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authorAndrew Thoelke <andrew.thoelke@arm.com>2014-05-23 11:00:04 +0100
committerAndrew Thoelke <andrew.thoelke@arm.com>2014-05-23 11:00:04 +0100
commitdb0de0eb50db3712b271a7a4ef8ca494ab79bffa (patch)
tree03809d832bf357a05a4449e5b35c121c2bcab9d7
parent3ea8540d3c582787218a8c621c36d1468e9dea93 (diff)
parentdbad1bacba0a7adfd3c7c559f0fd0805087aeddd (diff)
downloadarm-trusted-firmware-db0de0eb50db3712b271a7a4ef8ca494ab79bffa.tar.gz
Merge pull request #99 from vikramkanigiri:vk/tf-issues-133_V3
-rw-r--r--Makefile6
-rw-r--r--bl1/aarch64/bl1_entrypoint.S74
-rw-r--r--bl1/aarch64/bl1_exceptions.S97
-rw-r--r--bl1/bl1_main.c99
-rw-r--r--bl2/aarch64/bl2_entrypoint.S2
-rw-r--r--bl2/bl2_main.c154
-rw-r--r--bl31/aarch64/bl31_entrypoint.S59
-rw-r--r--bl31/bl31.mk1
-rw-r--r--bl31/bl31_main.c17
-rw-r--r--bl32/tsp/aarch64/tsp_entrypoint.S12
-rw-r--r--bl32/tsp/tsp_main.c27
-rw-r--r--common/bl_common.c218
-rw-r--r--include/bl2/bl2.h23
-rw-r--r--include/bl31/bl31.h11
-rw-r--r--include/common/asm_macros.S35
-rw-r--r--include/common/bl_common.h138
-rw-r--r--include/lib/aarch64/arch.h74
-rw-r--r--plat/fvp/aarch64/bl1_plat_helpers.S213
-rw-r--r--plat/fvp/aarch64/plat_common.c62
-rw-r--r--plat/fvp/aarch64/plat_helpers.S129
-rw-r--r--plat/fvp/bl1_plat_setup.c30
-rw-r--r--plat/fvp/bl2_plat_setup.c197
-rw-r--r--plat/fvp/bl31_plat_setup.c118
-rw-r--r--plat/fvp/bl32_plat_setup.c29
-rw-r--r--plat/fvp/plat_pm.c7
-rw-r--r--plat/fvp/platform.h87
-rw-r--r--plat/fvp/platform.mk6
-rw-r--r--services/spd/tspd/tspd_common.c2
-rw-r--r--services/spd/tspd/tspd_main.c25
-rw-r--r--services/std_svc/psci/psci_common.c21
30 files changed, 1119 insertions, 854 deletions
diff --git a/Makefile b/Makefile
index 8ec8472..1069cd5 100644
--- a/Makefile
+++ b/Makefile
@@ -47,6 +47,8 @@ SPD := none
BASE_COMMIT := origin/master
# NS timer register save and restore
NS_TIMER_SWITCH := 0
+# By default, Bl1 acts as the reset handler, not BL31
+RESET_TO_BL31 := 0
# Checkpatch ignores
@@ -178,6 +180,10 @@ endif
$(eval $(call assert_boolean,NS_TIMER_SWITCH))
$(eval $(call add_define,NS_TIMER_SWITCH))
+# Process RESET_TO_BL31 flag
+$(eval $(call assert_boolean,RESET_TO_BL31))
+$(eval $(call add_define,RESET_TO_BL31))
+
ASFLAGS += -nostdinc -ffreestanding -Wa,--fatal-warnings \
-mgeneral-regs-only -D__ASSEMBLY__ \
${DEFINES} ${INCLUDES}
diff --git a/bl1/aarch64/bl1_entrypoint.S b/bl1/aarch64/bl1_entrypoint.S
index 7259601..cbbaead 100644
--- a/bl1/aarch64/bl1_entrypoint.S
+++ b/bl1/aarch64/bl1_entrypoint.S
@@ -59,6 +59,15 @@ func bl1_entrypoint
*/
bl cpu_reset_handler
+ /* -------------------------------
+ * Enable the instruction cache.
+ * -------------------------------
+ */
+ mrs x0, sctlr_el3
+ orr x0, x0, #SCTLR_I_BIT
+ msr sctlr_el3, x0
+ isb
+
/* ---------------------------------------------
* Set the exception vector to something sane.
* ---------------------------------------------
@@ -90,16 +99,6 @@ func bl1_entrypoint
msr cptr_el3, x0
/* ---------------------------------------------
- * Enable the instruction cache.
- * ---------------------------------------------
- */
- mrs x0, sctlr_el3
- orr x0, x0, #SCTLR_I_BIT
- msr sctlr_el3, x0
- isb
-
-_wait_for_entrypoint:
- /* ---------------------------------------------
* Find the type of reset and jump to handler
* if present. If the handler is null then it is
* a cold boot. The primary cpu will set up the
@@ -107,22 +106,10 @@ _wait_for_entrypoint:
* their turn to be woken up
* ---------------------------------------------
*/
- mrs x0, mpidr_el1
- bl platform_get_entrypoint
- cbnz x0, _do_warm_boot
- mrs x0, mpidr_el1
- bl platform_is_primary_cpu
- cbnz x0, _do_cold_boot
+ wait_for_entrypoint
- /* ---------------------------------------------
- * Perform any platform specific secondary cpu
- * actions
- * ---------------------------------------------
- */
- bl plat_secondary_cold_boot_setup
- b _wait_for_entrypoint
+ bl platform_mem_init
-_do_cold_boot:
/* ---------------------------------------------
* Init C runtime environment.
* - Zero-initialise the NOBITS sections.
@@ -148,19 +135,38 @@ _do_cold_boot:
bl memcpy16
/* ---------------------------------------------
- * Initialize platform and jump to our c-entry
- * point for this type of reset
+ * Give ourselves a small coherent stack to
+ * ease the pain of initializing the MMU and
+ * CCI in assembler
+ * ---------------------------------------------
+ */
+ mrs x0, mpidr_el1
+ bl platform_set_coherent_stack
+
+ /* ---------------------------------------------
+ * Architectural init. can be generic e.g.
+ * enabling stack alignment and platform spec-
+ * ific e.g. MMU & page table setup as per the
+ * platform memory map. Perform the latter here
+ * and the former in bl1_main.
* ---------------------------------------------
*/
- adr x0, bl1_main
- bl platform_cold_boot_init
- b _panic
+ bl bl1_early_platform_setup
+ bl bl1_plat_arch_setup
-_do_warm_boot:
/* ---------------------------------------------
- * Jump to BL31 for all warm boot init.
+ * Give ourselves a stack allocated in Normal
+ * -IS-WBWA memory
* ---------------------------------------------
*/
- blr x0
-_panic:
- b _panic
+ mrs x0, mpidr_el1
+ bl platform_set_stack
+
+ /* --------------------------------------------------
+ * Initialize platform and jump to our c-entry point
+ * for this type of reset. Panic if it returns
+ * --------------------------------------------------
+ */
+ bl bl1_main
+panic:
+ b panic
diff --git a/bl1/aarch64/bl1_exceptions.S b/bl1/aarch64/bl1_exceptions.S
index a87b20f..8ab9df8 100644
--- a/bl1/aarch64/bl1_exceptions.S
+++ b/bl1/aarch64/bl1_exceptions.S
@@ -112,13 +112,51 @@ SErrorSPx:
*/
.align 7
SynchronousExceptionA64:
- /* ---------------------------------------------
+ /* ------------------------------------------------
* Only a single SMC exception from BL2 to ask
* BL1 to pass EL3 control to BL31 is expected
* here.
- * ---------------------------------------------
+ * It expects X0 with RUN_IMAGE SMC function id
+ * X1 with address of a entry_point_info_t structure
+ * describing the BL3-1 entrypoint
+ * ------------------------------------------------
*/
- b process_exception
+ mov x19, x0
+ mov x20, x1
+
+ mrs x0, esr_el3
+ ubfx x1, x0, #ESR_EC_SHIFT, #ESR_EC_LENGTH
+ cmp x1, #EC_AARCH64_SMC
+ b.ne panic
+
+ mov x0, #RUN_IMAGE
+ cmp x19, x0
+ b.ne panic
+
+ mov x0, x20
+ bl display_boot_progress
+
+ ldp x0, x1, [x20, #ENTRY_POINT_INFO_PC_OFFSET]
+ msr elr_el3, x0
+ msr spsr_el3, x1
+ ubfx x0, x1, #MODE_EL_SHIFT, #2
+ cmp x0, #MODE_EL3
+ b.ne panic
+
+ bl disable_mmu_icache_el3
+ tlbi alle3
+
+ ldp x6, x7, [x20, #(ENTRY_POINT_INFO_ARGS_OFFSET + 0x30)]
+ ldp x4, x5, [x20, #(ENTRY_POINT_INFO_ARGS_OFFSET + 0x20)]
+ ldp x2, x3, [x20, #(ENTRY_POINT_INFO_ARGS_OFFSET + 0x10)]
+ ldp x0, x1, [x20, #(ENTRY_POINT_INFO_ARGS_OFFSET + 0x0)]
+ eret
+panic:
+ mov x0, #SYNC_EXCEPTION_AARCH64
+ bl plat_report_exception
+
+ wfi
+ b panic
check_vector_size SynchronousExceptionA64
.align 7
@@ -173,56 +211,3 @@ SErrorA32:
bl plat_report_exception
b SErrorA32
check_vector_size SErrorA32
-
- .align 7
-
-func process_exception
- sub sp, sp, #0x40
- stp x0, x1, [sp, #0x0]
- stp x2, x3, [sp, #0x10]
- stp x4, x5, [sp, #0x20]
- stp x6, x7, [sp, #0x30]
-
- mov x19, x0
- mov x20, x1
- mov x21, x2
- mov x0, #SYNC_EXCEPTION_AARCH64
- bl plat_report_exception
-
- mrs x0, esr_el3
- ubfx x1, x0, #ESR_EC_SHIFT, #ESR_EC_LENGTH
- cmp x1, #EC_AARCH64_SMC
- b.ne panic
- mov x1, #RUN_IMAGE
- cmp x19, x1
- b.ne panic
- mov x0, x20
- mov x1, x21
- mov x2, x3
- mov x3, x4
- bl display_boot_progress
- msr elr_el3, x20
- msr spsr_el3, x21
- ubfx x0, x21, #MODE_EL_SHIFT, #2
- cmp x0, #MODE_EL3
- b.ne skip_mmu_teardown
-
- /* ---------------------------------------------
- * If BL31 is to be executed in EL3 as well
- * then turn off the MMU so that it can perform
- * its own setup.
- * ---------------------------------------------
- */
- bl disable_mmu_icache_el3
- tlbi alle3
-skip_mmu_teardown:
- ldp x6, x7, [sp, #0x30]
- ldp x4, x5, [sp, #0x20]
- ldp x2, x3, [sp, #0x10]
- ldp x0, x1, [sp, #0x0]
- add sp, sp, #0x40
- eret
-
-panic:
- wfi
- b panic
diff --git a/bl1/bl1_main.c b/bl1/bl1_main.c
index de7bc31..da81839 100644
--- a/bl1/bl1_main.c
+++ b/bl1/bl1_main.c
@@ -33,11 +33,40 @@
#include <assert.h>
#include <bl_common.h>
#include <bl1.h>
+#include <debug.h>
#include <platform.h>
#include <stdio.h>
#include "bl1_private.h"
/*******************************************************************************
+ * Runs BL2 from the given entry point. It results in dropping the
+ * exception level
+ ******************************************************************************/
+static void __dead2 bl1_run_bl2(entry_point_info_t *bl2_ep)
+{
+ bl1_arch_next_el_setup();
+
+ /* Tell next EL what we want done */
+ bl2_ep->args.arg0 = RUN_IMAGE;
+
+ if (GET_SECURITY_STATE(bl2_ep->h.attr) == NON_SECURE)
+ change_security_state(GET_SECURITY_STATE(bl2_ep->h.attr));
+
+ write_spsr_el3(bl2_ep->spsr);
+ write_elr_el3(bl2_ep->pc);
+
+ eret(bl2_ep->args.arg0,
+ bl2_ep->args.arg1,
+ bl2_ep->args.arg2,
+ bl2_ep->args.arg3,
+ bl2_ep->args.arg4,
+ bl2_ep->args.arg5,
+ bl2_ep->args.arg6,
+ bl2_ep->args.arg7);
+}
+
+
+/*******************************************************************************
* Function to perform late architectural and platform specific initialization.
* It also locates and loads the BL2 raw binary image in the trusted DRAM. Only
* called by the primary cpu after a cold boot.
@@ -49,10 +78,12 @@ void bl1_main(void)
#if DEBUG
unsigned long sctlr_el3 = read_sctlr_el3();
#endif
- unsigned long bl2_base;
- unsigned int load_type = TOP_LOAD, spsr;
+ unsigned int load_type = TOP_LOAD;
+ image_info_t bl2_image_info = { {0} };
+ entry_point_info_t bl2_ep = { {0} };
meminfo_t *bl1_tzram_layout;
meminfo_t *bl2_tzram_layout = 0x0;
+ int err;
/*
* Ensure that MMU/Caches and coherency are turned on
@@ -71,15 +102,28 @@ void bl1_main(void)
printf(FIRMWARE_WELCOME_STR);
printf("%s\n\r", build_message);
+ SET_PARAM_HEAD(&bl2_image_info, PARAM_IMAGE_BINARY, VERSION_1, 0);
+ SET_PARAM_HEAD(&bl2_ep, PARAM_EP, VERSION_1, 0);
+
/*
* Find out how much free trusted ram remains after BL1 load
* & load the BL2 image at its top
*/
bl1_tzram_layout = bl1_plat_sec_mem_layout();
- bl2_base = load_image(bl1_tzram_layout,
+ err = load_image(bl1_tzram_layout,
(const char *) BL2_IMAGE_NAME,
- load_type, BL2_BASE);
-
+ load_type,
+ BL2_BASE,
+ &bl2_image_info,
+ &bl2_ep);
+ if (err) {
+ /*
+ * TODO: print failure to load BL2 but also add a tzwdog timer
+ * which will reset the system eventually.
