Step 1 - 参数与核心数据模型

2026-04-14 00:40:16 +08:00
parent fa7b04a880
commit 7eab504f4a
21 changed files with 595 additions and 19 deletions
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: d1f0f89f24ab6334f87c91090393ab8b
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
@@ -0,0 +1,28 @@
+using System;
+
+namespace VMdemo.Core
+{
+    [Serializable]
+    public struct AddressParts
+    {
+        public AddressParts(ulong vpn, ulong offset, ulong l1Index, ulong l2Index)
+        {
+            Vpn = vpn;
+            Offset = offset;
+            L1Index = l1Index;
+            L2Index = l2Index;
+        }
+
+        public static AddressParts Empty => new AddressParts(0UL, 0UL, 0UL, 0UL);
+
+        public ulong Vpn;
+        public ulong Offset;
+        public ulong L1Index;
+        public ulong L2Index;
+
+        public override string ToString()
+        {
+            return $"VPN={Vpn}, Offset={Offset}, L1={L1Index}, L2={L2Index}";
+        }
+    }
+}
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 2170a834280c39d40826bf87a50a20b4
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
@@ -0,0 +1,141 @@
+using System;
+
+namespace VMdemo.Core
+{
+    public static class ConfigValidator
+    {
+        public readonly struct DerivedConfig
+        {
+            public DerivedConfig(ulong pageSizeBytes, ulong physicalMemoryBytes, int offsetBits, int vpnBits, ulong frameCount)
+            {
+                PageSizeBytes = pageSizeBytes;
+                PhysicalMemoryBytes = physicalMemoryBytes;
+                OffsetBits = offsetBits;
+                VpnBits = vpnBits;
+                FrameCount = frameCount;
+            }
+
+            public ulong PageSizeBytes { get; }
+            public ulong PhysicalMemoryBytes { get; }
+            public int OffsetBits { get; }
+            public int VpnBits { get; }
+            public ulong FrameCount { get; }
+        }
+
+        public static bool TryValidate(SimulationConfig config, out string errorMessage)
+        {
+            return TryValidateAndBuildDerived(config, out _, out errorMessage);
+        }
+
+        public static bool TryValidateAndBuildDerived(
+            SimulationConfig config,
+            out DerivedConfig derived,
+            out string errorMessage)
+        {
+            derived = default;
+
+            if (config == null)
+            {
+                errorMessage = "配置不能为空。";
+                return false;
+            }
+
+            if (config.vaBits != 32 && config.vaBits != 48 && config.vaBits != 64)
+            {
+                errorMessage = "vaBits 仅支持 32、48、64。";
+                return false;
+            }
+
+            if (config.pageSizeKB <= 0)
+            {
+                errorMessage = "pageSizeKB 必须是正整数。";
+                return false;
+            }
+
+            if (!IsPowerOfTwo((ulong)config.pageSizeKB))
+            {
+                errorMessage = "pageSizeKB 必须是 2 的幂（2^n KB）。";
+                return false;
+            }
+
+            if (config.physicalMemoryMB <= 0)
+            {
+                errorMessage = "physicalMemoryMB 必须是正整数。";
+                return false;
+            }
+
+            if (config.tlbEntries <= 0)
+            {
+                errorMessage = "tlbEntries 必须是正整数。";
+                return false;
+            }
+
+            if (config.accessCount <= 0)
+            {
+                errorMessage = "accessCount 必须是正整数。";
+                return false;
+            }
+
+            if (config.pageFaultPenalty <= 0)
+            {
+                errorMessage = "pageFaultPenalty 必须是正整数。";
+                return false;
+            }
+
+            var pageSizeBytes = config.PageSizeBytes;
+            if (!TryGetLog2(pageSizeBytes, out var offsetBits))
+            {
+                errorMessage = "pageSizeKB 必须对应可计算的 2 的幂字节数。";
+                return false;
+            }
+
+            if (offsetBits >= config.vaBits)
+            {
+                errorMessage =
+                    $"offsetBits 必须小于 vaBits，当前 offsetBits={offsetBits}，vaBits={config.vaBits}。";
+                return false;
+            }
+
+            var frameCount = config.FrameCount;
+            if (frameCount < 1UL)
+            {
+                errorMessage =
