Re: [PATCH v2 7/9] tests/qtest/migration: Define a machine for all architectures

[Juan Quintela <quintela@redhat.com>]

Fabiano Rosas <farosas@suse.de> wrote:
> Stop relying on defaults and select a machine explicitly for every
> architecture.
>
> This is a prerequisite for being able to select machine types for
> migration using different QEMU binaries for source and destination.
>
> Signed-off-by: Fabiano Rosas <farosas@suse.de>
> ---
>  tests/qtest/migration-test.c | 11 ++++++++++-
>  1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> index 46f1c275a2..7c10ac925b 100644
> --- a/tests/qtest/migration-test.c
> +++ b/tests/qtest/migration-test.c
> @@ -746,6 +746,7 @@ static int test_migrate_start(QTestState **from, QTestState **to,
>      const char *kvm_opts = NULL;
>      const char *arch = qtest_get_arch();
>      const char *memory_size;
> +    const char *machine;
>  
>      if (args->use_shmem) {
>          if (!g_file_test("/dev/shm", G_FILE_TEST_IS_DIR)) {
> @@ -758,11 +759,13 @@ static int test_migrate_start(QTestState **from, QTestState **to,
>      got_dst_resume = false;
>      if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
>          memory_size = "150M";
> +        machine = "pc";

I would suggest:

      if (strcmp(arch, "i386")) {
          machine = "pc";
      } else {
          machine = "q35";
      }

New development is happening in q35, so I think this should be the more tested.

> @@ -774,10 +777,12 @@ static int test_migrate_start(QTestState **from, QTestState **to,
>                                        "'nvramrc=hex .\" _\" begin %x %x "
>                                        "do i c@ 1 + i c! 1000 +loop .\" B\" 0 "
>                                        "until'", end_address, start_address);
> +        machine = "pseries";
>          arch_opts = g_strdup("-nodefaults -machine vsmt=8");
>      } else if (strcmp(arch, "aarch64") == 0) {
>          memory_size = "150M";
> -        arch_opts = g_strdup_printf("-machine virt,gic-version=max -cpu max "
> +        machine = "virt";
> +        arch_opts = g_strdup_printf("-machine gic-version=max -cpu max "

Does this double -machine command line works?

I expect yes, but who knows.

Later, Juan.