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Merge pull request #104 from athoelke:at/tsp-entrypoints-v2

pull/114/head
Andrew Thoelke 11 years ago
parent
65335d45f5 445fe84f98
commit
8957fc76aa
7 changed files with 53 additions and 124 deletions
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  1. 23
      bl32/tsp/aarch64/tsp_entrypoint.S
  2. 25
      bl32/tsp/tsp_main.c
  3. 89
      include/bl32/payloads/tsp.h
  4. 4
      plat/fvp/bl31_plat_setup.c
  5. 16
      services/spd/tspd/tspd_main.c
  6. 16
      services/spd/tspd/tspd_pm.c
  7. 4
      services/spd/tspd/tspd_private.h

23
bl32/tsp/aarch64/tsp_entrypoint.S
View File

@ -34,13 +34,7 @@
.globl tsp_entrypoint
.globl tsp_cpu_on_entry
.globl tsp_cpu_off_entry
.globl tsp_cpu_suspend_entry
.globl tsp_cpu_resume_entry
.globl tsp_fast_smc_entry
.globl tsp_std_smc_entry
.globl tsp_fiq_entry
.globl tsp_vector_table
@ -157,6 +151,21 @@ func tsp_entrypoint
tsp_entrypoint_panic:
b tsp_entrypoint_panic
/* -------------------------------------------
* Table of entrypoint vectors provided to the
* TSPD for the various entrypoints
* -------------------------------------------
*/
func tsp_vector_table
b tsp_std_smc_entry
b tsp_fast_smc_entry
b tsp_cpu_on_entry
b tsp_cpu_off_entry
b tsp_cpu_resume_entry
b tsp_cpu_suspend_entry
b tsp_fiq_entry
/*---------------------------------------------
* This entrypoint is used by the TSPD when this
* cpu is to be turned off through a CPU_OFF

25
bl32/tsp/tsp_main.c
View File

@ -60,22 +60,6 @@ static tsp_args_t tsp_smc_args[PLATFORM_CORE_COUNT];
******************************************************************************/
work_statistics_t tsp_stats[PLATFORM_CORE_COUNT];
/*******************************************************************************
* Single reference to the various entry points exported by the test secure
* payload. A single copy should suffice for all cpus as they are not expected
* to change.
******************************************************************************/
static const entry_info_t tsp_entry_info = {
tsp_std_smc_entry,
tsp_fast_smc_entry,
tsp_cpu_on_entry,
tsp_cpu_off_entry,
tsp_cpu_resume_entry,
tsp_cpu_suspend_entry,
tsp_fiq_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
@ -118,7 +102,7 @@ static tsp_args_t *set_smc_args(uint64_t arg0,
/*******************************************************************************
* TSP main entry point where it gets the opportunity to initialize its secure
* state/applications. Once the state is initialized, it must return to the
* SPD with a pointer to the 'tsp_entry_info' structure.
* SPD with a pointer to the 'tsp_vector_table' jump table.
******************************************************************************/
uint64_t tsp_main(void)
{
@ -147,12 +131,7 @@ uint64_t tsp_main(void)
tsp_stats[linear_id].cpu_on_count);
spin_unlock(&console_lock);
/*
* TODO: There is a massive assumption that the SPD and SP can see each
* other's memory without issues so it is safe to pass pointers to
* internal memory. Replace this with a shared communication buffer.
*/
return (uint64_t) &tsp_entry_info;
return (uint64_t) &tsp_vector_table;
}
/*******************************************************************************

