{"id":17778,"date":"2026-06-10T08:51:05","date_gmt":"2026-06-10T00:51:05","guid":{"rendered":"https:\/\/ab123.xyz\/?p=17778"},"modified":"2026-06-10T08:51:05","modified_gmt":"2026-06-10T00:51:05","slug":"risc-v-%e4%b8%ad%e6%96%ad%e6%8e%a7%e5%88%b6%e5%99%a8-plic-%e9%85%8d%e7%bd%ae%e4%b8%8e%e4%b8%ad%e6%96%ad%e5%bb%b6%e8%bf%9f%e4%bc%98%e5%8c%96%e6%8a%80%e5%b7%a7-2","status":"publish","type":"post","link":"https:\/\/ab123.xyz\/?p=17778","title":{"rendered":"RISC-V \u4e2d\u65ad\u63a7\u5236\u5668 (PLIC) \u914d\u7f6e\u4e0e\u4e2d\u65ad\u5ef6\u8fdf\u4f18\u5316\u6280\u5de7"},"content":{"rendered":"

\u5728\u5b9e\u65f6\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e0e\u9ad8\u6027\u80fd\u8ba1\u7b97\u573a\u666f\u4e2d\uff0cRISC-V \u5e73\u53f0\u7684\u4e2d\u65ad\u54cd\u5e94\u6548\u7387\u76f4\u63a5\u51b3\u5b9a\u7cfb\u7edf\u7684\u786e\u5b9a\u6027\u3002\u5e73\u53f0\u7ea7\u4e2d\u65ad\u63a7\u5236\u5668 (PLIC) \u4f5c\u4e3a\u4e2d\u65ad\u8def\u7531\u4e0e\u4f18\u5148\u7ea7\u7ba1\u7406\u7684\u6838\u5fc3\u7ec4\u4ef6\uff0c\u5176\u914d\u7f6e\u5408\u7406\u6027\u5bf9\u4e2d\u65ad\u5ef6\u8fdf\u6709\u660e\u663e\u5f71\u54cd\u3002\u672c\u6587\u5c06\u6df1\u5165\u4ecb\u7ecd PLIC \u7684\u5de5\u4f5c\u539f\u7406\u3001\u5ef6\u8fdf\u74f6\u9888\u53ca\u4e00\u5957\u6210\u719f\u7684\u914d\u7f6e\u4f18\u5316\u65b9\u6cd5\u8bba\uff0c\u5e76\u63a8\u8350\u4e00\u6b3e\u4e13\u4e1a\u7684\u8f85\u52a9\u5de5\u5177 \u2014\u2014 PLIC \u5ef6\u8fdf\u5206\u6790\u5957\u4ef6<\/strong>\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u5b9a\u4f4d\u4e0e\u6d88\u9664\u6296\u52a8\u3002<\/p>\n

\u8be5\u5de5\u5177\u5df2\u96c6\u6210\u5728 RISC-V \u5b98\u65b9\u751f\u6001\u7cfb\u7edf\u4e4b\u4e2d\uff0c\u63d0\u4f9b\u53ef\u89c6\u5316\u5bc4\u5b58\u5668\u6620\u5c04\u3001\u4e2d\u65ad\u4f18\u5148\u7ea7\u6392\u5e8f\u3001\u4e0a\u4e0b\u6587\u5207\u6362\u8017\u65f6\u7edf\u8ba1\u7b49\u529f\u80fd\u3002\u5f00\u53d1\u8005\u53ef\u901a\u8fc7 \u5b98\u65b9\u7f51\u7ad9<\/a> \u83b7\u53d6\u6700\u65b0\u7248\u5b89\u88c5\u5305\u4e0e\u6587\u6863\u3002\u4ee5\u4e0b\u4ece\u4e09\u4e2a\u7ef4\u5ea6\u5c55\u5f00\u6280\u672f\u7ec6\u8282\u3002<\/p>\n

PLIC \u529f\u80fd\u4e0e\u67b6\u6784\u6982\u89c8<\/h2>\n

PLIC \u8d1f\u8d23\u6536\u96c6\u6765\u81ea\u591a\u4e2a\u5916\u90e8\u8bbe\u5907\u7684\u4e2d\u65ad\u8bf7\u6c42\uff0c\u6309\u7167\u4f18\u5148\u7ea7\u89c4\u5219\u5411\u76ee\u6807\u5904\u7406\u5668\u7684\u6838\u95f4\u4e2d\u65ad\u63a7\u5236\u5668 (CLINT) \u8f6c\u53d1\u3002\u5176\u6838\u5fc3\u5bc4\u5b58\u5668\u5305\u62ec\uff1a\u4e2d\u65ad\u6302\u8d77\u5bc4\u5b58\u5668\u3001\u4e2d\u65ad\u4f7f\u80fd\u5bc4\u5b58\u5668\u3001\u4f18\u5148\u7ea7\u9608\u503c\u5bc4\u5b58\u5668\u4ee5\u53ca\u58f0\u660e\/\u5b8c\u6210\u5bc4\u5b58\u5668\u3002\u914d\u7f6e\u4e0d\u5f53\u4f1a\u5bfc\u81f4\u4e2d\u65ad\u4e22\u5931\u6216\u54cd\u5e94\u987a\u5e8f\u9519\u4e71\u3002<\/p>\n

