Re: [Xen-devel] [PATCH v11 19/27] COLO: introduce new API to prepare/start/do/get_error/stop replication

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Mar 18, 2016 at 11:44:34AM +0800, Changlong Xie wrote:
> On 03/05/2016 01:26 AM, Ian Jackson wrote:
> >Changlong Xie writes ("[PATCH v11 19/27] COLO: introduce new API to 
> >prepare/start/do/get_error/stop replication"):
> >>From: Wen Congyang <wency@xxxxxxxxxxxxxx>
> >>
> >>We will use qemu block replication, and qemu provides some qmp commands
> >>to prepare replication, start replication, get replication error, and
> >>stop replication. Introduce new API to execute these qmp commands.
> >
> >How will this work if in future we want to support HVM (or
> >hvm-lite-ng) guests ?
> 
> Sorry for bad english, what does "hvm-lite-ng" mean? I can't figure out this
> abbr.
> 

Oh, sorry for now having explained this earlier.  HVMlite is a new guest
mode. It's basically HVM without QEMU. The official name for that new
mode is not yet coined, so you might see it being referred to as PVHv2,
hvmlite-nodm or some other names, but in essence they point to the same
thing.

For more information:

  http://wiki.xen.org/wiki/Virtualization_Spectrum

And scroll down to the bottom for a nice picture. To avoid further
complicating things, I will dwell into the difference between PVHv1 and
PVHv2 (hvmlite).

Wei.


> >
> >>diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
> >>index 5160939..8cb9f19 100644
> >>--- a/tools/libxl/libxl_internal.h
> >>+++ b/tools/libxl/libxl_internal.h
> >>@@ -1771,6 +1771,26 @@ _hidden int
> >>libxl__qmp_set_global_dirty_log(libxl__gc ...
> >>+_hidden int libxl__qmp_nbd_server_add(libxl__gc *gc, int domid, const char 
> >>*disk);
> >
> >It's a tiny nit, but can I grumble about the long lines here ?  Less
> >than ~70-75 characters is best.
> >
> >Thanks,
> >Ian.
> >
> >
> >.
> >
> 
> 

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel