[PATCH V2 26/30] imx: ahab: Update AHAB for iMX8 and iMX8ULP
Peng Fan (OSS)
peng.fan at oss.nxp.com
Thu Jun 15 12:09:23 CEST 2023
From: Ye Li <ye.li at nxp.com>
Abstract common interfaces for AHAB authentication operations.
Then share some common codes for AHAB and SPL container authentication
Signed-off-by: Ye Li <ye.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
arch/arm/include/asm/mach-imx/ahab.h | 15 ++++
arch/arm/mach-imx/imx8/ahab.c | 129 +++++++++++++++++----------
arch/arm/mach-imx/imx8ulp/Makefile | 1 -
arch/arm/mach-imx/parse-container.c | 81 ++---------------
4 files changed, 103 insertions(+), 123 deletions(-)
create mode 100644 arch/arm/include/asm/mach-imx/ahab.h
diff --git a/arch/arm/include/asm/mach-imx/ahab.h b/arch/arm/include/asm/mach-imx/ahab.h
new file mode 100644
index 00000000000..4222e3db278
--- /dev/null
+++ b/arch/arm/include/asm/mach-imx/ahab.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2020 NXP
+ */
+
+#ifndef __IMX_AHAB_H__
+#define __IMX_AHAB_H__
+
+#include <asm/mach-imx/image.h>
+
+int ahab_auth_cntr_hdr(struct container_hdr *container, u16 length);
+int ahab_auth_release(void);
+int ahab_verify_cntr_image(struct boot_img_t *img, int image_index);
+
+#endif
diff --git a/arch/arm/mach-imx/imx8/ahab.c b/arch/arm/mach-imx/imx8/ahab.c
index 86b0e0b755f..c878743feeb 100644
--- a/arch/arm/mach-imx/imx8/ahab.c
+++ b/arch/arm/mach-imx/imx8/ahab.c
@@ -16,6 +16,7 @@
#include <asm/mach-imx/image.h>
#include <console.h>
#include <cpu_func.h>
+#include <asm/mach-imx/ahab.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -25,6 +26,84 @@ DECLARE_GLOBAL_DATA_PTR;
#define SECO_PT 2U
+int ahab_auth_cntr_hdr(struct container_hdr *container, u16 length)
+{
+ int err;
+
+ memcpy((void *)SEC_SECURE_RAM_BASE, (const void *)container,
+ ALIGN(length, CONFIG_SYS_CACHELINE_SIZE));
+
+ err = sc_seco_authenticate(-1, SC_SECO_AUTH_CONTAINER,
+ SECO_LOCAL_SEC_SEC_SECURE_RAM_BASE);
+ if (err)
+ printf("Authenticate container hdr failed, return %d\n", err);
+
+ return err;
+}
+
+int ahab_auth_release(void)
+{
+ int err;
+
+ err = sc_seco_authenticate(-1, SC_SECO_REL_CONTAINER, 0);
+ if (err)
+ printf("Error: release container failed!\n");
+
+ return err;
+}
+
+int ahab_verify_cntr_image(struct boot_img_t *img, int image_index)
+{
+ sc_faddr_t start, end;
+ sc_rm_mr_t mr;
+ int err;
+ int ret = 0;
+
+ debug("img %d, dst 0x%llx, src 0x%x, size 0x%x\n",
+ image_index, img->dst, img->offset, img->size);
+
+ /* Find the memreg and set permission for seco pt */
+ err = sc_rm_find_memreg(-1, &mr,
+ img->dst & ~(CONFIG_SYS_CACHELINE_SIZE - 1),
+ ALIGN(img->dst + img->size, CONFIG_SYS_CACHELINE_SIZE) - 1);
+
+ if (err) {
+ printf("Error: can't find memreg for image load address 0x%llx, error %d\n",
+ img->dst, err);
+ return -ENOMEM;
+ }
+
+ err = sc_rm_get_memreg_info(-1, mr, &start, &end);
+ if (!err)
+ debug("memreg %u 0x%llx -- 0x%llx\n", mr, start, end);
+
+ err = sc_rm_set_memreg_permissions(-1, mr,
+ SECO_PT, SC_RM_PERM_FULL);
+ if (err) {
+ printf("Set permission failed for img %d, error %d\n",