\u5173\u952e\u5bc4\u5b58\u5668\u7ec4<\/h3>\n
    \n
  • \u4e2d\u65ad\u6302\u8d77\u5bc4\u5b58\u5668 (IP)\uff1a\u53ea\u8bfb\uff0c\u6807\u8bc6\u5f53\u524d\u7b49\u5f85\u5904\u7406\u7684\u4e2d\u65ad\u6e90\u3002<\/li>\n
  • \u4e2d\u65ad\u4f7f\u80fd\u5bc4\u5b58\u5668 (IE)\uff1a\u63a7\u5236\u6bcf\u4e2a\u4e2d\u65ad\u6e90\u662f\u5426\u88ab\u8def\u7531\u5230\u76ee\u6807 hart\u3002<\/li>\n
  • \u4f18\u5148\u7ea7\u5bc4\u5b58\u5668\uff1a\u4e3a\u6bcf\u4e2a\u4e2d\u65ad\u6e90\u5206\u914d 0\u20137 \u7684\u4f18\u5148\u7ea7\uff0c\u503c\u8d8a\u5927\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002<\/li>\n
  • \u9608\u503c\u5bc4\u5b58\u5668\uff1a\u53ea\u6709\u4f18\u5148\u7ea7\u9ad8\u4e8e\u6b64\u503c\u7684\u8bf7\u6c42\u624d\u4f1a\u88ab\u8f6c\u53d1\u3002<\/li>\n<\/ul>\n

    \u4e2d\u65ad\u5ef6\u8fdf\u5f71\u54cd\u56e0\u7d20\u4e0e\u74f6\u9888\u5206\u6790<\/h2>\n

    \u4e2d\u65ad\u5ef6\u8fdf\u7531\u786c\u4ef6\u8def\u5f84\u8017\u65f6\u4e0e\u8f6f\u4ef6\u5904\u7406\u5f00\u9500\u7ec4\u6210\u3002\u786c\u4ef6\u65b9\u9762\uff0cPLIC \u5185\u90e8\u4ef2\u88c1\u903b\u8f91\u3001\u603b\u7ebf\u63e1\u624b\u5ef6\u8fdf\uff08\u5982 TileLink\/AXI\uff09\u3001\u4e2d\u65ad\u58f0\u660e\u5468\u671f\u4e2d\u7684\u8bfb-\u5199\u5e8f\u5217\u5747\u4f1a\u5f15\u5165\u56fa\u5b9a\u5f00\u9500\u3002\u8f6f\u4ef6\u65b9\u9762\uff0c\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f (ISR) \u7684\u5165\u53e3\/\u51fa\u53e3\u4e0a\u4e0b\u6587\u4fdd\u5b58\u3001\u5d4c\u5957\u4e2d\u65ad\u5904\u7406\u7b56\u7565\u662f\u4e3b\u8981\u53ef\u53d8\u56e0\u5b50\u3002<\/p>\n

    \u5e38\u89c1\u6027\u80fd\u9677\u9631<\/h3>\n
      \n
    • \u9608\u503c\u8bbe\u7f6e\u8fc7\u9ad8\u5bfc\u81f4\u4f4e\u4f18\u5148\u7ea7\u4e2d\u65ad\u88ab\u957f\u65f6\u95f4\u5c4f\u853d\u3002<\/li>\n
    • \u4e2d\u65ad\u4f7f\u80fd\u5bc4\u5b58\u5668\u672a\u6309 hart \u4eb2\u548c\u6027\u5206\u914d\uff0c\u9020\u6210\u8de8\u6838\u8f6c\u53d1\u5ef6\u8fdf\u3002<\/li>\n
    • \u5728 ISR \u4e2d\u8c03\u7528\u975e\u53ef\u91cd\u5165\u51fd\u6570\u6216\u8fdb\u884c\u540c\u6b65\u64cd\u4f5c\uff0c\u5ef6\u957f\u5173\u95ed\u5168\u5c40\u4e2d\u65ad\u7684\u65f6\u95f4\u3002<\/li>\n<\/ul>\n

