zephyr/arch/x86/include
Andrew Boie 50d72ed9c9 x86: implement eager FP save/restore
Speculative execution side channel attacks can read the
entire FPU/SIMD register state on affected Intel Core
processors, see CVE-2018-3665.

We now have two options for managing floating point
context between threads on x86: CONFIG_EAGER_FP_SHARING
and CONFIG_LAZY_FP_SHARING.

The mitigation is to unconditionally save/restore these
registers on context switch, instead of the lazy sharing
algorithm used by CONFIG_LAZY_FP_SHARING.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-03-11 20:36:55 -07:00
..
asm_inline.h
asm_inline_gcc.h x86: implement eager FP save/restore 2019-03-11 20:36:55 -07:00
cache_private.h
exception.h
kernel_arch_data.h x86: implement eager FP save/restore 2019-03-11 20:36:55 -07:00
kernel_arch_func.h
kernel_arch_thread.h x86: implement eager FP save/restore 2019-03-11 20:36:55 -07:00
mmustructs.h
offsets_short_arch.h
swapstk.h
tracing_arch.h