Re: [Xen-ia64-devel] [Patch] Pass the bare LSAPIC ID to dom0

[Alex Williamson <alex.williamson@xxxxxx>]

On Fri, 2007-07-20 at 03:53 +0200, Tristan Gingold wrote:
> On Thu, Jul 19, 2007 at 05:20:26PM -0600, Alex Williamson wrote:
> > On Wed, 2007-07-18 at 16:03 +0900, Akio Takebe wrote:
> > > Hi, all
> > > 
> > > This patch fix a issue which dom0 cannot boot with dom0_max_vcpus.
> > > Currently LSAPIC IDs are create by xen,
> > > but ACPI SRAT table is the bare table.
> > > So on some boxes node_cpuid[].phys_id are different from 
> > > cpu_physical_id()s,
> > > and we cannot boot dom0.
> > > I think xen should pass the bare LSAPIC ID to dom0.
> Hi Akio,
> 
> I am not sure this patch is complete.  Some code of Xen assumes vcpu_id ==
> id (get_lid, IPI).
> I think you'd better to patch the SRAT (if it is possible).

   That may be the way to go, it should be possible.  BTW, now that I
look at it again, lsapic->id == 0 really looks like an implementation
dependent check.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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