ACPI / APEI / ARM64: APEI initial support for ARM64

This patch provides APEI arch-specific bits for ARM64

Meanwhile,
 (1) Move HEST type (ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) checking to
     a generic place.
 (2) Select HAVE_ACPI_APEI when EFI and ACPI is set on ARM64, because
     arch_apei_get_mem_attribute is using efi_mem_attributes() on
     ARM64.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Tested-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
Signed-off-by: Fu Wei <fu.wei@linaro.org>
[ Fu Wei: improve && upstream ]
Acked-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Tyler Baicar <tbaicar@codeaurora.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/apei/hest.c

@@ -123,7 +123,13 @@ EXPORT_SYMBOL_GPL(apei_hest_parse);
  */
 static int __init hest_parse_cmc(struct acpi_hest_header *hest_hdr, void *data)
 {
-	return arch_apei_enable_cmcff(hest_hdr, data);
+	if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK)
+		return 0;
+
+	if (!acpi_disable_cmcff)
+		return !arch_apei_enable_cmcff(hest_hdr, data);
+
+	return 0;
 }
 
 struct ghes_arr {
@@ -232,8 +238,9 @@ void __init acpi_hest_init(void)
 		goto err;
 	}
 
-	if (!acpi_disable_cmcff)
-		apei_hest_parse(hest_parse_cmc, NULL);
+	rc = apei_hest_parse(hest_parse_cmc, NULL);
+	if (rc)
+		goto err;
 
 	if (!ghes_disable) {
 		rc = apei_hest_parse(hest_parse_ghes_count, &ghes_count);