test: Move qtests to a separate directory

The tests directory itself is pretty overcrowded, and it's hard to
see which test belongs to which test subsystem (unit, qtest, ...).
Let's move the qtests to a separate folder for more clarity.

Message-Id: <20191218103059.11729-6-thuth@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 185 insertions, 0 deletions

diff --git a/tests/qtest/vmgenid-test.c b/tests/qtest/vmgenid-test.c
new file mode 100644
index 0000000..efba76e
--- /dev/null
+++ b/tests/qtest/vmgenid-test.c
@@ -0,0 +1,185 @@
+/*
+ * 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 "qemu/osdep.h"
+#include "qemu/bitmap.h"
+#include "qemu/uuid.h"
+#include "hw/acpi/acpi-defs.h"
+#include "boot-sector.h"
+#include "acpi-utils.h"
+#include "libqtest.h"
+#include "qapi/qmp/qdict.h"
+
+#define VGID_GUID "324e6eaf-d1d1-4bf6-bf41-b9bb6c91fb87"
+#define VMGENID_GUID_OFFSET 40   /* allow space for
+                                  * OVMF SDT Header Probe Supressor
+                                  */
+#define RSDP_ADDR_INVALID 0x100000 /* RSDP must be below this address */
+
+static uint32_t acpi_find_vgia(QTestState *qts)
+{
+    uint32_t rsdp_offset;
+    uint32_t guid_offset = 0;
+    uint8_t rsdp_table[36 /* ACPI 2.0+ RSDP size */];
+    uint32_t rsdt_len, table_length;
+    uint8_t *rsdt, *ent;
+
+    /* Wait for guest firmware to finish and start the payload. */
+    boot_sector_test(qts);
+
+    /* Tables should be initialized now. */
+    rsdp_offset = acpi_find_rsdp_address(qts);
+
+    g_assert_cmphex(rsdp_offset, <, RSDP_ADDR_INVALID);
+
+
+    acpi_fetch_rsdp_table(qts, rsdp_offset, rsdp_table);
+    acpi_fetch_table(qts, &rsdt, &rsdt_len, &rsdp_table[16 /* RsdtAddress */],
+                     4, "RSDT", true);
+
+    ACPI_FOREACH_RSDT_ENTRY(rsdt, rsdt_len, ent, 4 /* Entry size */) {
+        uint8_t *table_aml;
+
+        acpi_fetch_table(qts, &table_aml, &table_length, ent, 4, NULL, true);
+        if (!memcmp(table_aml + 16 /* OEM Table ID */, "VMGENID", 7)) {
+            uint32_t vgia_val;
+            uint8_t *aml = &table_aml[36 /* AML byte-code start */];
+            /* the first entry in the table should be VGIA
+             * That's all we need
+             */
+            g_assert(aml[0 /* name_op*/] == 0x08);
+            g_assert(memcmp(&aml[1 /* name */], "VGIA", 4) == 0);
+            g_assert(aml[5 /* value op */] == 0x0C /* dword */);
+            memcpy(&vgia_val, &aml[6 /* value */], 4);
+
+            /* The GUID is written at a fixed offset into the fw_cfg file
+             * in order to implement the "OVMF SDT Header probe suppressor"
+             * see docs/specs/vmgenid.txt for more details
+             */
+            guid_offset = le32_to_cpu(vgia_val) + VMGENID_GUID_OFFSET;
+            g_free(table_aml);
+            break;
+        }
+        g_free(table_aml);
+    }
+    g_free(rsdt);
+    return guid_offset;
+}
+
+static void read_guid_from_memory(QTestState *qts, QemuUUID *guid)
+{
+    uint32_t vmgenid_addr;
+    int i;
+
+    vmgenid_addr = acpi_find_vgia(qts);
+    g_assert(vmgenid_addr);
+
+    /* Read the GUID directly from guest memory */
+    for (i = 0; i < 16; i++) {
+        guid->data[i] = qtest_readb(qts, vmgenid_addr + i);
+    }
+    /* The GUID is in little-endian format in the guest, while QEMU
+     * uses big-endian.  Swap after reading.
+     */
+    *guid = qemu_uuid_bswap(*guid);
+}
+
+static void read_guid_from_monitor(QTestState *qts, QemuUUID *guid)
+{
+    QDict *rsp, *rsp_ret;
+    const char *guid_str;
+
+    rsp = qtest_qmp(qts, "{ 'execute': 'query-vm-generation-id' }");
+    if (qdict_haskey(rsp, "return")) {
+        rsp_ret = qdict_get_qdict(rsp, "return");
+        g_assert(qdict_haskey(rsp_ret, "guid"));
+        guid_str = qdict_get_str(rsp_ret, "guid");
+        g_assert(qemu_uuid_parse(guid_str, guid) == 0);
+    }
+    qobject_unref(rsp);
+}
+
+static char disk[] = "tests/vmgenid-test-disk-XXXXXX";
+
+#define GUID_CMD(guid)                          \
+    "-accel kvm -accel tcg "                    \
+    "-device vmgenid,id=testvgid,guid=%s "      \
+    "-drive id=hd0,if=none,file=%s,format=raw " \
+    "-device ide-hd,drive=hd0 ", guid, disk
+
+static void vmgenid_set_guid_test(void)
+{
+    QemuUUID expected, measured;
+    QTestState *qts;
+
+    g_assert(qemu_uuid_parse(VGID_GUID, &expected) == 0);
+
+    qts = qtest_initf(GUID_CMD(VGID_GUID));
+
+    /* Read the GUID from accessing guest memory */
+    read_guid_from_memory(qts, &measured);
+    g_assert(memcmp(measured.data, expected.data, sizeof(measured.data)) == 0);
+
+    qtest_quit(qts);
+}
+
+static void vmgenid_set_guid_auto_test(void)
+{
+    QemuUUID measured;
+    QTestState *qts;
+
+    qts = qtest_initf(GUID_CMD("auto"));
+
+    read_guid_from_memory(qts, &measured);
+
+    /* Just check that the GUID is non-null */
+    g_assert(!qemu_uuid_is_null(&measured));
+
+    qtest_quit(qts);
+}
+
+static void vmgenid_query_monitor_test(void)
+{
+    QemuUUID expected, measured;
+    QTestState *qts;
+
+    g_assert(qemu_uuid_parse(VGID_GUID, &expected) == 0);
+
+    qts = qtest_initf(GUID_CMD(VGID_GUID));
+
+    /* Read the GUID via the monitor */
+    read_guid_from_monitor(qts, &measured);
+    g_assert(memcmp(measured.data, expected.data, sizeof(measured.data)) == 0);
+
+    qtest_quit(qts);
+}
+
+int main(int argc, char **argv)
+{
+    int ret;
+
+    ret = boot_sector_init(disk);
+    if (ret) {
+        return ret;
+    }
+
+    g_test_init(&argc, &argv, NULL);
+
+    qtest_add_func("/vmgenid/vmgenid/set-guid",
+                   vmgenid_set_guid_test);
+    qtest_add_func("/vmgenid/vmgenid/set-guid-auto",
+                   vmgenid_set_guid_auto_test);
+    qtest_add_func("/vmgenid/vmgenid/query-monitor",
+                   vmgenid_query_monitor_test);
+    ret = g_test_run();
+    boot_sector_cleanup(disk);
+
+    return ret;
+}