@@ -239,6 +239,7 @@ check-qtest-i386-y += tests/usb-hcd-xhci-test$(EXESUF)
gcov-files-i386-y += hw/usb/hcd-xhci.c
check-qtest-i386-y += tests/pc-cpu-test$(EXESUF)
check-qtest-i386-y += tests/q35-test$(EXESUF)
+check-qtest-i386-y += tests/vmgenid-test$(EXESUF)
gcov-files-i386-y += hw/pci-host/q35.c
check-qtest-i386-$(CONFIG_VHOST_NET_TEST_i386) += tests/vhost-user-test$(EXESUF)
ifeq ($(CONFIG_VHOST_NET_TEST_i386),)
@@ -715,6 +716,7 @@ tests/ivshmem-test$(EXESUF): tests/ivshmem-test.o contrib/ivshmem-server/ivshmem
tests/vhost-user-bridge$(EXESUF): tests/vhost-user-bridge.o contrib/libvhost-user/libvhost-user.o $(test-util-obj-y)
tests/test-uuid$(EXESUF): tests/test-uuid.o $(test-util-obj-y)
tests/test-arm-mptimer$(EXESUF): tests/test-arm-mptimer.o
+tests/vmgenid-test$(EXESUF): tests/vmgenid-test.o
tests/migration/stress$(EXESUF): tests/migration/stress.o
$(call quiet-command, $(LINKPROG) -static -O3 $(PTHREAD_LIB) -o $@ $< ,"LINK","$(TARGET_DIR)$@")
new file mode 100644
@@ -0,0 +1,184 @@
+/*
+ * QTest testcase for VM Generation ID
+ *
+ * Copyright (c) 2016 Red Hat, Inc.
+ * Copyright (c) 2017 Skyport Systems
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <glib.h>
+#include <string.h>
+#include <unistd.h>
+#include "qemu/osdep.h"
+#include "qemu/bitmap.h"
+#include "qemu/uuid.h"
+#include "hw/acpi/acpi-defs.h"
+#include "acpi-utils.h"
+#include "libqtest.h"
+
+#define VGID_GUID "324e6eaf-d1d1-4bf6-bf41-b9bb6c91fb87"
+
+static uint64_t vgia;
+
+typedef struct {
+ AcpiTableHeader header;
+ gchar name_op;
+ gchar vgia[4];
+ gchar val_op;
+ uint64_t vgia_val;
+} QEMU_PACKED VgidTable;
+
+static uint64_t find_vgia(void)
+{
+ uint32_t off;
+ AcpiRsdpDescriptor rsdp_table;
+ uint32_t rsdt;
+ AcpiRsdtDescriptorRev1 rsdt_table;
+ int tables_nr;
+ uint32_t *tables;
+ AcpiTableHeader ssdt_table;
+ VgidTable vgid_table;
+ int i;
+
+ /* First, find the RSDP */
+ for (off = 0xf0000; off < 0x100000; off += 0x10) {
+ uint8_t sig[] = "RSD PTR ";
+
+ 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);
+
+ /* Parse the RSDP header so we can find the RSDT */
+ ACPI_READ_FIELD(rsdp_table.signature, off);
+ ACPI_ASSERT_CMP64(rsdp_table.signature, "RSD PTR ");
+
+ ACPI_READ_FIELD(rsdp_table.checksum, off);
+ ACPI_READ_ARRAY(rsdp_table.oem_id, off);
+ ACPI_READ_FIELD(rsdp_table.revision, off);
+ ACPI_READ_FIELD(rsdp_table.rsdt_physical_address, off);
+
+ rsdt = rsdp_table.rsdt_physical_address;
+ /* read the header */
+ ACPI_READ_TABLE_HEADER(&rsdt_table, rsdt);
+ ACPI_ASSERT_CMP(rsdt_table.signature, "RSDT");
+
+ /* 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, rsdt);
+
+ for (i = 0; i < tables_nr; i++) {
+ ACPI_READ_TABLE_HEADER(&ssdt_table, tables[i]);
