From 40effc6feef00a65aa071869c492b2955f7eb6c6 Mon Sep 17 00:00:00 2001
From: Nick Chan <towinchenmi@gmail.com>
Date: Thu, 13 Jun 2024 15:27:50 +0800
Subject: [PATCH] sep: fixed bpr bypass

---
 src/drivers/sep/sep.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/drivers/sep/sep.c b/src/drivers/sep/sep.c
index 3281e5f4..0caf9458 100644
--- a/src/drivers/sep/sep.c
+++ b/src/drivers/sep/sep.c
@@ -104,6 +104,11 @@ void sepfw_kpf(void* sepfw_bytes, size_t sepfw_size) {
             fiprintf(stderr, "patched out bpr check\n");
 #endif
             break;
+        } else if (insn_stream[i] == 0xe1910200) { // orrs r0, r1, r0, lsl 4
+            insn_stream[i] = 0xe1500000; // cmp r0, r0
+#ifdef SEP_DEBUG
+            fiprintf(stderr, "patched out bpr check\n");
+#endif
         }
     }
 }