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9bdc7304f5
linux/drivers/xen
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Oleksandr Andrushchenko 9bdc7304f5 xen/grant-table: Allow allocating buffers suitable for DMA 
Extend grant table module API to allow allocating buffers that can
be used for DMA operations and mapping foreign grant references
on top of those.
The resulting buffer is similar to the one allocated by the balloon
driver in that proper memory reservation is made by
({increase|decrease}_reservation and VA mappings are updated if
needed).
This is useful for sharing foreign buffers with HW drivers which
cannot work with scattered buffers provided by the balloon driver,
but require DMAable memory instead.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-07-26 23:05:14 -04:00
..
events xen: Remove unnecessary BUG_ON from __unbind_from_irq() 2018-06-22 08:32:52 +02:00
xen-pciback treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
xenbus xen/store: do not store local values in xen_start_info 2018-05-17 08:39:13 +02:00
xenfs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acpi.c
arm-device.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
balloon.c xen/balloon: Share common memory reservation routines 2018-07-26 23:05:13 -04:00
biomerge.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpu_hotplug.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dbgp.c
efi.c xen: Implement EFI reset_system callback 2017-05-02 12:06:50 +02:00
evtchn.c treewide: kvmalloc() -> kvmalloc_array() 2018-06-12 16:19:22 -07:00
fallback.c
features.c
gntalloc.c mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
gntdev.c xen/gntdev: Fix partial gntdev_mmap() cleanup 2018-01-10 08:38:44 -05:00
grant-table.c xen/grant-table: Allow allocating buffers suitable for DMA 2018-07-26 23:05:14 -04:00
Kconfig xen/grant-table: Allow allocating buffers suitable for DMA 2018-07-26 23:05:14 -04:00
Makefile xen/balloon: Share common memory reservation routines 2018-07-26 23:05:13 -04:00
manage.c xen: add error handling for xenbus_printf 2018-06-19 14:27:41 +02:00
mcelog.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
mem-reservation.c xen/balloon: Share common memory reservation routines 2018-07-26 23:05:13 -04:00
pci.c
pcpu.c
platform-pci.c xen-platform: constify pci_device_id. 2017-08-31 09:45:55 -04:00
preempt.c
privcmd-buf.c xen: add new hypercall buffer mapping device 2018-06-22 08:26:42 +02:00
privcmd.c xen: add new hypercall buffer mapping device 2018-06-22 08:26:42 +02:00
privcmd.h xen: add new hypercall buffer mapping device 2018-06-22 08:26:42 +02:00
pvcalls-back.c xen/pvcalls: fix null pointer dereference on map->sock 2018-02-26 17:13:12 +01:00
pvcalls-front.c pvcalls-front: 64-bit align flags 2018-03-01 07:23:36 +01:00
pvcalls-front.h xen: fix poll misannotation 2018-02-01 10:07:32 -05:00
swiotlb-xen.c xen-swiotlb: fix the check condition for xen_swiotlb_free_coherent 2018-05-18 14:37:16 -04:00
sys-hypervisor.c xen: add sysfs node for hypervisor build id 2017-06-15 08:50:37 +02:00
time.c xen: features and fixes for v4.15-rc1 2017-11-16 13:06:27 -08:00
tmem.c mm, swap, frontswap: fix THP swap if frontswap enabled 2018-02-21 15:35:43 -08:00
xen-acpi-cpuhotplug.c
xen-acpi-memhotplug.c
xen-acpi-pad.c
xen-acpi-processor.c xen/acpi: off by one in read_acpi_id() 2018-03-30 11:30:13 -04:00
xen-balloon.c xen: fix booting ballooned down hvm guest 2017-10-26 08:11:44 -04:00
xen-scsiback.c xen/scsiback: add error handling for xenbus_printf 2018-06-19 14:54:49 +02:00
xen-selfballoon.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-stub.c
xlate_mmu.c