Re: [RFC PATCH v1 0/3] put arm64 kvm_config on a diet

Ard Biesheuvel
2020-08-04T13:21:23Z

On Tue, 4 Aug 2020 at 14:45, Alex Bennée <alex.bennee@linaro.org> wrote:
>
> Hi,
>
> When building guest kernels for virtualisation we were bringing in a
> bunch of stuff from physical hardware which we don't need for our
> idealised fixable virtual PCI devices. This series makes some Kconfig
> changes to allow the ThunderX and XGene PCI drivers to be compiled
> out. It also drops PCI_QUIRKS from the KVM guest build as a virtual
> PCI device should be quirk free.
>

What about PCI passthrough?

> This is my first time hacking around Kconfig so I hope I've got the
> balance between depends and selects right but please let be know if it
> could be specified in a cleaner way.
>
> Alex Bennée (3):
> arm64: allow de-selection of ThunderX PCI controllers
> arm64: gate the whole of pci-xgene on CONFIG_PCI_XGENE
> kernel/configs: don't include PCI_QUIRKS in KVM guest configs
>
> arch/arm64/Kconfig.platforms | 2 ++
> arch/arm64/configs/defconfig | 1 +
> drivers/pci/controller/Kconfig | 7 +++++++
> drivers/pci/controller/Makefile | 8 +++-----
> kernel/configs/kvm_guest.config | 1 +
> 5 files changed, 14 insertions(+), 5 deletions(-)
>
> --
> 2.20.1
>
>
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