Chang S. Bae e61d6310a0 x86/fpu: Reset permission and fpstate on exec() ... On exec(), extended register states saved in the buffer is cleared. With dynamic features, each task carries variables besides the register states. The struct fpu has permission information and struct fpstate contains buffer size and feature masks. They are all dynamically updated with dynamic features. Reset the current task's entire FPU data before an exec() so that the new task starts with default permission and fpstate. Rename the register state reset function because the old naming confuses as it does not reset struct fpstate. Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20211021225527.10184-12-chang.seok.bae@intel.com		2021-10-26 10:18:09 +02:00
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bugs.c	x86/fpu: Replace the includes of fpu/internal.h	2021-10-20 15:27:29 +02:00
context.h	x86/fpu: Rework restore_regs_from_fpstate()	2021-10-22 11:09:15 +02:00
core.c	x86/fpu: Reset permission and fpstate on exec()	2021-10-26 10:18:09 +02:00
init.c	x86/fpu: Add fpu_state_config::legacy_features	2021-10-26 10:18:09 +02:00
internal.h	x86/fpu/signal: Prepare for variable sigframe length	2021-10-26 10:18:09 +02:00
legacy.h	x86/fpu: Move mxcsr related code to core	2021-10-20 15:27:28 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
regset.c	x86/fpu: Move xstate size to fpu_*_cfg	2021-10-21 19:38:55 +02:00
signal.c	x86/fpu/signal: Prepare for variable sigframe length	2021-10-26 10:18:09 +02:00
xstate.c	x86/fpu/signal: Prepare for variable sigframe length	2021-10-26 10:18:09 +02:00
xstate.h	x86/arch_prctl: Add controls for dynamic XSTATE components	2021-10-26 10:18:09 +02:00