{"id":18664,"date":"2023-07-06T20:07:24","date_gmt":"2023-07-06T12:07:24","guid":{"rendered":"http:\/\/stmu.1000uc.com\/mu\/?p=18664"},"modified":"2023-07-06T20:07:24","modified_gmt":"2023-07-06T12:07:24","slug":"%e5%a5%87%e8%bf%b9mu-%e9%9d%9e%e7%bb%91%e5%ae%9a%e5%93%aa%e9%87%8c%e5%87%ba%ef%bc%8c%e5%85%a8%e6%b0%91%e5%a5%87%e8%bf%b9mu%e8%a3%85%e5%a4%87%e6%80%8e%e4%b9%88%e8%bf%9b%e9%98%b6%e8%a3%85%e5%a4%87","status":"publish","type":"post","link":"http:\/\/stmu.1000uc.com\/mu\/18664.html","title":{"rendered":"mu \u975e\u7ed1\u5b9a\u54ea\u91cc\u51fa\uff0c\u5168\u6c11mu\u88c5\u5907\u600e\u4e48\u8fdb\u9636\u88c5\u5907\u8fdb\u9636\u653b\u7565"},"content":{"rendered":"

\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u7ed9\u5404\u4f4d\u5206\u4eab\u5947\u8ff9mu \u975e\u7ed1\u5b9a\u54ea\u91cc\u51fa\u7684\u4e00\u4e9b\u77e5\u8bc6\uff0c\u5176\u4e2d\u4e5f\u4f1a\u5bf9\u5168\u6c11\u5947\u8ff9mu\u88c5\u5907\u600e\u4e48\u8fdb\u9636\u88c5\u5907\u8fdb\u9636\u653b\u7565\u8fdb\u884c\u89e3\u91ca\uff0c\u6587\u7ae0\u7bc7\u5e45\u53ef\u80fd\u504f\u957f\uff0c\u5982\u679c\u80fd\u78b0\u5de7\u89e3\u51b3\u4f60\u73b0\u5728\u9762\u4e34\u7684\u95ee\u9898\uff0c\u522b\u5fd8\u4e86\u5173\u6ce8\u672c\u7ad9\uff0c\u73b0\u5728\u5c31\u9a6c\u4e0a\u5f00\u59cb\u5427\uff01<\/p>\n

AMD\u4e3b\u677f\u8bbe\u7f6e\u91cc\u7684iommu mode\u6709\u8c01\u7814\u7a76\u8fc7\u5417<\/h3>\n

IOMMU\uff1ainput\/outputmemorymanagementunit\u3002Device\u7684IOMMU\u7c7b\u4f3c\u4e8eCPU\u7684MMU\u3002<\/p>\n

\u8981\u572864\u4f4d\u7cfb\u7edf\u4e0a\u652f\u630132\u4f4d\u8bbe\u5907\uff0c\u6bd4\u5982\u8bf4\u7f51\u5361\uff0c\u5982\u679c\u6ca1\u6709IOMMU\uff0c\u5c31\u9700\u8981\u5728\u7269\u7406\u5185\u5b58\u5e95\u7aef\uff0c\u4e5f\u5c31\u662f32\u4f4d\u8bbe\u5907\u80fd\u591f\u8bbf\u95ee\u5230\u7684\u5730\u65b9\u8bbe\u7f6e\u4e00\u4e2a\u53eb\u505a”bouncebuffers”\u7684\u4e1c\u897f\uff0c\u5982\u679c\u8bbe\u5907\u8981\u8bbf\u95ee\u9ad8\u7aef\u5185\u5b58\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5c31\u8981\u5728\u9ad8\u7aef\u5185\u5b58\u548c”bouncebuffers”\u4e4b\u95f4\u505a\u4e00\u4e2a\u62f7\u8d1d\u3002\u5e26\u6765\u7684\u6027\u80fd\u5f71\u54cd\u663e\u800c\u6613\u89c1\u3002\u5982\u679c\u6709\u4e86IOMMU\uff0c\u8fd9\u4e2a\u95ee\u9898\u5c31\u8fce\u5203\u800c\u89e3\u4e86\u3002\u5728\u8bbe\u5907\u9a71\u52a8\u505aDMA\u7ed1\u5b9a\u7684\u65f6\u5019\uff0c\u7cfb\u7edf\u8fd4\u56de\u7ed9\u9a71\u52a8\u7684\u4e0d\u518d\u662f\u7269\u7406\u5730\u5740\uff0c\u800c\u662f\u5185\u6838\u7a7a\u95f4\u7684\u67d0\u4e2a\u5730\u5740\uff08\u6709\u7684\u4e66\u4e0a\u53eb\u505a\u603b\u7ebf\u5730\u5740\uff09\uff0c\u4f20\u8f93\u7684\u65f6\u5019\uff0c\u8fd9\u4e2a\u5185\u6838\u7a7a\u95f4\u5730\u5740\u4f1a\u7ecf\u7531IOMMU\u5355\u5143\uff0cIOMMU\u5c06\u8fd9\u4e2a\u5730\u5740\u8f6c\u6362\u4e3a\u7269\u7406\u5730\u5740\u3002scatter\/gather\u5e76\u4e0d\u4f1a\u5e26\u6765\u6027\u80fd\u4e0a\u7684\u597d\u5904\uff0c\u4f46\u662f\u4f1a\u7b80\u5316\u8bbe\u5907\u9a71\u52a8\u7a0b\u5e8f\u3002\u4f8b\u5982\u7f51\u5361\u9a71\u52a8\u5728\u53d1\u9001\u5305\u7684\u65f6\u5019\uff0cDMA\u90a6\u5b9a\u540e\uff0c\u7cfb\u7edf\u53ef\u80fd\u4f1a\u8fd4\u56de\u7ed9\u8bbe\u5907\u9a71\u52a8\u591a\u4e2a\u4e0d\u8fde\u7eed\u7684\u7269\u7406\u5730\u5740\uff0cSolaris\u53eb\u505acookie\u3002\u8fd9\u6837\u7684\u8bdd\uff0c\u6bcf\u4e00\u4e2acookie\u90fd\u9700\u8981\u5360\u7528\u4e00\u4e2a\u53d1\u9001\u63cf\u8ff0\u7b26\u3002\u5982\u679c\u7cfb\u7edf\u652f\u6301IOMMU\u7684\u8bdd\uff0c\u7cfb\u7edf\u53ea\u4f1a\u8fd4\u56de\u7ed9\u8bbe\u5907\u9a71\u52a8\u4e00\u4e2acookie\u3002\u5f53\u7136\u4e86\u6709\u4e13\u5bb6\u63d0\u9192\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u539f\u56e0\uff0c\u5982\u679c\u8bbe\u5907\u9a71\u52a8\u662f\u5728\u6ca1\u6709IOMMU\u7684\u60c5\u51b5\u4e0b\u5f00\u53d1\u7684\uff0c\u5728\u652f\u6301IOMMU\u7684\u7cfb\u7edf\u4e0a\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002\u4f46\u53cd\u4e4b\u4e0d\u7136\u3002IOMMU\u9664\u4e86\u4e0a\u8ff0\u529f\u80fd\u5916\u8fd8\u52a0\u5165\u4e86\u5bf9\u865a\u62df\u5316\u7684\u652f\u6301\u3002\u7b80\u5355\u6765\u8bf4\u6709\u4e24\u4e2a\u529f\u80fd\uff0c\u4e00\u4e2aDMARemapping,\u53e6\u5916\u4e00\u4e2a\u662fInterruptRemapping\u3002IOMMU\u5728\u6e90\u4e8eSUN\u516c\u53f8\u7684SPARC\u5e73\u53f0\uff0c\u73b0\u5728Intel\u5e73\u53f0\u53caAMD\u5e73\u53f0\u4e5f\u652f\u6301\u8fd9\u4e00\u6280\u672f\u3002<\/p>\n

