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RE: [Xen-devel] About IO
| To: | "Liu, Huahang" <huahang.liu@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] About IO |
| From: | "Li, Xin B" <xin.b.li@xxxxxxxxx> |
| Date: | Fri, 30 Mar 2007 11:36:51 +0800 |
| Delivery-date: | Fri, 30 Mar 2007 04:38:04 +0100 |
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| Thread-topic: | [Xen-devel] About IO |
>What is the MMIO address space of Xen HVM? >From 4G-256M to 4G, you can take a look at the definition of HVM_BELOW_4G_MMIO_LENGTH. >What happen when I read from or write to these IO ports? Depends on the devices located there, if no device, Read returns ~0, while writes are ignored. -Xin _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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