[PATCH 5/5] X86/XEN: Add few lines explaining simple semantic for x86_init.paging.pagetable_init PVOPS

[Attilio Rao]

- Explain the purpose of the PVOPS
- Report execution constraints

Signed-off-by: Attilio Rao <attilio.rao@xxxxxxxxxx>
---
 arch/x86/include/asm/x86_init.h |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 995ea5c..7ea4186 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -82,6 +82,11 @@ struct x86_init_mapping {
 /**
  * struct x86_init_paging - platform specific paging functions
  * @pagetable_init:		platform specific paging initialization call
+ *
+ * It does setup the kernel pagetables and prepares accessors functions to
+ * manipulate them.
+ * It must be called once, during the boot sequence and after the direct
+ * mapping for phys memory is setup.
  */
 struct x86_init_paging {
 	void (*pagetable_init)(void);
-- 
1.7.2.5

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