ShuriZma
/
xenia
mirror of https://github.com/xenia-project/xenia.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[Core] Protect the last 64kb of memory

This commit is contained in:
DrChat 2018-02-14 21:58:05 -06:00
parent b17d6f5088
commit 0cc2b0fc9f
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/xenia/memory.cc
View File

@ -171,12 +171,14 @@ bool Memory::Initialize() {
heaps_.vE0000000.Initialize(virtual_membase_, 0xE0000000, 0x1FD00000, 4096,
&heaps_.physical);
// Protect the first 64kb of memory.
// Protect the first and last 64kb of memory.
heaps_.v00000000.AllocFixed(
0x00000000, 64 * 1024, 64 * 1024,
0x00000000, 0x10000, 0x10000,
kMemoryAllocationReserve | kMemoryAllocationCommit,
!FLAGS_protect_zero ? kMemoryProtectRead | kMemoryProtectWrite
: kMemoryProtectNoAccess);
heaps_.physical.AllocFixed(0x1FFF0000, 0x10000, 0x10000,
kMemoryAllocationReserve, kMemoryProtectNoAccess);
// GPU writeback.
// 0xC... is physical, 0x7F... is virtual. We may need to overlay these.