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A memory region must be physically contiguous in order to be accessed through DMA. This patch adds xen_create_contiguous_region, which ensures a region of contiguous virtual memory is also physically contiguous. Based on Stephen Tweedie's port of the 2.6.18-xen version. Remove contiguous_bitmap[] as it's no longer needed. Ported from linux-2.6.18-xen.hg 707:e410857fd83c [ Impact: add Xen-internal API to make pages phys-contig ] Signed-off-by: Alex Nixon <alex.nixon@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
History
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| .. | ||
| io | ||
| callback.h | ||
| elfnote.h | ||
| event_channel.h | ||
| features.h | ||
| grant_table.h | ||
| memory.h | ||
| physdev.h | ||
| sched.h | ||
| vcpu.h | ||
| version.h | ||
| xen.h | ||
| xencomm.h | ||