[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] RE: x86_64 SMP support (status update)


  • To: "Chris Wright" <chrisw@xxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>
  • Date: Mon, 27 Jun 2005 13:38:24 -0700
  • Delivery-date: Mon, 27 Jun 2005 20:37:23 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcV7RkzyyUJdA1okSRyIyrYjBjPtIQAEVvng
  • Thread-topic: x86_64 SMP support (status update)

Chris Wright wrote:
> Below is the patch I've been working with to get x86_64 SMP support
> going.  It's a definite work in progress.  Currently, I'm able to
> build 
> a second vcpu from dom0, but when it gets scheduled it crashes. 
> Booting 
> the same kernel with maxcpus=1 gets up to login prompt.  Here's some
> known issues:

Good progress and good start, i.e. we have at least one virutal
processor there :-).

We'll look at the problem too.

> 
> entry.S:
>       - preempt_{en,dis}able is commented out for now (due to
thread_info)
>       - ugly shl,shr combo to clear upper 32 bits.
> smpboot.c:
>       - faults if writing to cpu_gdt_table[1], so doing bogus
>         reuse of cpu 0 table entries directly
> 

Jun
---
Intel Open Source Technology Center

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.