mirror of https://gitee.com/openkylin/qemu.git
273 lines
6.6 KiB
C
273 lines
6.6 KiB
C
#include "qemu/osdep.h"
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#include <sys/wait.h>
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#include "libqtest.h"
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#include "libqos/libqos.h"
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#include "libqos/pci.h"
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/*** Test Setup & Teardown ***/
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/**
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* Launch QEMU with the given command line,
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* and then set up interrupts and our guest malloc interface.
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*/
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QOSState *qtest_vboot(QOSOps *ops, const char *cmdline_fmt, va_list ap)
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{
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char *cmdline;
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struct QOSState *qs = g_malloc(sizeof(QOSState));
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cmdline = g_strdup_vprintf(cmdline_fmt, ap);
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qs->qts = qtest_start(cmdline);
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qs->ops = ops;
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if (ops) {
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if (ops->init_allocator) {
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qs->alloc = ops->init_allocator(ALLOC_NO_FLAGS);
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}
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if (ops->qpci_init && qs->alloc) {
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qs->pcibus = ops->qpci_init(qs->alloc);
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}
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}
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g_free(cmdline);
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return qs;
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}
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/**
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* Launch QEMU with the given command line,
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* and then set up interrupts and our guest malloc interface.
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*/
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QOSState *qtest_boot(QOSOps *ops, const char *cmdline_fmt, ...)
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{
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QOSState *qs;
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va_list ap;
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va_start(ap, cmdline_fmt);
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qs = qtest_vboot(ops, cmdline_fmt, ap);
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va_end(ap);
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return qs;
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}
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/**
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* Tear down the QEMU instance.
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*/
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void qtest_common_shutdown(QOSState *qs)
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{
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if (qs->ops) {
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if (qs->pcibus && qs->ops->qpci_free) {
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qs->ops->qpci_free(qs->pcibus);
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qs->pcibus = NULL;
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}
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if (qs->alloc && qs->ops->uninit_allocator) {
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qs->ops->uninit_allocator(qs->alloc);
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qs->alloc = NULL;
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}
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}
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qtest_quit(qs->qts);
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g_free(qs);
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}
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void qtest_shutdown(QOSState *qs)
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{
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if (qs->ops && qs->ops->shutdown) {
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qs->ops->shutdown(qs);
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} else {
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qtest_common_shutdown(qs);
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}
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}
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void set_context(QOSState *s)
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{
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global_qtest = s->qts;
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}
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static QDict *qmp_execute(const char *command)
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{
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char *fmt;
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QDict *rsp;
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fmt = g_strdup_printf("{ 'execute': '%s' }", command);
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rsp = qmp(fmt);
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g_free(fmt);
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return rsp;
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}
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void migrate(QOSState *from, QOSState *to, const char *uri)
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{
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const char *st;
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char *s;
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QDict *rsp, *sub;
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bool running;
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set_context(from);
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/* Is the machine currently running? */
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rsp = qmp_execute("query-status");
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g_assert(qdict_haskey(rsp, "return"));
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sub = qdict_get_qdict(rsp, "return");
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g_assert(qdict_haskey(sub, "running"));
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running = qdict_get_bool(sub, "running");
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QDECREF(rsp);
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/* Issue the migrate command. */
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s = g_strdup_printf("{ 'execute': 'migrate',"
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"'arguments': { 'uri': '%s' } }",
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uri);
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rsp = qmp(s);
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g_free(s);
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g_assert(qdict_haskey(rsp, "return"));
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QDECREF(rsp);
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/* Wait for STOP event, but only if we were running: */
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if (running) {
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qmp_eventwait("STOP");
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}
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/* If we were running, we can wait for an event. */
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if (running) {
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migrate_allocator(from->alloc, to->alloc);
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set_context(to);
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qmp_eventwait("RESUME");
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return;
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}
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/* Otherwise, we need to wait: poll until migration is completed. */
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while (1) {
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rsp = qmp_execute("query-migrate");
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g_assert(qdict_haskey(rsp, "return"));
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sub = qdict_get_qdict(rsp, "return");
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g_assert(qdict_haskey(sub, "status"));
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st = qdict_get_str(sub, "status");
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/* "setup", "active", "completed", "failed", "cancelled" */
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if (strcmp(st, "completed") == 0) {
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QDECREF(rsp);
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break;
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}
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if ((strcmp(st, "setup") == 0) || (strcmp(st, "active") == 0)) {
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QDECREF(rsp);
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g_usleep(5000);
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continue;
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}
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fprintf(stderr, "Migration did not complete, status: %s\n", st);
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g_assert_not_reached();
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}
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migrate_allocator(from->alloc, to->alloc);
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set_context(to);
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}
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bool have_qemu_img(void)
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{
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char *rpath;
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const char *path = getenv("QTEST_QEMU_IMG");
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if (!path) {
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return false;
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}
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rpath = realpath(path, NULL);
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if (!rpath) {
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return false;
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} else {
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free(rpath);
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return true;
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}
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}
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void mkimg(const char *file, const char *fmt, unsigned size_mb)
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{
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gchar *cli;
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bool ret;
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int rc;
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GError *err = NULL;
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char *qemu_img_path;
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gchar *out, *out2;
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char *qemu_img_abs_path;
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qemu_img_path = getenv("QTEST_QEMU_IMG");
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g_assert(qemu_img_path);
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qemu_img_abs_path = realpath(qemu_img_path, NULL);
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g_assert(qemu_img_abs_path);
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cli = g_strdup_printf("%s create -f %s %s %uM", qemu_img_abs_path,
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fmt, file, size_mb);
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ret = g_spawn_command_line_sync(cli, &out, &out2, &rc, &err);
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if (err) {
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fprintf(stderr, "%s\n", err->message);
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g_error_free(err);
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}
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g_assert(ret && !err);
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/* In glib 2.34, we have g_spawn_check_exit_status. in 2.12, we don't.
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* glib 2.43.91 implementation assumes that any non-zero is an error for
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* windows, but uses extra precautions for Linux. However,
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* 0 is only possible if the program exited normally, so that should be
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* sufficient for our purposes on all platforms, here. */
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if (rc) {
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fprintf(stderr, "qemu-img returned status code %d\n", rc);
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}
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g_assert(!rc);
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g_free(out);
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g_free(out2);
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g_free(cli);
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free(qemu_img_abs_path);
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}
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void mkqcow2(const char *file, unsigned size_mb)
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{
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return mkimg(file, "qcow2", size_mb);
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}
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void prepare_blkdebug_script(const char *debug_fn, const char *event)
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{
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FILE *debug_file = fopen(debug_fn, "w");
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int ret;
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fprintf(debug_file, "[inject-error]\n");
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fprintf(debug_file, "event = \"%s\"\n", event);
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fprintf(debug_file, "errno = \"5\"\n");
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fprintf(debug_file, "state = \"1\"\n");
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fprintf(debug_file, "immediately = \"off\"\n");
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fprintf(debug_file, "once = \"on\"\n");
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fprintf(debug_file, "[set-state]\n");
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fprintf(debug_file, "event = \"%s\"\n", event);
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fprintf(debug_file, "new_state = \"2\"\n");
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fflush(debug_file);
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g_assert(!ferror(debug_file));
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ret = fclose(debug_file);
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g_assert(ret == 0);
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}
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void generate_pattern(void *buffer, size_t len, size_t cycle_len)
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{
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int i, j;
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unsigned char *tx = (unsigned char *)buffer;
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unsigned char p;
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size_t *sx;
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/* Write an indicative pattern that varies and is unique per-cycle */
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p = rand() % 256;
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for (i = 0; i < len; i++) {
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tx[i] = p++ % 256;
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if (i % cycle_len == 0) {
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p = rand() % 256;
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}
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}
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/* force uniqueness by writing an id per-cycle */
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for (i = 0; i < len / cycle_len; i++) {
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j = i * cycle_len;
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if (j + sizeof(*sx) <= len) {
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sx = (size_t *)&tx[j];
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*sx = i;
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}
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}
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}
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