WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Xen

xen-devel

[Top] [All Lists]

Re: [Xen-devel] HVM windows - PCI IRQ firing on both CPU's

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] HVM windows - PCI IRQ firing on both CPU's
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: 2008年8月18日 13:26:50 +0100
Cc:
Delivery-date: 2008年8月18日 05:27:17 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <AEC6C66638C05B468B556EA548C1A77D01490333@trantor >
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AckBIKaFdOX6QU6hSgaQozLRUZxMrQACj3ysAABk+0AAAE37Lg==
Thread-topic: [Xen-devel] HVM windows - PCI IRQ firing on both CPU's
User-agent: Microsoft-Entourage/11.4.0.080122
On 18/8/08 13:19, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> wrote:
> Just so I understand, even if I see the IRQ on CPU1, I should always
> treat it as if it came in on CPU0?
Yes. Only vcpu0's event-channel logic is wired into the virtual PIC/IOAPIC.
Even if the IOAPIC then forwards the interrupt to a different VCPU, it's
still vcpu0's event-channel status that initiated the interrupt. Other
vcpus' event-channel statuses do not cause interrupts in HVM.
> The lack of that would explain what I'm seeing.
It sure would.
 -- Keir
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date: RE: [Xen-devel] HVM windows - PCI IRQ firing on both CPU's , James Harper
Next by Date: RE: [Xen-devel] HVM windows - PCI IRQ firing on both CPU's , James Harper
Previous by Thread: RE: [Xen-devel] HVM windows - PCI IRQ firing on both CPU's , James Harper
Next by Thread: RE: [Xen-devel] HVM windows - PCI IRQ firing on both CPU's , James Harper
Indexes: [Date] [Thread] [Top] [All Lists]

Copyright ©, Citrix Systems Inc. All rights reserved. Legal and Privacy
Citrix This site is hosted by Citrix

AltStyle によって変換されたページ (->オリジナル) /