Re: [Xen-devel] RE: [PATCH] Allocate vmcs pages when system booting

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 17/01/2010 02:02, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> wrote:

> After reading the code again, I think maybe I missed one possible place to
> achieve the same purpose. We can simply allocate the VMCS pag from cpu_hotadd
> in XENPF_cpu_hotadd, where the CPU changed from possible to present. Later,
> when we bring-up the CPU, we don't need allocate VMCS page anymore. That is,
> we will allocate VMCS pages still, but only for present cpus, not possible
> CPUs. When CPU is changed from logical online to offline, this VMCS page will
> not be freed.
> 
> Do you agree this method?

I will come up with a patch tomorrow for you to try.

 -- Keir



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