Re: [Qemu-devel] [RFC PATCH 0/5] modify boot order when vm is running

[Gonglei (Arei)]

> -----Original Message-----
> From: Laszlo Ersek [mailto:address@hidden
> Sent: Monday, July 07, 2014 6:04 PM
> To: Michael S. Tsirkin; Gonglei (Arei)
> Cc: address@hidden; address@hidden; address@hidden;
> address@hidden; address@hidden; address@hidden;
> address@hidden; address@hidden; address@hidden;
> address@hidden; address@hidden; address@hidden;
> address@hidden; address@hidden; address@hidden;
> address@hidden; address@hidden; address@hidden;
> address@hidden; address@hidden; Huangweidong (C); Luonengjun;
> Huangpeng (Peter); chenliang (T)
> Subject: Re: [RFC PATCH 0/5] modify boot order when vm is running
> 
> On 07/07/14 11:29, Michael S. Tsirkin wrote:
> > On Mon, Jul 07, 2014 at 05:10:56PM +0800, address@hidden
> wrote:
> >> From: Chenliang <address@hidden>
> >>
> >> Sometime, we want to modify boot order of vm without shutdown it.
> >> This sets of patches add one qmp to achieve it. And fix some little
> >> bug when device is hotpluged.
> >>
> >> Chenliang (5):
> >>   bootindex: add *_boot_device_path function
> >>   bootindex: reset bootindex when vm reset
> >>   bootindex: delete boot index when device is removed
> >>   bootindex: add qmp to set boot index when vm is running
> >>   bootindex: fix memory leak when ppc sets boot index
> >
> > Unfortunately at least for PC, boot order is exposed
> > in fw cfg which can not change while guest is running.
> > I suspect we need to change how we report boot order to guests.
> > While we are at it, maybe we can fix the silly bootindex
> > convention: I think people really want to specify boot *order*,
> > not boot index.
> 
> Please preserve the "bootorder" fw_cfg file, and its format.
> 
> I don't have any request in relation to the new (== dynamic) feature ATM.
> 
Sorry, I can't understand your meaning exactly. 
Would you explain it? Thanks!

> Thanks
> Laszlo

Best regards,
-Gonglei