Re: [PATCH 2/3] tests/acpi: add a new unit test to test hotplug off/on feature on the root pci bus

[Igor Mammedov]

On Sun, 30 Aug 2020 15:29:13 +0530
Ani Sinha <ani@anisinha.ca> wrote:

> Ability to turn hotplug off on the pci root bus for i440fx was added in 
> commit:
> 3d7e78aa7777f0 ("Introduce a new flag for i440fx to disable PCI hotplug on 
> the root bus")
> 
> This change adds a unit test in order to test this feature.
> 
> This change has been tested against upstream qemu master branch on top of tag 
> v5.1.0.
> 
> Signed-off-by: Ani Sinha <ani@anisinha.ca>
> ---
>  tests/qtest/bios-tables-test.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
> index d49b3988ec..8f7d87c0f6 100644
> --- a/tests/qtest/bios-tables-test.c
> +++ b/tests/qtest/bios-tables-test.c
> @@ -709,6 +709,19 @@ static void test_acpi_piix4_tcg_bridge(void)
>      free_test_data(&data);
>  }
>  
> +static void test_acpi_piix4_root_hotplug(void)
> +{
> +    test_data data;
> +
> +    memset(&data, 0, sizeof(data));
> +    data.machine = MACHINE_PC;
> +    data.variant = ".roothp";
> +    data.required_struct_types = base_required_struct_types;
> +    data.required_struct_types_len = ARRAY_SIZE(base_required_struct_types);
> +    test_acpi_one("-global PIIX4_PM.acpi-root-pci-hotplug=off", &data);

I'd include here bridge config as well (test_acpi_piix4_tcg_bridge)
so that ASL diff could show whether bridge was or wasn't affected.

> +    free_test_data(&data);
> +}
> +
>  static void test_acpi_q35_tcg(void)
>  {
>      test_data data;
> @@ -1102,6 +1115,7 @@ int main(int argc, char *argv[])
>          qtest_add_func("acpi/q35/tpm-tis", test_acpi_q35_tcg_tpm_tis);
>          qtest_add_func("acpi/piix4", test_acpi_piix4_tcg);
>          qtest_add_func("acpi/piix4/bridge", test_acpi_piix4_tcg_bridge);
> +        qtest_add_func("acpi/piix4/hotplug", test_acpi_piix4_root_hotplug);
>          qtest_add_func("acpi/q35", test_acpi_q35_tcg);
>          qtest_add_func("acpi/q35/bridge", test_acpi_q35_tcg_bridge);
>          qtest_add_func("acpi/q35/mmio64", test_acpi_q35_tcg_mmio64);