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Re: [Xen-devel] [PATCH] [HVM] Prevent usb driver crashes in Windows
| To: | Steve Ofsthun <sofsthun@xxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] [HVM] Prevent usb driver crashes in Windows |
| From: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Date: | Wed, 06 Jun 2007 19:22:45 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, Ben Guthro <bguthro@xxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 06 Jun 2007 11:20:53 -0700 |
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| Thread-topic: | [Xen-devel] [PATCH] [HVM] Prevent usb driver crashes in Windows |
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On 6/6/07 18:03, "Steve Ofsthun" <sofsthun@xxxxxxxxxxxxxxx> wrote: >> What precisely is the race? Qemu-dm is single threaded. Memcpy() probably >> ends up doing int copies anyway if things are appropriately aligned >> (although we might not want to rely on that). > > The race is between a domU guest cpu running guest driver code and a dom0 > cpu running the timer based USB emulation code in QEMU. I see. Thanks! -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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