From 7d8a2f2622dc05475359b88a033dcf01545eea8b Mon Sep 17 00:00:00 2001
From: Gliniak <Gliniak93@gmail.com>
Date: Sat, 22 Feb 2025 17:47:46 +0100
Subject: [PATCH] [Memory] Added allocation of 40k at the start of xex range.
Titles can access it and take value from it.
---
src/xenia/memory.cc | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/xenia/memory.cc b/src/xenia/memory.cc
index fde0a13c8..bd92d29f7 100644
--- a/src/xenia/memory.cc
+++ b/src/xenia/memory.cc
@@ -234,6 +234,17 @@ bool Memory::Initialize() {
heaps_.vA0000000.Alloc(0x340000, 64 * 1024, kMemoryAllocationReserve,
kMemoryProtectNoAccess, true, &unk_phys_alloc);
+ uint32_t unknown_xex_range; // Probably hypervisor?
+ heaps_.v80000000.Alloc(0x40000, 4 * 1024, kMemoryAllocationCommit,
+ kMemoryProtectRead | kMemoryProtectWrite, false,
+ &unknown_xex_range);
+
+ // Value taken from 544307D5. Title explicitly access this address and this is
+ // a value underneath it (It's constant between multiple runs)
+ uint32_t value_to_write = xe::byte_swap(0x2a6e3f38);
+ memcpy(TranslateVirtual(0x80000000 + 0x1C), &value_to_write,
+ sizeof(uint32_t));
+
return true;
}