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Use cpuid instead of boot_cpu_has to check cpu features #133

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Apr 20, 2021
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Use cpuid instead of boot_cpu_has to check cpu features #133

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3 changes: 2 additions & 1 deletion sgx_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -313,7 +313,8 @@ static int sgx_drv_probe(struct platform_device *pdev)
if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
return -ENODEV;

if (!boot_cpu_has(X86_FEATURE_SGX)) {
cpuid(7, &eax, &ebx, &ecx, &edx);
if(!((ebx >> 2) & 0x1)){
pr_err("intel_sgx: the CPU is missing SGX\n");
return -ENODEV;
}
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