{"id":403,"date":"2011-01-15T10:41:18","date_gmt":"2011-01-15T10:41:18","guid":{"rendered":""},"modified":"2011-11-18T17:12:03","modified_gmt":"2011-11-18T09:12:03","slug":"403","status":"publish","type":"post","link":"http:\/\/zerobox.org\/notes\/403.html","title":{"rendered":"PS2\u952e\u76d8\u4fdd\u62a4\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5"},"content":{"rendered":"<h4>PS2\u952e\u76d8\u4fdd\u62a4\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5<\/h4>\n<pre style=\"width: 100%; word-wrap: break-word;\">By Mix\r\nmix#ph4nt0m.org\r\n\r\n    \u4e3a\u4e86\u4fdd\u969c\u7528\u6237\u8f93\u5165\u5e10\u53f7\u5bc6\u7801\u7684\u5b89\u5168\u6027\uff0c\u5404\u79cd\u5b89\u5168\u63a7\u4ef6\u3001\u5bc6\u7801\u4fdd\u9669\u7bb1\u4ea7\u54c1\u6bd4\u6bd4\u7686\u662f\uff0c\u884d\u751f\r\n\u51fa\u4e86\u5f88\u591a\u4fdd\u62a4\u952e\u76d8\u7684\u65b9\u6cd5\u3002\u5c31\u7b14\u8005\u4e86\u89e3\u7684\uff0c\u7ea0\u7ed3\u5230\u7cfb\u7edf\u5e95\u5c42\u56fd\u5185\u7684\u8d44\u6599\u5927\u90e8\u5206\u90fd\u662f\u843d\u5728\u4e86\u76f4\r\n\u63a5I\/O\u7aef\u53e3\u8bfb\u5199\u4e0a\uff0c\u518d\u5f80\u4e0a\u4e00\u70b9\u5c31\u662fIDT\u4e2d\u65ad\u4e86\uff0c\u672c\u6587\u5c06\u9010\u6b65\u63a2\u8ba8\u548c\u4e2d\u65ad\u6709\u5173\u7684\u653b\u9632\u6280\u672f\uff0c\u8fd9\r\n\u4e5f\u662f\u7b14\u8005\u4e00\u6b21\u5b66\u4e60\u548c\u5c0f\u7ed3\u7684\u8fc7\u7a0b\u3002\r\n\r\n\u4e00\u3001\u57fa\u7840\u77e5\u8bc6\r\n\r\n    \u6709\u4e0d\u5c11\u5185\u5bb9\u5176\u5b9e\u5927\u5b66\u7684\u8bfe\u7a0b\u91cc\u9762\u90fd\u6709\uff0c\u53ea\u662f\u5f53\u65f6\u542c\u8bb2\u7684\u65f6\u5019\u5927\u90fd\u89c9\u5f97\u67af\u71e5\u65e0\u5473\uff0c\u521a\u8d70\u51fa\r\n\u5927\u5b66\u6821\u95e8\u65f6\u66f4\u662f\u89c9\u5f97\u90a3\u65f6\u5019\u5b66\u7684\u90a3\u4e9b\u4e1c\u897f\u5728\u5b9e\u9645\u5de5\u4f5c\u4e2d\u51e0\u4e4e\u5b8c\u5168\u7528\u4e0d\u5230\uff0c\u4f46\u662f\u5728\u6df1\u5165\u5b66\u4e60\u548c\r\n\u7814\u7a76\u8fc7\u7a0b\u4e2d\u624d\u53d1\u73b0\u539f\u6765\u90a3\u4e9b\u4e1c\u897f\u5c45\u7136\u771f\u7684\u9700\u8981\u88ab\u4e86\u89e3\u548c\u638c\u63e1\u3002\r\n\r\n    \u6240\u8c13\u4e2d\u65ad\uff0c\u5c31\u662f\u6307\u5728CPU\u6267\u884c\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u4e86\u67d0\u4e9b\u7a81\u53d1\u4e8b\u4ef6\u65f6\uff0cCPU\u9700\u8981\u505c\u6b62\u5f53\u524d\u7a0b\u5e8f\u8f6c\u53bb\r\n\u5904\u7406\u7a81\u53d1\u4e8b\u4ef6\uff0c\u5904\u7406\u5b8c\u6210\u540e\u8fd4\u56de\u539f\u5904\u7ee7\u7eed\u4e4b\u524d\u7684\u5de5\u4f5c\u3002\u90a3\u4e48\u7cfb\u7edf\u4e2d\u6bcf\u4e2a\u4e2d\u65ad\u5bf9\u5e94\u7684\u54ea\u6bb5\u5904\u7406\r\n\u4ee3\u7801\uff08\u5373\u4e2d\u65ad\u95e8\uff09\uff0c\u5c31\u9700\u8981\u4e00\u4efd\u5bf9\u5e94\u7684\u8868\u4ee5\u4f9b\u67e5\u627e\uff0c\u8fd9\u4e2a\u8868\u88ab\u79f0\u4e3a\u4e2d\u65ad\u63cf\u8ff0\u7b26\u8868Interrupt\r\nDescriptor Table\uff08\u5373IDT\uff09\u3002\r\n\r\n    \u5bf9\u4e8eIDT\u7684\u5b58\u653e\u548c\u4f7f\u7528\uff0c\u6309\u7167\u7a0b\u5e8f\u5458\u7684\u903b\u8f91\u6765\u8bf4\u5c31\u662f\u5728\u4e00\u7247\u8fde\u7eed\u5185\u5b58\u4e2d\u4f9d\u6b21\u5b58\u653e\u77400xFF\r\n\u4e2aP2C_IDTENTRY\u7ed3\u6784\uff0c\u7ed3\u6784\u63cf\u8ff0\u5982\u4e0b\uff1a<\/pre>\n<pre class=\"code\">--code-------------------------------------------------------------------------\r\ntypedef