diff --git a/2010-efi-libstub-add-support-for-the-apple_set_os-protoco.patch b/2010-efi-libstub-add-support-for-the-apple_set_os-protoco.patch
new file mode 100644
index 0000000..5af7c4b
--- /dev/null
+++ b/2010-efi-libstub-add-support-for-the-apple_set_os-protoco.patch
@@ -0,0 +1,101 @@
+From 33029b7ba2235a4bb67e61063984869206ceb1e3 Mon Sep 17 00:00:00 2001
+From: Kerem Karabay <kekrby@gmail.com>
+Date: Thu, 5 Jan 2023 21:07:54 +0300
+Subject: [PATCH] efi: libstub: add support for the apple_set_os protocol
+
+On dual GPU EFI Macs, the EFI stub needs to report that it is booting
+macOS in order to prevent the firmware from disabling the iGPU.
+
+See also this patch for GRUB by Andreas Heider <andreas@heider.io>:
+https://lists.gnu.org/archive/html/grub-devel/2013-12/msg00442.html
+
+Signed-off-by: Kerem Karabay <kekrby@gmail.com>
+---
+ drivers/firmware/efi/libstub/efistub.h  | 13 +++++++++++++
+ drivers/firmware/efi/libstub/x86-stub.c | 26 +++++++++++++++++++++++++
+ include/linux/efi.h                     |  1 +
+ 3 files changed, 40 insertions(+)
+
+diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h
+index 54a2822cae77..78601b65f9c8 100644
+--- a/drivers/firmware/efi/libstub/efistub.h
++++ b/drivers/firmware/efi/libstub/efistub.h
+@@ -824,6 +824,19 @@ union apple_properties_protocol {
+ 	} mixed_mode;
+ };
+ 
++typedef struct apple_set_os_protocol apple_set_os_protocol_t;
++
++struct apple_set_os_protocol {
++	u64 version;
++	efi_status_t (__efiapi *set_os_version) (const char *);
++	efi_status_t (__efiapi *set_os_vendor) (const char *);
++	struct {
++		u32 version;
++		u32 set_os_version;
++		u32 set_os_vendor;
++	} mixed_mode;
++};
++
+ typedef u32 efi_tcg2_event_log_format;
+ 
+ #define INITRD_EVENT_TAG_ID 0x8F3B22ECU
+diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c
+index a0bfd31358ba..ec0100683d9f 100644
+--- a/drivers/firmware/efi/libstub/x86-stub.c
++++ b/drivers/firmware/efi/libstub/x86-stub.c
+@@ -212,6 +212,30 @@ static void retrieve_apple_device_properties(struct boot_params *boot_params)
+ 	}
+ }
+ 
++static void apple_set_os(void)
++{
++	efi_guid_t guid = APPLE_SET_OS_PROTOCOL_GUID;
++	apple_set_os_protocol_t *set_os;
++	efi_status_t status;
++
++	status = efi_bs_call(locate_protocol, &guid, NULL, (void **)&set_os);
++	if (status != EFI_SUCCESS)
++		return;
++
++	if (efi_table_attr(set_os, version) >= 2) {
++		status = efi_fn_call(set_os, set_os_vendor, "Apple Inc.");
++		if (status != EFI_SUCCESS)
++			efi_err("Failed to set OS vendor via apple_set_os\n");
++	}
++
++	/* The version being set doesn't seem to matter */
++	if (efi_table_attr(set_os, version) > 0) {
++		status = efi_fn_call(set_os, set_os_version, "Mac OS X 10.9");
++		if (status != EFI_SUCCESS)
++			efi_err("Failed to set OS version via apple_set_os\n");
++	}
++}
++
+ static void
+ adjust_memory_range_protection(unsigned long start, unsigned long size)
+ {
+@@ -322,6 +346,8 @@ static void setup_quirks(struct boot_params *boot_params,
+ 	if (!memcmp(fw_vendor, apple, sizeof(apple))) {
+ 		if (IS_ENABLED(CONFIG_APPLE_PROPERTIES))
+ 			retrieve_apple_device_properties(boot_params);
++
++		apple_set_os();
+ 	}
+ 
+ 	if (IS_ENABLED(CONFIG_EFI_DXE_MEM_ATTRIBUTES))
+diff --git a/include/linux/efi.h b/include/linux/efi.h
+index 571d1a6e1b74..21c066ce29d0 100644
+--- a/include/linux/efi.h
++++ b/include/linux/efi.h
+@@ -385,6 +385,7 @@ void efi_native_runtime_setup(void);
+ #define EFI_MEMORY_ATTRIBUTES_TABLE_GUID	EFI_GUID(0xdcfa911d, 0x26eb, 0x469f,  0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20)
+ #define EFI_CONSOLE_OUT_DEVICE_GUID		EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4,  0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
+ #define APPLE_PROPERTIES_PROTOCOL_GUID		EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb,  0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0)
++#define APPLE_SET_OS_PROTOCOL_GUID		EFI_GUID(0xc5c5da95, 0x7d5c, 0x45e6,  0xb2, 0xf1, 0x3f, 0xd5, 0x2b, 0xb1, 0x00, 0x77)
+ #define EFI_TCG2_PROTOCOL_GUID			EFI_GUID(0x607f766c, 0x7455, 0x42be,  0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f)
+ #define EFI_LOAD_FILE_PROTOCOL_GUID		EFI_GUID(0x56ec3091, 0x954c, 0x11d2,  0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+ #define EFI_LOAD_FILE2_PROTOCOL_GUID		EFI_GUID(0x4006c0c1, 0xfcb3, 0x403e,  0x99, 0x6d, 0x4a, 0x6c, 0x87, 0x24, 0xe0, 0x6d)
+-- 
+2.41.0
+