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[Xen-devel] Re: [PATCH V2] passthrough: deliver IRQs even if VCPU#0 is h
| To: | Kouya Shimura <kouya@xxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [PATCH V2] passthrough: deliver IRQs even if VCPU#0 is halted |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Fri, 10 Jul 2009 10:38:23 +0100 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Fri, 10 Jul 2009 02:39:12 -0700 |
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| Thread-index: | AcoBQK1Wx8YkdpMoSNOvidyVCBEq1AAAX1mJ |
| Thread-topic: | [PATCH V2] passthrough: deliver IRQs even if VCPU#0 is halted |
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On 10/07/2009 10:27, "Kouya Shimura" <kouya@xxxxxxxxxxxxxx> wrote: > Keir Fraser writes: >> Just target the i8259_target, and don't bother with the MP efficiency >> changes. > > Sure. Attached. kdump works fine with this patch. > I was a little bit worried about i8259_target pointing the halted VCPU#0. In your specific case it won't when it matters (kdump kernel comes up, reprograms IO-APIC which fixes i8259_target, then brings up PCI layer). Really I think some of that dirq assist stuff should be put in a tasklet. But let's not worry about that now, and just patch it up this way. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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