From 8b46ad6f40df85c1939196f0f75e46d212193756 Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Date: Thu, 25 Apr 2024 10:21:19 +0200
Subject: MHR-16: Prevent other EFI from booting.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
---
 Private/FirmwareKit/EFI/API.hxx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Private/FirmwareKit/EFI/API.hxx b/Private/FirmwareKit/EFI/API.hxx
index 0e2ef200..093d10b3 100644
--- a/Private/FirmwareKit/EFI/API.hxx
+++ b/Private/FirmwareKit/EFI/API.hxx
@@ -121,6 +121,13 @@ inline void InitEFI(EfiSystemTable *SystemTable) noexcept {
 
   ST->BootServices->SetWatchdogTimer(0, 0, 0, nullptr);
   ST->ConOut->EnableCursor(ST->ConOut, false);
+
+  if (ST->FirmwareVendor[0] != '@' ||
+      ST->FirmwareVendor[1] != 'M' ||
+      ST->FirmwareVendor[1] != 'H' ||
+      ST->FirmwareVendor[1] != 'R') {
+        EFI::ThrowError(L"Unsupported Firmware", L"Firmware is unsupported, please build OVMF by yourself.");
+    }
 }
 
 #ifdef __BOOTLOADER__
-- 
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