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-rw-r--r--src/include/cpu/x86/smm.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/include/cpu/x86/smm.h b/src/include/cpu/x86/smm.h
index 75c19a5cd5..ca834743b5 100644
--- a/src/include/cpu/x86/smm.h
+++ b/src/include/cpu/x86/smm.h
@@ -4,6 +4,7 @@
#define CPU_X86_SMM_H
#include <arch/cpu.h>
+#include <commonlib/region.h>
#include <types.h>
#define SMM_DEFAULT_BASE 0x30000
@@ -93,6 +94,17 @@ asmlinkage void smm_handler_start(void *params);
* account CPUs which are configured to not save their state to RAM. */
void *smm_get_save_state(int cpu);
+/* Returns true if the region overlaps with the SMM */
+bool smm_region_overlaps_handler(const struct region *r);
+
+/* Returns true if the memory pointed to overlaps with SMM reserved memory. */
+static inline bool smm_points_to_smram(const void *ptr, const size_t len)
+{
+ const struct region r = {(uintptr_t)ptr, len};
+
+ return smm_region_overlaps_handler(&r);
+}
+
/* SMM Module Loading API */
/* The smm_loader_params structure provides direction to the SMM loader: