From c428ca80c298df55db242571d868dae7b475ccb5 Mon Sep 17 00:00:00 2001
From: Ye Li <ye.li@nxp.com>
Date: Thu, 25 Mar 2021 17:30:06 +0800
Subject: [PATCH] imx: hab: Add function to authenticate kernel image
When loading kernel image, the image size is parsed from header, so it
does not include the CSF and IVT.
Add back the authenticate_image function to wrap the imx_hab_authenticate_image
with calculating IVT offset and full image size.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
arch/arm/mach-imx/hab.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm/mach-imx/hab.c b/arch/arm/mach-imx/hab.c
index d0757d8b66..66ac440349 100644
--- a/arch/arm/mach-imx/hab.c
+++ b/arch/arm/mach-imx/hab.c
@@ -698,3 +698,15 @@ hab_authentication_exit:
return result;
}
+
+int authenticate_image(u32 ddr_start, u32 raw_image_size)
+{
+ u32 ivt_offset;
+ size_t bytes;
+
+ ivt_offset = (raw_image_size + ALIGN_SIZE - 1) &
+ ~(ALIGN_SIZE - 1);
+ bytes = ivt_offset + IVT_SIZE + CSF_PAD_SIZE;
+
+ return imx_hab_authenticate_image(ddr_start, bytes, ivt_offset);
+}
--
2.39.5