+ */
+ printf("Failed to load boot loader stage 2 (BL2) firmware.\n");
+ panic();
+ }
/*
* Create a new layout of memory for BL2 as seen by BL1 i.e.
* tell it the amount of total and free memory available.
@@ -91,30 +135,20 @@ void bl1_main(void)
init_bl2_mem_layout(bl1_tzram_layout,
bl2_tzram_layout,
load_type,
- bl2_base);
+ bl2_image_info.image_base);
- if (bl2_base) {
- bl1_arch_next_el_setup();
- spsr = make_spsr(MODE_EL1, MODE_SP_ELX, MODE_RW_64);
- printf("Booting trusted firmware boot loader stage 2\n\r");
+ bl1_plat_set_bl2_ep_info(&bl2_image_info, &bl2_ep);
+ bl2_ep.args.arg1 = (unsigned long)bl2_tzram_layout;
+ printf("Booting trusted firmware boot loader stage 2\n");
#if DEBUG
- printf("BL2 address = 0x%llx \n\r", (unsigned long long) bl2_base);
- printf("BL2 cpsr = 0x%x \n\r", spsr);
- printf("BL2 memory layout address = 0x%llx \n\r",
- (unsigned long long) bl2_tzram_layout);
+ printf("BL2 address = 0x%llx\n",
+ (unsigned long long) bl2_ep.pc);
+ printf("BL2 cpsr = 0x%x\n", bl2_ep.spsr);
+ printf("BL2 memory layout address = 0x%llx\n",
+ (unsigned long long) bl2_tzram_layout);
#endif
- run_image(bl2_base,
- spsr,
- SECURE,
- (void *) bl2_tzram_layout,
- NULL);
- }
+ bl1_run_bl2(&bl2_ep);
- /*
- * TODO: print failure to load BL2 but also add a tzwdog timer
- * which will reset the system eventually.
- */
- printf("Failed to load boot loader stage 2 (BL2) firmware.\n\r");
return;
}
@@ -122,17 +156,16 @@ void bl1_main(void)
* Temporary function to print the fact that BL2 has done its job and BL31 is
* about to be loaded. This is needed as long as printfs cannot be used
******************************************************************************/
-void display_boot_progress(unsigned long entrypoint,
- unsigned long spsr,
- unsigned long mem_layout,
- unsigned long ns_image_info)
+void display_boot_progress(entry_point_info_t *bl31_ep_info)
{
printf("Booting trusted firmware boot loader stage 3\n\r");
#if DEBUG
- printf("BL31 address = 0x%llx \n\r", (unsigned long long) entrypoint);
- printf("BL31 cpsr = 0x%llx \n\r", (unsigned long long)spsr);
- printf("BL31 memory layout address = 0x%llx \n\r", (unsigned long long)mem_layout);
- printf("BL31 non-trusted image info address = 0x%llx\n\r", (unsigned long long)ns_image_info);
+ printf("BL31 address = 0x%llx\n", (unsigned long long)bl31_ep_info->pc);
+ printf("BL31 cpsr = 0x%llx\n", (unsigned long long)bl31_ep_info->spsr);
+ printf("BL31 params address = 0x%llx\n",
+ (unsigned long long)bl31_ep_info->args.arg0);
+ printf("BL31 plat params address = 0x%llx\n",
+ (unsigned long long)bl31_ep_info->args.arg1);
#endif
return;
}
diff --git a/bl2/aarch64/bl2_entrypoint.S b/bl2/aarch64/bl2_entrypoint.S
index 4f7565f..09eadff 100644
--- a/bl2/aarch64/bl2_entrypoint.S
+++ b/bl2/aarch64/bl2_entrypoint.S
@@ -46,7 +46,6 @@ func bl2_entrypoint
*/
mov x20, x0
mov x21, x1
- mov x22, x2
/* ---------------------------------------------
* This is BL2 which is expected to be executed
@@ -110,7 +109,6 @@ func bl2_entrypoint
* ---------------------------------------------
*/
mov x0, x21
- mov x1, x22
bl bl2_early_platform_setup
bl bl2_plat_arch_setup
diff --git a/bl2/bl2_main.c b/bl2/bl2_main.c
index ac28559..33c63ee 100644
--- a/bl2/bl2_main.c
+++ b/bl2/bl2_main.c
@@ -39,6 +39,25 @@
#include "bl2_private.h"
/*******************************************************************************
+ * Runs BL31 from the given entry point. It jumps to a higher exception level
+ * through an SMC.
+ ******************************************************************************/
+static void __dead2 bl2_run_bl31(entry_point_info_t *bl31_ep_info,
+ unsigned long arg1,
+ unsigned long arg2)
+{
+ /* Set the args pointer */
+ bl31_ep_info->args.arg0 = arg1;
+ bl31_ep_info->args.arg1 = arg2;
+
+ /* Flush the params to be passed to memory */
+ bl2_plat_flush_bl31_params();
+
+ smc(RUN_IMAGE, (unsigned long)bl31_ep_info, 0, 0, 0, 0, 0, 0);
+}
+
+
+/*******************************************************************************
* The only thing to do in BL2 is to load further images and pass control to
* BL31. The memory occupied by BL2 will be reclaimed by BL3_x stages. BL2 runs
* entirely in S-EL1. Since arm standard c libraries are not PIC, printf et al
@@ -47,9 +66,12 @@
void bl2_main(void)
{
meminfo_t *bl2_tzram_layout;
- bl31_args_t *bl2_to_bl31_args;
- unsigned long bl31_base, bl32_base = 0, bl33_base, el_status;
- unsigned int bl2_load, bl31_load, mode;
+ bl31_params_t *bl2_to_bl31_params;
+ unsigned int bl2_load, bl31_load;
+ entry_point_info_t *bl31_ep_info;
+ meminfo_t bl32_mem_info;
+ meminfo_t bl33_mem_info;
+ int e;
/* Perform remaining generic architectural setup in S-El1 */
bl2_arch_setup();
@@ -63,6 +85,13 @@ void bl2_main(void)
bl2_tzram_layout = bl2_plat_sec_mem_layout();
/*
+ * Get a pointer to the memory the platform has set aside to pass
+ * information to BL31.
+ */
+ bl2_to_bl31_params = bl2_plat_get_bl31_params();
+ bl31_ep_info = bl2_plat_get_bl31_ep_info();
+
+ /*
* Load BL31. BL1 tells BL2 whether it has been TOP or BOTTOM loaded.
* To avoid fragmentation of trusted SRAM memory, BL31 is always
* loaded opposite to BL2. This allows BL31 to reclaim BL2 memory
@@ -71,102 +100,71 @@ void bl2_main(void)
bl2_load = bl2_tzram_layout->attr & LOAD_MASK;
assert((bl2_load == TOP_LOAD) || (bl2_load == BOT_LOAD));
bl31_load = (bl2_load == TOP_LOAD) ? BOT_LOAD : TOP_LOAD;
- bl31_base = load_image(bl2_tzram_layout, BL31_IMAGE_NAME,
- bl31_load, BL31_BASE);
+ e = load_image(bl2_tzram_layout,
+ BL31_IMAGE_NAME,
+ bl31_load,
+ BL31_BASE,
+ bl2_to_bl31_params->bl31_image_info,
+ bl31_ep_info);
/* Assert if it has not been possible to load BL31 */
- if (bl31_base == 0) {
+ if (e) {
ERROR("Failed to load BL3-1.\n");
panic();
}
- /*
- * Get a pointer to the memory the platform has set aside to pass
- * information to BL31.
- */
- bl2_to_bl31_args = bl2_get_bl31_args_ptr();
+ bl2_plat_set_bl31_ep_info(bl2_to_bl31_params->bl31_image_info,
+ bl31_ep_info);
- /*
- * Load the BL32 image if there's one. It is upto to platform
- * to specify where BL32 should be loaded if it exists. It
- * could create space in the secure sram or point to a
- * completely different memory. A zero size indicates that the
- * platform does not want to load a BL32 image.
- */
- if (bl2_to_bl31_args->bl32_meminfo.total_size)
- bl32_base = load_image(&bl2_to_bl31_args->bl32_meminfo,
- BL32_IMAGE_NAME,
- bl2_to_bl31_args->bl32_meminfo.attr &
- LOAD_MASK,
- BL32_BASE);
-
- /*
- * Create a new layout of memory for BL31 as seen by BL2. This
- * will gobble up all the BL2 memory.
- */
- init_bl31_mem_layout(bl2_tzram_layout,
- &bl2_to_bl31_args->bl31_meminfo,
- bl31_load);
+ bl2_plat_get_bl33_meminfo(&bl33_mem_info);
/* Load the BL33 image in non-secure memory provided by the platform */
- bl33_base = load_image(&bl2_to_bl31_args->bl33_meminfo,
- BL33_IMAGE_NAME,
- BOT_LOAD,
- plat_get_ns_image_entrypoint());
+ e = load_image(&bl33_mem_info,
+ BL33_IMAGE_NAME,
+ BOT_LOAD,
+ plat_get_ns_image_entrypoint(),
+ bl2_to_bl31_params->bl33_image_info,
+ bl2_to_bl31_params->bl33_ep_info);
+
/* Halt if failed to load normal world firmware. */
- if (bl33_base == 0) {
+ if (e) {
ERROR("Failed to load BL3-3.\n");
panic();
}
+ bl2_plat_set_bl33_ep_info(bl2_to_bl31_params->bl33_image_info,
+ bl2_to_bl31_params->bl33_ep_info);
/*
- * BL2 also needs to tell BL31 where the non-trusted software image
- * is located.
- */
- bl2_to_bl31_args->bl33_image_info.entrypoint = bl33_base;
-
- /* Figure out what mode we enter the non-secure world in */
- el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
- el_status &= ID_AA64PFR0_ELX_MASK;
-
- if (el_status)
- mode = MODE_EL2;
- else
- mode = MODE_EL1;
-
- /*
- * TODO: Consider the possibility of specifying the SPSR in
- * the FIP ToC and allowing the platform to have a say as
- * well.
+ * Load the BL32 image if there's one. It is upto to platform
+ * to specify where BL32 should be loaded if it exists. It
+ * could create space in the secure sram or point to a
+ * completely different memory. A zero size indicates that the
+ * platform does not want to load a BL32 image.
*/
- bl2_to_bl31_args->bl33_image_info.spsr =
- make_spsr(mode, MODE_SP_ELX, MODE_RW_64);
- bl2_to_bl31_args->bl33_image_info.security_state = NON_SECURE;
-
- if (bl32_base) {
- /* Fill BL32 image info */
- bl2_to_bl31_args->bl32_image_info.entrypoint = bl32_base;
- bl2_to_bl31_args->bl32_image_info.security_state = SECURE;
-
- /*
- * The Secure Payload Dispatcher service is responsible for
- * setting the SPSR prior to entry into the BL32 image.
- */
- bl2_to_bl31_args->bl32_image_info.spsr = 0;
+ bl2_plat_get_bl32_meminfo(&bl32_mem_info);
+ if (bl32_mem_info.total_size) {
+ e = load_image(&bl32_mem_info,
+ BL32_IMAGE_NAME,
+ bl32_mem_info.attr &
+ LOAD_MASK,
+ BL32_BASE,
+ bl2_to_bl31_params->bl32_image_info,
+ bl2_to_bl31_params->bl32_ep_info);
+
+ /* Halt if failed to load normal world firmware. */
+ if (e) {
+ WARN("Failed to load BL3-2.\n");
+ } else {
+ bl2_plat_set_bl32_ep_info(
+ bl2_to_bl31_params->bl32_image_info,
+ bl2_to_bl31_params->bl32_ep_info);
+ }
}
- /* Flush the entire BL31 args buffer */
- flush_dcache_range((unsigned long) bl2_to_bl31_args,
- sizeof(*bl2_to_bl31_args));
-
/*
* Run BL31 via an SMC to BL1. Information on how to pass control to
* the BL32 (if present) and BL33 software images will be passed to
* BL31 as an argument.
*/
- run_image(bl31_base,
- make_spsr(MODE_EL3, MODE_SP_ELX, MODE_RW_64),
- SECURE,
- (void *) bl2_to_bl31_args,
- NULL);
+ bl2_run_bl31(bl31_ep_info, (unsigned long)bl2_to_bl31_params, 0);
}
diff --git a/bl31/aarch64/bl31_entrypoint.S b/bl31/aarch64/bl31_entrypoint.S
index 763303b..f582e76 100644
--- a/bl31/aarch64/bl31_entrypoint.S
+++ b/bl31/aarch64/bl31_entrypoint.S
@@ -44,13 +44,34 @@
*/
func bl31_entrypoint
+ /* ---------------------------------------------------------------
+ * Preceding bootloader has populated x0 with a pointer to a
+ * 'bl31_params' structure & x1 with a pointer to platform
+ * specific structure
+ * ---------------------------------------------------------------
+ */
+#if !RESET_TO_BL31
+ mov x20, x0
+ mov x21, x1
+#else
+
+ /* -----------------------------------------------------
+ * Perform any processor specific actions upon reset
+ * e.g. cache, tlb invalidations etc. Override the
+ * Boot ROM(BL0) programming sequence
+ * -----------------------------------------------------
+ */
+ bl cpu_reset_handler
+#endif
+
/* ---------------------------------------------
- * BL2 has populated x0 with the opcode
- * indicating BL31 should be run, x3 with
- * a pointer to a 'bl31_args' structure & x4
- * with any other optional information
+ * Enable the instruction cache.
* ---------------------------------------------
*/
+ mrs x1, sctlr_el3
+ orr x1, x1, #SCTLR_I_BIT
+ msr sctlr_el3, x1
+ isb
/* ---------------------------------------------
* Set the exception vector to something sane.
