linux-kernel - Re: [PATCH] arm64: defconfig: enable modern virtio pci device

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Date:   Thu, 18 Feb 2021 14:04:59 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Arnd Bergmann <arnd@...nel.org>,
        Anders Roxell <anders.roxell@...aro.org>
Cc:     SoC Team <soc@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        linux-xtensa@...ux-xtensa.org,
        "Michael S. Tsirkin" <mst@...hat.com>,
        virtualization@...ts.linux-foundation.org,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH] arm64: defconfig: enable modern virtio pci device


On 2021/2/11 下午7:52, Arnd Bergmann wrote:
> On Wed, Feb 10, 2021 at 8:05 PM Anders Roxell <anders.roxell@...aro.org> wrote:
>> Since patch ("virtio-pci: introduce modern device module") got added it
>> is not possible to boot a defconfig kernel in qemu with a virtio pci
>> device.  Add CONFIG_VIRTIO_PCI_MODERN=y fragment makes the kernel able
>> to boot.
>>
>> Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
>> ---
>>   arch/arm/configs/multi_v7_defconfig         | 1 +
>>   arch/arm64/configs/defconfig                | 1 +
> Acked-by: Arnd Bergmann <arnd@...db.de>
>
> Michael, can you pick this up in the vhost tree that introduces the regression?
>
>           Arnd
>

Hi:

Based on the discussion previously, the plan is to select 
VIRTIO_PCI_MODERN, and document the module that select it must depend on 
PCI.

I will post a patch soon.

Thanks