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check the cpu features before the NX bit is set

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This commit is contained in:
Stefan Lankes 2016-01-05 23:21:04 +01:00
parent d02440f8f6
commit e53c126bf3
1 changed files with 1 additions and 1 deletions
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2
hermit/arch/x86/kernel/processor.c
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@ -308,7 +308,7 @@ int cpu_detection(void) {
}
if (cpu_info.feature3 & CPU_FEATURE_SYSCALL) {
wrmsr(MSR_EFER, rdmsr(MSR_EFER) | EFER_LMA | EFER_LME | EFER_NXE | EFER_SCE);
wrmsr(MSR_EFER, rdmsr(MSR_EFER) | EFER_LMA | EFER_LME | EFER_SCE);
wrmsr(MSR_STAR, (0x1BULL << 48) | (0x08ULL << 32));
wrmsr(MSR_LSTAR, (size_t) &isrsyscall);
// clear IF flag during an interrupt