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From: ebiederm@xmission.com (Eric W. Biederman)
To: "Yinghai Lu" <yhlu.kernel@gmail.com>
Cc: "Jeremy Fitzhardinge" <jeremy@goop.org>,
	"H. Peter Anvin" <hpa@zytor.com>, "Ingo Molnar" <mingo@elte.hu>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Dhaval Giani" <dhaval@linux.vnet.ibm.com>,
	"Mike Travis" <travis@sgi.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86_64: Restore the proper NR_IRQS define so larger systems work.
Date: Sat, 02 Aug 2008 23:35:42 -0700	[thread overview]
Message-ID: <m1sktm7ght.fsf@frodo.ebiederm.org> (raw)
In-Reply-To: <86802c440808022258x1198093x7d21274b82e75f4b@mail.gmail.com> (Yinghai Lu's message of "Sat, 2 Aug 2008 22:58:24 -0700")

"Yinghai Lu" <yhlu.kernel@gmail.com> writes:


> what should xen pv 64 get for NR_IRQS?

Xen pv 64 will work at least as well with a larger definition for
NR_IRQS as it will work with a smaller definition, and since
NR_VECTORS is 256 we always have more irqs with the 32bit definition
we were mistakenly using. 

Xen has 1024 event channels so I expect 1024 would the nice number to
provide there.

Eric


  reply	other threads:[~2008-08-03  6:43 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-02  2:02 [PATCH] x86: 64bit support more than 256 irq v2 Yinghai Lu
2008-08-02  2:16 ` Yinghai Lu
2008-08-02  2:58   ` Eric W. Biederman
2008-08-02  3:11     ` Yinghai Lu
2008-08-02  3:37       ` Eric W. Biederman
2008-08-04 13:20     ` Mike Travis
2008-08-04 18:16       ` Yinghai Lu
2008-08-03  5:09 ` Eric W. Biederman
2008-08-03  5:26 ` [PATCH] x86_64: Restore the proper NR_IRQS define so larger systems work Eric W. Biederman
2008-08-03  5:58   ` Yinghai Lu
2008-08-03  6:35     ` Eric W. Biederman [this message]
2008-08-03  6:54       ` Jeremy Fitzhardinge
2008-08-03  6:44     ` Jeremy Fitzhardinge

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