@@ -82,25 +103,10 @@ func bl31_entrypoint
bic w1, w1, #TFP_BIT
msr cptr_el3, x1
- /* ---------------------------------------------
- * Enable the instruction cache.
- * ---------------------------------------------
- */
- mrs x1, sctlr_el3
- orr x1, x1, #SCTLR_I_BIT
- msr sctlr_el3, x1
- isb
-
- /* ---------------------------------------------
- * Check the opcodes out of paranoia.
- * ---------------------------------------------
- */
- mov x19, #RUN_IMAGE
- cmp x0, x19
- b.ne _panic
- mov x20, x3
- mov x21, x4
-
+#if RESET_TO_BL31
+ wait_for_entrypoint
+ bl platform_mem_init
+#else
/* ---------------------------------------------
* This is BL31 which is expected to be executed
* only by the primary cpu (at least for now).
@@ -110,6 +116,7 @@ func bl31_entrypoint
mrs x0, mpidr_el1
bl platform_is_primary_cpu
cbz x0, _panic
+#endif
/* ---------------------------------------------
* Zero out NOBITS sections. There are 2 of them:
@@ -143,8 +150,14 @@ func bl31_entrypoint
* Perform platform specific early arch. setup
* ---------------------------------------------
*/
+#if RESET_TO_BL31
+ mov x0, 0
+ mov x1, 0
+#else
mov x0, x20
mov x1, x21
+#endif
+
bl bl31_early_platform_setup
bl bl31_plat_arch_setup
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index c0dc2fd..6c9650f 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -37,6 +37,7 @@ BL31_SOURCES += bl31/bl31_main.c \
bl31/aarch64/runtime_exceptions.S \
bl31/aarch64/crash_reporting.S \
common/aarch64/early_exceptions.S \
+ lib/aarch64/cpu_helpers.S \
lib/locks/bakery/bakery_lock.c \
lib/locks/exclusive/spinlock.S \
services/std_svc/std_svc_setup.c \
diff --git a/bl31/bl31_main.c b/bl31/bl31_main.c
index 561dbab..ff7caf1 100644
--- a/bl31/bl31_main.c
+++ b/bl31/bl31_main.c
@@ -43,7 +43,7 @@
* for SP execution. In cases where both SPD and SP are absent, or when SPD
* finds it impossible to execute SP, this pointer is left as NULL
******************************************************************************/
-static int32_t (*bl32_init)(meminfo_t *);
+static int32_t (*bl32_init)(void);
/*******************************************************************************
* Variable to indicate whether next image to execute after BL31 is BL33
@@ -114,11 +114,10 @@ void bl31_main(void)
*/
/*
- * If SPD had registerd an init hook, invoke it. Pass it the information
- * about memory extents
+ * If SPD had registerd an init hook, invoke it.
*/
if (bl32_init)
- (*bl32_init)(bl31_plat_get_bl32_mem_layout());
+ (*bl32_init)();
/*
* We are ready to enter the next EL. Prepare entry into the image
@@ -152,7 +151,7 @@ uint32_t bl31_get_next_image_type(void)
******************************************************************************/
void bl31_prepare_next_image_entry()
{
- el_change_info_t *next_image_info;
+ entry_point_info_t *next_image_info;
uint32_t scr, image_type;
/* Determine which image to execute next */
@@ -182,20 +181,20 @@ void bl31_prepare_next_image_entry()
* Tell the context mgmt. library to ensure that SP_EL3 points to
* the right context to exit from EL3 correctly.
*/
- cm_set_el3_eret_context(next_image_info->security_state,
- next_image_info->entrypoint,
+ cm_set_el3_eret_context(GET_SECURITY_STATE(next_image_info->h.attr),
+ next_image_info->pc,
next_image_info->spsr,
scr);
/* Finally set the next context */
- cm_set_next_eret_context(next_image_info->security_state);
+ cm_set_next_eret_context(GET_SECURITY_STATE(next_image_info->h.attr));
}
/*******************************************************************************
* This function initializes the pointer to BL32 init function. This is expected
* to be called by the SPD after it finishes all its initialization
******************************************************************************/
-void bl31_register_bl32_init(int32_t (*func)(meminfo_t *))
+void bl31_register_bl32_init(int32_t (*func)(void))
{
bl32_init = func;
}
diff --git a/bl32/tsp/aarch64/tsp_entrypoint.S b/bl32/tsp/aarch64/tsp_entrypoint.S
index aeb54bc..fab64cf 100644
--- a/bl32/tsp/aarch64/tsp_entrypoint.S
+++ b/bl32/tsp/aarch64/tsp_entrypoint.S
@@ -55,16 +55,6 @@
func tsp_entrypoint
- /*---------------------------------------------
- * Store the extents of the tzram available to
- * BL32 for future use.
- * TODO: We are assuming that x9-x10 will not be
- * corrupted by any function before platform
- * setup.
- * ---------------------------------------------
- */
- mov x9, x0
- mov x10, x1
/* ---------------------------------------------
* The entrypoint is expected to be executed
@@ -119,8 +109,6 @@ func tsp_entrypoint
* specific early arch. setup e.g. mmu setup
* ---------------------------------------------
*/
- mov x0, x9
- mov x1, x10
bl bl32_early_platform_setup
bl bl32_plat_arch_setup
diff --git a/bl32/tsp/tsp_main.c b/bl32/tsp/tsp_main.c
index a667ffc..a7c7386 100644
--- a/bl32/tsp/tsp_main.c
+++ b/bl32/tsp/tsp_main.c
@@ -38,6 +38,13 @@
#include <tsp.h>
/*******************************************************************************
+ * Declarations of linker defined symbols which will help us find the layout
+ * of trusted SRAM
+ ******************************************************************************/
+extern unsigned long __RO_START__;
+extern unsigned long __COHERENT_RAM_END__;
+
+/*******************************************************************************
* Lock to control access to the console
******************************************************************************/
spinlock_t console_lock;
@@ -66,6 +73,15 @@ static const entry_info_t tsp_entry_info = {
tsp_cpu_suspend_entry,
};
+
+/*******************************************************************************
+ * The BL32 memory footprint starts with an RO sections and ends
+ * with a section for coherent RAM. Use it to find the memory size
+ ******************************************************************************/
+#define BL32_TOTAL_BASE (unsigned long)(&__RO_START__)
+
+#define BL32_TOTAL_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
+
static tsp_args_t *set_smc_args(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
@@ -107,10 +123,6 @@ uint64_t tsp_main(void)
uint64_t mpidr = read_mpidr();
uint32_t linear_id = platform_get_core_pos(mpidr);
-#if DEBUG
- meminfo_t *mem_layout = bl32_plat_sec_mem_layout();
-#endif
-
/* Initialize the platform */
bl32_platform_setup();
@@ -123,10 +135,9 @@ uint64_t tsp_main(void)
spin_lock(&console_lock);
printf("TSP %s\n\r", build_message);
- INFO("Total memory base : 0x%x\n", mem_layout->total_base);
- INFO("Total memory size : 0x%x bytes\n", mem_layout->total_size);
- INFO("Free memory base : 0x%x\n", mem_layout->free_base);
- INFO("Free memory size : 0x%x bytes\n", mem_layout->free_size);
+ INFO("Total memory base : 0x%x\n", (unsigned long)BL32_TOTAL_BASE);
+ INFO("Total memory size : 0x%x bytes\n",
+ (unsigned long)(BL32_TOTAL_LIMIT - BL32_TOTAL_BASE));
INFO("cpu 0x%x: %d smcs, %d erets %d cpu on requests\n", mpidr,
tsp_stats[linear_id].smc_count,
tsp_stats[linear_id].eret_count,
diff --git a/common/bl_common.c b/common/bl_common.c
index 86b0cc5..911ad4c 100644
--- a/common/bl_common.c
+++ b/common/bl_common.c
@@ -35,6 +35,7 @@
#include <debug.h>
#include <io_storage.h>
#include <platform.h>
+#include <errno.h>
#include <stdio.h>
unsigned long page_align(unsigned long value, unsigned dir)
@@ -71,135 +72,13 @@ void change_security_state(unsigned int target_security_state)
write_scr(scr);
}
-void __dead2 drop_el(aapcs64_params_t *args,
- unsigned long spsr,
- unsigned long entrypoint)
-{
- write_spsr_el3(spsr);
- write_elr_el3(entrypoint);
- eret(args->arg0,
- args->arg1,
- args->arg2,
- args->arg3,
- args->arg4,
- args->arg5,
- args->arg6,
- args->arg7);
-}
-
-void __dead2 raise_el(aapcs64_params_t *args)
-{
- smc(args->arg0,
- args->arg1,
- args->arg2,
- args->arg3,
- args->arg4,
- args->arg5,
- args->arg6,
- args->arg7);
-}
-
-/*
- * TODO: If we are not EL3 then currently we only issue an SMC.
- * Add support for dropping into EL0 etc. Consider adding support
- * for switching from S-EL1 to S-EL0/1 etc.
- */
-void __dead2 change_el(el_change_info_t *info)
-{
- if (IS_IN_EL3()) {
- /*
- * We can go anywhere from EL3. So find where.
- * TODO: Lots to do if we are going non-secure.
- * Flip the NS bit. Restore NS registers etc.
- * Just doing the bare minimal for now.
- */
-
- if (info->security_state == NON_SECURE)
- change_security_state(info->security_state);
-
- drop_el(&info->args, info->spsr, info->entrypoint);
- } else
- raise_el(&info->args);
-}
-
-/* TODO: add a parameter for DAIF. not needed right now */
-unsigned long make_spsr(unsigned long target_el,
- unsigned long target_sp,
- unsigned long target_rw)
-{
- unsigned long spsr;
-
- /* Disable all exceptions & setup the EL */
- spsr = (DAIF_FIQ_BIT | DAIF_IRQ_BIT | DAIF_ABT_BIT | DAIF_DBG_BIT)
- << PSR_DAIF_SHIFT;
- spsr |= PSR_MODE(target_rw, target_el, target_sp);
-
- return spsr;
-}
/*******************************************************************************
- * The next two functions are the weak definitions. Platform specific
- * code can override them if it wishes to.
+ * The next function is a weak definition. Platform specific
+ * code can override it if it wishes to.
******************************************************************************/
/*******************************************************************************
- * Function that takes a memory layout into which BL31 has been either top or
- * bottom loaded. Using this information, it populates bl31_mem_layout to tell
- * BL31 how much memory it has access to and how much is available for use. It
- * does not need the address where BL31 has been loaded as BL31 will reclaim
- * all the memory used by BL2.
- * TODO: Revisit if this and init_bl2_mem_layout can be replaced by a single
- * routine.
- ******************************************************************************/
-void init_bl31_mem_layout(const meminfo_t *bl2_mem_layout,
- meminfo_t *bl31_mem_layout,
- unsigned int load_type)
-{
- if (load_type == BOT_LOAD) {
- /*
- * ------------ ^
- * | BL2 | |
- * |----------| ^ | BL2
- * | | | BL2 free | total
- * | | | size | size
- * |----------| BL2 free base v |
- * | BL31 | |
- * ------------ BL2 total base v
- */
- unsigned long bl31_size;
-
- bl31_mem_layout->free_base = bl2_mem_layout->free_base;
-
- bl31_size = bl2_mem_layout->free_base - bl2_mem_layout->total_base;
- bl31_mem_layout->free_size = bl2_mem_layout->total_size - bl31_size;
- } else {
- /*
- * ------------ ^
- * | BL31 | |
- * |----------| ^ | BL2
- * | | | BL2 free | total
- * | | | size | size
- * |----------| BL2 free base v |
- * | BL2 | |
- * ------------ BL2 total base v
- */
- unsigned long bl2_size;
-
- bl31_mem_layout->free_base = bl2_mem_layout->total_base;
-
- bl2_size = bl2_mem_layout->free_base - bl2_mem_layout->total_base;
- bl31_mem_layout->free_size = bl2_mem_layout->free_size + bl2_size;
- }
-
- bl31_mem_layout->total_base = bl2_mem_layout->total_base;
- bl31_mem_layout->total_size = bl2_mem_layout->total_size;
- bl31_mem_layout->attr = load_type;
-
- flush_dcache_range((unsigned long) bl31_mem_layout, sizeof(meminfo_t));
- return;
-}
-
-/*******************************************************************************
* Function that takes a memory layout into which BL2 has been either top or
* bottom loaded along with the address where BL2 has been loaded in it. Using
* this information, it populates bl2_mem_layout to tell BL2 how much memory
@@ -294,12 +173,15 @@ unsigned long image_size(const char *image_name)
* Generic function to load an image into the trusted RAM,
* given a name, extents of free memory & whether the image should be loaded at
* the bottom or top of the free memory. It updates the memory layout if the
- * load is successful.
