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RE: [Xen-ia64-devel] [PATCH] implemented vcpu_ptc_l()


  • To: "Isaku Yamahata" <yamahata@xxxxxxxxxxxxx>
  • From: "Dong, Eddie" <eddie.dong@xxxxxxxxx>
  • Date: Tue, 6 Dec 2005 21:38:28 +0800
  • Cc: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 06 Dec 2005 13:38:37 +0000
  • List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>
  • Thread-index: AcX6N6lB9bd5iyK5Rvqljdl3qTzSeQAMdV+Q
  • Thread-topic: [Xen-ia64-devel] [PATCH] implemented vcpu_ptc_l()

Isaku Yamahata wrote:
> On Tue, Dec 06, 2005 at 01:31:03PM +0800, Dong, Eddie wrote:
> 
> I disabled CONFIG_SMP manually because ski doesn't support smp.
> (And I enabled some configs related to ski.)
> para linux with CONFIG_SMP=n uses ptc.l.
That makes sense.

> 
> Should I enable CONFIG_SMP?
> If so, does following patch make sense?
I think ptc doesn't need to purge TR, and also 1-entry TLB needs to be
purged.
I mean vcpu->arch.dtlb and vcpu->arch.itlb.

Thanks,eddie

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