struct P2C_IDT_ENTRY_ {\r\n\t\tP2C_U16 offset_low;\/\/\u4e2d\u65ad\u95e8\u6240\u5728\u5730\u5740\u7684\u5e95\u4f4d\r\n\t\tP2C_U16 selector;\r\n\t\tP2C_U8 reserved;\r\n\t\tP2C_U8 type:4;\r\n\t\tP2C_U8 always0:1;\r\n\t\tP2C_U8 dpl:2;\r\n\t\tP2C_U8 present:1;\r\n\t\tP2C_U16 offset_high; \/\/\u4e2d\u65ad\u95e8\u6240\u5728\u5730\u5740\u7684\u9ad8\u4f4d\r\n} P2C_IDTENTRY, *PP2C_IDTENTRY;\r\n-------------------------------------------------------------------------------<\/pre>\n<pre>\u5728WindowsXP\u9ed8\u8ba4\u7684IDT\u4e2d\uff0c\u7b2c0x93\u4e2a\u7ed3\u6784\u5c31\u662f\u88ab\u7528\u6765\u63cf\u8ff0\u952e\u76d8\u7684\u4e2d\u65ad\u95e8\u3002\u601d\u7ef4\u8fc5\u731b\u7684\u8bfb\r\n\u8005\u80af\u5b9a\u4f1a\u5228\u6839\u95ee\u5e95\u4e86\uff1a\u201c\u90a3\u4e3a\u4ec0\u4e48\u7b2c0x93\u662f\u63cf\u8ff0\u952e\u76d8\u7684\u5462\uff1f\u201d\r\n\r\n    \u56e0\u4e3a\u5728\u786c\u4ef6\u8bbe\u5907\u548cCPU\u4e4b\u95f4\u8fd8\u6709\u4e2a\u8854\u63a5\u8bbe\u5907\uff0c\u53eb\u4e2d\u65ad\u63a7\u5236\u5668\uff0c\u4e13\u95e8\u8d1f\u8d23\u7ba1\u7406IDT\u7684\u586b\u5145\u3001\r\n\u67e5\u627e\u548c\u4fee\u6539\u3002\u8bf7\u5141\u8bb8\u7c98\u8d34\u4e00\u6bb5\u5173\u4e8e\u4e2d\u65ad\u63a7\u5236\u5668\u7684\u7cbe\u786e\u63cf\u8ff0\uff1a<\/pre>\n<pre class=\"refer\">-------------------------------------------------------------------------------\r\n    \u4e2d\u65ad\u63a7\u5236\u5668\u7ecf\u5386\u4e86PIC(Programmable Interrupt Controller\uff0c\u53ef\u7f16\u7a0b\u4e2d\u65ad\u63a7\u5236\u5668)\u548c\r\nAPIC\uff08Advanced Programmable Interrupt Controller\uff0c\u9ad8\u7ea7\u53ef\u7f16\u7a0b\u4e2d\u65ad\u63a7\u5236\u5668\uff09\u4e24\u4e2a\u9636\u6bb5\u3002\r\n\r\n    \u800cAPIC \u53c8\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff0c\u4e00\u4e2a\u79f0\u4e3aLAPIC\uff08Local APIC\uff0c\u672c\u5730\u9ad8\u7ea7\u4e2d\u65ad\u63a7\u5236\u5668\uff09\uff0c\u4e00\u4e2a\r\n\u79f0\u4e3aIOAPIC\uff08I\/O APCI\uff0cI\/O \u9ad8\u7ea7\u4e2d\u65ad\u63a7\u5236\u5668\uff09\r\n-------------------------------------------------------------------------------<\/pre>\n<pre>\u73b0\u5728\u7684\u7535\u8111\u57fa\u672c\u90fd\u662f\u4f7f\u7528APIC\u6765\u7ba1\u7406\u4e2d\u65ad\u4e86\uff0c\u66f4\u51c6\u786e\u7684\u8bf4\u662f\u901a\u8fc7IOAPIC\u7684\u63a7\u5236\u5c31\u53ef\u4ee5\u628a\r\n\u952e\u76d8\u4e2d\u65ad\u5b9a\u4f4d\u5230\u7b2c0x93\u53f7\u4e2d\u65ad\u4e0a\u53bb\u3002\u8fd9\u91cc\u8fd8\u6709\u4e2a\u786c\u4ef6IRQ\u7684\u77e5\u8bc6\u70b9\uff0c\u7740\u6025\u7684\u540c\u5b66\u8bf7\u81ea\u884c\u767e\u5ea6\uff0c\r\n\u4e0d\u7740\u6025\u7684\u540c\u5b66\u6682\u65f6\u5148\u7406\u89e3\u4e3a\u4e00\u4e2a\u786c\u4ef6\u8bbe\u5907\u5bf9\u5e94\u4e00\u4e2aIRQ\u8d44\u6e90\uff0c\u6bd4\u5982\u952e\u76d8\u9ed8\u8ba4\u88ab\u5206\u914d\u5230IRQ1\uff0c\r\n\u5728\u8bbe\u5907\u7ba1\u7406\u5668\u7684\u952e\u76d8\u9a71\u52a8\u8d44\u6e90\u5c5e\u6027\u9875\u91cc\u9762\u53ef\u4ee5\u627e\u5f97\u5230\uff0c\u952e\u76d8\u5bf9\u5e94\u7684I\/O\u7aef\u53e3\u53f760\u300164\u4e5f\u53ef\u4ee5\r\n\u5728\u8fd9\u91cc\u88ab\u627e\u5230\u3002\r\n\r\n\u4e8c\u3001\u5e38\u89c1\u6280\u672f\u65b9\u6cd5\r\n\r\n    \u6709\u4e86\u7b2c\u4e00\u7ae0\u7684\u57fa\u672c\u77e5\u8bc6\uff0c\u5c31\u6765\u770b\u4e0b\u5e38\u89c1\u7684\u4e24\u79cdPS2\u952e\u76d8\u4e2d\u65ad\u653b\u9632\u6280\u672f\u3002\u56e0\u4e3a\u8fd9\u4e24\u79cd\u65b9\u6cd5\r\n\u7f51\u4e0a\u90fd\u6709\u4ee3\u7801\uff0c\u800c\u4e14\u300a\u5bd2\u6c5f\u72ec\u9493-\u5185\u6838\u5b89\u5168\u7f16\u7a0b\u300b\u4e00\u4e66\u4e2d\u4e5f\u6709\u4e0d\u5c11\u8bf4\u660e\uff0c\u6240\u4ee5\u8fd9\u91cc\u53ea\u662f\u7b80\u5355\r\n\u63cf\u8ff0\u3002\u53e6\u5916\uff0c\u7b14\u8005\u7684\u6d4b\u8bd5\u4ee3\u7801\u4e5f\u662f\u57fa\u4e8e\u6b64\u4e66\u968f\u5e26\u4ee3\u7801\u8fdb\u884c\u7684\u4fee\u6539\uff0c\u5728\u8fd9\u91cc\u8868\u793a\u611f\u8c22\u3002\r\n\r\n    *\u66ff\u63620x93\u4e2d\u65ad\u95e8\u5904\u7406\u51fd\u6570\u5730\u5740\r\n\r\n    \u65e2\u7136IDT\u4e2d\u6709\u4fdd\u5b58\u4e2d\u65ad\u95e8\u7684\u5165\u53e3\u5730\u5740\uff0c\u90a3\u4e48\u76f4\u63a5\u4fee\u6539\u6389\u8fd9\u4e2a\u503c\u540e\uff0c\u5f53\u65b0\u7684\u952e\u76d8\u4e2d\u65ad\u4ea7\u751f\uff0c\r\nCPU\u5c06\u8df3\u8f6c\u5230\u65b0\u7684\u4e2d\u65ad\u95e8\u5904\u7406\u51fd\u6570\u53bb\u6267\u884c\u952e\u76d8\u952e\u503c\u7684\u6355\u83b7\u548c\u4f20\u9012\uff0c\u8fd9\u6837\u5c31\u6539\u53d8\u4e86\u539f\u7cfb\u7edf\u6267\u884c\r\n\u6d41\u7a0b\u3002\r\n\r\n    *IOAPIC\u91cd\u5b9a\u4f4d\u4e2d\u65ad\u53f7\r\n\r\n    \u524d\u9762\u8bf4\u4e86\u7cfb\u7edf\u4e2d\u67090xFF\u4e2a\u4e2d\u65ad\u63cf\u8ff0\u7ed3\u6784\uff0c\u8fd9\u5176\u4e2d\u603b\u4f1a\u6709\u9884\u7559\u7684\u3001\u7a7a\u95f2\u7684\u3001\u6ca1\u7528\u7684\uff0c\u62a2\u4e00\r\n\u4e2a\u8fc7\u6765\u800d\u800d\u5457\u3002\u7136\u540e\u901a\u8fc7IOAPIC\u4fee\u6539\u952e\u76d8\u786c\u4ef6IRQ\u548c\u7b2c0x93\u4e2a\u4e2d\u65ad\u63cf\u8ff0\u7ed3\u6784\u7684\u5bf9\u5e94\u5173\u7cfb\uff0c\u6307\r\n\u5230\u521a\u62a2\u8fc7\u6765\u7684\u90a3\u4e2a\u4e2d\u65ad\u63cf\u8ff0\u7ed3\u6784\uff0c\u4ece\u800c\u6539\u53d8\u4e86\u539f\u6709\u7684\u7cfb\u7edf\u6d41\u7a0b\uff0c\u8fbe\u5230\u4fdd\u62a4\u6216\u653b\u51fb\u7684\u76ee\u7684\u3002\r\n\r\n    \u7740\u91cd\u8bf4\u4e0b\u7b2c\u4e8c\u79cd\u65b9\u6cd5\uff0c\u5bf9IOAPIC\u9ad8\u7ea7\u4e2d\u65ad\u63a7\u5236\u5668\u7684\u7406\u89e3\u8d34\u6bb5\u6587\u5b57\u6765\u63cf\u8ff0\uff1a<\/pre>\n<pre class=\"refer\">-------------------------------------------------------------------------------\r\n    IOAPIC\u91cd\u5b9a\u4f4d\u8868\u8868\u793a\u6bcf\u4e2aIRQ\u88ab\u91cd\u5b9a\u4f4d\u5230\u54ea\u4e2a\u4e2d\u65ad\u5904\u7406\u51fd\u6570\u3002\u8fd9\u4e2a\u8868\u4e00\u5171\u670924\u9879\uff0c\u6bcf\u4e00\r\n\u9879\u7528\u4e24\u4e2aIOAPIC\u5bc4\u5b58\u5668\u6765\u5b58\u53d6\uff0864\u4f4d\uff09\u3002\r\n\r\n    \u8fd9\u4e2a\u8868\u7684\u5bc4\u5b58\u5668\u504f\u79fb\u4ece0x10\u5f00\u59cb\uff0c\u4e00\u76f4\u52300x3f\u4e3a\u6b62\uff0c\u4e00\u517148\u4e2a\u3002IRQ1\u5bf9\u5e94\u7684\u8868\u9879\u6240\u5728\u7684\r\n\u5bc4\u5b58\u5668\u504f\u79fb\u4e3a0x12\u548c0x13\uff0c\u800c\u4e2d\u65ad\u53f7\u4fdd\u5b58\u57280x12\u5bc4\u5b58\u5668\u7684\u5e958\u4f4d\uff081\u4e2a\u5b57\u8282\uff09\uff0c\u4fee\u6539\u8fd9\u4e2a\u5b57\u8282\r\n\u5c31\u53ef\u4ee5\u66ff\u6362\u6210\u5176\u4ed6\u4e2d\u65ad\u53f7\u4e86\u3002\r\n-------------------------------------------------------------------------------<\/pre>\n<pre>\u8fd9\u6837\u7684\u63cf\u8ff0\u6709\u7f16\u7a0b\u7ecf\u9a8c\u7684\u8bfb\u8005\u5e94\u8be5\u5f88\u5bb9\u6613\u7406\u89e3\uff0c\u4e0d\u7406\u89e3\u7684\u53ef\u4ee5\u8fd9\u6837\u6765\u7406\u89e3