On 7/27/21 3:26 PM, Tom Lendacky wrote:
diff --git a/include/linux/protected_guest.h b/include/linux/protected_guest.h
new file mode 100644
index 000000000000..f8ed7b72967b
--- /dev/null
+++ b/include/linux/protected_guest.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Protected Guest (and Host) Capability checks
+ *
+ * Copyright (C) 2021 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky<thomas.lendacky@xxxxxxx>
+ */
+
+#ifndef _PROTECTED_GUEST_H
+#define _PROTECTED_GUEST_H
+
+#ifndef __ASSEMBLY__
Can you include headers for bool type and false definition?
--- a/include/linux/protected_guest.h
+++ b/include/linux/protected_guest.h
@@ -12,6 +12,9 @@
#ifndef __ASSEMBLY__
+#include <linux/types.h>
+#include <linux/stddef.h>
Otherwise, I see following errors in multi-config auto testing.
include/linux/protected_guest.h:40:15: error: unknown type name 'bool'
include/linux/protected_guest.h:40:63: error: 'false' undeclared (first use in this functi
+
+#define PATTR_MEM_ENCRYPT 0 /* Encrypted memory */
+#define PATTR_HOST_MEM_ENCRYPT 1 /* Host encrypted memory */
+#define PATTR_GUEST_MEM_ENCRYPT 2 /* Guest encrypted memory */
+#define PATTR_GUEST_PROT_STATE 3 /* Guest encrypted state */
+
+#ifdef CONFIG_ARCH_HAS_PROTECTED_GUEST
+
+#include <asm/protected_guest.h>
+
+#else /* !CONFIG_ARCH_HAS_PROTECTED_GUEST */
+
+static inline bool prot_guest_has(unsigned int attr) { return false; }
+
+#endif /* CONFIG_ARCH_HAS_PROTECTED_GUEST */
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _PROTECTED_GUEST_H */
--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer
