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Subject: Re: [PATCH] arm64: defconfig: enable modern virtio pci device
To:     Arnd Bergmann <arnd@kernel.org>,
        Anders Roxell <anders.roxell@linaro.org>
Cc:     SoC Team <soc@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Russell King - ARM Linux <linux@armlinux.org.uk>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Chris Zankel <chris@zankel.net>,
        Max Filippov <jcmvbkbc@gmail.com>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@vger.kernel.org>,
        linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
        linux-riscv <linux-riscv@lists.infradead.org>,
        linux-xtensa@linux-xtensa.org,
        "Michael S. Tsirkin" <mst@redhat.com>,
        virtualization@lists.linux-foundation.org,
        Arnd Bergmann <arnd@arndb.de>
References: <20210210190506.1923684-1-anders.roxell@linaro.org>
 <CAK8P3a2ysNApoG2FDsLdNoWA7nPXvzLMzkjXWdCig9jaSWwuKw@mail.gmail.com>
From:   Jason Wang <jasowang@redhat.com>
Message-ID: <fffdfa8f-38c1-6fd1-d043-8a4f476213dc@redhat.com>
Date:   Thu, 18 Feb 2021 14:04:59 +0800
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On 2021/2/11 下午7:52, Arnd Bergmann wrote:
> On Wed, Feb 10, 2021 at 8:05 PM Anders Roxell <anders.roxell@linaro.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@linaro.org>
>> ---
>>   arch/arm/configs/multi_v7_defconfig         | 1 +
>>   arch/arm64/configs/defconfig                | 1 +
> Acked-by: Arnd Bergmann <arnd@arndb.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