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Re: [Qemu-devel] [PATCH] vhost-user: modify SET_LOG_BASE to pass mmap si
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH] vhost-user: modify SET_LOG_BASE to pass mmap size and offset |
Date: |
Thu, 12 Nov 2015 13:57:04 +0200 |
On Wed, Nov 11, 2015 at 04:33:05PM +0100, Marc-André Lureau wrote:
> Hi
>
> On Wed, Nov 11, 2015 at 3:26 PM, Victor Kaplansky <address@hidden> wrote:
> >
> > - Sets the logging base address.
> > + Sets logging shared memory space.
> > + When slave has VHOST_USER_PROTOCOL_F_LOG_SHMFD protocol
> > + feature, the log memory fd is provided in the ancillary data of
> > + VHOST_USER_SET_LOG_BASE message, the size and offset of shared
> > + memory area provided in the message.
>
> I think this extra payload needs a better description, in payload
> description above. Something like
>
> * A pair of 64-bit integers
> -------------
> | u64 | u64 |
> -------------
>
> u64: a 64-bit unsigned integer
>
> "the size and offset of shared memory area provided in the message as
> a pair of 64-bit integers."
Sounds good. I've queued this one up, pls tweak docs
with patches on top.
> --
> Marc-André Lureau