diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-10-15 01:09:40 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-10-22 11:10:48 +0200 |
| commit | d72c87018d00782c3ac0a844c372158087debc0a (patch) | |
| tree | 888261305bd2b8fd746ac9547ab9fc7f2f76e5d7 /arch/x86/kernel/fpu | |
| parent | eda32f4f93b452c5fe3c352523e7f7cc085c8205 (diff) | |
x86/fpu/xstate: Move remaining xfeature helpers to core
Now that everything is mopped up, move all the helpers and prototypes into
the core header. They are not required by the outside.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211014230739.514095101@linutronix.de
Diffstat (limited to 'arch/x86/kernel/fpu')
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/kernel/fpu/xstate.h b/arch/x86/kernel/fpu/xstate.h index 3d45eb04471b..a1aa0bad2c9c 100644 --- a/arch/x86/kernel/fpu/xstate.h +++ b/arch/x86/kernel/fpu/xstate.h @@ -35,6 +35,19 @@ extern void fpu__init_system_xstate(unsigned int legacy_size); extern void *get_xsave_addr(struct xregs_state *xsave, int xfeature_nr); +static inline u64 xfeatures_mask_supervisor(void) +{ + return fpu_kernel_cfg.max_features & XFEATURE_MASK_SUPERVISOR_SUPPORTED; +} + +static inline u64 xfeatures_mask_independent(void) +{ + if (!cpu_feature_enabled(X86_FEATURE_ARCH_LBR)) + return XFEATURE_MASK_INDEPENDENT & ~XFEATURE_MASK_LBR; + + return XFEATURE_MASK_INDEPENDENT; +} + /* XSAVE/XRSTOR wrapper functions */ #ifdef CONFIG_X86_64 |