Re: [PATCH] tests/qtest: Do not use versioned pc-q35-5.2 machine anymore

[Thomas Huth <thuth@redhat.com>]

On 11/08/2026 20.31, Stefan Hajnoczi wrote:
> As of QEMU v11.1.0, the v5.2.0 machines are not usable anymore.
> 
> Use the latest x86 q35 machine instead, otherwise we get:
> 
>    $ qemu-system-x86_64 -M pc-q35-5.2
>    qemu-system-x86_64: unsupported machine type: "pc-q35-5.2"
>    Use -machine help to list supported machines
> 
> See commit a35f8577a07 ("include/hw: add macros for deprecation
> & removal of versioned machines") and f59ee044067 ("include/hw/boards:
> cope with dev/rc versions in deprecation checks") for explanation
> on automatically removed versioned machines.
> 
> This commit message is taken from commit 9eef3854d309 ("tests/qtest: Do
> not use versioned pc-q35-5.0 machine anymore") by Philippe Mathieu-Daudé
> <philmd@linaro.org>.
> 
> Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
> ---
>   tests/qtest/fuzz-virtio-scsi-test.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tests/qtest/fuzz-virtio-scsi-test.c b/tests/qtest/fuzz-virtio-scsi-test.c
> index e37b48b2cc1..102a5ccb67e 100644
> --- a/tests/qtest/fuzz-virtio-scsi-test.c
> +++ b/tests/qtest/fuzz-virtio-scsi-test.c
> @@ -19,7 +19,7 @@ static void test_mmio_oob_from_memory_region_cache(void)
>   {
>       QTestState *s;
>   
> -    s = qtest_init("-M pc-q35-5.2 -m 512M "
> +    s = qtest_init("-M q35 -m 512M "
>                      "-device virtio-scsi,num_queues=8,addr=03.0 ");
>   
>       qtest_outl(s, 0xcf8, 0x80001811);

I wonder whether we should rather remove the test completely instead? Those 
tests based on the fuzzers rely on a certain way of doing their MMIO - if a 
newer machine type has a slightly different MMIO layout, the test basically 
does not test anything useful anymore. WDYT?

  Thomas