From 649d372f7da8559f8b6d74ca44af64ba7d7853c4 Mon Sep 17 00:00:00 2001
From: Mary <mary@mary.zone>
Date: Tue, 20 Jun 2023 17:33:54 +0200
Subject: misc: Implement address space size workarounds (#5191)

* misc: Implement address space size workarounds

This adds code to support userland with less than 39 bits of address
space available by testing reserving multiple sizes and reducing
guess address space when needed.

This is required for ARM64 support when the kernel is
configured to use 63..39 bits for kernel space.(meaning only 38 bits is available to userland)

* Address comments

* Fix 32 bits address space support and address more comments
---
 src/Ryujinx.HLE/HOS/ArmProcessContext.cs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/Ryujinx.HLE/HOS/ArmProcessContext.cs')

diff --git a/src/Ryujinx.HLE/HOS/ArmProcessContext.cs b/src/Ryujinx.HLE/HOS/ArmProcessContext.cs
index 6338edc1..99b35528 100644
--- a/src/Ryujinx.HLE/HOS/ArmProcessContext.cs
+++ b/src/Ryujinx.HLE/HOS/ArmProcessContext.cs
@@ -25,7 +25,15 @@ namespace Ryujinx.HLE.HOS
 
         public IVirtualMemoryManager AddressSpace => _memoryManager;
 
-        public ArmProcessContext(ulong pid, ICpuEngine cpuEngine, GpuContext gpuContext, T memoryManager, bool for64Bit)
+        public ulong AddressSpaceSize { get; }
+
+        public ArmProcessContext(
+            ulong pid,
+            ICpuEngine cpuEngine,
+            GpuContext gpuContext,
+            T memoryManager,
+            ulong addressSpaceSize,
+            bool for64Bit)
         {
             if (memoryManager is IRefCounted rc)
             {
@@ -38,6 +46,8 @@ namespace Ryujinx.HLE.HOS
             _gpuContext = gpuContext;
             _cpuContext = cpuEngine.CreateCpuContext(memoryManager, for64Bit);
             _memoryManager = memoryManager;
+
+            AddressSpaceSize = addressSpaceSize;
         }
 
         public IExecutionContext CreateExecutionContext(ExceptionCallbacks exceptionCallbacks)
-- 
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