\uff1a\u5b9e\u9645\u4e0a\uff0c\u6839\r\n\u636eIntel\u7684\u89c4\u8303\u6807\u51c6\uff0cIOAPIC\u8bbe\u5907\u5c31\u662f82093AA\u82af\u7247\uff0c\u641e\u8fc7\u5355\u7247\u673a\u5427\uff1f\u4e00\u5806\u5806\u7684\u5f15\u811a\u8fd8\u8bb0\u5f97\u5427\uff1f\r\n\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c82093\u7684\u8fd9\u4e9b\u5f15\u811a\u88ab\u7cfb\u7edf\u6620\u5c04\u5230\u4e86\u5185\u5b58\u5730\u57400xfec00000\u4e0a\uff08\u5f62\u6210\u4e86\u4e00\u5f20\u8868\uff09\uff0c\r\n\u5bf9\u8fd9\u4e2a\u5185\u5b58\u5730\u5740\u8fdb\u884c\u8d4b\u503c\uff08\u53ca\u4fee\u6539\u8868\u5185\u5185\u5bb9\uff09\u5c31\u80fd\u591f\u5b8c\u6210\u5bf9\u82af\u7247\u7684\u63a7\u5236\u3002\u53c2\u7167intel-82093-\r\napic.pdf\u89c4\u8303\u6807\u51c6\u7b2c3.2.4\u8282\u5185\u5bb9\u7ed3\u5408\u4e0a\u9762\u7684\u63cf\u8ff0\uff0c\u53ef\u4ee5\u5f97\u51fa\u4e24\u6761\u7ed3\u8bba\uff1a\r\n\r\n1\u3001\u8868\u5185\u504f\u79fb12-13h(IOREDTBL1)\u7684\u5185\u5bb9\uff0c\u5c31\u662f\u7528\u6765\u63a7\u5236\u952e\u76d8IRQ1\u548c\u952e\u76d8\u4e2d\u65ad\u7684\u5bf9\u5e94\u5173\u7cfb\uff1b\r\n2\u3001\u8868\u5185\u504f\u79fb12-13h\u7684\u6570\u636e\u5185\u5bb9\u4e2d\uff0c\u7b2c7:0\uff08\u53ca0\u52307\uff09\u5e958\u4f4d\u5c31\u662f\u5b58\u653e\u7684\u5bf9\u5e94\u4e2d\u65ad\u53f7\uff1b\r\n\r\n    \u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c12-13h\u4f4e8\u4f4d\u8bfb\u51fa\u6765\u7684\u503c\u662f0x93\uff0c\u8fde\u8d2f\u8d77\u6765\u770b\u6574\u4e2a\u8fc7\u7a0b\uff1a<\/pre>\n<p><img decoding=\"async\" src=\"file:\/\/\/C:\/Documents%20and%20Settings\/Administrator\/\u684c\u9762\/PS2\u952e\u76d8\u4fdd\u62a4\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5.files\/0x03_1.gif\" alt=\"\" \/><\/p>\n<pre>\u4e0a\u8ff0\u4e24\u79cd\u5e38\u89c1\u653b\u9632\u65b9\u6cd5\uff0c\u5c31\u662f\u5728\u7b2c2\u6b65\u548c\u7b2c3\u6b65\u4e0a\u505a\u4e86\u624b\u811a\uff0c\u6539\u53d8\u4e86\u539f\u6709\u6d41\u7a0b\u3002\u8eb2\u61d2\u8d34\u6bb5\r\n\u4ee3\u7801\u6765\u8865\u5145\u4e2a\u8bf4\u660e\uff0c\u7ecf\u8fc7\u8fd9\u4e24\u79cd\u65b9\u6cd5\u5904\u7406\u8fc7\u540e\uff0c\u90fd\u53ef\u4ee5\u8fd9\u6837\u5199\u4e2d\u65ad\u95e8\u7684\u6d4b\u8bd5\u4ee3\u7801\uff1a<\/pre>\n<pre class=\"code\">--code-------------------------------------------------------------------------\r\n__declspec(naked) p2cInterruptProc()\r\n{\r\n\t__asm\r\n\t{\r\n\t\tpushad\t\t\t\t\t\/\/ \u4fdd\u5b58\u6240\u6709\u7684\u901a\u7528\u5bc4\u5b58\u5668\r\n\t\tpushfd\t\t\t\t\t\/\/ \u4fdd\u5b58\u6807\u5fd7\u5bc4\u5b58\u5668\r\n\t\tcall p2cUserFilter\t\t\t\/\/\u8c03\u4e00\u4e2a\u6211\u4eec\u81ea\u5df1\u7684\u51fd\u6570\u3002\r\n\t\t\/\/\u8fd9\u4e2a\u51fd\u6570\u5c06\u5b9e\u73b0\u4e00\u4e9b\u6211\u4eec\u81ea\u5df1\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u8bfb\u952e\u76d8I\/O\u7aef\u53e3\r\n\t\tpopfd\t\t\t\t\t\/\/ \u6062\u590d\u6807\u5fd7\u5bc4\u5b58\u5668\r\n\t\tpopad\t\t\t\t\t\/\/ \u6062\u590d\u901a\u7528\u5bc4\u5b58\u5668\r\n\t\tjmp\tg_p2c_old\t\t\/\/ \u8df3\u5230\u539f\u6765\u7684\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\r\n\t}\r\n}\r\n-------------------------------------------------------------------------------<\/pre>\n<pre>\u4e09\u3001\u53e6\u4e00\u79cd\u65b9\u6cd5\u7684\u6280\u672f\u7ec6\u8282\r\n\r\n    \u54ce\uff0c\u94fa\u57ab\u6765\u94fa\u57ab\u53bb\uff0c\u7ec8\u4e8e\u5199\u5230\u8fd9\u91cc\u4e86\uff0c\u5176\u5b9e\u8fd9\u79cd\u65b9\u6cd5\u5df2\u7ecf\u6709\u5546\u4e1a\u7ea7\u5e94\u7528\u4ea7\u54c1\u5728\u4f7f\u7528\u4e86\uff0c\r\n\u4f46\u56fd\u5185\u8d44\u6599\u4e2d\u5e94\u8be5\u90fd\u8fd8\u6ca1\u6709\u8bf4\u8fc7\uff0c\u6240\u4ee5\u5728\u8fd9\u91cc\u79d1\u666e\u4e00\u4e0b\uff0c\u5e0c\u671b\u4e0d\u8981\u88abBS\u548c\u4e22\u9e21\u86cb\uff0c\u5475\u5475\u3002\r\n\r\n3.1 \u7406\u8bba\u77e5\u8bc6\u4e4bPIC\u548cAPIC\r\n\r\n    \u867d\u7136\u5df2\u7ecf\u662fAPIC\u7684\u65f6\u4ee3\u4e86\uff0c\u4f46\u662f\u57fa\u672c\u4e0a\u8ba1\u7b97\u673a\u4e2dPIC\u548cAPIC\u662f\u5171\u5b58\u7684\uff0c\u57fa\u672c\u7ed3\u6784\u5982\u4e0b\u56fe\r\n\u6240\u793a\uff1a<\/pre>\n<p><img decoding=\"async\" src=\"file:\/\/\/C:\/Documents%20and%20Settings\/Administrator\/\u684c\u9762\/PS2\u952e\u76d8\u4fdd\u62a4\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5.files\/0x03_2.jpg\" alt=\"\" \/><\/p>\n<pre>\u53ef\u89c1APIC\u548cPIC\u90fd\u53ef\u4ee5\u63a5\u6536\u4e2d\u65ad\uff0c\u5e76\u63d0\u4ea4\u7ed9CPU\u6838\u5fc3\u5904\u7406\uff0c\u53ea\u662f\u4e2d\u65ad\u5fc5\u987b\u5148\u7ecf\u8fc7APIC\u624d\u80fd\r\n\u5230PIC\uff0c\u800c\u4e14PIC\u7684\u4e2d\u65ad\u8bf7\u6c42\u53ea\u4ea4\u7ed9CPU\u7b2c\u4e00\u4e2a\u6838\u5fc3\u5904\u7406\u3002\r\n\r\n    \u4e3a\u4e86\u89c4\u8303\u4f7f\u7528\uff0cMP spec\u4e3aPIC\u548cAPIC\u5171\u5b58\u7684\u5e73\u53f0\u89c4\u5b9a\u4e86\u4e09\u79cd\u6a21\u5f0f\uff1aPIC mode\u3001Virtual\r\nWire Mode\u3001Symmetric I\/O Mode\u3002\u5176\u4e2d\u5f00\u542f\u4e86Virtual Wire Mode\u6a21\u5f0f\u540e\u7684\u4e2d\u65ad\u5904\u7406\u6d41\u7a0b\uff0c\r\n\u53ef\u7528\u4e0b\u56fe\u6765\u63cf\u8ff0\uff1a<\/pre>\n<p><img decoding=\"async\" src=\"file:\/\/\/C:\/Documents%20and%20Settings\/Administrator\/\u684c\u9762\/PS2\u952e\u76d8\u4fdd\u62a4\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5.files\/0x03_3.jpg\" alt=\"\" \/><\/p>\n<pre>\u6ce8\u610f\u56fe\u4e2d\u865a\u7ebf\u7684\u8def\u7ebf\uff0c\u4e2d\u65ad\u4ea7\u751f\u4ee5\u540e\u53ea\u901a\u8fc78259A\u76f4\u63a5\u8fdb\u5165\u4e86CPU1\u6838\u8fdb\u884c\u5904\u7406\uff0c\u5b8c\u5168\u6487\r\n\u5f00\u4e86I\/O APIC\u7684\u4e2d\u65ad\u7ba1\u7406\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\u6839\u672c\u5c31\u4e0d\u4f1a\u6267\u884c\u4e4b\u524d\u7684\u952e\u76d8\u4e2d\u65ad\u5e38\u89c4\u6d41\r\n\u7a0b\uff0c0x93\u53f7\u4e2d\u65ad\u95e8\u6d3e\u9063\u5730\u5740\u4fee\u6539\u548cIOAPIC\u91cd\u5b9a\u5411IRQ\u548c\u4e2d\u65ad\u53f7\u7684\u5173\u8054\uff0c\u90fd\u4e0d\u4f1a\u5f71\u54cd\u5230\u4e2d\u65ad\u7684\r\n\u4ea7\u751f\u548c\u5904\u7406\u8fc7\u7a0b\uff0c\u5b8c\u5168\u542f\u7528\u4e00\u6761\u65b0\u7684\u6267\u884c\u8def\u7ebf\u6765\u5b8c\u6210\u5bf9\u952e\u76d8\u4e2d\u65ad\u7684\u5904\u7406\u3002\r\n\r\n    \u800c\u4e14\uff0c\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\u7684\u53e6\u4e00\u4e2a\u597d\u5904\u662f\uff0c\u53ef\u4ee5\u65e0\u89c6\u591a\u6838CPU\u7684\u5b58\u5728\uff0c\u56e0\u4e3a8259A\u53ea\u5bf9CPU1\u6838\r\n\u8d1f\u8d23\uff0c\u5176\u4ed6\u6838\u5fc3\u90fd\u4e0d\u53c2\u4e0e\u8fd9\u4e2a\u4e2d\u65ad\u7684\u5904\u7406\u8fc7\u7a0b\u3002\u8fd9\u4e24\u4e2a\u660e\u663e\u7279\u70b9\u5bf9\u4e8e\u952e\u76d8\u4fdd\u62a4\u6765\u8bf4\uff0c\u65e0\u7591\u662f\r\n\u597d\u5904\u5927\u5927\u7684\u3002\r\n\r\n3.2 \u8bbe\u7f6e\u5141\u8bb8Virtual Wire Mode\u6a21\u5f0f\r\n\r\n    \u6839\u636e\u8d44\u6599\u663e\u793a\uff0c82093AA\u82af\u7247\u7684\u7ba1\u811a\u5fc5\u987b\u914d\u7f6e\u6210ExtINT\u6a21\u5f0f\u624d\u80fd\u591f\u6253\u5f00\u4f7f\u7528Virtual Wire\r\nMode\u6a21\u5f0f\uff0c\u8fd9\u662f\u6807\u51c6\u89c4\u8303\u3002\u8fd8\u8bb0\u5f97\u524d\u9762\u8bf4\u768482093AA\u82af\u7247\u5728\u7269\u7406\u5185\u5b580xfec00000\u4e0a\u90a3\u8868\u5185\u504f\r\n\u79fb12-13h\u7684\u6570\u636e\u5185\u5bb9\u5417\uff0c\u524d\u9762\u53ea\u8bf4\u4e86\u672b\u5c3e\u76848\u4f4d\uff0c\u770b\u770b\u5176\u4ed6\u4f4d\u662f\u5e72\u4ec0\u4e48\u7684\u3002\r\n\r\n    \u7b2c10:8\u4f4d\uff08\u4e5f\u5c31\u662f8\u523011\u4f4d\uff09\uff0c\u540d\u4e3aDelivery Mode (DELMOD)\u2014R\/W\uff0c\u5982\u679c\u8bbe\u7f6e\u4e3a111\u5219\r\n\u8868\u793a\u7ba1\u811a\u4f7f\u7528ExtINT\u6a21\u5f0f\uff0c\u8be6\u7ec6\u82f1\u6587\u63cf\u8ff0\u5982\u4e0b\uff1a<\/pre>\n<pre class=\"refer\">-------------------------------------------------------------------------------\r\n111 ExtINT Deliver the signal to the INTR signal of all processor cores listed\r\nin the destination as an interrupt that originated in an externally connected\r\n(8259A-compatible) interrupt controller. The INTA cycle that corresponds to this\r\nExtINT delivery is routed to the external controller that is expected to supply\r\nthe vector. A Delivery Mode of \"ExtINT\" requires an edge trigger mode.\r\n-------------------------------------------------------------------------------<\/pre>\n<pre>\u7f16\u7a0b\u4fee\u6539\u952e\u76d8\u8d44\u6e90IRQ1\u6240\u5bf9\u5e94\u76840xfec00012-0xfec00013h\u5185\u5bb9\u7684\u7b2c8\u5230\u7b2c11\u4f4d\uff0c\u5c06\u503c\u6539\r\n\u4e3a111\u542f\u7528ExtINT\uff0c\u5c31\u6210\u529f\u5f00\u542f\u4e86Virtual Wire Mode\u6a21\u5f0f\u3002\u63a5\u4e0b\u6765\uff0c\u518d\u770b\u5bf9PIC\u7684\u5904\u7406\uff0c\u4e5f\r\n\u5c31\u662f\u9700\u8981\u5bf98259A\u82af\u7247\u8fdb\u884c\u6fc0\u6d3b\u64cd\u4f5c\u3002\r\n\r\n3.3 8259A\u82af\u7247\u7f16\u7a0b\r\n\r\n    \u548c\u4e4b\u524d\u8bf4\u768482093AA\u82af\u7247\u7565\u6709\u4e0d\u540c\uff0c\u5bf9\u8fd9\u4e2a\u82af\u7247\u7684\u63a7\u5236\u548c\u64cd\u4f5c\uff0c\u662f\u901a\u8fc7I\/O\u7aef\u53e3\u8bfb\u5199\u6765\u5b8c\r\n\u6210\u7684\u3002\u5148\u6765\u770b\u770b8259A\u957f\u5565\u6837\u5b50\uff1a<\/pre>\n<p><img decoding=\"async\" src=\"file:\/\/\/C:\/Documents%20and%20Settings\/Administrator\/\u684c\u9762\/PS2\u952e\u76d8\u4fdd\u62a4\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5.files\/0x03_4.jpg\" alt=\"\" \/><\/p>\n<pre>\u73b0\u5728\uff0c\u6709\u6ca1\u6709\u56de\u5230\u4e86\u5927\u5b66\u7684\u611f\u89c9\uff0c\u6ca1\u9519\uff01\u8fd9\u5c31\u662f\u5927\u5b66\u91cc\u9762\u7ecf\u5e38\u505a\u5355\u7247\u673a\u5b9e\u9a8c\u554a\u641e\u6765\u641e\u53bb\r\n\u7684\u90a3\u7c7b\u4e1c\u897f\uff0c\u53ea\u4e0d\u8fc7\u539f\u6765\u662f\u5728\u6a21\u62df\u73af\u5883\u4e0b\u7f16\u7a0b\uff0c\u73b0\u5728\u6362\u5230\u8ba1\u7b97\u673a\u4e0a\u6765\u4e86\uff0c\u6cea\u5954\u2026\u2026\u53c2\u8003\u4e86\u4e9b\r\n\u8d44\u6599\uff0c\u6709\u4e86\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/pre>\n<pre