Re: [Qemu-devel] [PATCH v1 1/2] vhost-user: support SET_MEM_TABLE waite the result of mmap

[Michael S. Tsirkin]

On Tue, Feb 10, 2015 at 01:48:12PM +0800, linhaifeng wrote:
> From: Linhaifeng <address@hidden>
> 
> Slave should reply to master and set u64 to 0 if
> mmap all regions success otherwise set u64 to 1.
> 
> Signed-off-by: Linhaifeng <address@hidden>

How does this work with existig slaves though?

> ---
>  docs/specs/vhost-user.txt | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/docs/specs/vhost-user.txt b/docs/specs/vhost-user.txt
> index 650bb18..c96bf6b 100644
> --- a/docs/specs/vhost-user.txt
> +++ b/docs/specs/vhost-user.txt
> @@ -171,6 +171,7 @@ Message types
>        Id: 5
>        Equivalent ioctl: VHOST_SET_MEM_TABLE
>        Master payload: memory regions description
> +      Slave payload: u64 (0:success >0:failed)
>  
>        Sets the memory map regions on the slave so it can translate the vring
>        addresses. In the ancillary data there is an array of file descriptors
> -- 
> 1.7.12.4
>