tests: Add migration test for aarch64

This patch adds migration test support for aarch64. The test code, which
implements the same functionality as x86, is booted as a kernel in qemu.
Here are the design choices we make for aarch64:

 * We choose this -kernel approach because aarch64 QEMU doesn't provide a
   built-in fw like x86 does. So instead of relying on a boot loader, we
   use -kernel approach for aarch64.
 * The serial output is sent to PL011 directly.
 * The physical memory base for mach-virt machine is 0x40000000. We change
   the start_address and end_address for aarch64.

In addition to providing the binary, this patch also includes the source
code and the build script in tests/migration/aarch64. So users can change
the source and/or re-compile the binary as they wish.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Wei Huang <wei@redhat.com>
Message-Id: <1538669326-28135-1-git-send-email-wei@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

1 files changed, 23 insertions, 4 deletions

diff --git a/tests/migration-test.c b/tests/migration-test.c
index 20f38f1..5bdc0bd 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -86,12 +86,13 @@ static const char *tmpfs;
  * repeatedly. It outputs a 'B' at a fixed rate while it's still running.
  */
 #include "tests/migration/i386/a-b-bootblock.h"
+#include "tests/migration/aarch64/a-b-kernel.h"
 
-static void init_bootfile_x86(const char *bootpath)
+static void init_bootfile(const char *bootpath, void *content)
 {
     FILE *bootfile = fopen(bootpath, "wb");
 
-    g_assert_cmpint(fwrite(x86_bootsect, 512, 1, bootfile), ==, 1);
+    g_assert_cmpint(fwrite(content, 512, 1, bootfile), ==, 1);
     fclose(bootfile);
 }
 
@@ -428,7 +429,7 @@ static int test_migrate_start(QTestState **from, QTestState **to,
     got_stop = false;
 
     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
-        init_bootfile_x86(bootpath);
+        init_bootfile(bootpath, x86_bootsect);
         cmd_src = g_strdup_printf("-machine accel=%s -m 150M"
                                   " -name source,debug-threads=on"
                                   " -serial file:%s/src_serial"
@@ -459,6 +460,24 @@ static int test_migrate_start(QTestState **from, QTestState **to,
 
         start_address = PPC_TEST_MEM_START;
         end_address = PPC_TEST_MEM_END;
+    } else if (strcmp(arch, "aarch64") == 0) {
+        init_bootfile(bootpath, aarch64_kernel);
+        cmd_src = g_strdup_printf("-machine virt,accel=%s,gic-version=max "
+                                  "-name vmsource,debug-threads=on -cpu max "
+                                  "-m 150M -serial file:%s/src_serial "
+                                  "-kernel %s ",
+                                  accel, tmpfs, bootpath);
+        cmd_dst = g_strdup_printf("-machine virt,accel=%s,gic-version=max "
+                                  "-name vmdest,debug-threads=on -cpu max "
+                                  "-m 150M -serial file:%s/dest_serial "
+                                  "-kernel %s "
+                                  "-incoming %s ",
+                                  accel, tmpfs, bootpath, uri);
+
+        start_address = ARM_TEST_MEM_START;
+        end_address = ARM_TEST_MEM_END;
+
+        g_assert(sizeof(aarch64_kernel) <= ARM_TEST_MAX_KERNEL_SIZE);
     } else {
         g_assert_not_reached();
     }
@@ -545,7 +564,7 @@ static void test_deprecated(void)
 {
     QTestState *from;
 
-    from = qtest_start("");
+    from = qtest_start("-machine none");
 
     deprecated_set_downtime(from, 0.12345);
     deprecated_set_speed(from, 12345);