Re: [libvirt] [PATCH 0/8] logically memory hotplug via guest agent
On Wed, Jun 10, 2015 at 02:05:16PM +0800, zhang bo wrote:
On 2015/6/10 13:40, Vasiliy Tolstov wrote:
> 2015-06-10 5:28 GMT+03:00 zhang bo <oscar.zhangbo(a)huawei.com>:
>> Thank you for your reply.
>> Before this patch, we needed to manually online memory blocks inside the guest,
after dimm memory hotplug
>> for most *nix OSes. (Windows guests automatically get their memory blocks online
after hotplugging)
>> That is to say, we need to LOGICALLY hotplug memory after PHYSICAL hotplug.
>> This patch did the LOGICAL part.
>> With this patch, we don't need to get into the guest to manually online them
anymore, which is even
>> impossible for most host administrators.
>
>
> As i remember this online step easy can be automate via udev rules.
>
Logically that's true, but adding udev rules means:
1 you have to get into the guest
2 you have to be familar with udev rules.
Not convenient enough compared to just calling libvirt API to do so.
The udev rules are really something the OS vendor should setup, so
that it "just works"
Regards,
Daniel
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