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From:   Xin Li <xin3.li@intel.com>
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Subject: [PATCH v10 09/38] x86/fred: Disable FRED support if CONFIG_X86_FRED is disabled
Date:   Wed, 13 Sep 2023 21:47:36 -0700
Message-Id: <20230914044805.301390-10-xin3.li@intel.com>
In-Reply-To: <20230914044805.301390-1-xin3.li@intel.com>
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From: "H. Peter Anvin (Intel)" <hpa@zytor.com>

Add CONFIG_X86_FRED to <asm/disabled-features.h> to make
cpu_feature_enabled() work correctly with FRED.

Originally-by: Megha Dey <megha.dey@intel.com>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Tested-by: Shan Kang <shan.kang@intel.com>
Signed-off-by: Xin Li <xin3.li@intel.com>
---
 arch/x86/include/asm/disabled-features.h       | 8 +++++++-
 tools/arch/x86/include/asm/disabled-features.h | 8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/disabled-features.h b/arch/x86/include/asm/disabled-features.h
index 702d93fdd10e..3cde57cb5093 100644
--- a/arch/x86/include/asm/disabled-features.h
+++ b/arch/x86/include/asm/disabled-features.h
@@ -117,6 +117,12 @@
 #define DISABLE_IBT	(1 << (X86_FEATURE_IBT & 31))
 #endif
 
+#ifdef CONFIG_X86_FRED
+# define DISABLE_FRED	0
+#else
+# define DISABLE_FRED	(1 << (X86_FEATURE_FRED & 31))
+#endif
+
 /*
  * Make sure to add features to the correct mask
  */
@@ -134,7 +140,7 @@
 #define DISABLED_MASK11	(DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET| \
 			 DISABLE_CALL_DEPTH_TRACKING|DISABLE_USER_SHSTK)
 #define DISABLED_MASK12	(DISABLE_LAM)
-#define DISABLED_MASK13	0
+#define DISABLED_MASK13	(DISABLE_FRED)
 #define DISABLED_MASK14	0
 #define DISABLED_MASK15	0
 #define DISABLED_MASK16	(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
diff --git a/tools/arch/x86/include/asm/disabled-features.h b/tools/arch/x86/include/asm/disabled-features.h
index fafe9be7a6f4..d540ecdd8812 100644
--- a/tools/arch/x86/include/asm/disabled-features.h
+++ b/tools/arch/x86/include/asm/disabled-features.h
@@ -105,6 +105,12 @@
 # define DISABLE_TDX_GUEST	(1 << (X86_FEATURE_TDX_GUEST & 31))
 #endif
 
+#ifdef CONFIG_X86_FRED
+# define DISABLE_FRED	0
+#else
+# define DISABLE_FRED	(1 << (X86_FEATURE_FRED & 31))
+#endif
+
 /*
  * Make sure to add features to the correct mask
  */
@@ -122,7 +128,7 @@
 #define DISABLED_MASK11	(DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET| \
 			 DISABLE_CALL_DEPTH_TRACKING)
 #define DISABLED_MASK12	(DISABLE_LAM)
-#define DISABLED_MASK13	0
+#define DISABLED_MASK13	(DISABLE_FRED)
 #define DISABLED_MASK14	0
 #define DISABLED_MASK15	0
 #define DISABLED_MASK16	(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
-- 
2.34.1