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\"\"<\/figure>\n\n\n\n

1\u3001SEC \u5b89\u5168\u9a8c\u8bc1<\/h3>\n\n\n\n

SEC\uff08Security Phase\uff09\u9636\u6bb5\u662f\u5e73\u53f0\u521d\u59cb\u5316\u7684\u7b2c\u4e00\u4e2a\u9636\u6bb5\uff0c\u8ba1\u7b97\u673a\u7cfb\u7edf\u52a0\u7535\u540e\u8fdb\u5165\u8fd9\u4e2a\u9636\u6bb5\u3002<\/p>\n\n\n\n

1\uff09\u63a5\u6536\u5e76\u5904\u7406\u7cfb\u7edf\u542f\u52a8\u548c\u91cd\u542f\u4fe1\u53f7\uff1a\u7cfb\u7edf\u52a0\u70b9\u4fe1\u53f7\u3001\u7cfb\u7edf\u91cd\u542f\u4fe1\u53f7\u3001\u7cfb\u7edf\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u7684\u4e25\u91cd\u5f02\u5e38\u4fe1\u53f7\uff0c\u786e\u8ba4BIOS\u662f\u5426\u88ab\u7be1\u6539\uff0c\u65e0\u6cd5\u7531BIOS\u72ec\u7acb\u5b8c\u6210\uff0c\u9700\u989d\u5916\u786c\u4ef6\u5e2e\u52a9\u3002<\/p>\n\n\n\n

2\uff09\u521d\u59cb\u5316\u4e34\u65f6\u5b58\u50a8\u533a\u57df\uff0c\u5728SEC\u9636\u6bb5\uff0c\u4ec5CPU\u548cCPU\u3001\u5185\u90e8\u8d44\u6e90\u88ab\u521d\u59cb\u5316\uff0c\u5404\u79cd\u5916\u90e8\u8bbe\u5907\u548c\u5185\u5b58\u90fd\u6ca1\u6709\u88ab\u521d\u59cb\u5316\uff0c\u9700\u8981CPU\u4e2d\u7684L2 cache\u6765\u4f5c\u4e3aRAM\uff08Cache AS RAM\uff09,\u7136\u540e\u5c06\u90e8\u5206BIOS\u4ee3\u7801\u52a0\u8f7d\u5230Seccurity environment\u4e2d\u6765\u3002<\/p>\n\n\n\n

3\uff09\u4f5c\u4e3a\u7cfb\u7edf\u4fe1\u4efb\u7684\u6839\u6e90\uff0c\u53ea\u6709\u6839\u6e90\u88ab\u4fe1\u4efb\uff0c\u5176\u540e\u7eed\u624d\u80fd\u4fe1\u4efb\u3002<\/p>\n\n\n\n

4\uff09\u4f20\u9012\u7cfb\u7edf\u53c2\u6570\u7ed9\u4e0b\u4e00\u4e2a\u9636\u6bb5\uff08\u5373PEI\uff09\uff0cSEC\u9636\u6bb5\u7684\u4e00\u5207\u5de5\u4f5c\u90fd\u662f\u4e3aPEI\u9636\u6bb5\u505a\u51c6\u5907\uff0c\u6700\u7ec8SEC\u8981\u628a\u63a7\u5236\u6743\u8f6c\u4ea4\u7ed9PEI\uff0c\u540c\u65f6\u8981\u5c06\u73b0\u9636\u6bb5\u7684\u6210\u679c\u6c47\u62a5\u7ed9PEI\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\n\nSEC\u9636\u6bb5\u6267\u884c\u6d41\u7a0b\n\n<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\n\n2\u3001PEI \u524d\u671f\u521d\u59cb\u5316\n\n<\/h3>\n\n\n\n

PEI\u5373\uff08Pre-EFI Intitialization\uff09\u9636\u6bb5\u8d44\u6e90\u4ecd\u7136\u5341\u5206\u6709\u9650\uff0c\u5185\u5b58\u5230\u4e86PEI\u540e\u671f\u624d\u88ab\u521d\u59cb\u5316\uff0c\u5176\u4e3b\u8981\u529f\u80fd\u662f\u4e3aDXE\u51c6\u5907\u6267\u884c\u73af\u5883\uff0c\u5c06\u9700\u8981\u4f20\u9012\u5230DXE\u7684\u4fe1\u606f\u7ec4\u6210HOB\uff08Handoff Block\uff09\u5217\u8868\uff0c\u6700\u7ec8\u5c06\u63a7\u5236\u6743\u8f6c\u4ea4\u5230DXE\u624b\u4e2d\u3002<\/p>\n\n\n\n

PEI\u53ef\u5206\u4e3a\u4ee5\u4e0b\u4e24\u90e8\u5206\uff1a<\/p>\n\n\n\n

1\uff09PEI\u5185\u6838\uff1a\u8d1f\u8d23PEI\u57fa\u7840\u670d\u52a1\u548c\u6d41\u7a0b<\/p>\n\n\n\n

2\uff09PEIM\uff08PEI Module\uff09\u6d3e\u9063\u5668\uff1a\u4e3b\u8981\u529f\u80fd\u662f\u627e\u51fa\u7cfb\u7edf\u4e2d\u7684\u6240\u6709PEIM\uff0c\u5e76\u6839\u636ePEIM\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u6309\u987a\u5e8f\u6267\u884cPEIM\u3002PEI\u9636\u6bb5\u5bf9\u7cfb\u7edf\u7684\u521d\u59cb\u5316\u4e3b\u8981\u662f\u7531PEIM\u5b8c\u6210\u7684\u3002<\/p>\n\n\n\n

PEI\u6267\u884c\u6d41\u7a0b\u56fe\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u901a\u8fc7PeiServices\uff0cPEIM\u53ef\u4ee5\u4f7f\u7528PEI\u9636\u6bb5\u63d0\u4f9b\u7684\u7cfb\u7edf\u670d\u52a1\uff0c\u901a\u8fc7\u8fd9\u4e9b\u7cfb\u7edf\u670d\u52a1\uff0cPEIM\u53ef\u4ee5\u8bbf\u95eePEI\u5185\u6838\u3002PEIM\u4e4b\u95f4\u7684\u901a\u4fe1\u901a\u8fc7PPI\uff08PEIM-to-PEIM Interfaces\uff09\u5b8c\u6210\u3002\u6bcf\u4e2aPPI\u90fd\u6709\u4e00\u4e2aGUID\u3002<\/p>\n\n\n\n

3\u3001DXE \u9a71\u52a8\u6267\u884c\u73af\u5883<\/h3>\n\n\n\n

DXE\uff08Driver Execution Environment\uff09\u9636\u6bb5\u6267\u884c\u5927\u90e8\u5206\u7cfb\u7edf\u521d\u59cb\u5316\u5de5\u4f5c\uff0c\u8fdb\u5165\u6b64\u9636\u6bb5\u65f6\uff0c\u5185\u5b58\u5df2\u7ecf\u53ef\u4ee5\u88ab\u5b8c\u5168\u4f7f\u7528\uff0c\u56e0\u800c\u6b64\u9636\u6bb5\u53ef\u4ee5\u8fdb\u884c\u5927\u91cf\u7684\u590d\u6742\u5de5\u4f5c\u3002<\/p>\n\n\n\n

DXE\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u4e24\u90e8\u5206\uff1a<\/p>\n\n\n\n

1\uff09DXE\u5185\u6838\uff1a\u8d1f\u8d23DXE\u57fa\u7840\u670d\u52a1\u548c\u6267\u884c\u6d41\u7a0b<\/p>\n\n\n\n

2\uff09DXE\u6d3e\u9063\u5668\uff1a\u8d1f\u8d23\u8c03\u5ea6\u6267\u884cDXE\u9a71\u52a8\uff0c\u521d\u59cb\u5316\u7cfb\u7edf\u8bbe\u5907\u3002<\/p>\n\n\n\n

DXE\u6267\u884c\u6d41\u7a0b<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\n\nDXE\u9a71\u52a8\u4e4b\u95f4\u901a\u8fc7Protocol\u901a\u4fe1\uff0cProtocol\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7ed3\u6784\u4f53\uff0c\u6bcf\u4e2aProtocol\u5bf9\u5e94\u4e00\u4e2aGUID\u3002\u5f53\u6240\u6709\u7684Driver\u90fd\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u7cfb\u7edf\u5b8c\u6210\u521d\u59cb\u5316\uff0cDXE\u901a\u8fc7EFI_BDS_ARCH_PROTOCOL\u627e\u5230BDS\u5e76\u8c03\u7528BDS\u7684\u5165\u53e3\u51fd\u6570\uff0c\u4ece\u800c\u8fdb\u5165BDS\u9636\u6bb5\u3002\u4ece\u672c\u8d28\u4e0a\u8bb2\uff0cBDS\u662f\u4e00\u79cd\u7279\u6b8a\u7684DXE\u9636\u6bb5\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\n\n<\/p>\n\n\n\n

