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Re: [Xen-devel] [PATCH 1/4] hvm: NUMA guest: extend memops hypercall


  • To: Andre Przywara <andre.przywara@xxxxxxx>
  • From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Date: Fri, 04 Jul 2008 12:59:27 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Fri, 04 Jul 2008 04:59:52 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcjdzWhrpz4svknAEd2bbwAX8io7RQ==
  • Thread-topic: [Xen-devel] [PATCH 1/4] hvm: NUMA guest: extend memops hypercall

On 4/7/08 12:14, "Andre Przywara" <andre.przywara@xxxxxxx> wrote:

>> Should unprivileged domUs be allowed to specify the NUMA node they allocate
>> from, regardless of whether they even run there? Seems like a breakage of
>> guest isolation to me.
> Good catch (I code in HVM land most of the time), I hope this small
> (attached) patch fixes this.

Looking some more, I still don't see that this patch can work. Don't the
subfunctions in memory.c go and OR in MEMF_node() values on top of what the
caller may have specified??

 -- Keir



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