[Xen-devel] [PATCH 11/17] xen/arm64: head: Document enable_mmu()

[Julien Grall <julien.grall@xxxxxxx>]

Document the behavior and the main registers usage within enable_mmu().

Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
---
 xen/arch/arm/arm64/head.S | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S
index 7b92c1c8eb..d673f7c0d8 100644
--- a/xen/arch/arm/arm64/head.S
+++ b/xen/arch/arm/arm64/head.S
@@ -583,6 +583,13 @@ virtphys_clash:
         ret
 ENDPROC(create_page_tables)
 
+/*
+ * Turn on the Data Cache and the MMU. The function will return on the ID
+ * mapping. In other word, the caller is responsible to switch to the runtime
+ * mapping.
+ *
+ * Clobbers x0 - x1
+ */
 enable_mmu:
         PRINT("- Turning on paging -\r\n")
 
-- 
2.11.0


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