\u7279\u4e48\u8bf4\u767d\u4e86\uff0c\u5c31\u662f\u786c\u4ef6\u865a\u62df\u5316\uff01<\/p>\n

\u5168\u6c11\u5947\u8ff9mu\u88c5\u5907\u600e\u4e48\u8fdb\u9636\u88c5\u5907\u8fdb\u9636\u653b\u7565<\/h3>\n

.\u88c5\u5907\u8fdb\u9636\u9009\u9879\u9700\u8981\u5728\u70bc\u7089\u4e2d\u6253\u5f00\uff0c\u9996\u5148\u628a\u8981\u8fdb\u96363\u4ef6\u88c5\u5907\u4e8b\u5148\u653e\u5728\u80cc\u5305\u5185;2.\u7136\u540e\u9010\u4e00\u653e\u5165\u8fd93\u4ef6\u88c5\u5907\uff0c\u6ce8\u610f\u8981\u628a\u4f60\u6240\u8981\u4fdd\u7559\u5f3a\u5316\uff0c\u8ffd\u52a0\u7684\u88c5\u5907\u653e\u5728\u4e3b\u4f4d\u4e0a;3.\u70b9\u51fb\u8fdb\u9636\u88c5\u5907\uff0c\u9700\u8981\u6d88\u8d3952000\u7684\u9b54\u6676\u5c31\u80fd\u5408\u6210\u9ad8\u4e00\u9636\u7684\u88c5\u5907\u4e86\u3002\u5982\u679c\u8bf4\u4f603\u4ef6\u88c5\u5907\u90fd\u5904\u4e8e\u672a\u7ed1\u5b9a\u72b6\u6001\uff0c\u90a3\u4e48\u4f60\u5408\u51fa\u6765\u7684\u88c5\u5907\u4e5f\u5c06\u662f\u672a\u7ed1\u5b9a\u7684\uff0c\u4f46\u53ea\u8981\u5176\u4e2d\u4e00\u4ef6\u6709\u7ed1\u5b9a\u5408\u51fa\u6765\u7684\u88c5\u5907\u662f\u5c5e\u4e8e\u7ed1\u5b9a\u88c5\u5907(\u7ed1\u5b9a\u88c5\u5907\u65e0\u6cd5\u4e0e\u73a9\u5bb6\u4ea4\u6613)\u81ea\u5df1\u5e26\u4e5f\u5c31\u65e0\u6240\u8c13\u4e86\u3002<\/p>\n

miu\u548cuiu\u7684\u533a\u522b<\/h3>\n

MIU\u548cUIU\u90fd\u662f\u4eba\u5de5\u667a\u80fd(AI)\u9886\u57df\u4e2d\u7684\u7f16\u7a0b\u8c1c\u9898\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u95ee\u9898\u7684\u5177\u4f53\u63cf\u8ff0\u548c\u6c42\u89e3\u65b9\u6cd5\u3002<\/p>\n

MIU\u548cUIU\u662f\u7531\u6570\u5b66\u5bb6\u548c\u903b\u8f91\u5b66\u5bb6\u9053\u683c\u62c9\u65af\u00b7\u970d\u592b\u65af\u5854\u5fb7\u6559\u6388\u63d0\u51fa\u7684\uff0c\u65e8\u5728\u5e2e\u52a9\u4eba\u4eec\u7406\u89e3\u81ea\u52a8\u673a\u7406\u8bba\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5f62\u5f0f\u8bed\u8a00\u548c\u8ba1\u7b97\u7406\u8bba\u7b49\u4e00\u7cfb\u5217\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u7684\u57fa\u672c\u6982\u5ff5\u3002<\/p>\n

