From: Joe Jin <joe.jin@oracle.com>
To: xen-devel@lists.xen.org, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: nr_irqs_gsi
Date: Thu, 12 Jul 2012 07:56:45 +0800 [thread overview]
Message-ID: <4FFE12BD.2000205@oracle.com> (raw)
In-Reply-To: <4FFD4A72.9090500@citrix.com>
On 07/11/12 17:42, Andrew Cooper wrote:
>
> No. There are 55 GSIs, indexed 0 thru 54. You would be introducing an
> off-by-one error by changing the condition.
Per xen log, I think it should be 0-55? for it start from 0 yet, please confirm!
>> (XEN) ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
>> (XEN) IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
>> (XEN) ACPI: IOAPIC (id[0x01] address[0xfec80000] gsi_base[32])
>> (XEN) IOAPIC[1]: apic_id 1, version 32, address 0xfec80000, GSI 32-55
>
> The more interesting question is why you are attempting to map more GSIs
> than you actually have.
>
The request came from Dom0 kernel(upstream kernel 3.0.x) for physical device.
Thanks,
Joe
next prev parent reply other threads:[~2012-07-11 23:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-11 3:31 nr_irqs_gsi Joe Jin
2012-07-11 9:42 ` nr_irqs_gsi Andrew Cooper
2012-07-11 14:00 ` nr_irqs_gsi Konrad Rzeszutek Wilk
2012-07-12 2:17 ` nr_irqs_gsi Joe Jin
2012-07-12 13:36 ` nr_irqs_gsi Konrad Rzeszutek Wilk
2012-07-23 13:30 ` nr_irqs_gsi Jan Beulich
2012-07-23 15:34 ` nr_irqs_gsi Konrad Rzeszutek Wilk
2012-07-24 2:03 ` nr_irqs_gsi Joe Jin
2012-07-24 2:02 ` nr_irqs_gsi Konrad Rzeszutek Wilk
2012-07-24 2:25 ` nr_irqs_gsi Joe Jin
2012-07-11 23:56 ` Joe Jin [this message]
2012-07-23 13:42 ` nr_irqs_gsi Jan Beulich
2012-07-24 0:21 ` nr_irqs_gsi Joe Jin
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