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[Xen-devel] RE: Will map_domain_page return NULL when fails on x86_32?
| To: | "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] RE: Will map_domain_page return NULL when fails on x86_32? |
| From: | "Li, Xin B" <xin.b.li@xxxxxxxxx> |
| Date: | Mon, 27 Feb 2006 21:34:48 +0800 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Mon, 27 Feb 2006 13:35:23 +0000 |
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| Thread-index: | AcY7oGIjWgaQ2NKQQr2dNCyUtDdXJAAAe7mA |
| Thread-topic: | Will map_domain_page return NULL when fails on x86_32? |
>> Hi Keir, just a curious question, will map_domain_page >return NULL when >> fails on x86_32? If not, why? >> thanks > >I don't expect that it should ever fail. It's used for temporary >mappings (e.g., scope of a function) and so even though the mapping >space is finite, we shouldn't ever exhaust it. So the unmap is not a must? Can you explain the mechanism of garbage collection here? Thanks -Xin > >The map_domain_page_global() space is a different matter... > > -- Keir > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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