The following commit has been merged into the x86/pasid branch of tip: Commit-ID: 1478b99a76534b6c244cfe24fa616280a9441118 Gitweb: https://git.kernel.org/tip/1478b99a76534b6c244cfe24fa616280a9441118 Author: Fenghua Yu <fenghua.yu@xxxxxxxxx> AuthorDate: Tue, 15 Sep 2020 09:30:12 -07:00 Committer: Borislav Petkov <bp@xxxxxxx> CommitterDate: Thu, 17 Sep 2020 20:22:15 +02:00 x86/cpufeatures: Mark ENQCMD as disabled when configured out Currently, the ENQCMD feature depends on CONFIG_IOMMU_SUPPORT. Add X86_FEATURE_ENQCMD to the disabled features mask so that it gets disabled when the IOMMU config option above is not enabled. Signed-off-by: Fenghua Yu <fenghua.yu@xxxxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Reviewed-by: Tony Luck <tony.luck@xxxxxxxxx> Link: https://lkml.kernel.org/r/1600187413-163670-9-git-send-email-fenghua.yu@xxxxxxxxx --- 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 4ea8584..5861d34 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)
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