linux-kernel - Re: [RFC PATCH v2 16/18] vfio: enable IOMMU

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Message-ID:
 <KUZPR04MB9265F2B6E662CCF1C6745155F3E2A@KUZPR04MB9265.apcprd04.prod.outlook.com>
Date: Sun, 5 Oct 2025 16:44:52 +0800
From: "Nutty.Liu" <nutty.liu@...mail.com>
To: Andrew Jones <ajones@...tanamicro.com>, iommu@...ts.linux.dev,
 kvm-riscv@...ts.infradead.org, kvm@...r.kernel.org,
 linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: jgg@...dia.com, zong.li@...ive.com, tjeznach@...osinc.com,
 joro@...tes.org, will@...nel.org, robin.murphy@....com, anup@...infault.org,
 atish.patra@...ux.dev, tglx@...utronix.de, alex.williamson@...hat.com,
 paul.walmsley@...ive.com, palmer@...belt.com, alex@...ti.fr
Subject: Re: [RFC PATCH v2 16/18] vfio: enable IOMMU_TYPE1 for RISC-V

On 9/21/2025 4:39 AM, Andrew Jones wrote:
> From: Tomasz Jeznach <tjeznach@...osinc.com>
>
> Enable VFIO support on RISC-V architecture.
>
> Signed-off-by: Tomasz Jeznach <tjeznach@...osinc.com>
> Signed-off-by: Andrew Jones <ajones@...tanamicro.com>
> ---
>   drivers/vfio/Kconfig | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Nutty Liu <nutty.liu@...mail.com>

Thanks,
Nutty
> diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
> index ceae52fd7586..ad62205b4e45 100644
> --- a/drivers/vfio/Kconfig
> +++ b/drivers/vfio/Kconfig
> @@ -39,7 +39,7 @@ config VFIO_GROUP
>   
>   config VFIO_CONTAINER
>   	bool "Support for the VFIO container /dev/vfio/vfio"
> -	select VFIO_IOMMU_TYPE1 if MMU && (X86 || S390 || ARM || ARM64)
> +	select VFIO_IOMMU_TYPE1 if MMU && (X86 || S390 || ARM || ARM64 || RISCV)
>   	depends on VFIO_GROUP
>   	default y
>   	help