+ image_index, err);
+ return -EPERM;
+ }
+
+ err = sc_seco_authenticate(-1, SC_SECO_VERIFY_IMAGE,
+ 1 << image_index);
+ if (err) {
+ printf("Authenticate img %d failed, return %d\n",
+ image_index, err);
+ ret = -EIO;
+ }
+
+ err = sc_rm_set_memreg_permissions(-1, mr,
+ SECO_PT, SC_RM_PERM_NONE);
+ if (err) {
+ printf("Remove permission failed for img %d, error %d\n",
+ image_index, err);
+ ret = -EPERM;
+ }
+
+ return ret;
+}
+
static inline bool check_in_dram(ulong addr)
{
int i;
@@ -46,8 +125,6 @@ int authenticate_os_container(ulong addr)
struct container_hdr *phdr;
int i, ret = 0;
int err;
- sc_rm_mr_t mr;
- sc_faddr_t start, end;
u16 length;
struct boot_img_t *img;
unsigned long s, e;
@@ -76,14 +153,9 @@ int authenticate_os_container(ulong addr)
length = phdr->length_lsb + (phdr->length_msb << 8);
debug("container length %u\n", length);
- memcpy((void *)SEC_SECURE_RAM_BASE, (const void *)addr,
- ALIGN(length, CONFIG_SYS_CACHELINE_SIZE));
- err = sc_seco_authenticate(-1, SC_SECO_AUTH_CONTAINER,
- SECO_LOCAL_SEC_SEC_SECURE_RAM_BASE);
+ err = ahab_auth_cntr_hdr(phdr, length);
if (err) {
- printf("Authenticate container hdr failed, return %d\n",
- err);
ret = -EIO;
goto exit;
}
@@ -105,50 +177,13 @@ int authenticate_os_container(ulong addr)
flush_dcache_range(s, e);
- /* Find the memreg and set permission for seco pt */
- err = sc_rm_find_memreg(-1, &mr, s, e);
- if (err) {
- printf("Error: can't find memreg for image load address 0x%llx, error %d\n", img->dst, err);
- ret = -ENOMEM;
- goto exit;
- }
-
- err = sc_rm_get_memreg_info(-1, mr, &start, &end);
- if (!err)
- debug("memreg %u 0x%llx -- 0x%llx\n", mr, start, end);
-
- err = sc_rm_set_memreg_permissions(-1, mr, SECO_PT,
- SC_RM_PERM_FULL);
- if (err) {
- printf("Set permission failed for img %d, error %d\n",
- i, err);
- ret = -EPERM;
- goto exit;
- }
-
- err = sc_seco_authenticate(-1, SC_SECO_VERIFY_IMAGE,
- (1 << i));
- if (err) {
- printf("Authenticate img %d failed, return %d\n",
- i, err);
- ret = -EIO;
- }
-
- err = sc_rm_set_memreg_permissions(-1, mr, SECO_PT,
- SC_RM_PERM_NONE);
- if (err) {
- printf("Remove permission failed for img %d, err %d\n",
- i, err);
- ret = -EPERM;
- }
-
+ ret = ahab_verify_cntr_image(img, i);
if (ret)
goto exit;
}
exit:
- if (sc_seco_authenticate(-1, SC_SECO_REL_CONTAINER, 0))
- printf("Error: release container failed!\n");
+ ahab_auth_release();
return ret;
}
diff --git a/arch/arm/mach-imx/imx8ulp/Makefile b/arch/arm/mach-imx/imx8ulp/Makefile
index f7692cf3a78..2c9938fcdf0 100644
--- a/arch/arm/mach-imx/imx8ulp/Makefile
+++ b/arch/arm/mach-imx/imx8ulp/Makefile
@@ -5,7 +5,6 @@
obj-y += lowlevel_init.o
obj-y += soc.o clock.o iomux.o pcc.o cgc.o rdc.o
-obj-$(CONFIG_AHAB_BOOT) += ahab.o
ifeq ($(CONFIG_SPL_BUILD),y)
obj-y += upower/
diff --git a/arch/arm/mach-imx/parse-container.c b/arch/arm/mach-imx/parse-container.c
index c5b3abc4f29..e2a9e2b2732 100644
--- a/arch/arm/mach-imx/parse-container.c
+++ b/arch/arm/mach-imx/parse-container.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
/*
- * Copyright 2018-2019 NXP
