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Merge pull request #206 from hugeBlack/main
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,32 @@ | ||
// by khanhduytran0 | ||
#define _COMM_PAGE_START_ADDRESS (0x0000000FFFFFC000ULL) | ||
//#define _COMM_PAGE_TPRO_SUPPORT (_COMM_PAGE_START_ADDRESS + ????) | ||
#define _COMM_PAGE_TPRO_WRITE_ENABLE (_COMM_PAGE_START_ADDRESS + 0x0D0) | ||
//#define _COMM_PAGE_TPRO_WRITE_DISABLE (_COMM_PAGE_START_ADDRESS + 0x0D8) | ||
|
||
static inline bool os_thread_self_restrict_tpro_to_rw() { | ||
if (!*(uint64_t*)_COMM_PAGE_TPRO_WRITE_ENABLE) { | ||
// Doesn't have TPRO, skip this | ||
return false; | ||
} | ||
__asm__ __volatile__ ( | ||
"mov x0, %0\n" | ||
"ldr x0, [x0]\n" | ||
"msr s3_6_c15_c1_5, x0\n" | ||
"isb sy\n" | ||
:: "r" (_COMM_PAGE_TPRO_WRITE_ENABLE) | ||
: "memory", "x0" | ||
); | ||
return true; | ||
} | ||
|
||
/* | ||
inline uint64_t sprr_read() { | ||
uint64_t v; | ||
__asm__ __volatile__( | ||
"isb sy\n" | ||
"mrs %0, s3_6_c15_c1_5\n" | ||
: "=r"(v)::"memory"); | ||
return v; | ||
} | ||
*/ |
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