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authorJulien Grall <julien.grall@citrix.com>2015-06-19 17:49:03 +0100
committerDavid Vrabel <david.vrabel@citrix.com>2015-10-23 14:20:33 +0100
commit008c320a96d218712043f8db0111d5472697785c (patch)
treead1140a3a51567e5bb14b71fe002ba40db3bf681 /arch/x86/include/asm/xen/page.h
parent1084b1988d22dc165c9dbbc2b0e057f9248ac4db (diff)
downloadlinux-008c320a96d218712043f8db0111d5472697785c.tar.bz2
xen/grant: Introduce helpers to split a page into grant
Currently, a grant is always based on the Xen page granularity (i.e 4KB). When Linux is using a different page granularity, a single page will be split between multiple grants. The new helpers will be in charge of splitting the Linux page into grants and call a function given by the caller on each grant. Also provide an helper to count the number of grants within a given contiguous region. Note that the x86/include/asm/xen/page.h is now including xen/interface/grant_table.h rather than xen/grant_table.h. It's necessary because xen/grant_table.h depends on asm/xen/page.h and will break the compilation. Furthermore, only definition in interface/grant_table.h is required. 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>
Diffstat (limited to 'arch/x86/include/asm/xen/page.h')
-rw-r--r--arch/x86/include/asm/xen/page.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index b922fa4bb4a1..fe58e3a935de 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -12,7 +12,7 @@
#include <asm/pgtable.h>
#include <xen/interface/xen.h>
-#include <xen/grant_table.h>
+#include <xen/interface/grant_table.h>
#include <xen/features.h>
/* Xen machine address */