+ * load is successful. It also updates the image information and the entry point
+ * information in the params passed
******************************************************************************/
-unsigned long load_image(meminfo_t *mem_layout,
+int load_image(meminfo_t *mem_layout,
const char *image_name,
unsigned int load_type,
- unsigned long fixed_addr)
+ unsigned long fixed_addr,
+ image_info_t *image_data,
+ entry_point_info_t *entry_point_info)
{
uintptr_t dev_handle;
uintptr_t image_handle;
@@ -313,13 +195,14 @@ unsigned long load_image(meminfo_t *mem_layout,
assert(mem_layout != NULL);
assert(image_name != NULL);
+ assert(image_data->h.version >= VERSION_1);
/* Obtain a reference to the image by querying the platform layer */
io_result = plat_get_image_source(image_name, &dev_handle, &image_spec);
if (io_result != IO_SUCCESS) {
WARN("Failed to obtain reference to image '%s' (%i)\n",
image_name, io_result);
- return 0;
+ return io_result;
}
/* Attempt to access the image */
@@ -327,7 +210,7 @@ unsigned long load_image(meminfo_t *mem_layout,
if (io_result != IO_SUCCESS) {
WARN("Failed to access image '%s' (%i)\n",
image_name, io_result);
- return 0;
+ return io_result;
}
/* Find the size of the image */
@@ -335,7 +218,7 @@ unsigned long load_image(meminfo_t *mem_layout,
if ((io_result != IO_SUCCESS) || (image_size == 0)) {
WARN("Failed to determine the size of the image '%s' file (%i)\n",
image_name, io_result);
- goto fail;
+ goto exit;
}
/* See if we have enough space */
@@ -343,7 +226,7 @@ unsigned long load_image(meminfo_t *mem_layout,
WARN("Cannot load '%s' file: Not enough space.\n",
image_name);
dump_load_info(0, image_size, mem_layout);
- goto fail;
+ goto exit;
}
switch (load_type) {
@@ -362,7 +245,8 @@ unsigned long load_image(meminfo_t *mem_layout,
WARN("Cannot load '%s' file: Not enough space.\n",
image_name);
dump_load_info(image_base, image_size, mem_layout);
- goto fail;
+ io_result = -ENOMEM;
+ goto exit;
}
/* Calculate the amount of extra memory used due to alignment */
@@ -380,10 +264,11 @@ unsigned long load_image(meminfo_t *mem_layout,
/* Page align base address and check whether the image still fits */
if (image_base + image_size >
mem_layout->free_base + mem_layout->free_size) {
- WARN("Cannot load '%s' file: Not enough space.\n",
- image_name);
- dump_load_info(image_base, image_size, mem_layout);
- goto fail;
+ WARN("Cannot load '%s' file: Not enough space.\n",
+ image_name);
+ dump_load_info(image_base, image_size, mem_layout);
+ io_result = -ENOMEM;
+ goto exit;
}
/* Calculate the amount of extra memory used due to alignment */
@@ -448,14 +333,16 @@ unsigned long load_image(meminfo_t *mem_layout,
WARN("Cannot load '%s' file: Not enough space.\n",
image_name);
dump_load_info(image_base, image_size, mem_layout);
- goto fail;
+ io_result = -ENOMEM;
+ goto exit;
}
/* Check whether the fixed load address is page-aligned. */
if (!is_page_aligned(image_base)) {
WARN("Cannot load '%s' file at unaligned address 0x%lx\n",
image_name, fixed_addr);
- goto fail;
+ io_result = -ENOMEM;
+ goto exit;
}
/*
@@ -505,9 +392,14 @@ unsigned long load_image(meminfo_t *mem_layout,
io_result = io_read(image_handle, image_base, image_size, &bytes_read);
if ((io_result != IO_SUCCESS) || (bytes_read < image_size)) {
WARN("Failed to load '%s' file (%i)\n", image_name, io_result);
- goto fail;
+ goto exit;
}
+ image_data->image_base = image_base;
+ image_data->image_size = image_size;
+
+ entry_point_info->pc = image_base;
+
/*
* File has been successfully loaded. Update the free memory
* data structure & flush the contents of the TZRAM so that
@@ -523,54 +415,12 @@ unsigned long load_image(meminfo_t *mem_layout,
mem_layout->free_base += offset + image_size;
exit:
- io_result = io_close(image_handle);
+ io_close(image_handle);
/* Ignore improbable/unrecoverable error in 'close' */
/* TODO: Consider maintaining open device connection from this bootloader stage */
- io_result = io_dev_close(dev_handle);
+ io_dev_close(dev_handle);
/* Ignore improbable/unrecoverable error in 'dev_close' */
- return image_base;
-
-fail: image_base = 0;
- goto exit;
-}
-
-/*******************************************************************************
- * Run a loaded image from the given entry point. This could result in either
- * dropping into a lower exception level or jumping to a higher exception level.
- * The only way of doing the latter is through an SMC. In either case, setup the
- * parameters for the EL change request correctly.
- ******************************************************************************/
-void __dead2 run_image(unsigned long entrypoint,
- unsigned long spsr,
- unsigned long target_security_state,
- void *first_arg,
- void *second_arg)
-{
- el_change_info_t run_image_info;
-
- /* Tell next EL what we want done */
- run_image_info.args.arg0 = RUN_IMAGE;
- run_image_info.entrypoint = entrypoint;
- run_image_info.spsr = spsr;
- run_image_info.security_state = target_security_state;
-
- /*
- * If we are EL3 then only an eret can take us to the desired
- * exception level. Else for the time being assume that we have
- * to jump to a higher EL and issue an SMC. Contents of argY
- * will go into the general purpose register xY e.g. arg0->x0
- */
- if (IS_IN_EL3()) {
- run_image_info.args.arg1 = (unsigned long) first_arg;
- run_image_info.args.arg2 = (unsigned long) second_arg;
- } else {
- run_image_info.args.arg1 = entrypoint;
- run_image_info.args.arg2 = spsr;
- run_image_info.args.arg3 = (unsigned long) first_arg;
- run_image_info.args.arg4 = (unsigned long) second_arg;
- }
-
- change_el(&run_image_info);
+ return io_result;
}
diff --git a/include/bl2/bl2.h b/include/bl2/bl2.h
index 25b6f9c..4cd3cee 100644
--- a/include/bl2/bl2.h
+++ b/include/bl2/bl2.h
@@ -47,6 +47,27 @@ struct bl31_args;
*****************************************/
extern void bl2_platform_setup(void);
extern struct meminfo *bl2_plat_sec_mem_layout(void);
-extern struct bl31_args *bl2_get_bl31_args_ptr(void);
+
+/*******************************************************************************
+ * This function returns a pointer to the shared memory that the platform has
+ * kept aside to pass trusted firmware related information that BL3-1
+ * could need
+ ******************************************************************************/
+extern struct bl31_params *bl2_plat_get_bl31_params(void);
+
+
+/*******************************************************************************
+ * This function returns a pointer to the shared memory that the platform
+ * has kept to point to entry point information of BL31 to BL2
+ ******************************************************************************/
+extern struct entry_point_info *bl2_plat_get_bl31_ep_info(void);
+
+
+/************************************************************************
+ * This function flushes to main memory all the params that are
+ * passed to BL3-1
+ **************************************************************************/
+extern void bl2_plat_flush_bl31_params(void);
+
#endif /* __BL2_H__ */
diff --git a/include/bl31/bl31.h b/include/bl31/bl31.h
index b60e32c..e77c554 100644
--- a/include/bl31/bl31.h
+++ b/include/bl31/bl31.h
@@ -42,7 +42,8 @@ extern unsigned long bl31_entrypoint;
* Forward declarations
*****************************************/
struct meminfo;
-struct el_change_info;
+struct entry_point_info;
+struct bl31_parms;
/*******************************************************************************
* Function prototypes
@@ -52,10 +53,10 @@ extern void bl31_next_el_arch_setup(uint32_t security_state);
extern void bl31_set_next_image_type(uint32_t type);
extern uint32_t bl31_get_next_image_type(void);
extern void bl31_prepare_next_image_entry();
-extern struct el_change_info *bl31_get_next_image_info(uint32_t type);
+extern struct entry_point_info *bl31_get_next_image_info(uint32_t type);
+extern void bl31_early_platform_setup(struct bl31_params *from_bl2,
+ void *plat_params_from_bl2);
extern void bl31_platform_setup(void);
-extern struct meminfo *bl31_plat_get_bl32_mem_layout(void);
-extern struct meminfo *bl31_plat_sec_mem_layout(void);
-extern void bl31_register_bl32_init(int32_t (*)(struct meminfo *));
+extern void bl31_register_bl32_init(int32_t (*)(void));
#endif /* __BL31_H__ */
diff --git a/include/common/asm_macros.S b/include/common/asm_macros.S
index 3dbd9f2..2bccf58 100644
--- a/include/common/asm_macros.S
+++ b/include/common/asm_macros.S
@@ -88,6 +88,41 @@
\_name:
.endm
+ /* ---------------------------------------------
+ * Find the type of reset and jump to handler
+ * if present. If the handler is null then it is
+ * a cold boot. The primary cpu will set up the
+ * platform while the secondaries wait for
+ * their turn to be woken up
+ * ---------------------------------------------
+ */
+ .macro wait_for_entrypoint
+wait_for_entrypoint:
+ mrs x0, mpidr_el1
+ bl platform_get_entrypoint
+ cbnz x0, do_warm_boot
+ mrs x0, mpidr_el1
+ bl platform_is_primary_cpu
+ cbnz x0, do_cold_boot
+
+ /* ---------------------------------------------
+ * Perform any platform specific secondary cpu
+ * actions
+ * ---------------------------------------------
+ */
+ bl plat_secondary_cold_boot_setup
+ b wait_for_entrypoint
+
+ do_warm_boot:
+ /* ---------------------------------------------
+ * Jump to BL31 for all warm boot init.
+ * ---------------------------------------------
+ */
+ blr x0
+
+ do_cold_boot:
+ .endm
+
/*
* This macro declares an array of 1 or more stacks, properly
* aligned and in the requested section
diff --git a/include/common/bl_common.h b/include/common/bl_common.h
index 9fba9c0..47b1e40 100644
--- a/include/common/bl_common.h
+++ b/include/common/bl_common.h
@@ -31,8 +31,9 @@
#ifndef __BL_COMMON_H__
#define __BL_COMMON_H__
-#define SECURE 0
-#define NON_SECURE 1
+#define SECURE 0x0
+#define NON_SECURE 0x1
+#define PARAM_EP_SECURITY_MASK 0x1
#define UP 1
#define DOWN 0
@@ -56,10 +57,34 @@
*****************************************************************************/
#define RUN_IMAGE 0xC0000000
+/*******************************************************************************
+ * Constants that allow assembler code to access members of and the
+ * 'entry_point_info' structure at their correct offsets.
+ ******************************************************************************/
+#define ENTRY_POINT_INFO_PC_OFFSET 0x08
+#define ENTRY_POINT_INFO_ARGS_OFFSET 0x18
-#ifndef __ASSEMBLY__
+#define GET_SECURITY_STATE(x) (x & PARAM_EP_SECURITY_MASK)
+#define SET_SECURITY_STATE(x, security) \
+ ((x) = ((x) & ~PARAM_EP_SECURITY_MASK) | (security))
+
+#define PARAM_EP 0x01
+#define PARAM_IMAGE_BINARY 0x02
+#define PARAM_BL31 0x03
+
+#define VERSION_1 0x01
+
+#define SET_PARAM_HEAD(_p, _type, _ver, _attr) do { \
+ (_p)->h.type = (uint8_t)(_type); \
+ (_p)->h.version = (uint8_t)(_ver); \
+ (_p)->h.size = (uint16_t)sizeof(*_p); \
+ (_p)->h.attr = (uint32_t)(_attr) ; \
+ } while (0)
+#ifndef __ASSEMBLY__
#include <cdefs.h> /* For __dead2 */
+#include <cassert.h>
+#include <stdint.h>
/*******************************************************************************
* Structure used for telling the next BL how much of a particular type of
@@ -85,40 +110,92 @@ typedef struct aapcs64_params {
unsigned long arg7;
} aapcs64_params_t;
-/*******************************************************************************
- * This structure represents the superset of information needed while switching
- * exception levels. The only two mechanisms to do so are ERET & SMC. In case of
- * SMC all members apart from 'aapcs64_params' will be ignored.
- ******************************************************************************/
-typedef struct el_change_info {
- unsigned long entrypoint;
- unsigned long spsr;
- unsigned long security_state;
+/***************************************************************************
+ * This structure provides version information and the size of the
+ * structure, attributes for the structure it represents
+ ***************************************************************************/
+typedef struct param_header {
+ uint8_t type; /* type of the structure */
+ uint8_t version; /* version of this structure */
+ uint16_t size; /* size of this structure in bytes */
+ uint32_t attr; /* attributes: unused bits SBZ */
+} param_header_t;
+
+/*****************************************************************************
+ * This structure represents the superset of information needed while
+ * switching exception levels. The only two mechanisms to do so are
+ * ERET & SMC. Security state is indicated using bit zero of header
+ * attribute
+ * NOTE: BL1 expects entrypoint followed by spsr while processing
+ * SMC to jump to BL31 from the start of entry_point_info
+ *****************************************************************************/
+typedef struct entry_point_info {
+ param_header_t h;
+ uintptr_t pc;
+ uint32_t spsr;
aapcs64_params_t args;
-} el_change_info_t;
+} entry_point_info_t;
+
+/*****************************************************************************
+ * Image info binary provides information from the image loader that
+ * can be used by the firmware to manage available trusted RAM.
+ * More advanced firmware image formats can provide additional
+ * information that enables optimization or greater flexibility in the
+ * common firmware code
+ *****************************************************************************/
+typedef struct image_info {
+ param_header_t h;
+ uintptr_t image_base; /* physical address of base of image */
+ uint32_t image_size; /* bytes read from image file */
+} image_info_t;
/*******************************************************************************
* This structure represents the superset of information that can be passed to
* BL31 e.g. while passing control to it from BL2. The BL32 parameters will be
- * populated only if BL2 detects its presence.
+ * populated only if BL2 detects its presence. A pointer to a structure of this
+ * type should be passed in X3 to BL31's cold boot entrypoint
+ *
+ * Use of this structure and the X3 parameter is not mandatory: the BL3-1
+ * platform code can use other mechanisms to provide the necessary information
+ * about BL3-2 and BL3-3 to the common and SPD code.
+ *
+ * BL3-1 image information is mandatory if this structure is used. If either of
+ * the optional BL3-2 and BL3-3 image information is not provided, this is
+ * indicated by the respective image_info pointers being zero.
******************************************************************************/
-typedef struct bl31_args {
- meminfo_t bl31_meminfo;
- el_change_info_t bl32_image_info;
- meminfo_t bl32_meminfo;
- el_change_info_t bl33_image_info;
- meminfo_t bl33_meminfo;
-} bl31_args_t;
+typedef struct bl31_params {
+ param_header_t h;
+ image_info_t *bl31_image_info;
+ entry_point_info_t *bl32_ep_info;
+ image_info_t *bl32_image_info;
+ entry_point_info_t *bl33_ep_info;
+ image_info_t *bl33_image_info;
+} bl31_params_t;
+
+
+/*
+ * Compile time assertions related to the 'entry_point_info' structure to
+ * ensure that the assembler and the compiler view of the offsets of
+ * the structure members is the same.
