Merge pull request #35 from AdityaGarg8/main

Fix writing to NVRAM

Author: jamlam

efi.patch

@@ -0,0 +1,18 @@
+diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
+index ae79c3300129..2303f9b06412 100644
+--- a/drivers/firmware/efi/efi.c
++++ b/drivers/firmware/efi/efi.c
+@@ -722,6 +722,13 @@ void __init efi_systab_report_header(const efi_table_hdr_t *systab_hdr,
+ 		systab_hdr->revision >> 16,
+ 		systab_hdr->revision & 0xffff,
+ 		vendor);
++
++	if (IS_ENABLED(CONFIG_X86_64) &&
++	    systab_hdr->revision > EFI_1_10_SYSTEM_TABLE_REVISION &&
++	    !strcmp(vendor, "Apple")) {
++		pr_info("Apple EFI Mac detected, using EFI v1.10 runtime services only\n");
++		efi.runtime_version = EFI_1_10_SYSTEM_TABLE_REVISION;
++	}
+ }
+
+ static __initdata char memory_type_name[][13] = {