x86/cpu: Switch to arch_cpu_finalize_init()

stable inclusion
from stable-v5.10.189
commit e5eb18e164d08986543f8259d0cc10e120fb8746
category: bugfix
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I8LVBS
CVE: N/A
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e5eb18e164d08986543f8259d0cc10e120fb8746



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Intel-SIG: commit e5eb18e164d0 ("x86/cpu: Switch to arch_cpu_finalize_init()")
Backport x86 related patches from 5.10.189 upstream

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commit 7c7077a7 upstream

check_bugs() is a dumping ground for finalizing the CPU bringup. Only parts of
it has to do with actual CPU bugs.

Split it apart into arch_cpu_finalize_init() and cpu_select_mitigations().

Fixup the bogus 32bit comments while at it.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230613224545.019583869@linutronix.de


Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Aichun Shi <aichun.shi@intel.com>