Re: [PATCH 03/22] arm: switch boards to "default y"

[Fabiano Rosas <farosas@suse.de>]

Paolo Bonzini <pbonzini@redhat.com> writes:

> Il mar 23 apr 2024, 20:12 Philippe Mathieu-Daudé <philmd@linaro.org> ha
> scritto:
>
>> Hi Fabiano,
>>
>> On 23/4/24 20:02, Fabiano Rosas wrote:
>> > Paolo Bonzini <pbonzini@redhat.com> writes:
>> >
>> >> For ARM targets, boards that require TCG are already using "default y".
>> >> Switch ARM_VIRT to the same selection mechanism.
>> >>
>> >> No changes to generated config-devices.mak file.
>> >>
>> >> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
>> >> ---
>> >>   configs/devices/arm-softmmu/default.mak | 3 ++-
>> >>   hw/arm/Kconfig                          | 2 ++
>> >>   2 files changed, 4 insertions(+), 1 deletion(-)
>> >>
>> >> diff --git a/configs/devices/arm-softmmu/default.mak
>> b/configs/devices/arm-softmmu/default.mak
>> >> index c1cfb3bcf75..31f77c20269 100644
>> >> --- a/configs/devices/arm-softmmu/default.mak
>> >> +++ b/configs/devices/arm-softmmu/default.mak
>> >> @@ -5,7 +5,8 @@
>> >>   # CONFIG_PCI_DEVICES=n
>> >>   # CONFIG_TEST_DEVICES=n
>> >>
>> >> -CONFIG_ARM_VIRT=y
>> >> +# Boards are selected by default, uncomment to keep out of the build.
>> >> +# CONFIG_ARM_VIRT=n
>> >>
>> >>   # These are selected by default when TCG is enabled, uncomment them to
>> >>   # keep out of the build.
>> >> diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
>> >> index 893a7bff66b..1e7cd01087f 100644
>> >> --- a/hw/arm/Kconfig
>> >> +++ b/hw/arm/Kconfig
>> >> @@ -1,5 +1,7 @@
>> >>   config ARM_VIRT
>> >>       bool
>> >> +    default y
>> >> +    depends on ARM
>> >>       imply PCI_DEVICES
>> >
>> > We lose pci.c when building --without-default-devices:
>> >
>> > $ arch
>> > aarch64
>> > $ ../configure --target-list=aarch64-softmmu,arm-softmmu
>> > --disable-linux-user --without-default-devices
>> > $ make
>> > ...
>> > libqemu-aarch64-softmmu.fa.p/target_arm_kvm.c.o: in function
>> `kvm_arch_fixup_msi_route':
>> > ../target/arm/kvm.c:1548: undefined reference to
>> `pci_device_iommu_address_space'
>>
>
> I guess we can add something like
>
> config AARCH64
>     select PCI if KVM

Yep, that fixes the build. With defaults disabled the tests are all
kinds of broken, but I guess that's expected. I see issues even in
master.

With the above included:

Tested-by: Fabiano Rosas <farosas@suse.de> # build-only on aarch64