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Re: [Xen-devel] Memory barrier definitions in xenctrl.h for ia64?

  • To: "Daniel P. Berrange" <berrange@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Mon, 18 Sep 2006 20:12:00 +0100
  • Delivery-date: Mon, 18 Sep 2006 12:12:33 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcbbVlELj2x8lkdJEduLdQAKle7CWA==
  • Thread-topic: [Xen-devel] Memory barrier definitions in xenctrl.h for ia64?
On 18/9/06 7:07 pm, "Daniel P. Berrange" <berrange@xxxxxxxxxx> wrote:

> The userspace tools blktap, xenfb & xconsoled are all using these macros in
> various places so if ia64 does indeed need memory barriers it looks like
> there is some nasty bug potential here

It definitely needs barriers. They should be grabbed from Linux definitions
in asm-ia64/system.h.

 -- Keir



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