diff --git a/src/conf/domain_capabilities.c b/src/conf/domain_capabilities.c
index a7f256e4ec..daeaee3c5c 100644
--- a/src/conf/domain_capabilities.c
+++ b/src/conf/domain_capabilities.c
@@ -76,6 +76,17 @@ virSEVCapabilitiesFree(virSEVCapability *cap)
 }
 
 
+void
+virSGXCapabilitiesFree(virSGXCapability *cap)
+{
+    if (!cap)
+        return;
+
+    g_free(cap->sgxSections);
+    g_free(cap);
+}
+
+
 static void
 virDomainCapsDispose(void *obj)
 {
diff --git a/src/conf/domain_capabilities.h b/src/conf/domain_capabilities.h
index e0cfa75531..1d504a3506 100644
--- a/src/conf/domain_capabilities.h
+++ b/src/conf/domain_capabilities.h
@@ -208,6 +208,22 @@ struct _virSEVCapability {
     unsigned int max_es_guests;
 };
 
+typedef struct _virSGXSection virSGXSection;
+struct _virSGXSection {
+    unsigned long long size;
+    unsigned int node;
+};
+
+typedef struct _virSGXCapability virSGXCapability;
+struct _virSGXCapability {
+    bool flc;
+    bool sgx1;
+    bool sgx2;
+    unsigned long long section_size;
+    size_t nSgxSections;
+    virSGXSection *sgxSections;
+};
+
 typedef enum {
     VIR_DOMAIN_CAPS_FEATURE_IOTHREADS = 0,
     VIR_DOMAIN_CAPS_FEATURE_VMCOREINFO,
@@ -246,6 +262,7 @@ struct _virDomainCaps {
 
     virDomainCapsFeatureGIC gic;
     virSEVCapability *sev;
+    virSGXCapability *sgx;
     /* add new domain features here */
 
     virTristateBool features[VIR_DOMAIN_CAPS_FEATURE_LAST];
@@ -296,3 +313,8 @@ void
 virSEVCapabilitiesFree(virSEVCapability *capabilities);
 
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(virSEVCapability, virSEVCapabilitiesFree);
+
+void
+virSGXCapabilitiesFree(virSGXCapability *capabilities);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(virSGXCapability, virSGXCapabilitiesFree);
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 97ff2a43e4..ebd7bc61a8 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -218,6 +218,7 @@ virDomainCapsEnumSet;
 virDomainCapsFormat;
 virDomainCapsNew;
 virSEVCapabilitiesFree;
+virSGXCapabilitiesFree;
 
 
 # conf/domain_conf.h