ for (i = 0; i < (data.rsdt_tables_nr - 1); ++i) {
+ g_free(data.ssdt_tables[i].aml);
}
-
- g_assert_cmphex(off, <, 0x100000);
+ g_free(data.ssdt_tables);
+ g_free(data.dsdt_table.aml);
qtest_quit(global_qtest);
g_free(args);