4\u3001BDS \u542f\u52a8\u8bbe\u5907\u9009\u62e9<\/h3>\n\n\n\n

BDS\uff08Boot Device Selection\uff09\u7684\u4e3b\u8981\u529f\u80fd\u662f\u6267\u884c\u542f\u52a8\u7b56\u7565\uff0c\u5176\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n\n\n\n

1\uff09\u521d\u59cb\u5316\u63a7\u5236\u53f0\u8bbe\u5907<\/p>\n\n\n\n

2\uff09\u52a0\u8f7d\u5fc5\u8981\u7684\u8bbe\u5907\u9a71\u52a8<\/p>\n\n\n\n

3\uff09\u6839\u636e\u7cfb\u7edf\u8bbe\u7f6e\u52a0\u8f7d\u548c\u6267\u884c\u542f\u52a8\u9879<\/p>\n\n\n\n

4\uff09\u8fde\u63a5\u9ed8\u8ba4\u63a7\u5236\u53f0\u8f93\u5165\u8f93\u51fa<\/p>\n\n\n\n

5\uff09\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u5fbd\u6807\u6216\u7cfb\u7edf\u4fe1\u606f<\/p>\n\n\n\n

6\uff09\u8fde\u63a5\u6240\u6709\u8bbe\u5907\u548c\u9a71\u52a8\u7a0b\u5e8f<\/p>\n\n\n\n

7\uff09\u679a\u4e3e\u6240\u6709\u542f\u52a8\u9009\u9879\u8bbe\u5907<\/p>\n\n\n\n

8\uff09\u5f15\u5bfc\u5230\u7cfb\u7edf\uff0c\u7528\u6237\u9009\u4e2d\u67d0\u4e2a\u542f\u52a8\u9879\uff08\u6216\u7cfb\u7edf\u8fdb\u5165\u9ed8\u8ba4\u7684\u542f\u52a8\u9879\uff09\u540e\uff0cOS Loader\u542f\u52a8\uff0c\u7cfb\u7edf\u8fdb\u5165TSL\u9636\u6bb5\u3002<\/p>\n\n\n\n

\u603b\u800c\u8a00\u4e4b\uff1a\u53d1\u73b0\u542f\u52a8\u8bbe\u5907\uff0c\u8fdb\u5165SCU\uff0c\u542f\u52a8\u9009\u62e9\u754c\u9762\uff0c\u5f00\u542f\u8f93\u5165\u8f93\u51fa\u8bbe\u5907<\/p>\n\n\n\n

BDS\u6267\u884c\u6d41\u7a0b\uff1a<\/strong><\/p>\n\n\n\n

1\uff09\u521d\u59cb\u5316\u8f93\u5165\u8f93\u51fa<\/p>\n\n\n\n

2\uff09check\u70ed\u952e\u662f\u5426\u88ab\u6309 A\uff1a\u662f\uff0c\u8fdb\u5165BIOS\/UEFI B\uff1a\u5426\uff0cBoot by BootOrder<\/p>\n\n\n\n

3\uff09OS Loader call ExitBootServices() to end BDS \u5e76\u5f00\u59cbruntime timer<\/p>\n\n\n\n

