Currently, the ENQCMD feature depends on CONFIG_IOMMU_SUPPORT.
Add X86_FEATURE_ENQCMD to the disabled features mask.

Signed-off-by: Fenghua Yu <fenghua...@intel.com>
Reviewed-by: Tony Luck <tony.l...@intel.com>
---
v8:
- Re-write commit message (Boris).
- Move "#ifdef CONFIG_IOMMU_SUPPORT" hunk from patch 9 (Boris).

v7:
- Split this patch from a previous patch.

 arch/x86/include/asm/disabled-features.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/disabled-features.h 
b/arch/x86/include/asm/disabled-features.h
index 4ea8584682f9..5861d34f9771 100644
--- a/arch/x86/include/asm/disabled-features.h
+++ b/arch/x86/include/asm/disabled-features.h
@@ -56,6 +56,12 @@
 # define DISABLE_PTI           (1 << (X86_FEATURE_PTI & 31))
 #endif
 
+#ifdef CONFIG_IOMMU_SUPPORT
+# define DISABLE_ENQCMD        0
+#else
+# define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
+#endif
+
 /*
  * Make sure to add features to the correct mask
  */
@@ -75,7 +81,8 @@
 #define DISABLED_MASK13        0
 #define DISABLED_MASK14        0
 #define DISABLED_MASK15        0
-#define DISABLED_MASK16        
(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP)
+#define DISABLED_MASK16        
(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
+                        DISABLE_ENQCMD)
 #define DISABLED_MASK17        0
 #define DISABLED_MASK18        0
 #define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 19)
-- 
2.19.1

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