The test enables intel_iommu on q35 and reads the DMAR table and its only
DRHC structure (for now), checking only the header and checksums.
Signed-off-by: Vasilis Liaskovitis <vlias...@gmail.com>
---
tests/bios-tables-test.c | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c
index 9e4d205..f09b0cb 100644
--- a/tests/bios-tables-test.c
+++ b/tests/bios-tables-test.c
@@ -45,6 +45,8 @@ typedef struct {
AcpiRsdtDescriptorRev1 rsdt_table;
AcpiFadtDescriptorRev1 fadt_table;
AcpiFacsDescriptorRev1 facs_table;
+ AcpiTableDmar dmar_table;
+ AcpiDmarHardwareUnit drhd;
uint32_t *rsdt_tables_addr;
int rsdt_tables_nr;
GArray *tables;
@@ -371,6 +373,33 @@ static void test_acpi_dsdt_table(test_data *data)
g_array_append_val(data->tables, dsdt_table);
}
+static void test_acpi_dmar_table(test_data *data)
+{
+ AcpiTableDmar *dmar_table = &data->dmar_table;
+ AcpiDmarHardwareUnit *drhd = &data->drhd;
+ struct AcpiTableHeader *header = (struct AcpiTableHeader *) dmar_table;
+ int tables_nr = data->rsdt_tables_nr - 1;
+ uint32_t addr = data->rsdt_tables_addr[tables_nr]; /* dmar is last */
+
+ memset(dmar_table, 0, sizeof(*dmar_table));
+ ACPI_READ_TABLE_HEADER(dmar_table, addr);
+ ACPI_ASSERT_CMP(header->signature, "DMAR");
+
+ ACPI_READ_FIELD(dmar_table->host_address_width, addr);
+ ACPI_READ_FIELD(dmar_table->flags, addr);
+ ACPI_READ_ARRAY_PTR(dmar_table->reserved, 10, addr);
+
+ memset(drhd, 0, sizeof(*drhd));
+ ACPI_READ_FIELD(drhd->type, addr);
+ ACPI_READ_FIELD(drhd->length, addr);
+ ACPI_READ_FIELD(drhd->flags, addr);
+ ACPI_READ_FIELD(drhd->pci_segment, addr);
+ ACPI_READ_FIELD(drhd->address, addr);
+ g_assert(!acpi_checksum((uint8_t *)dmar_table, sizeof(AcpiTableDmar) +
+ drhd->length));
+
+}
+
static void test_acpi_tables(test_data *data)
{
int tables_nr = data->rsdt_tables_nr - 1; /* fadt is first */
@@ -747,6 +776,9 @@ static void test_acpi_one(const char *params, test_data
*data)
test_acpi_fadt_table(data);
test_acpi_facs_table(data);
test_acpi_dsdt_table(data);
+ if (strstr(params, "iommu=on")) {
+ test_acpi_dmar_table(data);
+ }
test_acpi_tables(data);
if (iasl) {
@@ -779,7 +811,7 @@ static void test_acpi_tcg(void)
memset(&data, 0, sizeof(data));
data.machine = MACHINE_Q35;
- test_acpi_one("-machine q35,accel=tcg", &data);
+ test_acpi_one("-machine q35,accel=tcg,iommu=on", &data);
free_test_data(&data);
}
--
1.9.1
