diff --git a/include/cpuinfo_x86.h b/include/cpuinfo_x86.h
index 0c235d6..ff30182 100644
--- a/include/cpuinfo_x86.h
+++ b/include/cpuinfo_x86.h
@@ -52,6 +52,9 @@ typedef struct {
   int avx512_4vnniw : 1;
   int avx512_4vbmi2 : 1;
 
+  int smx : 1;
+  int sgx : 1;
+
   // Make sure to update X86FeaturesEnum below if you add a field here.
 } X86Features;
 
@@ -133,6 +136,8 @@ typedef enum {
   X86_AVX512VPOPCNTDQ,
   X86_AVX512_4VNNIW,
   X86_AVX512_4VBMI2,
+  X86_SMX,
+  X86_SGX,
   X86_LAST_,
 } X86FeaturesEnum;
 
diff --git a/src/cpuinfo_x86.c b/src/cpuinfo_x86.c
index 3238ab1..7460210 100644
--- a/src/cpuinfo_x86.c
+++ b/src/cpuinfo_x86.c
@@ -102,6 +102,9 @@ static void ParseCpuId(const uint32_t max_cpuid_leaf, X86Info* info) {
   features->bmi2 = IsBitSet(leaf_7.ebx, 8);
   features->vpclmulqdq = IsBitSet(leaf_7.ecx, 10);
 
+  features->smx = IsBitSet(leaf_1.ecx, 6);
+  features->sgx = IsBitSet(leaf_7.ebx, 2);
+
   if (have_sse_os_support) {
     features->ssse3 = IsBitSet(leaf_1.ecx, 9);
     features->sse4_1 = IsBitSet(leaf_1.ecx, 19);
@@ -313,6 +316,10 @@ int GetX86FeaturesEnumValue(const X86Features* features,
       return features->avx512_4vnniw;
     case X86_AVX512_4VBMI2:
       return features->avx512_4vbmi2;
+    case X86_SMX:
+      return features->smx;
+    case X86_SGX:
+      return features->sgx;
     case X86_LAST_:
       break;
   }
@@ -375,6 +382,10 @@ const char* GetX86FeaturesEnumName(X86FeaturesEnum value) {
       return "avx512_4vnniw";
     case X86_AVX512_4VBMI2:
       return "avx512_4vbmi2";
+    case X86_SMX:
+      return "smx";
+    case X86_SGX:
+      return "sgx";
     case X86_LAST_:
       break;
   }