linux-kernel - Re: [PATCH 1/1] Add vhost

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Message-ID: <CAGF4SLj0TtW_kP935UdqswjT9qaznh_BR7sxW2ALozy7yTJ8vg@mail.gmail.com>
Date:   Fri, 2 Nov 2018 15:24:13 -0400
From:   Vitaly Mayatskih <v.mayatskih@...il.com>
To:     "Michael S . Tsirkin" <mst@...hat.com>
Cc:     Jason Wang <jasowang@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] Add vhost_blk driver

On Fri, Nov 2, 2018 at 2:36 PM Michael S. Tsirkin <mst@...hat.com> wrote:

> > +     if (type == VIRTIO_BLK_T_GET_ID) {
> > +             char s[] = "vhost_blk";
>
> Isn't this supposed to return the serial #?

Yes, that gets a bit tricky here... Disk serial number is specified in
QEMU command line parameters, so it needs to be passed to vhost_blk
when qemu attaches the disk backend. That can be done (now? in a
following incremental patch?).
Also other vhost work does the same with GET_ID, if that's matter.

I'll fix the rest, thanks for review!

-- 
wbr, Vitaly