+ */
+CASSERT(ENTRY_POINT_INFO_PC_OFFSET ==
+ __builtin_offsetof(entry_point_info_t, pc), \
+ assert_BL31_pc_offset_mismatch);
+
+CASSERT(ENTRY_POINT_INFO_ARGS_OFFSET == \
+ __builtin_offsetof(entry_point_info_t, args), \
+ assert_BL31_args_offset_mismatch);
+
+CASSERT(sizeof(unsigned long) ==
+ __builtin_offsetof(entry_point_info_t, spsr) - \
+ __builtin_offsetof(entry_point_info_t, pc), \
+ assert_entrypoint_and_spsr_should_be_adjacent);
/*******************************************************************************
* Function & variable prototypes
******************************************************************************/
extern unsigned long page_align(unsigned long, unsigned);
extern void change_security_state(unsigned int);
-extern void __dead2 drop_el(aapcs64_params_t *, unsigned long, unsigned long);
-extern void __dead2 raise_el(aapcs64_params_t *);
-extern void __dead2 change_el(el_change_info_t *);
-extern unsigned long make_spsr(unsigned long, unsigned long, unsigned long);
extern void init_bl2_mem_layout(meminfo_t *,
meminfo_t *,
unsigned int,
@@ -127,15 +204,12 @@ extern void init_bl31_mem_layout(const meminfo_t *,
meminfo_t *,
unsigned int) __attribute__((weak));
extern unsigned long image_size(const char *);
-extern unsigned long load_image(meminfo_t *,
+extern int load_image(meminfo_t *,
const char *,
unsigned int,
- unsigned long);
-extern void __dead2 run_image(unsigned long entrypoint,
- unsigned long spsr,
- unsigned long security_state,
- void *first_arg,
- void *second_arg);
+ unsigned long,
+ image_info_t *,
+ entry_point_info_t *);
extern unsigned long *get_el_change_mem_ptr(void);
extern const char build_message[];
diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index d7e65b3..1c11af3 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -175,7 +175,25 @@
#define DAIF_IRQ_BIT (1 << 1)
#define DAIF_ABT_BIT (1 << 2)
#define DAIF_DBG_BIT (1 << 3)
-#define PSR_DAIF_SHIFT 0x6
+#define SPSR_DAIF_SHIFT 6
+#define SPSR_DAIF_MASK 0xf
+
+#define SPSR_AIF_SHIFT 6
+#define SPSR_AIF_MASK 0x7
+
+#define SPSR_E_SHIFT 9
+#define SPSR_E_MASK 0x1
+#define SPSR_E_LITTLE 0x0
+#define SPSR_E_BIG 0x1
+
+#define SPSR_T_SHIFT 5
+#define SPSR_T_MASK 0x1
+#define SPSR_T_ARM 0x0
+#define SPSR_T_THUMB 0x1
+
+#define DISABLE_ALL_EXCEPTIONS \
+ (DAIF_FIQ_BIT | DAIF_IRQ_BIT | DAIF_ABT_BIT | DAIF_DBG_BIT)
+
/*
* TCR defintions
@@ -198,29 +216,53 @@
#define TCR_SH_OUTER_SHAREABLE (0x2 << 12)
#define TCR_SH_INNER_SHAREABLE (0x3 << 12)
-#define MODE_RW_64 0x0
-#define MODE_RW_32 0x1
+#define MODE_SP_SHIFT 0x0
+#define MODE_SP_MASK 0x1
#define MODE_SP_EL0 0x0
#define MODE_SP_ELX 0x1
+
+#define MODE_RW_SHIFT 0x4
+#define MODE_RW_MASK 0x1
+#define MODE_RW_64 0x0
+#define MODE_RW_32 0x1
+
+#define MODE_EL_SHIFT 0x2
+#define MODE_EL_MASK 0x3
#define MODE_EL3 0x3
#define MODE_EL2 0x2
#define MODE_EL1 0x1
#define MODE_EL0 0x0
-#define MODE_RW_SHIFT 0x4
-#define MODE_EL_SHIFT 0x2
-#define MODE_SP_SHIFT 0x0
-
-#define GET_RW(mode) ((mode >> MODE_RW_SHIFT) & 0x1)
-#define GET_EL(mode) ((mode >> MODE_EL_SHIFT) & 0x3)
-#define PSR_MODE(rw, el, sp) (rw << MODE_RW_SHIFT | el << MODE_EL_SHIFT \
- | sp << MODE_SP_SHIFT)
-
-#define SPSR32_EE_BIT (1 << 9)
-#define SPSR32_T_BIT (1 << 5)
+#define MODE32_SHIFT 0
+#define MODE32_MASK 0xf
+#define MODE32_usr 0x0
+#define MODE32_fiq 0x1
+#define MODE32_irq 0x2
+#define MODE32_svc 0x3
+#define MODE32_mon 0x6
+#define MODE32_abt 0x7
+#define MODE32_hyp 0xa
+#define MODE32_und 0xb
+#define MODE32_sys 0xf
+
+#define GET_RW(mode) (((mode) >> MODE_RW_SHIFT) & MODE_RW_MASK)
+#define GET_EL(mode) (((mode) >> MODE_EL_SHIFT) & MODE_EL_MASK)
+#define GET_SP(mode) (((mode) >> MODE_SP_SHIFT) & MODE_SP_MASK)
+#define GET_M32(mode) (((mode) >> MODE32_SHIFT) & MODE32_MASK)
+
+#define SPSR_64(el, sp, daif) \
+ (MODE_RW_64 << MODE_RW_SHIFT | \
+ ((el) & MODE_EL_MASK) << MODE_EL_SHIFT | \
+ ((sp) & MODE_SP_MASK) << MODE_SP_SHIFT | \
+ ((daif) & SPSR_DAIF_MASK) << SPSR_DAIF_SHIFT)
+
+#define SPSR_MODE32(mode, isa, endian, aif) \
+ (MODE_RW_32 << MODE_RW_SHIFT | \
+ ((mode) & MODE32_MASK) << MODE32_SHIFT | \
+ ((isa) & SPSR_T_MASK) << SPSR_T_SHIFT | \
+ ((endian) & SPSR_E_MASK) << SPSR_E_SHIFT | \
+ ((aif) & SPSR_AIF_MASK) << SPSR_AIF_SHIFT)
-#define AARCH32_MODE_SVC 0x13
-#define AARCH32_MODE_HYP 0x1a
/* Miscellaneous MMU related constants */
#define NUM_2MB_IN_GB (1 << 9)
diff --git a/plat/fvp/aarch64/bl1_plat_helpers.S b/plat/fvp/aarch64/bl1_plat_helpers.S
deleted file mode 100644
index b4d4458..0000000
--- a/plat/fvp/aarch64/bl1_plat_helpers.S
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * Neither the name of ARM nor the names of its contributors may be used
- * to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <arch.h>
-#include <asm_macros.S>
-#include <gic_v2.h>
-#include <platform.h>
-#include "../drivers/pwrc/fvp_pwrc.h"
-
- .globl platform_get_entrypoint
- .globl platform_cold_boot_init
- .globl plat_secondary_cold_boot_setup
-
-
- .macro platform_choose_gicmmap param1, param2, x_tmp, w_tmp, res
- ldr \x_tmp, =VE_SYSREGS_BASE + V2M_SYS_ID
- ldr \w_tmp, [\x_tmp]
- ubfx \w_tmp, \w_tmp, #SYS_ID_BLD_SHIFT, #SYS_ID_BLD_LENGTH
- cmp \w_tmp, #BLD_GIC_VE_MMAP
- csel \res, \param1, \param2, eq
- .endm
-
- /* -----------------------------------------------------
- * void plat_secondary_cold_boot_setup (void);
- *
- * This function performs any platform specific actions
- * needed for a secondary cpu after a cold reset e.g
- * mark the cpu's presence, mechanism to place it in a
- * holding pen etc.
- * TODO: Should we read the PSYS register to make sure
- * that the request has gone through.
- * -----------------------------------------------------
- */
-func plat_secondary_cold_boot_setup
- /* ---------------------------------------------
- * Power down this cpu.
- * TODO: Do we need to worry about powering the
- * cluster down as well here. That will need
- * locks which we won't have unless an elf-
- * loader zeroes out the zi section.
- * ---------------------------------------------
- */
- mrs x0, mpidr_el1
- ldr x1, =PWRC_BASE
- str w0, [x1, #PPOFFR_OFF]
-
- /* ---------------------------------------------
- * Deactivate the gic cpu interface as well
- * ---------------------------------------------
- */
- ldr x0, =VE_GICC_BASE
- ldr x1, =BASE_GICC_BASE
- platform_choose_gicmmap x0, x1, x2, w2, x1
- mov w0, #(IRQ_BYP_DIS_GRP1 | FIQ_BYP_DIS_GRP1)
- orr w0, w0, #(IRQ_BYP_DIS_GRP0 | FIQ_BYP_DIS_GRP0)
- str w0, [x1, #GICC_CTLR]
-
- /* ---------------------------------------------
- * There is no sane reason to come out of this
- * wfi so panic if we do. This cpu will be pow-
- * ered on and reset by the cpu_on pm api
- * ---------------------------------------------
- */
- dsb sy
- wfi
-cb_panic:
- b cb_panic
-
-
- /* -----------------------------------------------------
- * void platform_get_entrypoint (unsigned int mpid);
- *
- * Main job of this routine is to distinguish between
- * a cold and warm boot.
- * On a cold boot the secondaries first wait for the
- * platform to be initialized after which they are
- * hotplugged in. The primary proceeds to perform the
- * platform initialization.
- * On a warm boot, each cpu jumps to the address in its
- * mailbox.
- *
- * TODO: Not a good idea to save lr in a temp reg
- * TODO: PSYSR is a common register and should be
- * accessed using locks. Since its not possible
- * to use locks immediately after a cold reset
- * we are relying on the fact that after a cold
- * reset all cpus will read the same WK field
- * -----------------------------------------------------
- */
-func platform_get_entrypoint
- mov x9, x30 // lr
- mov x2, x0
- ldr x1, =PWRC_BASE
- str w2, [x1, #PSYSR_OFF]
- ldr w2, [x1, #PSYSR_OFF]
- ubfx w2, w2, #PSYSR_WK_SHIFT, #PSYSR_WK_MASK
- cbnz w2, warm_reset
- mov x0, x2
- b exit
-warm_reset:
- /* ---------------------------------------------
- * A per-cpu mailbox is maintained in the tru-
- * sted DRAM. Its flushed out of the caches
- * after every update using normal memory so
- * its safe to read it here with SO attributes
- * ---------------------------------------------
- */
- ldr x10, =TZDRAM_BASE + MBOX_OFF
- bl platform_get_core_pos
- lsl x0, x0, #CACHE_WRITEBACK_SHIFT
- ldr x0, [x10, x0]
- cbz x0, _panic
-exit:
- ret x9
-_panic: b _panic
-
-
- /* -----------------------------------------------------
- * void platform_mem_init (void);
- *
- * Zero out the mailbox registers in the TZDRAM. The
- * mmu is turned off right now and only the primary can
- * ever execute this code. Secondaries will read the
- * mailboxes using SO accesses. In short, BL31 will
- * update the mailboxes after mapping the tzdram as
- * normal memory. It will flush its copy after update.
- * BL1 will always read the mailboxes with the MMU off
- * -----------------------------------------------------
- */
-func platform_mem_init
- ldr x0, =TZDRAM_BASE + MBOX_OFF
- stp xzr, xzr, [x0, #0]
- stp xzr, xzr, [x0, #0x10]
- stp xzr, xzr, [x0, #0x20]
- stp xzr, xzr, [x0, #0x30]
- ret
-
-
- /* -----------------------------------------------------
- * void platform_cold_boot_init (bl1_main function);
- *
- * Routine called only by the primary cpu after a cold
- * boot to perform early platform initialization
- * -----------------------------------------------------
- */
-func platform_cold_boot_init
- mov x20, x0
- bl platform_mem_init
-
- /* ---------------------------------------------
- * Give ourselves a small coherent stack to
- * ease the pain of initializing the MMU and
- * CCI in assembler
- * ---------------------------------------------
- */
- mrs x0, mpidr_el1
- bl platform_set_coherent_stack
-
- /* ---------------------------------------------
- * Architectural init. can be generic e.g.
- * enabling stack alignment and platform spec-
- * ific e.g. MMU & page table setup as per the
- * platform memory map. Perform the latter here
- * and the former in bl1_main.
- * ---------------------------------------------
- */
- bl bl1_early_platform_setup
- bl bl1_plat_arch_setup
-
- /* ---------------------------------------------
- * Give ourselves a stack allocated in Normal
- * -IS-WBWA memory
- * ---------------------------------------------
- */
- mrs x0, mpidr_el1
- bl platform_set_stack
-
- /* ---------------------------------------------
- * Jump to the main function. Returning from it
- * is a terminal error.
