2 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/cpu.c b/src/soc/intel/xeon_sp/cpx/cpu.c
index ba417a7060..07c2db7bbf 100644
--- a/src/soc/intel/xeon_sp/cpx/cpu.c
+++ b/src/soc/intel/xeon_sp/cpx/cpu.c
@@ -32,6 +32,12 @@ static const void *microcode_patch;
 
 static const config_t *chip_config = NULL;
 
+bool cpu_soc_is_in_untrusted_mode(void)
+{
+	/* IA_UNTRUSTED_MODE is not supported in Cooper Lake */
+	return false;
+}
+
 static void xeon_configure_mca(void)
 {
 	msr_t msr;
diff --git a/src/soc/intel/xeon_sp/skx/cpu.c b/src/soc/intel/xeon_sp/skx/cpu.c
index fcdb2d7ea0..c29952916a 100644
--- a/src/soc/intel/xeon_sp/skx/cpu.c
+++ b/src/soc/intel/xeon_sp/skx/cpu.c
@@ -20,6 +20,12 @@
 
 static const config_t *chip_config = NULL;
 
+bool cpu_soc_is_in_untrusted_mode(void)
+{
+	/* IA_UNTRUSTED_MODE is not supported in Skylake */
+	return false;
+}
+
 static void xeon_configure_mca(void)
 {
 	msr_t msr;