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Ingo Molnar authored
For some CPU models I broke the AVX2 feature detection in: 7bc371fa ("x86/fpu, crypto x86/camellia_aesni_avx2: Simplify the camellia_aesni_init() xfeature checks") 534ff06e ("x86/fpu, crypto x86/serpent_avx2: Simplify the init() xfeature checks") ... because I did not realize that it's possible for a CPU to support the xstate necessary for AVX2 execution (XSTATE_YMM), but not have the AVX2 instructions themselves. Restore the necessary CPUID checks as well. Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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