From eec1fc2fcc07cb1f6c723f837045c153a76f4a13 Mon Sep 17 00:00:00 2001
From: yellows8 <yellows8@users.noreply.github.com>
Date: Sat, 13 Jan 2018 23:49:54 -0500
Subject: [PATCH] Added svcSetProcessMemoryPermission and
 svcMapProcessCodeMemory/svcUnmapProcessCodeMemory. Added PERM_X.

---
 nx/include/switch/kernel/svc.h |  3 +++
 nx/include/switch/types.h      |  1 +
 nx/source/kernel/svc.s         | 15 +++++++++++++++
 3 files changed, 19 insertions(+)

diff --git a/nx/include/switch/kernel/svc.h b/nx/include/switch/kernel/svc.h
index e2d125d0..de93af0c 100644
--- a/nx/include/switch/kernel/svc.h
+++ b/nx/include/switch/kernel/svc.h
@@ -77,7 +77,10 @@ Result svcQueryDebugProcessMemory(MemoryInfo* meminfo_ptr, u32* pageinfo, Handle
 Result svcReadDebugProcessMemory(void* buffer, Handle debug, u64 addr, u64 size);
 Result svcWriteDebugProcessMemory(Handle debug, void* buffer, u64 addr, u64 size);
 Result svcManageNamedPort(Handle* portServer, const char* name, s32 maxSessions);
+Result svcSetProcessMemoryPermission(Handle proc, u64 addr, u64 size, u32 perm);
 Result svcMapProcessMemory(void* dst, Handle proc, u64 src, u64 size);
+Result svcMapProcessCodeMemory(Handle proc, u64 dst, u64 src, u64 size);
+Result svcUnmapProcessCodeMemory(Handle proc, u64 dst, u64 src, u64 size);
 Result svcCreateProcess(Handle* out, void* proc_info, u32* caps, u64 cap_num);
 Result svcStartProcess(Handle proc, s32 main_prio, s32 default_cpu, u32 stack_size);
 u64    svcCallSecureMonitor(SecmonArgs* regs);
diff --git a/nx/include/switch/types.h b/nx/include/switch/types.h
index 2ad6cbbd..b23758e0 100644
--- a/nx/include/switch/types.h
+++ b/nx/include/switch/types.h
@@ -48,6 +48,7 @@ typedef enum {
     PERM_NONE = 0,
     PERM_R    = 1,
     PERM_W    = 2,
+    PERM_X    = 4,
     PERM_RW   = PERM_R | PERM_W,
     PERM_DONTCARE = 0x10000000
 } Permission;
diff --git a/nx/source/kernel/svc.s b/nx/source/kernel/svc.s
index 06979ba7..33c9abf6 100644
--- a/nx/source/kernel/svc.s
+++ b/nx/source/kernel/svc.s
@@ -324,11 +324,26 @@ SVC_BEGIN svcManageNamedPort
 	ret
 SVC_END
 
+SVC_BEGIN svcSetProcessMemoryPermission
+	svc 0x73
+	ret
+SVC_END
+
 SVC_BEGIN svcMapProcessMemory
 	svc 0x74
 	ret
 SVC_END
 
+SVC_BEGIN svcMapProcessCodeMemory
+	svc 0x77
+	ret
+SVC_END
+
+SVC_BEGIN svcUnmapProcessCodeMemory
+	svc 0x78
+	ret
+SVC_END
+
 SVC_BEGIN svcCreateProcess
 	str x0, [sp, #-16]!
 	svc 0x79