src/Ryujinx.Cpu/LightningJit/Arm64/InstName.cs

@@ -1106,7 +1106,6 @@ namespace Ryujinx.Cpu.LightningJit.Arm64
                 case InstName.Mrs:
                 case InstName.MsrImm:
                 case InstName.MsrReg:
-                case InstName.Sysl:
                     return true;
             }
 

src/Ryujinx.Cpu/LightningJit/Arm64/SysUtils.cs

@@ -1,48 +0,0 @@
-using System.Diagnostics;
-
-namespace Ryujinx.Cpu.LightningJit.Arm64
-{
-    static class SysUtils
-    {
-        public static (uint, uint, uint, uint) UnpackOp1CRnCRmOp2(uint encoding)
-        {
-            uint op1 = (encoding >> 16) & 7;
-            uint crn = (encoding >> 12) & 0xf;
-            uint crm = (encoding >> 8) & 0xf;
-            uint op2 = (encoding >> 5) & 7;
-
-            return (op1, crn, crm, op2);
-        }
-
-        public static bool IsCacheInstEl0(uint encoding)
-        {
-            (uint op1, uint crn, uint crm, uint op2) = UnpackOp1CRnCRmOp2(encoding);
-
-            return ((op1 << 11) | (crn << 7) | (crm << 3) | op2) switch
-            {
-                0b011_0111_0100_001 => true, // DC ZVA
-                0b011_0111_1010_001 => true, // DC CVAC
-                0b011_0111_1100_001 => true, // DC CVAP
-                0b011_0111_1011_001 => true, // DC CVAU
-                0b011_0111_1110_001 => true, // DC CIVAC
-                0b011_0111_0101_001 => true, // IC IVAU
-                _ => false,
-            };
-        }
-
-        public static bool IsCacheInstUciTrapped(uint encoding)
-        {
-            (uint op1, uint crn, uint crm, uint op2) = UnpackOp1CRnCRmOp2(encoding);
-
-            return ((op1 << 11) | (crn << 7) | (crm << 3) | op2) switch
-            {
-                0b011_0111_1010_001 => true, // DC CVAC
-                0b011_0111_1100_001 => true, // DC CVAP
-                0b011_0111_1011_001 => true, // DC CVAU
-                0b011_0111_1110_001 => true, // DC CIVAC
-                0b011_0111_0101_001 => true, // IC IVAU
-                _ => false,
-            };
-        }
-    }
-}

src/Ryujinx.Cpu/LightningJit/Arm64/Target/Arm64/Decoder.cs

@@ -257,7 +257,7 @@ namespace Ryujinx.Cpu.LightningJit.Arm64.Target.Arm64
 
                 (name, flags, AddressForm addressForm) = InstTable.GetInstNameAndFlags(encoding, cpuPreset.Version, cpuPreset.Features);
 
-                if (name.IsPrivileged() || (name == InstName.Sys && IsPrivilegedSys(encoding)))
+                if (name.IsPrivileged())
                 {
                     name = InstName.UdfPermUndef;
                     flags = InstFlags.None;
@@ -341,11 +341,6 @@ namespace Ryujinx.Cpu.LightningJit.Arm64.Target.Arm64
             return new(startAddress, address, insts, !isTruncated && !name.IsException(), isTruncated, isLoopEnd);
         }
 
-        private static bool IsPrivilegedSys(uint encoding)
-        {
-            return !SysUtils.IsCacheInstEl0(encoding);
-        }
-
         private static bool IsMrsNzcv(uint encoding)
         {
             return (encoding & ~0x1fu) == 0xd53b4200u;

src/Ryujinx.Cpu/LightningJit/Arm64/Target/Arm64/InstEmitMemory.cs

@@ -13,14 +13,6 @@ namespace Ryujinx.Cpu.LightningJit.Arm64.Target.Arm64
 
         public static void RewriteSysInstruction(int asBits, MemoryManagerType mmType, CodeWriter writer, RegisterAllocator regAlloc, uint encoding)
         {
-            // TODO: Handle IC instruction, it should invalidate the JIT cache.
-
-            if (InstEmitSystem.IsCacheInstForbidden(encoding))
-            {
-                // Current OS does not allow cache maintenance instructions from user mode, just do nothing.
-                return;
-            }
-
             int rtIndex = RegisterUtils.ExtractRt(encoding);
             if (rtIndex == RegisterUtils.ZrIndex)
             {

src/Ryujinx.Cpu/LightningJit/Arm64/Target/Arm64/InstEmitSystem.cs

@@ -69,7 +69,7 @@ namespace Ryujinx.Cpu.LightningJit.Arm64.Target.Arm64
                     asm.LdrRiUn(Register((int)rd), Register(regAlloc.FixedContextRegister), NativeContextOffsets.TpidrEl0Offset);
                 }
             }
-            else if ((encoding & ~0x1f) == 0xd53b0020 && IsCtrEl0AccessForbidden()) // mrs x0, ctr_el0
+            else if ((encoding & ~0x1f) == 0xd53b0020 && IsAppleOS()) // mrs x0, ctr_el0
             {
                 uint rd = encoding & 0x1f;
 
@@ -115,7 +115,7 @@ namespace Ryujinx.Cpu.LightningJit.Arm64.Target.Arm64
             {
                 return true;
             }
-            else if ((encoding & ~0x1f) == 0xd53b0020 && IsCtrEl0AccessForbidden()) // mrs x0, ctr_el0
+            else if ((encoding & ~0x1f) == 0xd53b0020 && IsAppleOS()) // mrs x0, ctr_el0
             {
                 return true;
             }
@@ -127,16 +127,9 @@ namespace Ryujinx.Cpu.LightningJit.Arm64.Target.Arm64
             return false;
         }
 
-        private static bool IsCtrEl0AccessForbidden()
+        private static bool IsAppleOS()
         {
-            // Only Linux allows accessing CTR_EL0 from user mode.
-            return OperatingSystem.IsWindows() || OperatingSystem.IsMacOS() || OperatingSystem.IsIOS();
-        }
-
-        public static bool IsCacheInstForbidden(uint encoding)
-        {
-            // Windows does not allow the cache maintenance instructions to be used from user mode.
-            return OperatingSystem.IsWindows() && SysUtils.IsCacheInstUciTrapped(encoding);
+            return OperatingSystem.IsMacOS() || OperatingSystem.IsIOS();
         }
 
         public static bool NeedsContextStoreLoad(InstName name)

src/Ryujinx/UI/Windows/MainWindow.axaml

@@ -14,8 +14,8 @@
     WindowState="{Binding WindowState}"
     Width="{Binding WindowWidth}"
     Height="{Binding WindowHeight}"
-    MinWidth="800"
-    MinHeight="500"
+    MinWidth="1092"
+    MinHeight="672"
     d:DesignHeight="720"
     d:DesignWidth="1280"
     x:DataType="viewModels:MainWindowViewModel"