linux-kernel - RE: virtio-crypto: Inquiry about virtio crypto

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Message-ID: <027ff08db97d414da0ccc24a439e75d0@huawei.com>
Date: Thu, 27 Nov 2025 02:56:51 +0000
From: "Gonglei (Arei)" <arei.gonglei@...wei.com>
To: Bibo Mao <maobibo@...ngson.cn>
CC: "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
	"virtualization@...ts.linux.dev" <virtualization@...ts.linux.dev>,
	linux-kernel <linux-kernel@...r.kernel.org>, QEMU devel
	<qemu-devel@...gnu.org>
Subject: RE: virtio-crypto: Inquiry about virtio crypto

Hi,

> -----Original Message-----
> From: Bibo Mao <maobibo@...ngson.cn>
> Sent: Thursday, November 27, 2025 9:43 AM
> To: Gonglei (Arei) <arei.gonglei@...wei.com>
> Cc: linux-crypto@...r.kernel.org; virtualization@...ts.linux.dev; linux-kernel
> <linux-kernel@...r.kernel.org>; QEMU devel <qemu-devel@...gnu.org>
> Subject: virtio-crypto: Inquiry about virtio crypto
> 
> Hi gonglei,
> 
>     I am investigating how to use HW crypto accelerator in VM. It seems that
> virtio-crypto is one option, however only aes skcipher algo is supported and

Actually akcipher service had been supported by virtio-crypto in 2022.

> virtio-crypto device is not suggested by RHEL 10.
> 
> https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/10/html
> /configuring_and_managing_linux_virtual_machines/feature-support-and-limit
> ations-in-rhel-10-virtualization
> 
>    I want to know what is the potential issued with virtio-crypto.
> 

This question is too big, maybe you'd better ask RHEL guys. :(

Regards,
-Gonglei

> Regards
> Bibo Mao