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added function get_mc_reg() to obtain a pointer to mc_register_t located at MC_BASE

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Resaec 2018-04-26 18:21:57 +02:00
parent 79b4b608e5
commit 0ebf9aab24
2 changed files with 9 additions and 4 deletions
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4
exosphere/src/mc.c
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@ -93,3 +93,7 @@ void configure_kernel_carveout(unsigned int carveout_id, uint64_t address, uint6
carveout->flags_9 = 0;
carveout->allowed_clients = 0x8B;
}
volatile mc_register_t *get_mc_reg() {
return (volatile mc_register_t *)(MC_BASE);
}

9
exosphere/src/mc.h
View File

@ -65,8 +65,8 @@ typedef struct {
This must point to a region of the physical address map allocated to EMEM for it to be effective; the MC cannot secure address space it does not own. (In other words, this is an absolute address, not an offset.)
Above is the list of clients with the TrustZone-security access. [18.11.1.20]
Note that AXICIF clients will adhere to the standard AXI protocol "aprot[1]==0" indication for secure requests. */
uint32_t SECURITY_BOM;
uint32_t SECURITY_SIZE_MB; /* SECURITY_SIZE_MB is the size, in megabytes, of the secured region. If set to 0, the security check in MC is disabled */
uint32_t SECURITY_BOM; /* MC_SECURITY_CFG0_0 */
uint32_t SECURITY_SIZE_MB; /* MC_SECURITY_CFG1_0 -- SECURITY_SIZE_MB is the size, in megabytes, of the secured region. If set to 0, the security check in MC is disabled */
uint32_t _0x78[26];
uint32_t EMEM_ARB_RING1_THROTTLE_0;
uint32_t EMEM_ARB_RING3_THROTTLE_0;
@ -113,14 +113,15 @@ typedef struct {
/* Base Address Higher Bits
SECURITY_BOM_HI has the higher address bits beyond 32 bits of the
base of the secured region, limited to MB granularity */
uint32_t SECURITY_BOM_HI;
uint32_t SECURITY_BOM_HI; /* MC_SECURITY_CFG3_0 */
uint32_t _0x9C0[118];
uint32_t SMMU_TRANSLATION_ENABLE_4_0;
} mc_register_t;
} mc_register_t; /* 0xB98 */
volatile security_carveout_t *get_carveout_by_id(unsigned int carveout);
void configure_default_carveouts(void);
void configure_kernel_carveout(unsigned int carveout_id, uint64_t address, uint64_t size);
volatile mc_register_t *get_mc_reg();
#endif