class=\"code\">--code-------------------------------------------------------------------------\r\ng_idle_id--;\/\/\u4e8b\u5148\u62a2\u7684\u4e00\u4e2a\u7a7a\u95f2IDT\u53f7\r\n\r\n\/\/\u5173\u4e2d\u65ad\r\n__asm cli\r\n\r\n\/\/ \u53d1\u9001 ICW1 : \u4f7f\u7528 ICW4\uff0c\u7ea7\u8054\u5de5\u4f5c\r\n__asm mov al , 0x11\r\n__asm out 0x20 , al\r\n__asm out 0xa0 , al\r\n\/\/ \u53d1\u9001 ICW2\uff0c\u4e2d\u65ad\u8d77\u59cb\u53f7\u4eceg_idle_id\u5f00\u59cb\uff08\u7b2c\u4e00\u7247\uff09\u53cag_idle_id+8\u5f00\u59cb\uff08\u7b2c\u4e8c\u7247\uff09\r\n__asm mov al , g_idle_id\r\n__asm out 0x21 , al\r\ng_idle_id += 8;\r\n__asm mov al , g_idle_id\r\n__asm out 0xa1 , al\r\n\/\/ \u53d1\u9001 ICW3\r\n__asm mov al , 0x4\r\n__asm out 0x21 , al\r\n__asm mov al , 0x2\r\n__asm out 0xa1 , al\r\n\/\/ \u53d1\u9001 ICW4\r\n__asm mov al , 0x1\r\n__asm out 0x21 , al\r\n__asm out 0xa1 , al\r\n\/\/ \u8bbe\u7f6e\u4e2d\u65ad\u5c4f\u853d\u4f4d OCW1 \uff0c\u5c4f\u853d\u6240\u6709\u4e2d\u65ad\u8bf7\u6c42\r\n__asm mov al , 0xff\r\n__asm out 0x21 , al\r\n__asm out 0xa1 , al\r\n\r\n\/\/\u8bb8\u53ef\u952e\u76d8\u4e2d\u65ad\uff0c\u4e5f\u53ea\u8bb8\u53ef\u5904\u7406\u6b64\u4e2d\u65ad\r\n__asm mov al , 0xfd\r\n__asm out 0x21 , al\r\n\/\/\u5f00\u4e2d\u65ad\r\n__asm sti\r\n\r\ng_idle_id -= 8;\r\ng_idle_id++;\r\n-------------------------------------------------------------------------------<\/pre>\n<pre>\u5176\u4e2d\u7684g_idle_id\u662f\u62a2\u8fc7\u6765\u7528\u7684\u4e00\u4e2a\u65b0\u6ce8\u518c\u7684IDT\u9879\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\u8fd9\u4e2ag_idle_id\u7684\u503c\r\n\u768416\u8fdb\u5236\u4e2a\u4f4d\u6570\u9700\u8981\u7b49\u4e8e9\uff01\r\n\r\n    \u5982\u56fe3.3\u6240\u793a8259A\u768416\u4e2a\u5f15\u811a\u5bf9\u5e94IRQ0~IRQ15\uff0c\u800c\u8fd916\u4e2aIRQ\u8d44\u6e90\u9700\u8981\u5bf9\u5e94\u523016\u4e2aIDT\u7ed3\r\n\u6784\u4e0a\u53bb\uff08\u867d\u7136\u53ea\u9700\u8981\u7528\u5176\u4e2d\u7684\u4e00\u4e2a\uff0c\u53ca\u952e\u76d8\u7684\uff09\uff0c\u800c\u4e14\u8d77\u59cb\u7684IDT\u53f716\u8fdb\u5236\u4e2a\u4f4d\u6570\u9700\u8981\u662f8\uff0c\r\n\u4e5f\u5c31\u662fIRQ0\u5bf9\u5e948\u3001IRQ1\u5bf9\u5e949\u4f9d\u6b21\u7c7b\u63a8\uff0c\u952e\u76d8\u521a\u597d\u88ab\u9ed8\u8ba4\u5206\u914dIRQ1\uff0c\u5bf9\u5e94\u7684\u662f9\u3002\r\n\r\n    \u4f46\u662f\u4e3a\u4ec0\u4e48\u8d77\u59cb\u7684ID\u503c\u9700\u8981\u6ee1\u8db316\u8fdb\u5236\u4e2a\u4f4d\u6570\u4e3a8\u5462\uff1f\u53ef\u80fd\u82f1\u6587\u8d44\u6599\u91cc\u9762\u6709\u8bf4\u660e\uff0c\u61d2\u5f97\r\n\u770b\u4e86\u4e5f\u61d2\u5f97\u9a8c\u8bc1\u4e86\u2026\u2026\u548c\u8fd9\u4e2a\u7ecf\u9a8c\u503c\u76f8\u5173\u7684\u4e00\u6bb5\u4e2d\u6587\u63cf\u8ff0\u5982\u4e0b\uff1a<\/pre>\n<pre class=\"refer\">-------------------------------------------------------------------------------\r\n    \u5728BIOS\u521d\u59cb\u5316PIC\u7684\u65f6\u5019\uff0cIRQ0~IRQ7\u88ab\u5206\u914d\u4e860x8~0xF\u7684\u4e2d\u65ad\u53f7\uff0c\u7136\u800c\u5f53CPU\u8f6c\u5230\u4fdd\u62a4\u6a21\r\n\u5f0f\u4e0b\u5de5\u4f5c\u7684\u65f6\u5019\uff0c0x8~0xF\u7684\u4e2d\u65ad\u53f7\u5374\u88abCPU\u7528\u6765\u5904\u7406\u9519\u8bef\uff01\u4e00\u70b9\u4e0d\u5947\u602a\uff0cCPU\u662fIntel\u751f\u4ea7\u7684\uff0c\r\n\u800c\u8ba1\u7b97\u673a\u5374\u662f\u7531IBM\u751f\u4ea7\u7684\uff0c\u4e24\u5bb6\u516c\u53f8\u6ca1\u6709\u534f\u8c03\u597d:(\u3002\r\n-------------------------------------------------------------------------------<\/pre>\n<pre>\u81f3\u6b64\uff0c\u7ecf\u8fc73.2\u548c3.3\u8282\u7684\u7f16\u7a0b\u8bbe\u7f6e\uff0c\u5c31\u80fd\u591f\u5b9e\u73b03.1\u8282\u4e2d\u63cf\u8ff0\u7684\u5de5\u4f5c\u6d41\u7a0b\u3002\r\n\r\n\u56db\u3001\u540e\u8bb0\r\n\r\n    \u901a\u8fc7IDA\u8c03\u8bd5\u548c\u6587\u4e2d\u6240\u5e26\u7684\u5173\u952e\u4ee3\u7801\uff0c\u5c31\u80fd\u591f\u9a8c\u8bc1\u8fd9\u4e2a\u952e\u76d8\u4fdd\u62a4\u6280\u672f\u7684\u53ef\u884c\u6027\uff0c\u4f46\u662f\u8981\r\n\u505a\u5230\u5546\u4e1a\u5e94\u7528\uff0c\u8fd8\u8981\u7ecf\u5386\u5f88\u591a\u78e8\u96be\uff0c\u6bd4\u5982\u63a5\u6536\u5230\u4e2d\u65ad\u8bf7\u6c42\u540e\u7684\u5904\u7406\u5e94\u8be5\u600e\u4e48\u505a\u3002\u800c\u4e14\uff0c\u8fd9\u79cd\r\n\u6280\u672f\u4e5f\u65e0\u6cd5\u5bf9\u6297\u76f4\u63a5IO\u7aef\u53e3\u8bfb\u5199\u7684\u952e\u76d8\u55c5\u63a2\uff0c\u8fd8\u9700\u8981\u8003\u8651\u4f7f\u7528\u865a\u62df\u6309\u952e\u52a0\u6270\u7b49\u7b49\u3002\r\n\r\n    \u53e6\u5916\u5bf9\u4e8e8259A\u7684\u63a7\u5236\uff0c\u7b14\u8005\u6ca1\u6709\u627e\u5230\u65b9\u6cd5\u4ece\u82af\u7247\u5185\u8bfb\u51fa\u4e4b\u524d\u5df2\u8bbe\u7f6e\u7684\u4e2d\u65ad\u53f7\uff0c\u5982\u679c\u771f\r\n\u662f\u6ca1\u6709\u8fd9\u6837\u7684\u529f\u80fd\uff0c\u90a3\u5bf9\u952e\u76d8\u4fdd\u62a4\u6765\u8bf4\u8fd9\u53c8\u4f1a\u662f\u4e00\u4e2a\u4f18\u70b9\u3002\u6700\u540e\uff0c\u7531\u4e8e\u5bf9\u8fd9\u5757\u5185\u5bb9\u7814\u7a76\u7684\u65f6\r\n\u95f4\u4e0d\u957f\uff0c\u6587\u4e2d\u6b20\u7f3a\u4e4b\u5904\u8fd8\u8bf7\u5305\u6db5\u548c\u6307\u6559\u3002\r\n\r\n\u4e94\u3001\u53c2\u8003\u6587\u732e\r\n\r\n\u300aMicrosoft Windows Internals\u300b\r\n\u300aLinux\u8bbe\u5907\u9a71\u52a8\u5f00\u53d1\u8be6\u89e3\u300b\r\n\u300aintel-82093-apic\u300b\r\n\u300aintel-8259a-pic\u300b\r\n\u300aInterrupt in Linux\uff08\u786c\u4ef6\u7bc7\uff09\u300b\r\n\u300a\u4fdd\u62a4\u6a21\u5f0f\u4e0b\u76848259A\u82af\u7247\u7f16\u7a0b\u53ca\u4e2d\u65ad\u5904\u7406\u63a2\u7a76\u300b\r\n\u300a\u5bd2\u6c5f\u72ec\u9493-\u5185\u6838\u5b89\u5168\u7f16\u7a0b\u300b<\/pre>\n<p><a href=\"http:\/\/www.80vul.com\/webzine_0x05\/attachment\/PS2\u952e\u76d8\u4fdd\u62a4\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5.rar\">\u9644\u4ef6\u4e0b\u8f7d<\/a><\/p>\n<pre>-EOF-<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>PS2\u952e\u76d8\u4fdd\u62a4\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5 By Mix mix#ph4nt0m.org \u4e3a\u4e86\u4fdd &hellip;<\/p>\n<p class=\"read-more\"><a href=\"http:\/\/zerobox.org\/notes\/403.html\">\u7ee7\u7eed\u9605\u8bfb &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[161],"class_list":["post-403","post","type-post","status-publish","format-standard","hentry","tag-ps2"],"views":869,"_links":{"self":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts\/403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/comments?post=403"}],"version-history":[{"count":0,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts\/403\/revisions"}],"wp:attachment":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/media?parent=403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/categories?post=403"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/tags?post=403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}