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Re: [Xen-devel] [PATCH 2 of 4] x86: make the pv-only e820 array be dynam
| To: | Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH 2 of 4] x86: make the pv-only e820 array be dynamic |
| From: | Keir Fraser <keir@xxxxxxx> |
| Date: | Tue, 12 Apr 2011 14:06:05 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, Ian.Campbell@xxxxxxxxxx, Tim.Deegan@xxxxxxxxxx |
| Delivery-date: | Tue, 12 Apr 2011 06:08:17 -0700 |
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| Thread-topic: | [Xen-devel] [PATCH 2 of 4] x86: make the pv-only e820 array be dynamic |
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On 12/04/2011 13:53, "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx> wrote: >> How cunning. >> >> Why wouldn't you just allocate exactly the right size of array in >> XENMEM_set_memory_map? > > I was thinking about it, but the mm.c code did not have the > xen/xmalloc.h header, nor any references to xmalloc_array. > > Is it OK to make an xmalloc_array during a hypercall? Yes. I think the toolstack should be able to clean up on the newly-possible ENOMEM return from this hypercall. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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