Thomas Gleixner eb6f51723f x86/fpu: Make copy_xstate_to_kernel() usable for [x]fpregs_get() ... When xsave with init state optimization is used then a component's state in the task's xsave buffer can be stale when the corresponding feature bit is not set. fpregs_get() and xfpregs_get() invoke fpstate_sanitize_xstate() to update the task's xsave buffer before retrieving the FX or FP state. That's just duplicated code as copy_xstate_to_kernel() already handles this correctly. Add a copy mode argument to the function which allows to restrict the state copy to the FP and SSE features. Also rename the function to copy_xstate_to_uabi_buf() so the name reflects what it is doing. 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/20210623121452.805327286@linutronix.de		2021-06-23 17:49:47 +02:00
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asm	x86/fpu: Make copy_xstate_to_kernel() usable for [x]fpregs_get()	2021-06-23 17:49:47 +02:00
uapi/asm	x86/elf: Support a new ELF aux vector AT_MINSIGSTKSZ	2021-05-19 12:18:45 +02:00