1 files changed, 50 insertions, 0 deletions
diff --git a/arch/x86/include/asm/coco.h b/arch/x86/include/asm/coco.h
new file mode 100644
index 000000000000..e1dbf8df1b69
--- /dev/null
+++ b/arch/x86/include/asm/coco.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_COCO_H
+#define _ASM_X86_COCO_H
+
+#include <asm/asm.h>
+#include <asm/types.h>
+
+enum cc_vendor {
+	CC_VENDOR_NONE,
+	CC_VENDOR_AMD,
+	CC_VENDOR_INTEL,
+};
+
+#ifdef CONFIG_ARCH_HAS_CC_PLATFORM
+extern enum cc_vendor cc_vendor;
+extern u64 cc_mask;
+
+static inline u64 cc_get_mask(void)
+{
+	return cc_mask;
+}
+
+static inline void cc_set_mask(u64 mask)
+{
+	cc_mask = mask;
+}
+
+u64 cc_mkenc(u64 val);
+u64 cc_mkdec(u64 val);
+void cc_random_init(void);
+#else
+#define cc_vendor (CC_VENDOR_NONE)
+static inline u64 cc_get_mask(void)
+{
+	return 0;
+}
+
+static inline u64 cc_mkenc(u64 val)
+{
+	return val;
+}
+
+static inline u64 cc_mkdec(u64 val)
+{
+	return val;
+}
+static inline void cc_random_init(void) { }
+#endif
+
+#endif /* _ASM_X86_COCO_H */