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[Xen-devel] RE: [ PATCH 4/4 ] HVM vcpu add/remove: qemu logic for vcpu a

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] RE: [ PATCH 4/4 ] HVM vcpu add/remove: qemu logic for vcpu add/revmoe
From: "Liu, Jinsong" <jinsong.liu@xxxxxxxxx>
Date: Tue, 15 Dec 2009 19:31:33 +0800
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Thread-topic: [ PATCH 4/4 ] HVM vcpu add/remove: qemu logic for vcpu add/revmoe
Keir Fraser wrote:
> On 14/12/2009 08:04, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:
>> On 13/12/2009 18:05, "Liu, Jinsong" <jinsong.liu@xxxxxxxxx> wrote:
>>> HVM vcpu add/remove: qemu logic for vcpu add/revmoe
>>> -- at qemu side, get vcpu_avail which used for original cpu avail
>>> map; 
>>> -- setup gpe ioread/iowrite at qmeu;
>>> -- setup vcpu add/remove user interface through monitor;
>>> -- setup SCI logic;
>> I'm guessing because this adds a new command-line option that I need
>> this checked into the qemu tree before I can apply your first patch
>> (1/4)? Otherwise that patch will break domain creation as qemu will
>> exit with an 'unrecognised option' error. So I need Ian Jackson to
>> apply this one and send me an updated QEMU_TAG first.
> As of c/s 20640 all your Xen patches are checked in. I modified them
> a bit so you may want to take a look. I commented out the one line
> that actually sets the new qemu option, until that option is
> supported by our qemu. I think there is a question over whether the
> new qemu option should (a) have a better name (I called it
> vcpu_online[] in hvm_info structure); and (b) should have a more
> user-friendly format (currently passing a decimal number interpreted
> as a bitmap - perhaps should be a list of vcpus instead). 
>  -- Keir

Just go through your modification, bios_info is really good, I don't know its 
usage before, thanks!

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