OpenCloudOS-Kernel/drivers/xen
Daniel De Graaf aab8f11a6b xen-gntdev: Support mapping in HVM domains
HVM does not allow direct PTE modification, so instead we request
that Xen change its internal p2m mappings on the allocated pages and
map the memory into userspace normally.

Note:
The HVM path for map and unmap is slightly different: HVM keeps the pages
mapped until the area is deleted, while the PV case (use_ptemod being true)
must unmap them when userspace unmaps the range. In the normal use case,
this makes no difference to users since unmap time is deletion time.

[v2: Expanded commit descr.]
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14 14:15:55 -05:00
..
xenbus xen/xenbus: fixup checkpatch issues in xenbus_probe* 2011-01-05 16:31:08 -05:00
xenfs Merge branch 'xen/xenbus' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2011-01-20 16:37:28 -08:00
Kconfig Merge branch 'stable/gntdev' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-01-13 18:46:48 -08:00
Makefile Merge branch 'stable/gntdev' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-01-13 18:46:48 -08:00
balloon.c xen: prevent crashes with non-HIGHMEM 32-bit kernels with largeish memory 2010-12-02 15:30:06 -08:00
biomerge.c xen: define BIOVEC_PHYS_MERGEABLE() 2010-10-18 10:40:28 -04:00
cpu_hotplug.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
events.c Merge branch 'stable/bug-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-01-10 08:48:46 -08:00
evtchn.c Merge branch 'xen/dev-evtchn' into upstream/evtchn 2010-11-18 22:43:38 -08:00
features.c xen: clean up asm/xen/hypervisor.h 2008-12-16 21:50:31 +01:00
gntdev.c xen-gntdev: Support mapping in HVM domains 2011-02-14 14:15:55 -05:00
grant-table.c xen-gntdev: Support mapping in HVM domains 2011-02-14 14:15:55 -05:00
manage.c xen: resume the pv console for hvm guests too 2010-12-02 14:40:48 +00:00
pci.c xen: register xen pci notifier 2010-10-27 18:56:07 +01:00
platform-pci.c xen-platform: use PCI interfaces to request IO and MEM resources. 2011-01-12 10:28:01 -05:00
swiotlb-xen.c swiotlb-xen: SWIOTLB library for Xen PV guest with PCI passthrough. 2010-07-27 11:51:00 -04:00
sys-hypervisor.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xencomm.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00