      \u4f18\u5316\u6280\u5de7\u4e0e\u5de5\u5177\u5e94\u7528<\/h2>\n

      \u9488\u5bf9\u4e0a\u8ff0\u74f6\u9888\uff0c\u4e13\u4e1a\u5de5\u5177 PLIC \u5ef6\u8fdf\u5206\u6790\u5957\u4ef6\u63d0\u4f9b\u4e86\u4ece\u9759\u6001\u914d\u7f6e\u68c0\u67e5\u5230\u52a8\u6001\u6ce2\u5f62\u5206\u6790\u7684\u5168\u94fe\u8def\u624b\u6bb5\u3002\u5176\u6838\u5fc3\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n

      \u9759\u6001\u914d\u7f6e\u5ba1\u8ba1<\/h3>\n

      \u81ea\u52a8\u626b\u63cf\u8bbe\u5907\u6811\u4e0e\u56fa\u4ef6\u6e90\u7801\u4e2d\u7684 PLIC \u521d\u59cb\u5316\u53c2\u6570\uff0c\u751f\u6210\u4f18\u5148\u7ea7\u51b2\u7a81\u62a5\u544a\u3001\u672a\u4f7f\u80fd\u4e2d\u65ad\u6e90\u6e05\u5355\uff0c\u5e76\u5efa\u8bae\u6700\u4f18\u9608\u503c\u3002\u8be5\u5de5\u5177\u53ef\u96c6\u6210\u81f3 CI\/CD \u6d41\u6c34\u7ebf\uff0c\u786e\u4fdd\u6bcf\u6b21\u63d0\u4ea4\u7684\u914d\u7f6e\u7b26\u5408\u5b9e\u65f6\u6027\u57fa\u7ebf\u3002<\/p>\n

      \u8fd0\u884c\u65f6\u5ef6\u8fdf\u6d4b\u91cf<\/h3>\n

      \u901a\u8fc7\u786c\u4ef6\u8ba1\u6570\u5668\u6216 Trace \u63a5\u53e3\u6355\u83b7\u4e2d\u65ad\u5230\u8fbe\u3001PLIC \u8f6c\u53d1\u3001\u6838\u5165\u53e3\u4e09\u7aef\u7684\u65f6\u95f4\u6233\uff0c\u751f\u6210\u5ef6\u8fdf\u5206\u5e03\u76f4\u65b9\u56fe\u3002\u5de5\u5177\u652f\u6301\u81ea\u5b9a\u4e49\u4e2d\u65ad\u6e90\u7ec4\u5408\uff0c\u6a21\u62df\u9ad8\u8d1f\u8f7d\u4e0b\u7684\u7ade\u4e89\u573a\u666f\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u9a8c\u8bc1\u4f18\u5148\u7ea7\u62a2\u5360\u7b56\u7565\u3002<\/p>\n

      \u81ea\u52a8\u5316\u4ee3\u7801\u751f\u6210<\/h3>\n

      \u6839\u636e\u7528\u6237\u8bbe\u5b9a\u7684\u6700\u5927\u5ef6\u8fdf\u5bb9\u5fcd\u5ea6\uff0c\u5de5\u5177\u53ef\u81ea\u52a8\u751f\u6210\u4f18\u5316\u7684 PLIC \u521d\u59cb\u5316\u4ee3\u7801\u3001\u4e2d\u65ad\u5411\u91cf\u8868\u5e03\u5c40\u53ca ISR \u6a21\u677f\uff0c\u5e76\u9644\u6ce8\u5ef6\u8fdf\u9884\u7b97\u5bf9\u6bd4\u8868\u3002\u5f00\u53d1\u8005\u53ea\u9700\u5173\u6ce8\u4e1a\u52a1\u903b\u8f91\uff0c\u65e0\u9700\u624b\u52a8\u63a8\u6f14\u6bcf\u4e2a\u5bc4\u5b58\u5668\u7684\u65f6\u5e8f\u5f71\u54cd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u5728\u5b9e\u65f6\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e0e\u9ad8\u6027\u80fd\u8ba1\u7b97\u573a\u666f\u4e2d\uff0cRISC-V \u5e73\u53f0\u7684\u4e2d\u65ad\u54cd\u5e94\u6548\u7387\u76f4\u63a5\u51b3\u5b9a\u7cfb\u7edf\u7684\u786e\u5b9a\u6027\u3002\u5e73\u53f0\u7ea7\u4e2d\u65ad\u63a7\u5236\u5668 ( […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[21144,20932,21146,21148,21136],"class_list":["post-17778","post","type-post","status-publish","format-standard","hentry","category-4","tag-plic","tag-risc-v","tag-21146","tag-21148","tag-21136"],"_links":{"self":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/17778","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17778"}],"version-history":[{"count":1,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/17778\/revisions"}],"predecessor-version":[{"id":17781,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/17778\/revisions\/17781"}],"wp:attachment":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}