+                    $"frameCount 必须 >= 1，当前 frameCount={frameCount}。请增大 physicalMemoryMB 或减小 pageSizeKB。";
+                return false;
+            }
+
+            derived = new DerivedConfig(
+                pageSizeBytes,
+                config.PhysicalMemoryBytes,
+                offsetBits,
+                config.vaBits - offsetBits,
+                frameCount);
+
+            errorMessage = string.Empty;
+            return true;
+        }
+
+        private static bool IsPowerOfTwo(ulong value)
+        {
+            return value != 0UL && (value & (value - 1UL)) == 0UL;
+        }
+
+        private static bool TryGetLog2(ulong value, out int bits)
+        {
+            bits = -1;
+            if (!IsPowerOfTwo(value))
+            {
+                return false;
+            }
+
+            bits = 0;
+            while (value > 1UL)
+            {
+                value >>= 1;
+                bits++;
+            }
+
+            return true;
+        }
+    }
+}
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 278803579202bf144ad186a403dbaed2
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
@@ -0,0 +1,68 @@
+using System;
+
+namespace VMdemo.Core
+{
+    [Serializable]
+    public class SimulationConfig
+    {
+        public int vaBits = 32;
+        public int pageSizeKB = 4;
+        public int physicalMemoryMB = 64;
+        public int tlbEntries = 16;
+        public int accessCount = 100;
+        public int pageFaultPenalty = 100;
+
+        public ulong PageSizeBytes => pageSizeKB > 0 ? (ulong)pageSizeKB * 1024UL : 0UL;
+
+        public ulong PhysicalMemoryBytes => physicalMemoryMB > 0 ? (ulong)physicalMemoryMB * 1024UL * 1024UL : 0UL;
+
+        public int OffsetBits
+        {
+            get
+            {
+                return TryGetLog2(PageSizeBytes, out var bits) ? bits : -1;
+            }
+        }
+
+        public int VpnBits
+        {
+            get
+            {
+                var offsetBits = OffsetBits;
+                return offsetBits >= 0 ? vaBits - offsetBits : -1;
+            }
+        }
+
+        public ulong FrameCount
+        {
+            get
+            {
+                var pageSizeBytes = PageSizeBytes;
+                if (pageSizeBytes == 0UL)
+                {
+                    return 0UL;
+                }
+
+                return PhysicalMemoryBytes / pageSizeBytes;
+            }
+        }
+
+        private static bool TryGetLog2(ulong value, out int bits)
+        {
+            bits = -1;
+            if (value == 0UL || (value & (value - 1UL)) != 0UL)
+            {
+                return false;
+            }
+
+            bits = 0;
+            while (value > 1UL)
+            {
+                value >>= 1;
+                bits++;
+            }
+
+            return true;
+        }
+    }
+}
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 560da4f3bb13de24986a73b585c1ec1f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: c143559c7269dd940b8cb1b43b2d07a5
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
@@ -0,0 +1,28 @@
+using System;
+using VMdemo.Core;
+
+namespace VMdemo.Simulation
+{
+    [Serializable]
+    public class SimulationState
+    {
+        public int CurrentRound { get; set; }
+        public ulong CurrentVirtualAddress { get; set; }
+        public AddressParts CurrentAddressParts { get; set; }
+        public bool IsPageFault { get; set; }
+        public bool IsTlbHit { get; set; }
+        public bool IsPageTableHit { get; set; }
+        public int CurrentCost { get; set; }
+
+        public void Reset()
+        {
+            CurrentRound = 0;
+            CurrentVirtualAddress = 0UL;
+            CurrentAddressParts = AddressParts.Empty;
+            IsPageFault = false;
+            IsTlbHit = false;
+            IsPageTableHit = false;
+            CurrentCost = 0;
+        }
+    }
+}
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 5ab511454f082cd4987e3388c3eee16a
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: a14121217fe28e64f9ddd4fc9f89c32a
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
@@ -0,0 +1,3 @@
+{
+	"name": "VMdemo"
+}
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: baede126690de864e8b4ee808c6a2716
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: