[kvm-unit-tests PATCH v5 07/29] powerpc: Add a migration stress tester

[Nicholas Piggin <npiggin@gmail.com>]

This performs 1000 migrations a tight loop to flush out simple issues
in the multiple-migration code.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 powerpc/Makefile.common |  1 +
 powerpc/migrate.c       | 64 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 65 insertions(+)
 create mode 100644 powerpc/migrate.c

diff --git a/powerpc/Makefile.common b/powerpc/Makefile.common
index f8f47490..a7af225b 100644
--- a/powerpc/Makefile.common
+++ b/powerpc/Makefile.common
@@ -5,6 +5,7 @@
 #
 
 tests-common = \
+	$(TEST_DIR)/migrate.elf \
 	$(TEST_DIR)/selftest.elf \
 	$(TEST_DIR)/spapr_hcall.elf \
 	$(TEST_DIR)/rtas.elf \
diff --git a/powerpc/migrate.c b/powerpc/migrate.c
new file mode 100644
index 00000000..a9f98c9f
--- /dev/null
+++ b/powerpc/migrate.c
@@ -0,0 +1,64 @@
+/*
+ * Stress Test Migration
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.
+ */
+#include <libcflat.h>
+#include <util.h>
+#include <migrate.h>
+#include <alloc.h>
+#include <asm/handlers.h>
+#include <devicetree.h>
+#include <asm/hcall.h>
+#include <asm/processor.h>
+#include <asm/barrier.h>
+
+static bool do_migrate = false;
+
+static void test_migration(int argc, char **argv)
+{
+	int i;
+
+	for (i = 0; i < 1000; i++) {
+		if (do_migrate)
+			migrate();
+	}
+}
+
+struct {
+	const char *name;
+	void (*func)(int argc, char **argv);
+} hctests[] = {
+	{ "migration", test_migration },
+	{ NULL, NULL }
+};
+
+int main(int argc, char **argv)
+{
+	bool all;
+	int i;
+
+	all = argc == 1 || !strcmp(argv[1], "all");
+
+	for (i = 1; i < argc; i++) {
+		if (!strcmp(argv[i], "-w")) {
+			do_migrate = true;
+			if (!all && argc == 2)
+				all = true;
+		}
+	}
+
+	report_prefix_push("migration");
+
+	for (i = 0; hctests[i].name != NULL; i++) {
+		if (all || strcmp(argv[1], hctests[i].name) == 0) {
+			report_prefix_push(hctests[i].name);
+			hctests[i].func(argc, argv);
+			report_prefix_pop();
+		}
+	}
+
+	report_prefix_pop();
+
+	return report_summary();
+}
-- 
2.42.0