diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/common/runtime_svc.h | 21 | ||||
| -rw-r--r-- | include/lib/aarch64/smcc_helpers.h | 12 |
2 files changed, 32 insertions, 1 deletions
diff --git a/include/common/runtime_svc.h b/include/common/runtime_svc.h index adafcee4..514f334a 100644 --- a/include/common/runtime_svc.h +++ b/include/common/runtime_svc.h @@ -43,10 +43,17 @@ * Constants to allow the assembler access a runtime service * descriptor */ +#ifdef AARCH32 +#define RT_SVC_SIZE_LOG2 4 +#define RT_SVC_DESC_INIT 8 +#define RT_SVC_DESC_HANDLE 12 +#else #define RT_SVC_SIZE_LOG2 5 -#define SIZEOF_RT_SVC_DESC (1 << RT_SVC_SIZE_LOG2) #define RT_SVC_DESC_INIT 16 #define RT_SVC_DESC_HANDLE 24 +#endif /* AARCH32 */ +#define SIZEOF_RT_SVC_DESC (1 << RT_SVC_SIZE_LOG2) + /* * The function identifier has 6 bits for the owning entity number and @@ -123,10 +130,22 @@ CASSERT(RT_SVC_DESC_HANDLE == __builtin_offsetof(rt_svc_desc_t, handle), \ ((call_type & FUNCID_TYPE_MASK) \ << FUNCID_OEN_WIDTH)) +/* + * This macro generates the unique owning entity number from the SMC Function + * ID. This unique oen is used to access an entry in the + * 'rt_svc_descs_indices' array to invoke the corresponding runtime service + * handler during SMC handling. + */ +#define get_unique_oen_from_smc_fid(fid) \ + get_unique_oen(((fid) >> FUNCID_OEN_SHIFT), \ + ((fid) >> FUNCID_TYPE_SHIFT)) + /******************************************************************************* * Function & variable prototypes ******************************************************************************/ void runtime_svc_init(void); +uintptr_t handle_runtime_svc(uint32_t smc_fid, void *cookie, void *handle, + unsigned int flags); extern uintptr_t __RT_SVC_DESCS_START__; extern uintptr_t __RT_SVC_DESCS_END__; void init_crash_reporting(void); diff --git a/include/lib/aarch64/smcc_helpers.h b/include/lib/aarch64/smcc_helpers.h index 617a5bce..6e633839 100644 --- a/include/lib/aarch64/smcc_helpers.h +++ b/include/lib/aarch64/smcc_helpers.h @@ -82,5 +82,17 @@ ((const uint32_t *) &(_uuid))[2], \ ((const uint32_t *) &(_uuid))[3]) +/* + * Helper macro to retrieve the SMC parameters from cpu_context_t. + */ +#define get_smc_params_from_ctx(_hdl, _x1, _x2, _x3, _x4) \ + do { \ + const gp_regs_t *regs = get_gpregs_ctx(_hdl); \ + _x1 = read_ctx_reg(regs, CTX_GPREG_X1); \ + _x2 = read_ctx_reg(regs, CTX_GPREG_X2); \ + _x3 = read_ctx_reg(regs, CTX_GPREG_X3); \ + _x4 = read_ctx_reg(regs, CTX_GPREG_X4); \ + } while (0) + #endif /*__ASSEMBLY__*/ #endif /* __SMCC_HELPERS_H__ */ |