18 lines
330 B
C
18 lines
330 B
C
#include "x86/msr.h"
|
|
|
|
void read_msr(enum msr_id_t msr_addr, uint64_t *value)
|
|
{
|
|
uint64_t v;
|
|
asm volatile("rdmsr"
|
|
: "=A" (v)
|
|
: "c" (msr_addr));
|
|
*value = v;
|
|
}
|
|
|
|
void write_msr(enum msr_id_t msr_addr, uint64_t *value)
|
|
{
|
|
uint64_t v = *value;
|
|
asm volatile("wrmsr"
|
|
:: "c"(msr_addr), "A"(v));
|
|
}
|