- * ---------------------------------------------
- */
- blr x20
-
-cb_init_panic:
- b cb_init_panic
diff --git a/plat/fvp/aarch64/plat_common.c b/plat/fvp/aarch64/plat_common.c
index 099751d..29bf602 100644
--- a/plat/fvp/aarch64/plat_common.c
+++ b/plat/fvp/aarch64/plat_common.c
@@ -32,6 +32,7 @@
#include <arch_helpers.h>
#include <assert.h>
#include <bl_common.h>
+#include <cci400.h>
#include <debug.h>
#include <mmio.h>
#include <platform.h>
@@ -130,14 +131,15 @@ const mmap_region_t fvp_mmap[] = {
* the platform memory map & initialize the mmu, for the given exception level
******************************************************************************/
#define DEFINE_CONFIGURE_MMU_EL(_el) \
- void configure_mmu_el##_el(meminfo_t *mem_layout, \
+ void configure_mmu_el##_el(unsigned long total_base, \
+ unsigned long total_size, \
unsigned long ro_start, \
unsigned long ro_limit, \
unsigned long coh_start, \
unsigned long coh_limit) \
{ \
- mmap_add_region(mem_layout->total_base, \
- mem_layout->total_size, \
+ mmap_add_region(total_base, \
+ total_size, \
MT_MEMORY | MT_RW | MT_SECURE); \
mmap_add_region(ro_start, ro_limit - ro_start, \
MT_MEMORY | MT_RO | MT_SECURE); \
@@ -251,3 +253,57 @@ uint64_t plat_get_syscnt_freq(void)
return counter_base_frequency;
}
+
+void fvp_cci_setup(void)
+{
+ unsigned long cci_setup;
+
+ /*
+ * Enable CCI-400 for this cluster. No need
+ * for locks as no other cpu is active at the
+ * moment
+ */
+ cci_setup = platform_get_cfgvar(CONFIG_HAS_CCI);
+ if (cci_setup)
+ cci_enable_coherency(read_mpidr());
+}
+
+
+/*******************************************************************************
+ * Set SPSR and secure state for BL32 image
+ ******************************************************************************/
+void fvp_set_bl32_ep_info(entry_point_info_t *bl32_ep_info)
+{
+ SET_SECURITY_STATE(bl32_ep_info->h.attr, SECURE);
+ /*
+ * The Secure Payload Dispatcher service is responsible for
+ * setting the SPSR prior to entry into the BL32 image.
+ */
+ bl32_ep_info->spsr = 0;
+}
+
+/*******************************************************************************
+ * Set SPSR and secure state for BL33 image
+ ******************************************************************************/
+void fvp_set_bl33_ep_info(entry_point_info_t *bl33_ep_info)
+{
+ unsigned long el_status;
+ unsigned int mode;
+
+ /* Figure out what mode we enter the non-secure world in */
+ el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
+ el_status &= ID_AA64PFR0_ELX_MASK;
+
+ if (el_status)
+ mode = MODE_EL2;
+ else
+ mode = MODE_EL1;
+
+ /*
+ * TODO: Consider the possibility of specifying the SPSR in
+ * the FIP ToC and allowing the platform to have a say as
+ * well.
+ */
+ bl33_ep_info->spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+ SET_SECURITY_STATE(bl33_ep_info->h.attr, NON_SECURE);
+}
diff --git a/plat/fvp/aarch64/plat_helpers.S b/plat/fvp/aarch64/plat_helpers.S
index 0057903..f1c2c09 100644
--- a/plat/fvp/aarch64/plat_helpers.S
+++ b/plat/fvp/aarch64/plat_helpers.S
@@ -31,10 +31,139 @@
#include <arch.h>
#include <asm_macros.S>
#include <bl_common.h>
+#include <gic_v2.h>
#include <platform.h>
+#include "../drivers/pwrc/fvp_pwrc.h"
+ .globl platform_get_entrypoint
+ .globl plat_secondary_cold_boot_setup
+ .globl platform_mem_init
.globl plat_report_exception
+ .macro platform_choose_gicmmap param1, param2, x_tmp, w_tmp, res
+ ldr \x_tmp, =VE_SYSREGS_BASE + V2M_SYS_ID
+ ldr \w_tmp, [\x_tmp]
+ ubfx \w_tmp, \w_tmp, #SYS_ID_BLD_SHIFT, #SYS_ID_BLD_LENGTH
+ cmp \w_tmp, #BLD_GIC_VE_MMAP
+ csel \res, \param1, \param2, eq
+ .endm
+
+ /* -----------------------------------------------------
+ * void plat_secondary_cold_boot_setup (void);
+ *
+ * This function performs any platform specific actions
+ * needed for a secondary cpu after a cold reset e.g
+ * mark the cpu's presence, mechanism to place it in a
+ * holding pen etc.
+ * TODO: Should we read the PSYS register to make sure
+ * that the request has gone through.
+ * -----------------------------------------------------
+ */
+func plat_secondary_cold_boot_setup
+ /* ---------------------------------------------
+ * Power down this cpu.
+ * TODO: Do we need to worry about powering the
+ * cluster down as well here. That will need
+ * locks which we won't have unless an elf-
+ * loader zeroes out the zi section.
+ * ---------------------------------------------
+ */
+ mrs x0, mpidr_el1
+ ldr x1, =PWRC_BASE
+ str w0, [x1, #PPOFFR_OFF]
+
+ /* ---------------------------------------------
+ * Deactivate the gic cpu interface as well
+ * ---------------------------------------------
+ */
+ ldr x0, =VE_GICC_BASE
+ ldr x1, =BASE_GICC_BASE
+ platform_choose_gicmmap x0, x1, x2, w2, x1
+ mov w0, #(IRQ_BYP_DIS_GRP1 | FIQ_BYP_DIS_GRP1)
+ orr w0, w0, #(IRQ_BYP_DIS_GRP0 | FIQ_BYP_DIS_GRP0)
+ str w0, [x1, #GICC_CTLR]
+
+ /* ---------------------------------------------
+ * There is no sane reason to come out of this
+ * wfi so panic if we do. This cpu will be pow-
+ * ered on and reset by the cpu_on pm api
+ * ---------------------------------------------
+ */
+ dsb sy
+ wfi
+cb_panic:
+ b cb_panic
+
+
+ /* -----------------------------------------------------
+ * void platform_get_entrypoint (unsigned int mpid);
+ *
+ * Main job of this routine is to distinguish between
+ * a cold and warm boot.
+ * On a cold boot the secondaries first wait for the
+ * platform to be initialized after which they are
+ * hotplugged in. The primary proceeds to perform the
+ * platform initialization.
+ * On a warm boot, each cpu jumps to the address in its
+ * mailbox.
+ *
+ * TODO: Not a good idea to save lr in a temp reg
+ * TODO: PSYSR is a common register and should be
+ * accessed using locks. Since its not possible
+ * to use locks immediately after a cold reset
+ * we are relying on the fact that after a cold
+ * reset all cpus will read the same WK field
+ * -----------------------------------------------------
+ */
+func platform_get_entrypoint
+ mov x9, x30 // lr
+ mov x2, x0
+ ldr x1, =PWRC_BASE
+ str w2, [x1, #PSYSR_OFF]
+ ldr w2, [x1, #PSYSR_OFF]
+ ubfx w2, w2, #PSYSR_WK_SHIFT, #PSYSR_WK_MASK
+ cbnz w2, warm_reset
+ mov x0, x2
+ b exit
+warm_reset:
+ /* ---------------------------------------------
+ * A per-cpu mailbox is maintained in the tru-
+ * sted DRAM. Its flushed out of the caches
+ * after every update using normal memory so
+ * its safe to read it here with SO attributes
+ * ---------------------------------------------
+ */
+ ldr x10, =TZDRAM_BASE + MBOX_OFF
+ bl platform_get_core_pos
+ lsl x0, x0, #CACHE_WRITEBACK_SHIFT
+ ldr x0, [x10, x0]
+ cbz x0, _panic
+exit:
+ ret x9
+_panic: b _panic
+
+
+ /* -----------------------------------------------------
+ * void platform_mem_init (void);
+ *
+ * Zero out the mailbox registers in the TZDRAM. The
+ * mmu is turned off right now and only the primary can
+ * ever execute this code. Secondaries will read the
+ * mailboxes using SO accesses. In short, BL31 will
+ * update the mailboxes after mapping the tzdram as
+ * normal memory. It will flush its copy after update.
+ * BL1 will always read the mailboxes with the MMU off
+ * -----------------------------------------------------
+ */
+func platform_mem_init
+ ldr x0, =TZDRAM_BASE + MBOX_OFF
+ mov w1, #PLATFORM_CORE_COUNT
+loop:
+ str xzr, [x0], #CACHE_WRITEBACK_GRANULE
+ subs w1, w1, #1
+ b.gt loop
+ ret
+
/* ---------------------------------------------
* void plat_report_exception(unsigned int type)
* Function to report an unhandled exception
diff --git a/plat/fvp/bl1_plat_setup.c b/plat/fvp/bl1_plat_setup.c
index edd3f7b..45eb754 100644
--- a/plat/fvp/bl1_plat_setup.c
+++ b/plat/fvp/bl1_plat_setup.c
@@ -33,7 +33,6 @@
#include <bl_common.h>
#include <bl1.h>
#include <console.h>
-#include <cci400.h>
#include <mmio.h>
#include <platform.h>
@@ -126,21 +125,26 @@ void bl1_platform_setup(void)
******************************************************************************/
void bl1_plat_arch_setup(void)
{
- unsigned long cci_setup;
+ fvp_cci_setup();
- /*
- * Enable CCI-400 for this cluster. No need
- * for locks as no other cpu is active at the
- * moment
- */
- cci_setup = platform_get_cfgvar(CONFIG_HAS_CCI);
- if (cci_setup) {
- cci_enable_coherency(read_mpidr());
- }
-
- configure_mmu_el3(&bl1_tzram_layout,
+ configure_mmu_el3(bl1_tzram_layout.total_base,
+ bl1_tzram_layout.total_size,
TZROM_BASE,
TZROM_BASE + TZROM_SIZE,
BL1_COHERENT_RAM_BASE,
BL1_COHERENT_RAM_LIMIT);
}
+
+
+/*******************************************************************************
+ * Before calling this function BL2 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL2 and set SPSR and security state.
+ * On FVP we are only setting the security state, entrypoint
+ ******************************************************************************/
+void bl1_plat_set_bl2_ep_info(image_info_t *bl2_image,
+ entry_point_info_t *bl2_ep)
+{
+ SET_SECURITY_STATE(bl2_ep->h.attr, SECURE);
+ bl2_ep->spsr = SPSR_64(MODE_EL1, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+}
diff --git a/plat/fvp/bl2_plat_setup.c b/plat/fvp/bl2_plat_setup.c
index 80bb52e..ea9d0a4 100644
--- a/plat/fvp/bl2_plat_setup.c
+++ b/plat/fvp/bl2_plat_setup.c
@@ -34,6 +34,7 @@
#include <bl2.h>
#include <console.h>
#include <platform.h>
+#include <string.h>
/*******************************************************************************
* Declarations of linker defined symbols which will help us find the layout
@@ -73,10 +74,11 @@ __attribute__ ((aligned(PLATFORM_CACHE_LINE_SIZE),
section("tzfw_coherent_mem")));
/*******************************************************************************
- * Reference to structure which holds the arguments which need to be passed
+ * Reference to structures which holds the arguments which need to be passed
* to BL31
******************************************************************************/
-static bl31_args_t *bl2_to_bl31_args;
+static bl31_params_t *bl2_to_bl31_params;
+static entry_point_info_t *bl31_ep_info;
meminfo_t *bl2_plat_sec_mem_layout(void)
{
@@ -84,21 +86,82 @@ meminfo_t *bl2_plat_sec_mem_layout(void)
}
/*******************************************************************************
- * This function returns a pointer to the memory that the platform has kept
- * aside to pass all the information that BL31 could need.
+ * This function assigns a pointer to the memory that the platform has kept
+ * aside to pass platform specific and trusted firmware related information
+ * to BL31. This memory is allocated by allocating memory to
+ * bl2_to_bl31_params_mem_t structure which is a superset of all the
+ * structure whose information is passed to BL31
+ * NOTE: This function should be called only once and should be done
+ * before generating params to BL31
******************************************************************************/
-bl31_args_t *bl2_get_bl31_args_ptr(void)
+bl31_params_t *bl2_plat_get_bl31_params(void)
{
- return bl2_to_bl31_args;
+ bl2_to_bl31_params_mem_t *bl31_params_mem;
+
+ /*
+ * Ensure that the secure DRAM memory used for passing BL31 arguments
+ * does not overlap with the BL32_BASE.
+ */
+ assert(BL32_BASE > PARAMS_BASE + sizeof(bl2_to_bl31_params_mem_t));
+
+ /*
+ * Allocate the memory for all the arguments that needs to
+ * be passed to BL31
+ */
+ bl31_params_mem = (bl2_to_bl31_params_mem_t *)PARAMS_BASE;
+ memset((void *)PARAMS_BASE, 0, sizeof(bl2_to_bl31_params_mem_t));
+
+ /* Assign memory for TF related information */
+ bl2_to_bl31_params = &bl31_params_mem->bl31_params;
+ SET_PARAM_HEAD(bl2_to_bl31_params, PARAM_BL31, VERSION_1, 0);
+
+ /* Fill BL31 related information */
+ bl31_ep_info = &bl31_params_mem->bl31_ep_info;
+ bl2_to_bl31_params->bl31_image_info = &bl31_params_mem->bl31_image_info;
+ SET_PARAM_HEAD(bl2_to_bl31_params->bl31_image_info, PARAM_IMAGE_BINARY,
+ VERSION_1, 0);
+
+ /* Fill BL32 related information if it exists */
+ if (BL32_BASE) {
+ bl2_to_bl31_params->bl32_ep_info =
+ &bl31_params_mem->bl32_ep_info;
+ SET_PARAM_HEAD(bl2_to_bl31_params->bl32_ep_info,
+ PARAM_EP, VERSION_1, 0);
+ bl2_to_bl31_params->bl32_image_info =
+ &bl31_params_mem->bl32_image_info;
+ SET_PARAM_HEAD(bl2_to_bl31_params->bl32_image_info,
+ PARAM_IMAGE_BINARY,
+ VERSION_1, 0);
+ }
+
+ /* Fill BL33 related information */
+ bl2_to_bl31_params->bl33_ep_info = &bl31_params_mem->bl33_ep_info;
+ SET_PARAM_HEAD(bl2_to_bl31_params->bl33_ep_info,
+ PARAM_EP, VERSION_1, 0);
+ bl2_to_bl31_params->bl33_image_info = &bl31_params_mem->bl33_image_info;
+ SET_PARAM_HEAD(bl2_to_bl31_params->bl33_image_info, PARAM_IMAGE_BINARY,
+ VERSION_1, 0);
+
+ return bl2_to_bl31_params;
}
+
+/*******************************************************************************
+ * This function returns a pointer to the shared memory that the platform
+ * has kept to point to entry point information of BL31 to BL2
+ ******************************************************************************/
+struct entry_point_info *bl2_plat_get_bl31_ep_info(void)
+{
+ return bl31_ep_info;
+}
+
+
/*******************************************************************************
* BL1 has passed the extents of the trusted SRAM that should be visible to BL2
* in x0. This memory layout is sitting at the base of the free trusted SRAM.