89
include/bl32/payloads/tsp.h
View File

@ -117,24 +117,17 @@
#include <spinlock.h>
#include <stdint.h>
typedef void (*tsp_generic_fptr_t)(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
uint64_t arg3,
uint64_t arg4,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
typedef struct entry_info {
tsp_generic_fptr_t std_smc_entry;
tsp_generic_fptr_t fast_smc_entry;
tsp_generic_fptr_t cpu_on_entry;
tsp_generic_fptr_t cpu_off_entry;
tsp_generic_fptr_t cpu_resume_entry;
tsp_generic_fptr_t cpu_suspend_entry;
tsp_generic_fptr_t fiq_entry;
} entry_info_t;
typedef uint32_t tsp_vector_isn_t;
typedef struct tsp_vectors {
tsp_vector_isn_t std_smc_entry;
tsp_vector_isn_t fast_smc_entry;
tsp_vector_isn_t cpu_on_entry;
tsp_vector_isn_t cpu_off_entry;
tsp_vector_isn_t cpu_resume_entry;
tsp_vector_isn_t cpu_suspend_entry;
tsp_vector_isn_t fiq_entry;
} tsp_vectors_t;
typedef struct work_statistics {
uint32_t fiq_count; /* Number of FIQs on this cpu */
@ -166,38 +159,6 @@ CASSERT(TSP_ARGS_SIZE == sizeof(tsp_args_t), assert_sp_args_size_mismatch);
extern void tsp_get_magic(uint64_t args[4]);
extern void tsp_fiq_entry(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
uint64_t arg3,
uint64_t arg4,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern void tsp_std_smc_entry(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
uint64_t arg3,
uint64_t arg4,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern void tsp_fast_smc_entry(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
uint64_t arg3,
uint64_t arg4,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern void tsp_cpu_resume_entry(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
uint64_t arg3,
uint64_t arg4,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern tsp_args_t *tsp_cpu_resume_main(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
@ -206,14 +167,6 @@ extern tsp_args_t *tsp_cpu_resume_main(uint64_t arg0,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern void tsp_cpu_suspend_entry(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
uint64_t arg3,
uint64_t arg4,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern tsp_args_t *tsp_cpu_suspend_main(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
@ -222,23 +175,7 @@ extern tsp_args_t *tsp_cpu_suspend_main(uint64_t arg0,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern void tsp_cpu_on_entry(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
uint64_t arg3,
uint64_t arg4,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern tsp_args_t *tsp_cpu_on_main(void);
extern void tsp_cpu_off_entry(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
uint64_t arg3,
uint64_t arg4,
uint64_t arg5,
uint64_t arg6,
uint64_t arg7);
extern tsp_args_t *tsp_cpu_off_main(uint64_t arg0,
uint64_t arg1,
uint64_t arg2,
@ -261,6 +198,10 @@ extern void tsp_update_sync_fiq_stats(uint32_t type, uint64_t elr_el3);
/* Data structure to keep track of TSP statistics */
extern spinlock_t console_lock;
extern work_statistics_t tsp_stats[PLATFORM_CORE_COUNT];
/* Vector table of jumps */
extern tsp_vectors_t tsp_vector_table;
#endif /* __ASSEMBLY__ */
#endif /* __BL2_H__ */

4
plat/fvp/bl31_plat_setup.c
View File

@ -210,8 +210,8 @@ void bl31_plat_arch_setup()
fvp_cci_setup();
#endif
configure_mmu_el3(TZRAM_BASE,
TZRAM_SIZE,
configure_mmu_el3(BL31_RO_BASE,
(BL31_COHERENT_RAM_LIMIT - BL31_RO_BASE),
BL31_RO_BASE,
BL31_RO_LIMIT,
BL31_COHERENT_RAM_BASE,

16
services/spd/tspd/tspd_main.c
View File

@ -53,10 +53,10 @@
#include "tspd_private.h"
/*******************************************************************************
* Single structure to hold information about the various entry points into the
* Secure Payload. It is initialised once on the primary core after a cold boot.
* Address of the entrypoint vector table in the Secure Payload. It is
* initialised once on the primary core after a cold boot.
******************************************************************************/
entry_info_t *tsp_entry_info;
tsp_vectors_t *tsp_vectors;
/*******************************************************************************
* Array to keep track of per-cpu Secure Payload state
@ -127,7 +127,7 @@ static uint64_t tspd_sel1_interrupt_handler(uint32_t id,
SPSR_64(MODE_EL1, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS));
SMC_SET_EL3(&tsp_ctx->cpu_ctx,
CTX_ELR_EL3,
(uint64_t) tsp_entry_info->fiq_entry);
(uint64_t) &tsp_vectors->fiq_entry);
cm_el1_sysregs_context_restore(SECURE);
cm_set_next_eret_context(SECURE);
@ -370,8 +370,8 @@ uint64_t tspd_smc_handler(uint32_t smc_fid,
* Stash the SP entry points information. This is done
* only once on the primary cpu
*/
assert(tsp_entry_info == NULL);
tsp_entry_info = (entry_info_t *) x1;
assert(tsp_vectors == NULL);
tsp_vectors = (tsp_vectors_t *) x1;
/*
* SP reports completion. The SPD must have initiated
@ -465,11 +465,11 @@ uint64_t tspd_smc_handler(uint32_t smc_fid,
*/
if (GET_SMC_TYPE(smc_fid) == SMC_TYPE_FAST) {
cm_set_elr_el3(SECURE, (uint64_t)
tsp_entry_info->fast_smc_entry);
&tsp_vectors->fast_smc_entry);
} else {
set_std_smc_active_flag(tsp_ctx->state);
cm_set_elr_el3(SECURE, (uint64_t)
tsp_entry_info->std_smc_entry);
&tsp_vectors->std_smc_entry);
}
cm_el1_sysregs_context_restore(SECURE);

