linux/include/xen
Julien Grall 3922f32c1e xen/grant: Add helper gnttab_page_grant_foreign_access_ref_one
Many PV drivers contain the idiom:

pfn = page_to_gfn(...) /* Or similar */
gnttab_grant_foreign_access_ref

Replace it by a new helper. Note that when Linux is using a different
page granularity than Xen, the helper only gives access to the first 4KB
grant.

This is useful where drivers are allocating a full Linux page for each
grant.

Also include xen/interface/grant_table.h rather than xen/grant_table.h in
asm/page.h for x86 to fix a compilation issue [1]. Only the former is
useful in order to get the structure definition.

[1] Interdependency between asm/page.h and xen/grant_table.h which result
to page_mfn not being defined when necessary.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2015-10-23 14:20:34 +01:00
..
interface x86/xen: Support kexec/kdump in HVM guests by doing a soft reset 2015-09-28 14:48:52 +01:00
acpi.h xen / ACPI: notify xen when reduced hardware sleep is available 2013-07-31 14:22:35 +02:00
balloon.h xen/balloon: use hotplugged pages for foreign mappings etc. 2015-10-23 14:20:05 +01:00
events.h xen/events: Support event channel rebind on ARM 2015-08-20 12:24:15 +01:00
features.h
grant_table.h xen/grant: Add helper gnttab_page_grant_foreign_access_ref_one 2015-10-23 14:20:34 +01:00
hvc-console.h
hvm.h xen: Convert printks to pr_<level> 2013-06-28 11:19:58 -04:00
page.h xen: Add Xen specific page definition 2015-10-23 14:20:33 +01:00
platform_pci.h xen/pvhvm: Remove the xen_platform_pci int. 2014-01-03 14:54:53 -05:00
swiotlb-xen.h Merge remote-tracking branch 'stefano/swiotlb-xen-9.1' into stable/for-linus-3.13 2013-11-08 16:10:48 -05:00
tmem.h xen: tmem: enable Xen tmem shim to be built/loaded as a module 2013-04-30 17:04:01 -07:00
xen-ops.h xen/privcmd: Further s/MFN/GFN/ clean-up 2015-09-08 18:03:54 +01:00
xen.h xen/pvh/x86: Define what an PVH guest is (v3). 2014-01-06 10:43:58 -05:00
xenbus.h xenbus_client: Extend interface to support multi-page ring 2015-04-15 10:56:47 +01:00
xenbus_dev.h