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sys/cpu: Use cntvct_el0 instead of cntpct_el0 on aarch64 #712

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sys/cpu: Use cntvct_el0 instead of cntpct_el0 on aarch64 #712

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2 changes: 1 addition & 1 deletion checks/payloads/limine/arch_aarch64.c
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Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,7 @@ void arch_cpu_relax(void) {

uint64_t arch_counter(void) {
asm volatile ("isb" ::: "memory");
return READ_SYSREG(cntpct_el0);
return READ_SYSREG(cntvct_el0);
}

uint64_t arch_counter_hw_freq(void) {
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2 changes: 1 addition & 1 deletion common/sys/cpu.h
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Expand Up @@ -261,7 +261,7 @@ static inline void sync_icache_range(uintptr_t start, uintptr_t end) {

static inline uint64_t rdtsc(void) {
uint64_t v;
asm volatile ("mrs %0, cntpct_el0" : "=r" (v));
asm volatile ("mrs %0, cntvct_el0" : "=r"(v));
return v;
}

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