| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Move MEMZONE_XEN to the last |
| From: | "Tian, Kevin" <kevin.tian@xxxxxxxxx> |
| Date: | 2007年3月21日 13:56:58 +0800 |
| Cc: | "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> |
| Delivery-date: | 2007年3月20日 22:56:04 -0700 |
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| Thread-index: | AcdrfbxSnJLS4ENvSZCWOz4WCGzqkw== |
| Thread-topic: | Move MEMZONE_XEN to the last |
Zone index for domain heap is derived from bits, while zone index for xen heap takes 0 to catch all. This looks a bit messed which prevents future extension. For example, if Xen can be located at higher memory: - The assumption that domheap starts from MEMZONE_XEN+1 doesn't hold true - The memory within the very bit but out of xenheap can't be claimed by domheap since that bit belongs to xenheap exclusively So how about moving MEMZONE_XEN to the last (current NR_ZONES plus 1)? That can ensure domheap covering all possible bits exactly. Thanks, Kevin _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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