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| author |   Thomas Gleixner <tglx@linutronix.de> | 2021-06-23 14:02:16 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2021-06-23 19:29:52 +0200 |
| commit | 65e952102122bf89f0e4f1bebf8664e32587aaed (patch) | |
| tree | 4a32639ae1b4e4390e66a22d102aac2f5ad5cb71 /arch/x86/include/asm/fpu/xstate.h | |
| parent | x86/fpu: Move FXSAVE_LEAK quirk info __copy_kernel_to_fpregs() (diff) | |
| download | linux-dev-65e952102122bf89f0e4f1bebf8664e32587aaed.tar.xz linux-dev-65e952102122bf89f0e4f1bebf8664e32587aaed.zip | |
x86/fpu: Rename xfeatures_mask_user() to xfeatures_mask_uabi()
Rename it so it's clear that this is about user ABI features which can
differ from the feature set which the kernel saves and restores because the
kernel handles e.g. PKRU differently. But the user ABI (ptrace, signal
frame) expects it to be there.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210623121456.211585137@linutronix.de
Diffstat (limited to 'arch/x86/include/asm/fpu/xstate.h')
| -rw-r--r-- | arch/x86/include/asm/fpu/xstate.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h index 5764cbe39014..af9ea134bf5e 100644 --- a/arch/x86/include/asm/fpu/xstate.h +++ b/arch/x86/include/asm/fpu/xstate.h @@ -83,7 +83,11 @@ static inline u64 xfeatures_mask_supervisor(void) return xfeatures_mask_all & XFEATURE_MASK_SUPERVISOR_SUPPORTED; } -static inline u64 xfeatures_mask_user(void) +/* + * The xfeatures which are enabled in XCR0 and expected to be in ptrace + * buffers and signal frames. + */ +static inline u64 xfeatures_mask_uabi(void) { return xfeatures_mask_all & XFEATURE_MASK_USER_SUPPORTED; } |