5\u3001TSL \u64cd\u4f5c\u7cfb\u7edf\u52a0\u8f7d\u524d\u671f<\/h3>\n\n\n\n

TSL\uff08Transient System Load\uff09\u662f\u64cd\u4f5c\u7cfb\u7edf\u52a0\u8f7d\u5668\u6267\u884c\u7684\u7b2c\u4e00\u9636\u6bb5\uff0c\u5728\u8fd9\u4e00\u9636\u6bb5OS Loader\u4f5c\u4e3a\u4e00\u4e2aUEFI\u5e94\u7528\u7a0b\u5e8f\u8fd0\u884c\uff0c\u7cfb\u7edf\u8d44\u6e90\u4ecd\u7136\u7531UEFI\u5185\u6838\u63a7\u5236\u3002\u5f53\u542f\u52a8\u670d\u52a1\u7684ExitBootServices\uff08\uff09\u670d\u52a1\u88ab\u8c03\u7528\u540e\uff0c\u7cfb\u7edf\u8fdb\u5165Run Time\u9636\u6bb5\u3002TSL\u9636\u6bb5\u4e4b\u6240\u4ee5\u79f0\u4e3a\u4e34\u65f6\u7cfb\u7edf\uff0c\u5728\u4e8e\u5b83\u5b58\u5728\u7684\u76ee\u7684\u5c31\u662f\u4e3a\u64cd\u4f5c\u7cfb\u7edf\u52a0\u8f7d\u5668\u51c6\u5907\u6267\u884c\u73af\u5883\u3002\u867d\u7136\u662f\u4e34\u65f6\u7cfb\u7edf\uff0c\u4f46\u5176\u529f\u80fd\u5df2\u7ecf\u5f88\u5f3a\u5927\uff0c\u5df2\u7ecf\u5177\u5907\u4e86\u64cd\u4f5c\u7cfb\u7edf\u7684\u96cf\u5f62\uff0cUEFI Shell\u662f\u8fd9\u4e2a\u4e34\u65f6\u7cfb\u7edf\u7684\u4eba\u673a\u4ea4\u4e92\u754c\u9762\u3002\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u7cfb\u7edf\u4e0d\u4f1a\u8fdb\u5165UEFI Shell\uff0c\u800c\u662f\u76f4\u63a5\u6267\u884c\u64cd\u4f5c\u7cfb\u7edf\u52a0\u8f7d\u5668\uff0c\u53ea\u6709\u5728\u7528\u6237\u5e72\u9884\u4e0b\u6216\u64cd\u4f5c\u7cfb\u7edf\u52a0\u8f7d\u5668\u9047\u5230\u4e25\u91cd\u9519\u8bef\u65f6\u624d\u4f1a\u8fdb\u5165UEFI Shell\u3002<\/p>\n\n\n\n

6\u3001RT \u8fd0\u884c\u65f6<\/h3>\n\n\n\n

RT\uff08Run Time\uff09\u7cfb\u7edf\u8fdb\u5165RT\u9636\u6bb5\u540e\uff0c\u7cfb\u7edf\u7684\u63a7\u5236\u6743\u4eceUEFI\u5185\u6838\u8f6c\u4ea4\u5230OS Loader\u624b\u4e2d\uff0cUEFI\u5360\u7528\u7684\u5404\u79cd\u8d44\u6e90\u88ab\u56de\u6536\u5230OS Loader\uff0c\u4ec5\u6709UEFI\u8fd0\u884c\u65f6\u670d\u52a1\u4fdd\u7559\u7ed9OS Loader\u548cOS\u4f7f\u7528\u3002\u968f\u7740OS Loader\u7684\u6267\u884c\uff0cOS\u6700\u7ec8\u53d6\u5f97\u5bf9\u7cfb\u7edf\u7684\u63a7\u5236\u6743\u3002<\/p>\n\n\n\n

7\u3001AL \u7cfb\u7edf\u707e\u96be\u6062\u590d\u671f<\/h3>\n\n\n\n

\u5728RT\u9636\u6bb5\uff0c\u5982\u679c\u7cfb\u7edf\uff08\u786c\u4ef6\u6216\u8f6f\u4ef6\uff09\u9047\u5230\u707e\u96be\u6027\u9519\u8bef\uff0c\u7cfb\u7edf\u56fa\u4ef6\u9700\u8981\u63d0\u4f9b\u9519\u8bef\u5904\u7406\u548c\u707e\u96be\u6062\u590d\u673a\u5236\uff0c\u8fd9\u79cd\u673a\u5236\u8fd0\u884c\u5728AL\uff08After Life\uff09\u9636\u6bb5\u3002UEFI\u548cUEFI PI\u6807\u51c6\u90fd\u6ca1\u6709\u5b9a\u4e49\u6b64\u9636\u6bb5\u7684\u884c\u4e3a\u548c\u89c4\u8303\u3002<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

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