platform/x86/intel/ifs: Check IFS Image sanity

mainline inclusion
from mainline-v5.19-rc1
commit 846e751f
category: feature
feature: Intel In Filed Scan(IFS)
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I651S7
CVE: N/A
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/


commit/?id=846e751f

Intel-SIG: commit 846e751f ("platform/x86/intel/ifs: Check IFS Image sanity")

-------------------------------------

platform/x86/intel/ifs: Check IFS Image sanity

IFS image is designed specifically for a given family, model and
stepping of the processor. Like Intel microcode header, the IFS image
has the Processor Signature, Checksum and Processor Flags that must be
matched with the information returned by the CPUID.

Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Co-developed-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220506225410.1652287-7-tony.luck@intel.com


Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Aichun Shi <aichun.shi@intel.com>