x86/sgx: Add hook to error injection address validation

mainline inclusion
from mainline-5.17
commit c6acb1e7
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I5EZFM


CVE: NA

Intel-SIG: commit c6acb1e7 x86/sgx: Add hook to error injection
address validation.
Backport for SGX MCA recovery co-existence support

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

SGX reserved memory does not appear in the standard address maps.

Add hook to call into the SGX code to check if an address is located
in SGX memory.

There are other challenges in injecting errors into SGX. Update the
documentation with a sequence of operations to inject.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Tested-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lkml.kernel.org/r/20211026220050.697075-7-tony.luck@intel.com


Signed-off-by: Zhiquan Li <zhiquan1.li@intel.com>