* Copy it to a safe loaction before its reclaimed by later BL2 functionality.
******************************************************************************/
-void bl2_early_platform_setup(meminfo_t *mem_layout,
- void *data)
+void bl2_early_platform_setup(meminfo_t *mem_layout)
{
/* Initialize the console to provide early debug support */
console_init(PL011_UART0_BASE);
@@ -119,7 +182,7 @@ void bl2_early_platform_setup(meminfo_t *mem_layout,
* Perform platform specific setup. For now just initialize the memory location
* to use for passing arguments to BL31.
******************************************************************************/
-void bl2_platform_setup()
+void bl2_platform_setup(void)
{
/*
* Do initial security configuration to allow DRAM/device access. On
@@ -131,50 +194,100 @@ void bl2_platform_setup()
/* Initialise the IO layer and register platform IO devices */
io_setup();
+}
- /*
- * Ensure that the secure DRAM memory used for passing BL31 arguments
- * does not overlap with the BL32_BASE.
- */
- assert (BL32_BASE > TZDRAM_BASE + sizeof(bl31_args_t));
-
- /* Use the Trusted DRAM for passing args to BL31 */
- bl2_to_bl31_args = (bl31_args_t *) TZDRAM_BASE;
-
- /* Populate the extents of memory available for loading BL33 */
- bl2_to_bl31_args->bl33_meminfo.total_base = DRAM_BASE;
- bl2_to_bl31_args->bl33_meminfo.total_size = DRAM_SIZE;
- bl2_to_bl31_args->bl33_meminfo.free_base = DRAM_BASE;
- bl2_to_bl31_args->bl33_meminfo.free_size = DRAM_SIZE;
- bl2_to_bl31_args->bl33_meminfo.attr = 0;
- bl2_to_bl31_args->bl33_meminfo.next = 0;
-
- /*
- * Populate the extents of memory available for loading BL32.
- * TODO: We are temporarily executing BL2 from TZDRAM; will eventually
- * move to Trusted SRAM
- */
- bl2_to_bl31_args->bl32_meminfo.total_base = BL32_BASE;
- bl2_to_bl31_args->bl32_meminfo.free_base = BL32_BASE;
-
- bl2_to_bl31_args->bl32_meminfo.total_size =
- (TZDRAM_BASE + TZDRAM_SIZE) - BL32_BASE;
- bl2_to_bl31_args->bl32_meminfo.free_size =
- (TZDRAM_BASE + TZDRAM_SIZE) - BL32_BASE;
-
- bl2_to_bl31_args->bl32_meminfo.attr = BOT_LOAD;
- bl2_to_bl31_args->bl32_meminfo.next = 0;
+/* Flush the TF params and the TF plat params */
+void bl2_plat_flush_bl31_params(void)
+{
+ flush_dcache_range((unsigned long)PARAMS_BASE, \
+ sizeof(bl2_to_bl31_params_mem_t));
}
+
/*******************************************************************************
* Perform the very early platform specific architectural setup here. At the
* moment this is only intializes the mmu in a quick and dirty way.
******************************************************************************/
void bl2_plat_arch_setup()
{
- configure_mmu_el1(&bl2_tzram_layout,
+ configure_mmu_el1(bl2_tzram_layout.total_base,
+ bl2_tzram_layout.total_size,
BL2_RO_BASE,
BL2_RO_LIMIT,
BL2_COHERENT_RAM_BASE,
BL2_COHERENT_RAM_LIMIT);
}
+
+/*******************************************************************************
+ * Before calling this function BL31 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL31 and set SPSR and security state.
+ * On FVP we are only setting the security state, entrypoint
+ ******************************************************************************/
+void bl2_plat_set_bl31_ep_info(image_info_t *bl31_image_info,
+ entry_point_info_t *bl31_ep_info)
+{
+ SET_SECURITY_STATE(bl31_ep_info->h.attr, SECURE);
+ bl31_ep_info->spsr = SPSR_64(MODE_EL3, MODE_SP_ELX,
+ DISABLE_ALL_EXCEPTIONS);
+}
+
+
+/*******************************************************************************
+ * Before calling this function BL32 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL32 and set SPSR and security state.
+ * On FVP we are only setting the security state, entrypoint
+ ******************************************************************************/
+void bl2_plat_set_bl32_ep_info(image_info_t *bl32_image_info,
+ entry_point_info_t *bl32_ep_info)
+{
+ fvp_set_bl32_ep_info(bl32_ep_info);
+}
+
+/*******************************************************************************
+ * Before calling this function BL33 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL33 and set SPSR and security state.
+ * On FVP we are only setting the security state, entrypoint
+ ******************************************************************************/
+void bl2_plat_set_bl33_ep_info(image_info_t *image,
+ entry_point_info_t *bl33_ep_info)
+{
+ fvp_set_bl33_ep_info(bl33_ep_info);
+}
+
+
+/*******************************************************************************
+ * Populate the extents of memory available for loading BL32
+ ******************************************************************************/
+void bl2_plat_get_bl32_meminfo(meminfo_t *bl32_meminfo)
+{
+ /*
+ * Populate the extents of memory available for loading BL32.
+ * TODO: We are temporarily executing BL2 from TZDRAM;
+ * will eventually move to Trusted SRAM
+ */
+ bl32_meminfo->total_base = BL32_BASE;
+ bl32_meminfo->free_base = BL32_BASE;
+ bl32_meminfo->total_size =
+ (TZDRAM_BASE + TZDRAM_SIZE) - BL32_BASE;
+ bl32_meminfo->free_size =
+ (TZDRAM_BASE + TZDRAM_SIZE) - BL32_BASE;
+ bl32_meminfo->attr = BOT_LOAD;
+ bl32_meminfo->next = 0;
+}
+
+
+/*******************************************************************************
+ * Populate the extents of memory available for loading BL33
+ ******************************************************************************/
+void bl2_plat_get_bl33_meminfo(meminfo_t *bl33_meminfo)
+{
+ bl33_meminfo->total_base = DRAM_BASE;
+ bl33_meminfo->total_size = DRAM_SIZE;
+ bl33_meminfo->free_base = DRAM_BASE;
+ bl33_meminfo->free_size = DRAM_SIZE;
+ bl33_meminfo->attr = 0;
+ bl33_meminfo->attr = 0;
+}
diff --git a/plat/fvp/bl31_plat_setup.c b/plat/fvp/bl31_plat_setup.c
index baf7df1..033a8fa 100644
--- a/plat/fvp/bl31_plat_setup.c
+++ b/plat/fvp/bl31_plat_setup.c
@@ -29,6 +29,8 @@
*/
#include <arch.h>
+#include <arch_helpers.h>
+#include <assert.h>
#include <bl_common.h>
#include <bl31.h>
#include <console.h>
@@ -66,38 +68,47 @@ extern unsigned long __COHERENT_RAM_END__;
#define BL31_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
#define BL31_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
+
+#if RESET_TO_BL31
+static entry_point_info_t bl32_entrypoint_info;
+static entry_point_info_t bl33_entrypoint_info;
+#else
/*******************************************************************************
* Reference to structure which holds the arguments that have been passed to
* BL31 from BL2.
******************************************************************************/
-static bl31_args_t *bl2_to_bl31_args;
-
-meminfo_t *bl31_plat_sec_mem_layout(void)
-{
- return &bl2_to_bl31_args->bl31_meminfo;
-}
-
-meminfo_t *bl31_plat_get_bl32_mem_layout(void)
-{
- return &bl2_to_bl31_args->bl32_meminfo;
-}
+static bl31_params_t *bl2_to_bl31_params;
+#endif
/*******************************************************************************
- * Return a pointer to the 'el_change_info' structure of the next image for the
+ * Return a pointer to the 'entry_point_info' structure of the next image for the
* security state specified. BL33 corresponds to the non-secure image type
* while BL32 corresponds to the secure image type. A NULL pointer is returned
* if the image does not exist.
******************************************************************************/
-el_change_info_t *bl31_get_next_image_info(uint32_t type)
+entry_point_info_t *bl31_get_next_image_info(uint32_t type)
{
- el_change_info_t *next_image_info;
+ entry_point_info_t *next_image_info;
+
+#if RESET_TO_BL31
+
+ if (type == NON_SECURE)
+ plat_get_entry_point_info(NON_SECURE, &bl33_entrypoint_info);
+ else
+ plat_get_entry_point_info(SECURE, &bl32_entrypoint_info);
next_image_info = (type == NON_SECURE) ?
- &bl2_to_bl31_args->bl33_image_info :
- &bl2_to_bl31_args->bl32_image_info;
+ &bl33_entrypoint_info :
+ &bl32_entrypoint_info;
+#else
+ next_image_info = (type == NON_SECURE) ?
+ bl2_to_bl31_params->bl33_ep_info :
+ bl2_to_bl31_params->bl32_ep_info;
+#endif
+
/* None of the images on this platform can have 0x0 as the entrypoint */
- if (next_image_info->entrypoint)
+ if (next_image_info->pc)
return next_image_info;
else
return NULL;
@@ -114,16 +125,39 @@ el_change_info_t *bl31_get_next_image_info(uint32_t type)
* has flushed this information to memory, so we are guaranteed to pick up good
* data
******************************************************************************/
-void bl31_early_platform_setup(bl31_args_t *from_bl2,
- void *data)
+void bl31_early_platform_setup(bl31_params_t *from_bl2,
+ void *plat_params_from_bl2)
{
- bl2_to_bl31_args = from_bl2;
-
/* Initialize the console to provide early debug support */
console_init(PL011_UART0_BASE);
/* Initialize the platform config for future decision making */
platform_config_setup();
+
+#if RESET_TO_BL31
+ /* There are no parameters from BL2 if BL31 is a reset vector */
+ assert(from_bl2 == NULL);
+ assert(plat_params_from_bl2 == NULL);
+
+
+ /*
+ * Do initial security configuration to allow DRAM/device access. On
+ * Base FVP only DRAM security is programmable (via TrustZone), but
+ * other platforms might have more programmable security devices
+ * present.
+ */
+ plat_security_setup();
+#else
+ /* Check params passed from BL2 should not be NULL,
+ * We are not checking plat_params_from_bl2 as NULL as we are not
+ * using it on FVP
+ */
+ assert(from_bl2 != NULL);
+ assert(from_bl2->h.type == PARAM_BL31);
+ assert(from_bl2->h.version >= VERSION_1);
+
+ bl2_to_bl31_params = from_bl2;
+#endif
}
/*******************************************************************************
@@ -172,9 +206,49 @@ void bl31_platform_setup()
******************************************************************************/
void bl31_plat_arch_setup()
{
- configure_mmu_el3(&bl2_to_bl31_args->bl31_meminfo,
+#if RESET_TO_BL31
+ fvp_cci_setup();
+#endif
+
+ configure_mmu_el3(TZRAM_BASE,
+ TZRAM_SIZE,
BL31_RO_BASE,
BL31_RO_LIMIT,
BL31_COHERENT_RAM_BASE,
BL31_COHERENT_RAM_LIMIT);
}
+
+#if RESET_TO_BL31
+/*******************************************************************************
+ * Generate the entry point info for Non Secure and Secure images
+ * for transferring control from BL31
+ ******************************************************************************/
+void plat_get_entry_point_info(unsigned long target_security,
+ entry_point_info_t *target_entry_info)
+{
+ if (target_security == NON_SECURE) {
+ SET_PARAM_HEAD(target_entry_info,
+ PARAM_EP,
+ VERSION_1,
+ 0);
+ /*
+ * Tell BL31 where the non-trusted software image
+ * is located and the entry state information
+ */
+ target_entry_info->pc = plat_get_ns_image_entrypoint();
+
+ fvp_set_bl33_ep_info(target_entry_info);
+
+ } else {
+ SET_PARAM_HEAD(target_entry_info,
+ PARAM_EP,
+ VERSION_1,
+ 0);
+ if (BL32_BASE != 0) {
+ /* Hard coding entry point to the base of the BL32 */
+ target_entry_info->pc = BL32_BASE;
+ fvp_set_bl32_ep_info(target_entry_info);
+ }
+ }
+}
+#endif
diff --git a/plat/fvp/bl32_plat_setup.c b/plat/fvp/bl32_plat_setup.c
index bb2b602..8406d31 100644
--- a/plat/fvp/bl32_plat_setup.c
+++ b/plat/fvp/bl32_plat_setup.c
@@ -63,38 +63,16 @@ extern unsigned long __COHERENT_RAM_END__;
#define BL32_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
#define BL32_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
-/* Data structure which holds the extents of the trusted SRAM for BL32 */
-static meminfo_t bl32_tzdram_layout
-__attribute__ ((aligned(PLATFORM_CACHE_LINE_SIZE),
- section("tzfw_coherent_mem")));
-
-meminfo_t *bl32_plat_sec_mem_layout(void)
-{
- return &bl32_tzdram_layout;
-}
-
/*******************************************************************************
- * BL1 has passed the extents of the trusted SRAM that's at BL32's disposal.
