linux

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History

David Vrabel cd12909cb5 xen: map foreign pages for shared rings by updating the PTEs directly

When mapping a foreign page with xenbus_map_ring_valloc() with the
GNTTABOP_map_grant_ref hypercall, set the GNTMAP_contains_pte flag and
pass a pointer to the PTE (in init_mm).

After the page is mapped, the usual fault mechanism can be used to
update additional MMs.  This allows the vmalloc_sync_all() to be
removed from alloc_vm_area().

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
[v1: Squashed fix by Michal for no-mmu case]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>

2011-11-16 12:13:08 -05:00

Makefile

xen: add backend driver support

2011-01-05 16:29:58 -05:00

xenbus_client.c

xen: map foreign pages for shared rings by updating the PTEs directly

2011-11-16 12:13:08 -05:00

xenbus_comms.c

xen/pv-on-hvm kexec+kdump: reset PV devices in kexec or crash kernel

2011-09-01 11:49:03 -04:00

xenbus_comms.h

xen: add the Xenbus sysfs and virtual device hotplug driver