16
services/spd/tspd/tspd_pm.c
View File

@ -55,11 +55,11 @@ static int32_t tspd_cpu_off_handler(uint64_t cookie)
uint32_t linear_id = platform_get_core_pos(mpidr);
tsp_context_t *tsp_ctx = &tspd_sp_context[linear_id];
assert(tsp_entry_info);
assert(tsp_vectors);
assert(get_tsp_pstate(tsp_ctx->state) == TSP_PSTATE_ON);
/* Program the entry point and enter the TSP */
cm_set_elr_el3(SECURE, (uint64_t) tsp_entry_info->cpu_off_entry);
cm_set_elr_el3(SECURE, (uint64_t) &tsp_vectors->cpu_off_entry);
rc = tspd_synchronous_sp_entry(tsp_ctx);
/*
@ -89,14 +89,14 @@ static void tspd_cpu_suspend_handler(uint64_t power_state)
uint32_t linear_id = platform_get_core_pos(mpidr);
tsp_context_t *tsp_ctx = &tspd_sp_context[linear_id];
assert(tsp_entry_info);
assert(tsp_vectors);
assert(get_tsp_pstate(tsp_ctx->state) == TSP_PSTATE_ON);
/* Program the entry point, power_state parameter and enter the TSP */
write_ctx_reg(get_gpregs_ctx(&tsp_ctx->cpu_ctx),
CTX_GPREG_X0,
power_state);
cm_set_elr_el3(SECURE, (uint64_t) tsp_entry_info->cpu_suspend_entry);
cm_set_elr_el3(SECURE, (uint64_t) &tsp_vectors->cpu_suspend_entry);
rc = tspd_synchronous_sp_entry(tsp_ctx);
/*
@ -123,11 +123,11 @@ static void tspd_cpu_on_finish_handler(uint64_t cookie)
uint32_t linear_id = platform_get_core_pos(mpidr);
tsp_context_t *tsp_ctx = &tspd_sp_context[linear_id];
assert(tsp_entry_info);
assert(tsp_vectors);
assert(get_tsp_pstate(tsp_ctx->state) == TSP_PSTATE_OFF);
/* Initialise this cpu's secure context */
tspd_init_secure_context((uint64_t) tsp_entry_info->cpu_on_entry,
tspd_init_secure_context((uint64_t) &tsp_vectors->cpu_on_entry,
TSP_AARCH64,
mpidr,
tsp_ctx);
@ -158,14 +158,14 @@ static void tspd_cpu_suspend_finish_handler(uint64_t suspend_level)
uint32_t linear_id = platform_get_core_pos(mpidr);
tsp_context_t *tsp_ctx = &tspd_sp_context[linear_id];
assert(tsp_entry_info);
assert(tsp_vectors);
assert(get_tsp_pstate(tsp_ctx->state) == TSP_PSTATE_SUSPEND);
/* Program the entry point, suspend_level and enter the SP */
write_ctx_reg(get_gpregs_ctx(&tsp_ctx->cpu_ctx),
CTX_GPREG_X0,
suspend_level);
cm_set_elr_el3(SECURE, (uint64_t) tsp_entry_info->cpu_resume_entry);
cm_set_elr_el3(SECURE, (uint64_t) &tsp_vectors->cpu_resume_entry);
rc = tspd_synchronous_sp_entry(tsp_ctx);
/*

4
services/spd/tspd/tspd_private.h
View File

@ -183,7 +183,7 @@ extern const spd_pm_ops_t tspd_pm;
/*******************************************************************************
* Forward declarations
******************************************************************************/
struct entry_info;
struct tsp_vectors;
/*******************************************************************************
* Function & Data prototypes
@ -197,7 +197,7 @@ extern int32_t tspd_init_secure_context(uint64_t entrypoint,
uint64_t mpidr,
tsp_context_t *tsp_ctx);
extern tsp_context_t tspd_sp_context[TSPD_CORE_COUNT];
extern struct entry_info *tsp_entry_info;
extern struct tsp_vectors *tsp_vectors;
#endif /*__ASSEMBLY__*/
#endif /* __TSPD_PRIVATE_H__ */

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