mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-19 09:43:08 +00:00
f6b0115a96
Allow PSCI layer to handle any SiP service functions added by platform vendors. PSCI layer will look for SiP service function in the SiP function table located in '._secure_svc_tbl_entries' section if the SMC function identifier is not found in the PSCI standard functions table. Use DECLARE_SECURE_SVC macro to declare and add platform specific SiP service function. This new section '._secure_svc_tbl_entries' is located next to '._secure.text' section. Refer to arch/arm/cpu/armv8/u-boot.lds. Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
#ifndef __ASM_SECURE_H
|
|
#define __ASM_SECURE_H
|
|
|
|
#include <config.h>
|
|
|
|
#define __secure __attribute__ ((section ("._secure.text")))
|
|
#define __secure_data __attribute__ ((section ("._secure.data")))
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
typedef struct secure_svc_tbl {
|
|
u32 id;
|
|
#ifdef CONFIG_ARMV8_PSCI
|
|
u8 pad[4];
|
|
#endif
|
|
void *func;
|
|
} secure_svc_tbl_t;
|
|
|
|
/*
|
|
* Macro to declare a SiP function service in '_secure_svc_tbl_entries' section
|
|
*/
|
|
#define DECLARE_SECURE_SVC(_name, _id, _fn) \
|
|
static const secure_svc_tbl_t __secure_svc_ ## _name \
|
|
__attribute__((used, section("._secure_svc_tbl_entries"))) \
|
|
= { \
|
|
.id = _id, \
|
|
.func = _fn }
|
|
|
|
#else
|
|
|
|
#ifdef CONFIG_ARMV8_PSCI
|
|
#define SECURE_SVC_TBL_OFFSET 16
|
|
#else
|
|
#define SECURE_SVC_TBL_OFFSET 8
|
|
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#if defined(CONFIG_ARMV7_SECURE_BASE) || defined(CONFIG_ARMV8_SECURE_BASE)
|
|
/*
|
|
* Warning, horror ahead.
|
|
*
|
|
* The target code lives in our "secure ram", but u-boot doesn't know
|
|
* that, and has blindly added reloc_off to every relocation
|
|
* entry. Gahh. Do the opposite conversion. This hack also prevents
|
|
* GCC from generating code veeners, which u-boot doesn't relocate at
|
|
* all...
|
|
*/
|
|
#define secure_ram_addr(_fn) ({ \
|
|
DECLARE_GLOBAL_DATA_PTR; \
|
|
void *__fn = _fn; \
|
|
typeof(_fn) *__tmp = (__fn - gd->reloc_off); \
|
|
__tmp; \
|
|
})
|
|
#else
|
|
#define secure_ram_addr(_fn) (_fn)
|
|
#endif
|
|
|
|
#endif
|