MIU\u8c1c\u9898\u662f\u6307\u7ed9\u5b9a\u4e00\u4e2a\u8d77\u59cb\u5b57\u7b26\u4e32MI\uff0c\u5728\u6bcf\u4e00\u6b65\u53ef\u4ee5\u8fdb\u884c\u4ee5\u4e0b\u4e09\u79cd\u64cd\u4f5c\u4e4b\u4e00\uff1a1.\u628a\u672b\u5c3e\u7684I\u5220\u6389\uff1b2.\u5728\u4e32\u7684\u672b\u5c3e\u6dfb\u52a0U\uff1b3.\u5c06\u6240\u6709\u7684III\u5b57\u7b26\u4e32\u66ff\u6362\u6210U\u3002\u6c42\u6700\u7ec8\u5f97\u5230\u5b57\u7b26\u4e32MU\u7684\u6700\u77ed\u6b65\u9aa4\u3002<\/p>\n

UIU\u8c1c\u9898\u5219\u662f\u4ee5\u7c7b\u4f3c\u7684\u65b9\u5f0f\u7ed9\u51fa\u4e00\u4e2a\u8d77\u59cb\u5b57\u7b26\u4e32UIUIUI\uff0c\u901a\u8fc7\u66ff\u6362\u89c4\u5219\u5c06\u5176\u8f6c\u53d8\u4e3aUUU\uff0c\u6c42\u6700\u77ed\u6b65\u9aa4\u3002UIU\u8c1c\u9898\u548cMIU\u8c1c\u9898\u7c7b\u4f3c\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u5176\u5bf9\u89c4\u5219\u8fdb\u884c\u4e86\u4fee\u6539\uff0c\u5176\u4e2d\u7684\u66ff\u6362\u89c4\u5219\u662f\u5c06\u6bcf\u4e2aUI\u5b50\u4e32\u66ff\u6362\u4e3aU\u3002<\/p>\n

\u603b\u4e4b\uff0cMIU\u548cUIU\u8c1c\u9898\u90fd\u662f\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u7684\u4e00\u7c7b\u5178\u578b\u7f16\u7a0b\u95ee\u9898\uff0c\u5e2e\u52a9\u4eba\u4eec\u7406\u89e3\u81ea\u52a8\u673a\u7406\u8bba\u548c\u8ba1\u7b97\u7406\u8bba\u7b49\u65b9\u9762\u7684\u77e5\u8bc6\u3002<\/p>\n

\u5947\u8ff9MU\u5927\u5929\u4f7f\u6b66\u5668\u5347\u795d\u5929\u6210\u529f\u7387\u662f\u591a\u5c11<\/h3>\n

\u636e\u8bf4\u662f40%\u7684\u6210\u529f\u7387\uff0c\u5408\u6210\u88c5\u5907\u4e2d\u5982\u679c\u6709\u7ed1\u5b9a\u88c5\u5907\u7684\u8bdd\uff0c\u90a3\u4e48\u5408\u6210\u4e4b\u540e\u7684\u88c5\u5907\u540c\u6837\u4e5f\u4e3a\u65e0\u5fe7\u5ddb\u5947\u7ed1\u5b9a\u7684\u5168\u65b0\u7684\u88c5\u5907\u5408\u6210\u3002<\/p>\n