- * Initialize the BL32 data structure with the memory extends and initialize
- * the UART
+ * Initialize the UART
******************************************************************************/
-void bl32_early_platform_setup(meminfo_t *mem_layout,
- void *data)
+void bl32_early_platform_setup(void)
{
/*
* Initialize a different console than already in use to display
* messages from TSP
*/
console_init(PL011_UART1_BASE);
-
- /* Setup the BL32 memory layout */
- bl32_tzdram_layout.total_base = mem_layout->total_base;
- bl32_tzdram_layout.total_size = mem_layout->total_size;
- bl32_tzdram_layout.free_base = mem_layout->free_base;
- bl32_tzdram_layout.free_size = mem_layout->free_size;
- bl32_tzdram_layout.attr = mem_layout->attr;
- bl32_tzdram_layout.next = 0;
-
}
/*******************************************************************************
@@ -111,7 +89,8 @@ void bl32_platform_setup()
******************************************************************************/
void bl32_plat_arch_setup()
{
- configure_mmu_el1(&bl32_tzdram_layout,
+ configure_mmu_el1(BL32_RO_BASE,
+ (BL32_COHERENT_RAM_LIMIT - BL32_RO_BASE),
BL32_RO_BASE,
BL32_RO_LIMIT,
BL32_COHERENT_RAM_BASE,
diff --git a/plat/fvp/plat_pm.c b/plat/fvp/plat_pm.c
index f80e2d7..c47cdb0 100644
--- a/plat/fvp/plat_pm.c
+++ b/plat/fvp/plat_pm.c
@@ -285,7 +285,7 @@ int fvp_affinst_on_finish(unsigned long mpidr,
unsigned int state)
{
int rc = PSCI_E_SUCCESS;
- unsigned long linear_id, cpu_setup, cci_setup;
+ unsigned long linear_id, cpu_setup;
mailbox_t *fvp_mboxes;
unsigned int gicd_base, gicc_base, reg_val, ectlr;
@@ -308,10 +308,7 @@ int fvp_affinst_on_finish(unsigned long mpidr,
*/
fvp_pwrc_write_pponr(mpidr);
- cci_setup = platform_get_cfgvar(CONFIG_HAS_CCI);
- if (cci_setup) {
- cci_enable_coherency(mpidr);
- }
+ fvp_cci_setup();
}
break;
diff --git a/plat/fvp/platform.h b/plat/fvp/platform.h
index 40f780e..bd76d67 100644
--- a/plat/fvp/platform.h
+++ b/plat/fvp/platform.h
@@ -32,6 +32,7 @@
#define __PLATFORM_H__
#include <arch.h>
+#include <bl_common.h>
/*******************************************************************************
@@ -134,6 +135,10 @@
#define TZDRAM_SIZE 0x02000000
#define MBOX_OFF 0x1000
+/* Base address where parameters to BL31 are stored */
+#define PARAMS_BASE TZDRAM_BASE
+
+
#define DRAM_BASE 0x80000000ull
#define DRAM_SIZE 0x80000000ull
@@ -339,7 +344,7 @@
#ifndef __ASSEMBLY__
#include <stdint.h>
-
+#include <bl_common.h>
typedef volatile struct mailbox {
unsigned long value
@@ -351,6 +356,26 @@ typedef volatile struct mailbox {
******************************************************************************/
struct plat_pm_ops;
struct meminfo;
+struct bl31_params;
+struct image_info;
+struct entry_point_info;
+
+
+/*******************************************************************************
+ * This structure represents the superset of information that is passed to
+ * BL31 e.g. while passing control to it from BL2 which is bl31_params
+ * and another platform specific params
+ ******************************************************************************/
+typedef struct bl2_to_bl31_params_mem {
+ struct bl31_params bl31_params;
+ struct image_info bl31_image_info;
+ struct image_info bl32_image_info;
+ struct image_info bl33_image_info;
+ struct entry_point_info bl33_ep_info;
+ struct entry_point_info bl32_ep_info;
+ struct entry_point_info bl31_ep_info;
+} bl2_to_bl31_params_mem_t;
+
/*******************************************************************************
* Function and variable prototypes
@@ -375,12 +400,14 @@ extern int platform_setup_pm(const struct plat_pm_ops **);
extern unsigned int platform_get_core_pos(unsigned long mpidr);
extern void enable_mmu_el1(void);
extern void enable_mmu_el3(void);
-extern void configure_mmu_el1(struct meminfo *mem_layout,
+extern void configure_mmu_el1(unsigned long total_base,
+ unsigned long total_size,
unsigned long ro_start,
unsigned long ro_limit,
unsigned long coh_start,
unsigned long coh_limit);
-extern void configure_mmu_el3(struct meminfo *mem_layout,
+extern void configure_mmu_el3(unsigned long total_base,
+ unsigned long total_size,
unsigned long ro_start,
unsigned long ro_limit,
unsigned long coh_start,
@@ -391,6 +418,12 @@ extern void plat_report_exception(unsigned long);
extern unsigned long plat_get_ns_image_entrypoint(void);
extern unsigned long platform_get_stack(unsigned long mpidr);
extern uint64_t plat_get_syscnt_freq(void);
+#if RESET_TO_BL31
+extern void plat_get_entry_point_info(unsigned long target_security,
+ struct entry_point_info *target_entry_info);
+#endif
+
+extern void fvp_cci_setup(void);
/* Declarations for fvp_gic.c */
extern void gic_cpuif_deactivate(unsigned int);
@@ -412,6 +445,54 @@ extern int plat_get_image_source(const char *image_name,
/* Declarations for plat_security.c */
extern void plat_security_setup(void);
+/*
+ * Before calling this function BL2 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL2 and set SPSR and security state.
+ * On FVP we are only setting the security state, entrypoint
+ */
+extern void bl1_plat_set_bl2_ep_info(struct image_info *image,
+ struct entry_point_info *ep);
+
+/*
+ * Before calling this function BL31 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL31 and set SPSR and security state.
+ * On FVP we are only setting the security state, entrypoint
+ */
+extern void bl2_plat_set_bl31_ep_info(struct image_info *image,
+ struct entry_point_info *ep);
+
+/*
+ * Before calling this function BL32 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL32 and set SPSR and security state.
+ * On FVP we are only setting the security state, entrypoint
+ */
+extern void bl2_plat_set_bl32_ep_info(struct image_info *image,
+ struct entry_point_info *ep);
+
+/*
+ * Before calling this function BL33 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL33 and set SPSR and security state.
+ * On FVP we are only setting the security state, entrypoint
+ */
+extern void bl2_plat_set_bl33_ep_info(struct image_info *image,
+ struct entry_point_info *ep);
+
+/* Gets the memory layout for BL32 */
+extern void bl2_plat_get_bl32_meminfo(struct meminfo *mem_info);
+
+/* Gets the memory layout for BL33 */
+extern void bl2_plat_get_bl33_meminfo(struct meminfo *mem_info);
+
+/* Sets the entrypoint for BL32 */
+extern void fvp_set_bl32_ep_info(struct entry_point_info *bl32_ep_info);
+
+/* Sets the entrypoint for BL33 */
+extern void fvp_set_bl33_ep_info(struct entry_point_info *bl33_ep_info);
+
#endif /*__ASSEMBLY__*/
diff --git a/plat/fvp/platform.mk b/plat/fvp/platform.mk
index 511a25c..4de001b 100644
--- a/plat/fvp/platform.mk
+++ b/plat/fvp/platform.mk
@@ -45,7 +45,6 @@ PLAT_BL_COMMON_SOURCES := drivers/arm/pl011/pl011.c \
BL1_SOURCES += drivers/arm/cci400/cci400.c \
plat/common/aarch64/platform_up_stack.S \
plat/fvp/bl1_plat_setup.c \
- plat/fvp/aarch64/bl1_plat_helpers.S \
plat/fvp/aarch64/plat_common.c \
plat/fvp/aarch64/plat_helpers.S
@@ -67,3 +66,8 @@ BL31_SOURCES += drivers/arm/gic/gic_v2.c \
plat/fvp/aarch64/plat_helpers.S \
plat/fvp/aarch64/plat_common.c \
plat/fvp/drivers/pwrc/fvp_pwrc.c
+
+ifeq (${RESET_TO_BL31}, 1)
+ BL31_SOURCES += drivers/arm/tzc400/tzc400.c \
+ plat/fvp/plat_security.c
+endif
diff --git a/services/spd/tspd/tspd_common.c b/services/spd/tspd/tspd_common.c
index a4c3936..d3fe5dd 100644
--- a/services/spd/tspd/tspd_common.c
+++ b/services/spd/tspd/tspd_common.c
@@ -91,7 +91,7 @@ int32_t tspd_init_secure_context(uint64_t entrypoint,
tsp_ctx->mpidr = mpidr;
cm_set_context(mpidr, &tsp_ctx->cpu_ctx, SECURE);
- spsr = make_spsr(MODE_EL1, MODE_SP_ELX, rw);
+ spsr = SPSR_64(MODE_EL1, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
cm_set_el3_eret_context(SECURE, entrypoint, spsr, scr);
return 0;
diff --git a/services/spd/tspd/tspd_main.c b/services/spd/tspd/tspd_main.c
index 9fda307..21ff7ff 100644
--- a/services/spd/tspd/tspd_main.c
+++ b/services/spd/tspd/tspd_main.c
@@ -66,7 +66,7 @@ DEFINE_SVC_UUID(tsp_uuid,
0x5b3056a0, 0x3291, 0x427b, 0x98, 0x11,
0x71, 0x68, 0xca, 0x50, 0xf3, 0xfa);
-int32_t tspd_init(meminfo_t *bl32_meminfo);
+int32_t tspd_init(void);
/*******************************************************************************
@@ -76,7 +76,7 @@ int32_t tspd_init(meminfo_t *bl32_meminfo);
******************************************************************************/
int32_t tspd_setup(void)
{
- el_change_info_t *image_info;
+ entry_point_info_t *image_info;
int32_t rc;
uint64_t mpidr = read_mpidr();
uint32_t linear_id;
@@ -96,7 +96,7 @@ int32_t tspd_setup(void)
* signalling failure initializing the service. We bail out without
* registering any handlers
*/
- if (!image_info->entrypoint)
+ if (!image_info->pc)
return 1;
/*
@@ -104,7 +104,7 @@ int32_t tspd_setup(void)
* state i.e whether AArch32 or AArch64. Assuming it's AArch64
* for the time being.
*/
- rc = tspd_init_secure_context(image_info->entrypoint,
+ rc = tspd_init_secure_context(image_info->pc,
TSP_AARCH64,
mpidr,
&tspd_sp_context[linear_id]);
@@ -126,10 +126,9 @@ int32_t tspd_setup(void)
* It also assumes that a valid non-secure context has been initialised by PSCI
* so it does not need to save and restore any non-secure state. This function
* performs a synchronous entry into the Secure payload. The SP passes control
- * back to this routine through a SMC. It also passes the extents of memory made
- * available to BL32 by BL31.
+ * back to this routine through a SMC.
******************************************************************************/
-int32_t tspd_init(meminfo_t *bl32_meminfo)
+int32_t tspd_init(void)
{
uint64_t mpidr = read_mpidr();
uint32_t linear_id = platform_get_core_pos(mpidr);
@@ -137,18 +136,6 @@ int32_t tspd_init(meminfo_t *bl32_meminfo)
tsp_context_t *tsp_ctx = &tspd_sp_context[linear_id];
/*
- * Arrange for passing a pointer to the meminfo structure
- * describing the memory extents available to the secure
- * payload.
- * TODO: We are passing a pointer to BL31 internal memory
- * whereas this structure should be copied to a communication
- * buffer between the SP and SPD.
- */
- write_ctx_reg(get_gpregs_ctx(&tsp_ctx->cpu_ctx),
- CTX_GPREG_X0,
- (uint64_t) bl32_meminfo);
-
- /*
* Arrange for an entry into the test secure payload. We expect an array
* of vectors in return
*/
diff --git a/services/std_svc/psci/psci_common.c b/services/std_svc/psci/psci_common.c
index f24a2f0..025d8b4 100644
--- a/services/std_svc/psci/psci_common.c
+++ b/services/std_svc/psci/psci_common.c
@@ -303,6 +303,7 @@ int psci_set_ns_entry_info(unsigned int index,
unsigned int rw, mode, ee, spsr = 0;
unsigned long id_aa64pfr0 = read_id_aa64pfr0_el1(), scr = read_scr();
unsigned long el_status;
+ unsigned long daif;
/* Figure out what mode do we enter the non-secure world in */
el_status = (id_aa64pfr0 >> ID_AA64PFR0_EL2_SHIFT) &
@@ -330,24 +331,18 @@ int psci_set_ns_entry_info(unsigned int index,
ee = read_sctlr_el1() & SCTLR_EE_BIT;
}
- spsr = DAIF_DBG_BIT | DAIF_ABT_BIT;
- spsr |= DAIF_IRQ_BIT | DAIF_FIQ_BIT;
- spsr <<= PSR_DAIF_SHIFT;
- spsr |= make_spsr(mode, MODE_SP_ELX, !rw);
+ spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
psci_ns_entry_info[index].sctlr |= ee;
psci_ns_entry_info[index].scr |= SCR_RW_BIT;
} else {
- /* Check whether aarch32 has to be entered in Thumb mode */
- if (entrypoint & 0x1)
- spsr = SPSR32_T_BIT;
if (el_status && (scr & SCR_HCE_BIT)) {
- mode = AARCH32_MODE_HYP;
+ mode = MODE32_hyp;
ee = read_sctlr_el2() & SCTLR_EE_BIT;
} else {
- mode = AARCH32_MODE_SVC;
+ mode = MODE32_svc;
ee = read_sctlr_el1() & SCTLR_EE_BIT;
}
@@ -355,11 +350,9 @@ int psci_set_ns_entry_info(unsigned int index,
* TODO: Choose async. exception bits if HYP mode is not
* implemented according to the values of SCR.{AW, FW} bits
*/
- spsr |= DAIF_ABT_BIT | DAIF_IRQ_BIT | DAIF_FIQ_BIT;
- spsr <<= PSR_DAIF_SHIFT;
- if (ee)
- spsr |= SPSR32_EE_BIT;
- spsr |= mode;
+ daif = DAIF_ABT_BIT | DAIF_IRQ_BIT | DAIF_FIQ_BIT;
+
+ spsr = SPSR_MODE32(mode, entrypoint & 0x1, ee, daif);
/* Ensure that the CSPR.E and SCTLR.EE bits match */
psci_ns_entry_info[index].sctlr |= ee;