| To: | <ssmith@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] removing event notification for HVM IRQ injection? |
| From: | "Dong, Eddie" <eddie.dong@xxxxxxxxx> |
| Date: | 2006年10月20日 17:10:27 +0800 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | 2006年10月20日 11:12:27 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxx |
| 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/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | Acb0J5WDC67RZQfzQNmF+ial5B6dhg== |
| Thread-topic: | removing event notification for HVM IRQ injection? |
Steven:
When looking at improving the HVM TPR acceleration, I noticed your previous patch (CSET:10974) replaced evtchn_set_pending in both hlt_timer_fn & vlapic_accept_irq with hvm_prod_vcpu. I am not sure for the purpose but at least one thing is missed after this patch: previous evtchn_set_pending may use physical IPI to interrupt target VP while hvm_prod_vcpu not. If the target VP is running, delivering guest IRQ ( both hlt_timer_fn & vlapic_accept_irq ) to a running VP have to use physical IPI to interrupt the execution to inject IRQ, without this the logic may be wrong.
Can u share more lights with us?
thx,eddie
_______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | [Xen-devel] FW: VMX status report 11831:f5321161c649 , Zheng, Jeff |
|---|---|
| Next by Date: | [Xen-devel] RE: Xenbits hardware failure , James Bulpin |
| Previous by Thread: | [Xen-devel] FW: VMX status report 11831:f5321161c649 , Zheng, Jeff |
| Next by Thread: | Re: [Xen-devel] removing event notification for HVM IRQ injection? , Keir Fraser |
| Indexes: | [Date] [Thread] [Top] [All Lists] |