\u5947\u8ff9mu\u89c9\u9192\u7684\u7fc5\u8180\u600e\u4e48\u83b7\u5f97<\/h3>\n

\u5947\u8ff9MU\u89c9\u9192\u7fc5\u8180\u83b7\u5f97\u65b9\u6cd5\u7fc5\u8180\u4f69\u6234\u51fa\u751f\u5728\u52c7\u8005\u5927\u9646\u4e4b\u540e\uff0c\u4f34\u968f\u7740\u4e3b\u7ebf\u4efb\u52a1\u3010\u98de\u7fd4\u4e4b\u7ffc\u3011\u5b8c\u6210\u540e\u4f1a\u5f00\u542f\u7fc5\u8180\u529f\u80fd\uff0c\u4e0d\u4f1a\u98de\u4e0d\u5947\u8ff9\uff1f\u8ba9\u6211\u4eec\u4f69\u6234\u4e0a\u62c9\u98ce\u7684\u7fc5\u8180\u5f00\u542f\u5192\u9669\u4e4b\u65c5\uff01\u7fc5\u8180\u57f9\u517b\u7fc5\u8180\u9996\u5148\u8981\u901a\u8fc7\u6d88\u8017\u9053\u5177\u201c\u7fbd\u6bdb\u201d\u6765\u63d0\u5347\u661f\u7ea7\uff0c\u63d0\u5347\u523010\u661f\u4e4b\u540e\u53ef\u8fdb\u884c\u5347\u9636\uff0c\u5347\u9636\u9700\u8981\u6d88\u8017\u9053\u5177\u201c\u795e\u9e70\u706b\u79cd\u201d\u6765\u63d0\u5347\u5e78\u8fd0\u503c\uff0c\u5e78\u8fd0\u503c\u8db3\u591f\u65f6\u5c06\u5347\u81f3\u4e0b\u4e00\u9636\u3002\u7fbd\u6bdb&\u795e\u9e70\u706b\u79cd\u7684\u4e3b\u8981\u83b7\u53d6\u9014\u5f84\uff1a<\/p>\n

\u2460\u94bb\u77f3\/\u7ed1\u94bb\u5546\u57ce\uff1a\u4f7f\u7528\u94bb\u77f3\/\u7ed1\u5b9a\u94bb\u77f3\u8d2d\u4e70\uff1b<\/p>\n

\u2461\u4e16\u754cBOSS\u6389\u843d\uff1a\u51fb\u6740\u4e16\u754cBOSS\uff1b<\/p>\n

\u2462\u4e2a\u4eba\u526f\u672c\uff1a\u901a\u5173\u83b7\u5f97\u3002<\/p>\n

\u5173\u4e8e\u5947\u8ff9mu \u975e\u7ed1\u5b9a\u54ea\u91cc\u51fa\uff0c\u5168\u6c11\u5947\u8ff9mu\u88c5\u5907\u600e\u4e48\u8fdb\u9636\u88c5\u5907\u8fdb\u9636\u653b\u7565\u7684\u4ecb\u7ecd\u5230\u6b64\u7ed3\u675f\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u7ed9\u5404\u4f4d\u5206\u4eab\u5947\u8ff9mu \u975e\u7ed1\u5b9a\u54ea\u91cc\u51fa\u7684\u4e00\u4e9b\u77e5\u8bc6\uff0c\u5176\u4e2d\u4e5f\u4f1a\u5bf9\u5168\u6c11\u5947\u8ff9mu\u88c5\u5907\u600e\u4e48\u8fdb\u9636\u88c5\u5907\u8fdb\u9636\u653b\u7565\u8fdb\u884c\u89e3\u91ca\uff0c\u6587\u7ae0\u7bc7\u5e45\u53ef\u80fd\u504f\u957f\uff0c\u5982\u679c\u80fd\u78b0\u5de7\u89e3\u51b3\u4f60\u73b0\u5728\u9762\u4e34\u7684\u95ee\u9898\uff0c\u522b\u5fd8\u4e86\u5173\u6ce8\u672c\u7ad9\uff0c\u73b0\u5728\u5c31\u9a6c\u4e0a\u5f00\u59cb\u5427\uff01 AMD\u4e3b\u677f\u8bbe\u7f6e\u91cc\u7684iommu mode\u6709\u8c01…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"_links":{"self":[{"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/posts\/18664"}],"collection":[{"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/comments?post=18664"}],"version-history":[{"count":1,"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/posts\/18664\/revisions"}],"predecessor-version":[{"id":18665,"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/posts\/18664\/revisions\/18665"}],"wp:attachment":[{"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/media?parent=18664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/categories?post=18664"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/tags?post=18664"},{"taxonomy":"topic","embeddable":true,"href":"http:\/\/stmu.1000uc.com\/mu\/wp-json\/wp\/v2\/topic?post=18664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}