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xen-devel
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To: |
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
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Subject: |
Re: [Xen-devel] Genapic |
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From: |
Andi Kleen <ak@xxxxxx> |
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Date: |
25 May 2005 17:26:34 +0200 |
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Date: |
Wed, 25 May 2005 17:26:34 +0200 |
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Cc: |
xen-devel@xxxxxxxxxxxxxxxxxxx, Natasha Jarymowycz <natasha@xxxxxxxxxx>, "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx>, "Davis, Jason" <jason.davis@xxxxxxxxxx>, "Vessey, Bruce A" <Bruce.Vessey@xxxxxxxxxx> |
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Wed, 25 May 2005 15:25:54 +0000 |
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On Tue, May 24, 2005 at 09:22:47PM +0100, Keir Fraser wrote:
>
> On 24 May 2005, at 20:58, Puthiyaparambil, Aravindh wrote:
>
> >I am fine with going down the x86_64 genapic route for Xen. The only
> >thing is that I know that IRQ overrides are not present in the x86_64
> >genapic. So that might have to be brought over for the ES7000.
> >
> >I would like to start working on bringing the x86_64 code over. Will
> >this clash with anyone else?
>
> I'm about halfway through bringing i386 platform code over. I'm working
> on smp bootup and cpumask_t right now, but genapic is next and should
> be quite simple. I'd rather take the more flexible i386 code in the
> first instance (which will immediately support es7000, for example) and
It is actually not more flexible at all for the dynamic case.
With a static compile you have some more choices, should you really
want to support the Numasaurus (aka NUMAQ) or SGI Visual Workstation
(kind of a SGI O2 with a x86 CPU) or Voyager (NUMA 486). Somehow I cannot
imagine you really want that though, these are all quite old and obscure
machines.
A lot of the cruft in the i386 layer even comes from PC98 support
(which was a old Japanese not quite PC x86 platform), which was later
dropped because it was unmaintained. The hooks it needed were
never cleaned up unfortunately.
-Andi
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- Re: [Xen-devel] Genapic, (continued)
RE: [Xen-devel] Genapic, Nakajima, Jun
RE: [Xen-devel] Genapic, Puthiyaparambil, Aravindh
RE: [Xen-devel] Genapic, Nakajima, Jun
RE: [Xen-devel] Genapic, Puthiyaparambil, Aravindh
RE: [Xen-devel] Genapic, Puthiyaparambil, Aravindh
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