Re: [Xen-devel] Re: [Xen-changelog] Create new vcpu_op() hypercall. Replaces old boot_vcpu()

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 3 Oct 2005, at 22:07, Ryan Harper wrote:

> I was also thinking toward NUMA systems where I'd like to know which
> physical cpus are being utilized for a given domain so when we allocate
> memory for a domain we can try to localize those allocations to the 
> cpus
> that will be using it.  Currently domain memory allocation happens
> before secondary processors are selected.
>
> I'd rather see domain creation take both max_vcpus and cpu placement
> bitmaps instead, but if that is not acceptable for 3.0, I'll go ahead
> and work up the patch as described since it needs to be resolved for
> 3.0.
I'd rather keep single-purpose dom0 ops than have createdomain become a 
'union of everything'.
There is already a dom0 op for pinning a vcpu. Right now it can't be 
used before the domain starts for other than vcpu0 since it requires 
VCPUOP_create to allocate the vcpu structure, but fixing that is 
unrelated to whether pin info is passed to DOM0_CREATEDOMAIN. As you 
say, it's also not critical to fix for 3.0.
 -- Keir


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