+ if (!strncmp((char *)ssdt_table.oem_table_id, "VMGENID", 7)) {
+ /* the first entry in the table should be VGIA
+ * That's all we need */
+ ACPI_READ_FIELD(vgid_table.name_op, tables[i]);
+ g_assert(vgid_table.name_op == 0x08); /* name */
+ ACPI_READ_ARRAY(vgid_table.vgia, tables[i]);
+ g_assert(memcmp(vgid_table.vgia, "VGIA", 4) == 0);
+ ACPI_READ_FIELD(vgid_table.val_op, tables[i]);
+ g_assert(vgid_table.val_op == 0x0E); /* qword */
+ ACPI_READ_FIELD(vgid_table.vgia_val, tables[i]);
+ return vgid_table.vgia_val;
+ }
+ }
+ return 0;
+}
+
+static void vmgenid_read_guid(uint8_t *guid)
+{
+ int i;
+
+ if (vgia == 0) {
+ vgia = find_vgia();
+ }
+ g_assert(vgia);
+
+ /* Read the GUID directly from guest memory */
+ for (i = 0; i < 16; i++) {
+ guid[i] = readb(vgia + i);
+ }
+}
+
+static void vmgenid_test(void)
+{
+ uint8_t measured[16];
+ QemuUUID expected;
+ g_assert(qemu_uuid_parse(VGID_GUID, &expected) == 0);
+ vmgenid_read_guid(measured);
+ g_assert(memcmp(measured, expected.data, sizeof(measured)) == 0);
+}
+
+static void vmgenid_set_guid_test(void)
+{
+ QDict *response;
+ gchar *cmd;
+ uint8_t measured[16];
+ QemuUUID expected;
+ g_assert(qemu_uuid_parse(VGID_GUID, &expected) == 0);
+ /* Change the GUID slightly */
+ expected.data[0] += 1;
+
+ cmd = g_strdup_printf("{ 'execute': 'qom-set', 'arguments': { "
+ "'path': '/machine/peripheral/testvgid', "
+ "'property': 'guid', 'value': '%s' } }",
+ qemu_uuid_unparse_strdup(&expected));
+ response = qmp(cmd);
+ g_assert(qdict_haskey(response, "return"));
+ QDECREF(response);
+
+ vmgenid_read_guid(measured);
+ g_assert(memcmp(measured, expected.data, sizeof(measured)) == 0);
+}
+
+static void vmgenid_set_guid_auto_test(void)
+{
+ QDict *response;
+ QemuUUID measured;
+ QemuUUID expected;
+
+ /* Read the initial value */
+ vmgenid_read_guid(expected.data);
+
+ /* Setting to 'auto' generates a random GUID */
+ response = qmp("{ 'execute': 'qom-set', 'arguments': { "
+ "'path': '/machine/peripheral/testvgid', "
+ "'property': 'guid', 'value': 'auto' } }");
+
+ g_assert(qdict_haskey(response, "return"));
+ QDECREF(response);
+
+ vmgenid_read_guid(measured.data);
+ g_assert(memcmp(measured.data, expected.data, sizeof(measured.data)) != 0);
+}
+
+int main(int argc, char **argv)
+{
+ int ret;
+
+ g_test_init(&argc, &argv, NULL);
+
+ qtest_start("-machine accel=tcg -device vmgenid,id=testvgid,"
+ "guid=" VGID_GUID);
+ qtest_add_func("/vmgenid/vmgenid", vmgenid_test);
+ qtest_add_func("/vmgenid/vmgenid/set-guid", vmgenid_set_guid_test);
+ qtest_add_func("/vmgenid/vmgenid/set-guid-auto",
+ vmgenid_set_guid_auto_test);
+ ret = g_test_run();
+
+ qtest_end();
+
+ return ret;
+}