From d14d218a4bcc608ea24e9dcd14aeb88b958f9b16 Mon Sep 17 00:00:00 2001 From: Julien Grall Date: Sat, 20 Apr 2019 13:33:31 +0100 Subject: [PATCH] xen/arm32: head: Document enable_mmu() Document the behavior and the main registers usage within enable_mmu(). Signed-off-by: Julien Grall Reviewed-by: Stefano Stabellini --- xen/arch/arm/arm32/head.S | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/xen/arch/arm/arm32/head.S b/xen/arch/arm/arm32/head.S index 83f8774e2a..f8603051e4 100644 --- a/xen/arch/arm/arm32/head.S +++ b/xen/arch/arm/arm32/head.S @@ -423,6 +423,13 @@ virtphys_clash: b fail ENDPROC(create_page_tables) +/* + * Turn on the Data Cache and the MMU. The function will return on the 1:1 + * mapping. In other word, the caller is responsible to switch to the runtime + * mapping. + * + * Clobbers r0 - r3 + */ enable_mmu: PRINT("- Turning on paging -\r\n") -- 2.39.5