arch/x86/include/asm/coco.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_COCO_H
   3 #define _ASM_X86_COCO_H
   4
   5 #include <asm/asm.h>
   6 #include <asm/types.h>
   7
   8 enum cc_vendor {
   9         CC_VENDOR_NONE,
  10         CC_VENDOR_AMD,
  11         CC_VENDOR_INTEL,
  12 };
  13
  14 #ifdef CONFIG_ARCH_HAS_CC_PLATFORM
  15 extern enum cc_vendor cc_vendor;
  16 extern u64 cc_mask;
  17
  18 static inline void cc_set_mask(u64 mask)
  19 {
  20         RIP_REL_REF(cc_mask) = mask;
  21 }
  22
  23 u64 cc_mkenc(u64 val);
  24 u64 cc_mkdec(u64 val);
  25 void cc_random_init(void);
  26 #else
  27 #define cc_vendor (CC_VENDOR_NONE)
  28 static const u64 cc_mask = 0;
  29
  30 static inline u64 cc_mkenc(u64 val)
  31 {
  32         return val;
  33 }
  34
  35 static inline u64 cc_mkdec(u64 val)
  36 {
  37         return val;
  38 }
  39 static inline void cc_random_init(void) { }
  40 #endif
  41
  42 #endif /* _ASM_X86_COCO_H */