On Thu, Jun 30, 2022 at 03:23:39PM +0800, Lei He wrote: > > > On Jun 30, 2022, at 2:59 PM, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote: > > > > On Thu, Jun 23, 2022 at 03:05:46PM +0800, Lei He wrote: > >> From: lei he <helei.sig11@xxxxxxxxxxxxx> > >> > >> This patch supports the ECDSA algorithm for virtio-crypto. > > > > Why is this necessary? > > > > The main purpose of this patch is to offload ECDSA computations to virtio-crypto dev. > We can modify the backend of virtio-crypto to allow hardware like Intel QAT cards to > perform the actual calculations, and user-space applications such as HTTPS server > can access those backend in a unified way(eg, keyctl_pk_xx syscall). > > Related works are also described in following patch series: > https://lwn.net/ml/linux-crypto/20220525090118.43403-1-helei.sig11@xxxxxxxxxxxxx/ IIUC, this link refers to testing performance of the RSA impl of virtio-crypto with a vhost-user backend, leveraging an Intel QAT device on the host. What's the status of that depolyment setup ? Is code for it published anywhere, and does it have dependancy on any kernel patches that are not yet posted and/or merged ? Does it cover both ECDSA and RSA yet, or still only RSA ? The QEMU backend part of the virtio-crypto support for ECDSA looks fine to merge, but obviously I'd like some positive sign that the kernel maintainers are willing to accept the guest driver side. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
