coreboot-kgpe-d16/util/romcc/tests/simple_test19.c

25 lines
352 B
C

static void hlt(void)
{
__builtin_hlt();
}
typedef __builtin_msr_t msr_t;
static msr_t rdmsr(unsigned long index)
{
return __builtin_rdmsr(index);
}
static void wrmsr(unsigned long index, msr_t msr)
{
__builtin_wrmsr(index, msr.lo, msr.hi);
}
static void main(void)
{
msr_t msr;
msr = rdmsr(0x1234);
msr.lo &= ~(1<<5);
wrmsr(0x1234, msr);
}