From: Sheng Yang <sheng@linux.intel.com>
To: Keir Fraser <keir.fraser@eu.citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PATCH][v2] Hybrid extension support in Xen
Date: Tue, 2 Feb 2010 22:08:37 +0800 [thread overview]
Message-ID: <201002022208.37234.sheng@linux.intel.com> (raw)
In-Reply-To: <C78DE133.8C0C%keir.fraser@eu.citrix.com>
On Tuesday 02 February 2010 22:03:31 Keir Fraser wrote:
> On 02/02/2010 13:37, "Sheng Yang" <sheng@linux.intel.com> wrote:
> >>> 1. Enable SMP support through VCPU_OP in arch_set_info_guest().
> >>
> >> What does that mean and why would we want it?
> >
> > It's not a good description, sorry... We need a entry address and boot up
> > code AP. For that purpose, I reuse VCPUOP_initialise and VCPUOP_up
> > hypercall. The former guest set the entry address of AP, the later one
> > boot up them. For this, I add some code in arch_set_info_guest() to
> > initialize the AP(mostly what we did after INIT-SIPI-SIPI sequence),
> > that's what I means here...
>
> Okay, so that leads to the obvious next question: why do you want to avoid
> using INIT-SIPI-SIPI?
>
Because we don't have IOAPIC/LAPIC...
--
regards
Yang, Sheng
next prev parent reply other threads:[~2010-02-02 14:08 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-02 8:16 [PATCH][v2] Hybrid extension support in Xen Sheng Yang
2010-02-02 11:22 ` Ian Campbell
2010-02-02 12:54 ` Sheng Yang
2010-02-02 13:19 ` Ian Campbell
2010-02-02 13:28 ` Sheng Yang
2010-02-02 13:50 ` Ian Campbell
2010-02-02 14:00 ` Tim Deegan
2010-02-02 14:22 ` Sheng Yang
2010-02-02 14:28 ` Sheng Yang
2010-02-02 13:35 ` Keir Fraser
2010-02-02 13:52 ` Sheng Yang
2010-02-02 14:01 ` Keir Fraser
2010-02-02 14:13 ` Sheng Yang
2010-02-02 11:26 ` Ian Campbell
2010-02-02 13:06 ` Sheng Yang
2010-02-02 13:52 ` Ian Campbell
2010-02-02 14:04 ` Stefano Stabellini
2010-02-02 14:07 ` Sheng Yang
2010-02-02 16:15 ` Ian Campbell
2010-02-02 16:31 ` Sheng Yang
2010-02-02 18:03 ` Ian Campbell
2010-02-02 18:27 ` Stefano Stabellini
2010-02-03 5:15 ` Sheng Yang
2010-02-03 10:39 ` Tim Deegan
2010-02-02 11:32 ` Paul Durrant
2010-02-02 13:23 ` Keir Fraser
2010-02-02 13:37 ` Sheng Yang
2010-02-02 14:03 ` Keir Fraser
2010-02-02 14:08 ` Sheng Yang [this message]
2010-02-02 14:32 ` Keir Fraser
2010-02-02 14:37 ` Keir Fraser
2010-02-02 15:51 ` Sheng Yang
2010-02-02 14:39 ` Sheng Yang
2010-02-02 13:52 ` Ian Campbell
2010-02-02 13:53 ` Sheng Yang
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