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authorBryan O'Donoghue <bryan.odonoghue@linaro.org>2018-03-13 16:50:35 +0000
committerTom Rini <trini@konsulko.com>2018-03-19 16:14:25 -0400
commit45b55712d45150a810950aae84355e54c945cfcb (patch)
treedd9cf56bb02ab5b67181aa6425ceb84971368a94 /tools/default_image.c
parent6ffc4200457e0616d51f3a7219bbd486d564a4e6 (diff)
image: Add IH_OS_TEE for TEE chain-load boot
This patch adds a new type IH_OS_TEE. This new OS type will be used for chain-loading to Linux via a TEE. With this patch in-place you can generate a bootable OPTEE image like this: mkimage -A arm -T kernel -O tee -C none -d tee.bin uTee.optee where "tee.bin" is the input binary prefixed with an OPTEE header and uTee.optee is the output prefixed with a u-boot wrapper header. This image type "-T kernel -O tee" is differentiated from the existing IH_TYPE_TEE "-T tee" in that the IH_TYPE is installed by u-boot (flow control returns to u-boot) whereas for the new IH_OS_TEE control passes to the OPTEE firmware and the firmware chainloads onto Linux. Andrew Davis gave the following ASCII diagram: IH_OS_TEE: (mkimage -T kernel -O tee) Non-Secure Secure BootROM | ------------- | v SPL | v U-Boot ------> <----- OP-TEE | V Linux IH_TYPE_TEE: (mkimage -T tee) Non-Secure Secure BootROM | ------------- | v SPL -------> <----- OP-TEE | v U-Boot | V Linux Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Suggested-by: Andrew F. Davis <afd@ti.com> Cc: Harinarayan Bhatta <harinarayan@ti.com> Cc: Andrew F. Davis <afd@ti.com> Cc: Tom Rini <trini@konsulko.com> Cc: Kever Yang <kever.yang@rock-chips.com> Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Cc: Peng Fan <peng.fan@nxp.com> Link: http://mrvan.github.io/optee-imx6ul
Diffstat (limited to 'tools/default_image.c')
-rw-r--r--tools/default_image.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/tools/default_image.c b/tools/default_image.c
index 4e5568e06a..c67f66b255 100644
--- a/tools/default_image.c
+++ b/tools/default_image.c
@@ -18,6 +18,7 @@
#include "mkimage.h"
#include <image.h>
+#include <tee/optee.h>
#include <u-boot/crc.h>
static image_header_t header;
@@ -90,6 +91,8 @@ static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
uint32_t checksum;
time_t time;
uint32_t imagesize;
+ uint32_t ep;
+ uint32_t addr;
image_header_t * hdr = (image_header_t *)ptr;
@@ -99,18 +102,26 @@ static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
sbuf->st_size - sizeof(image_header_t));
time = imagetool_get_source_date(params, sbuf->st_mtime);
+ ep = params->ep;
+ addr = params->addr;
+
if (params->type == IH_TYPE_FIRMWARE_IVT)
/* Add size of CSF minus IVT */
imagesize = sbuf->st_size - sizeof(image_header_t) + 0x1FE0;
else
imagesize = sbuf->st_size - sizeof(image_header_t);
+ if (params->os == IH_OS_TEE) {
+ addr = optee_image_get_load_addr(hdr);
+ ep = optee_image_get_entry_point(hdr);
+ }
+
/* Build new header */
image_set_magic(hdr, IH_MAGIC);
image_set_time(hdr, time);
image_set_size(hdr, imagesize);
- image_set_load(hdr, params->addr);
- image_set_ep(hdr, params->ep);
+ image_set_load(hdr, addr);
+ image_set_ep(hdr, ep);
image_set_dcrc(hdr, checksum);
image_set_os(hdr, params->os);
image_set_arch(hdr, params->arch);