+ * Copyright 2018-2021 NXP
*/
#include <common.h>
@@ -10,67 +10,7 @@
#include <spl.h>
#include <asm/mach-imx/image.h>
#ifdef CONFIG_AHAB_BOOT
-#include <firmware/imx/sci/sci.h>
-#endif
-
-#define SEC_SECURE_RAM_BASE 0x31800000UL
-#define SEC_SECURE_RAM_END_BASE (SEC_SECURE_RAM_BASE + 0xFFFFUL)
-#define SECO_LOCAL_SEC_SEC_SECURE_RAM_BASE 0x60000000UL
-
-#define SECO_PT 2U
-
-#ifdef CONFIG_AHAB_BOOT
-static int authenticate_image(struct boot_img_t *img, int image_index)
-{
- sc_faddr_t start, end;
- sc_rm_mr_t mr;
- int err;
- int ret = 0;
-
- debug("img %d, dst 0x%x, src 0x%x, size 0x%x\n",
- image_index, (uint32_t)img->dst, img->offset, img->size);
-
- /* Find the memreg and set permission for seco pt */
- err = sc_rm_find_memreg(-1, &mr,
- img->dst & ~(CONFIG_SYS_CACHELINE_SIZE - 1),
- ALIGN(img->dst + img->size, CONFIG_SYS_CACHELINE_SIZE) - 1);
-
- if (err) {
- printf("can't find memreg for image %d load address 0x%llx, error %d\n",
- image_index, img->dst & ~(CONFIG_SYS_CACHELINE_SIZE - 1), err);
- return -ENOMEM;
- }
-
- err = sc_rm_get_memreg_info(-1, mr, &start, &end);
- if (!err)
- debug("memreg %u 0x%llx -- 0x%llx\n", mr, start, end);
-
- err = sc_rm_set_memreg_permissions(-1, mr,
- SECO_PT, SC_RM_PERM_FULL);
- if (err) {
- printf("set permission failed for img %d, error %d\n",
- image_index, err);
- return -EPERM;
- }
-
- err = sc_seco_authenticate(-1, SC_SECO_VERIFY_IMAGE,
- 1 << image_index);
- if (err) {
- printf("authenticate img %d failed, return %d\n",
- image_index, err);
- ret = -EIO;
- }
-
- err = sc_rm_set_memreg_permissions(-1, mr,
- SECO_PT, SC_RM_PERM_NONE);
- if (err) {
- printf("remove permission failed for img %d, error %d\n",
- image_index, err);
- ret = -EPERM;
- }
-
- return ret;
-}
+#include <asm/mach-imx/ahab.h>
#endif
static struct boot_img_t *read_auth_image(struct spl_image_info *spl_image,
@@ -111,10 +51,8 @@ static struct boot_img_t *read_auth_image(struct spl_image_info *spl_image,
}
#ifdef CONFIG_AHAB_BOOT
- if (authenticate_image(&images[image_index], image_index)) {
- printf("Failed to authenticate image %d\n", image_index);
+ if (ahab_verify_cntr_image(&images[image_index], image_index))
return NULL;
- }
#endif
return &images[image_index];
@@ -180,15 +118,9 @@ static int read_auth_container(struct spl_image_info *spl_image,
}
#ifdef CONFIG_AHAB_BOOT
- memcpy((void *)SEC_SECURE_RAM_BASE, (const void *)container,
- ALIGN(length, CONFIG_SYS_CACHELINE_SIZE));
-
- ret = sc_seco_authenticate(-1, SC_SECO_AUTH_CONTAINER,
- SECO_LOCAL_SEC_SEC_SECURE_RAM_BASE);
- if (ret) {
- printf("authenticate container hdr failed, return %d\n", ret);
+ ret = ahab_auth_cntr_hdr(container, length);
+ if (ret)
goto end_auth;
- }
#endif
for (i = 0; i < container->num_images; i++) {
@@ -209,8 +141,7 @@ static int read_auth_container(struct spl_image_info *spl_image,
end_auth:
#ifdef CONFIG_AHAB_BOOT
- if (sc_seco_authenticate(-1, SC_SECO_REL_CONTAINER, 0))
- printf("Error: release container failed!\n");
+ ahab_auth_release();
#endif
end:
--
2.40.0
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