{"id":91,"date":"2024-03-21T23:25:40","date_gmt":"2024-03-21T15:25:40","guid":{"rendered":"http:\/\/104.46.213.183\/?p=91"},"modified":"2024-03-21T23:25:40","modified_gmt":"2024-03-21T15:25:40","slug":"minimum-viable-device-drivers-for-arm-trustzone-%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.yewpo.top\/index.php\/91\/","title":{"rendered":"Driverlet \u7b14\u8bb0"},"content":{"rendered":"<h1>Driverlet \u7b14\u8bb0<\/h1>\n<h2>TrustZone<\/h2>\n<blockquote>\n<p>\u5f53\u524d\u7684\u4e00\u4e9b\u5b89\u5168\u6280\u672f\uff1a<\/p>\n<ul>\n<li>\u7279\u6743\u7ea7\uff1a\u6bcf\u4e2a\u8fdb\u7a0b\u5728\u7279\u5b9a\u7684\u7279\u6743\u7ea7\u4e0a\u6267\u884c\uff0c\u4f8b\u5982 RISC-V \u5c06\u7528\u6237\u8fdb\u7a0b\u653e\u7f6e\u5728 U \u6a21\u5f0f\u4e0b\u8fd0\u884c\uff0c\u5c06\u64cd\u4f5c\u7cfb\u7edf\u653e\u7f6e\u5728 S \u6a21\u5f0f\u4e0b\u8fd0\u884c\u3002\u8fd9\u6837\u53ef\u4ee5\u9694\u79bb\u64cd\u4f5c\u7cfb\u7edf\u548c\u7528\u6237\u8fdb\u7a0b\u7684\u4ee3\u7801\u548c\u6570\u636e\u3002<\/li>\n<li>\u865a\u62df\u5185\u5b58\uff1a\u5411\u8fdb\u7a0b\u63d0\u4f9b\u4e00\u6bb5\u8fde\u7eed\u7684\u903b\u8f91\u7a7a\u95f4\uff0c\u4ece\u903b\u8f91\u4e0a\u53ef\u4ee5\u6269\u5c55\u6709\u9650\u7684\u7269\u7406\u5185\u5b58\u7a7a\u95f4\u7684\u5927\u5c0f\u3002\u4ece\u5b89\u5168\u7684\u89d2\u5ea6\u6765\u8bb2\uff0c\u5b83\u53ef\u4ee5\u5b9e\u73b0\u6bcf\u4e2a\u7528\u6237\u8fdb\u7a0b\u90fd\u6709\u72ec\u7acb\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u4ece\u800c\u5b9e\u73b0\u591a\u4e2a\u8fdb\u7a0b\u4e4b\u95f4\u4ee3\u7801\u548c\u6570\u636e\u7684\u9694\u79bb\u3002<\/li>\n<\/ul>\n<p>\u9664\u6b64\u4e4b\u5916\uff0c\u5f88\u591a\u6d88\u8d39\u7684\u7535\u5b50\u4ea7\u54c1\u90fd\u4f7f\u7528\u6269\u5c55\u7684\u5b89\u5168\u6a21\u5757\u786e\u4fdd\u6570\u636e\u5b89\u5168\uff1a<\/p>\n<ul>\n<li>\u5916\u90e8\u786c\u4ef6\u5b89\u5168\u6a21\u5757\uff1a\u6570\u636e\u7684\u5904\u7406\u4ea4\u7531\u5916\u90e8\u7684\u5b89\u5168\u6a21\u5757\u5b9e\u73b0\uff0c\u8fd9\u4e9b\u6a21\u5757\u80fd\u591f\u4fdd\u62a4\u81ea\u5df1\u7684\u8d44\u6e90\u548c\u5bc6\u94a5\u7b49\u6570\u636e\u7684\u5b89\u5168\u3002<\/li>\n<li>\u5185\u90e8\u96c6\u6210\u786c\u4ef6\u5b89\u5168\u6a21\u5757\uff1a\u4e00\u4e2a\u82af\u7247\u6709\u4e24\u4e2a\u6838\uff0c\u4e00\u4e2a\u666e\u901a\u6838\u548c\u4e00\u4e2a\u5b89\u5168\u6838\u3002<\/li>\n<\/ul>\n<\/blockquote>\n<p>TrustZone \u662f ARM \u4e3a\u5176 Armv8-M \u7cfb\u5217\u6838\u6240\u5efa\u7acb\u7684\u53ef\u9009\u7684\u5b89\u5168\u6269\u5c55\uff0c\u5176\u76ee\u7684\u662f\u4e3a\u5e7f\u6cdb\u7684\u5d4c\u5165\u5f0f\u5e94\u7528\u6784\u5efa\u5b89\u5168\u6846\u67b6\u6765\u62b5\u5fa1\u5404\u79cd\u53ef\u80fd\u7684\u653b\u51fb\u3002\u5728\u8be5\u8bbe\u8ba1\u4e2d\uff0c\u5904\u7406\u5668\u6709\u5b89\u5168\u548c\u975e\u5b89\u5168\u4e24\u79cd\u6a21\u5f0f\uff0c\u4e0d\u5b89\u5168\u7684\u5e94\u7528\u8f6f\u4ef6\u53ea\u80fd\u8bbf\u95ee\u4e0d\u5b89\u5168\u7684\u5185\u5b58\u3002\u4e0d\u540c\u4e8e Cortex-A \u5904\u7406\u5668\u7684\u5b9e\u73b0\uff0c\u5185\u5b58\u6620\u5c04\u65b9\u5f0f\u662f\u533a\u5206\u5b89\u5168\u548c\u5e38\u89c4\u6a21\u5f0f\u7684\u4f9d\u636e\uff0c\u5e76\u4e14\u5730\u5740\u7ffb\u8bd1\u662f\u5728\u5730\u5740\u8f6c\u6362\u4e2d\u81ea\u52a8\u5b8c\u6210\u7684\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u8fd8\u6709\u4ee5\u4e0b\u4e0d\u540c\u70b9\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th>Armv8-M<\/th>\n<th>Cortex-A<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5b89\u5168\u529f\u80fd\u5165\u53e3\u70b9<\/td>\n<td>\u652f\u6301\u591a\u4e2a\u5165\u53e3\u70b9<\/td>\n<td>\u4ec5\u652f\u6301\u5355\u4e2a\u5165\u53e3\u70b9<\/td>\n<\/tr>\n<tr>\n<td>\u975e\u5b89\u5168\u4e2d\u65ad<\/td>\n<td>\u652f\u6301<\/td>\n<td>\u4e0d\u652f\u6301<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e0b\u9762\u8fd9\u5f20\u56fe\u5c55\u793a\u4e86 Armv8-M \u7684 TrustZone \u662f\u5982\u4f55\u5728\u5904\u7406\u5668\u4e0a\u6dfb\u52a0\u5b89\u5168\u548c\u975e\u5b89\u5168\u64cd\u4f5c\u7684\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/trustzone%20a.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/trustzone%20a.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"trustzone a\" \/><\/div><\/p>\n<p>\u6211\u4eec\u5c06\u4ee5\u4e0b\u91cd\u8981\u6a21\u5757\u653e\u7f6e\u5728\u5b89\u5168\u6a21\u5f0f\u4e2d\uff1a<\/p>\n<ul>\n<li>\u5b89\u5168\u542f\u52a8\u52a0\u8f7d\u5668\u3002<\/li>\n<li>\u5b89\u5168\u5bc6\u94a5<\/li>\n<li>\u95ea\u5b58\u7f16\u7a0b\u652f\u6301<\/li>\n<li>\u9ad8\u4ef7\u503c\u8d44<\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/trustzone%20b.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/trustzone%20b.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"trustzone b\" \/><\/div><\/p>\n<h2>Driverlet<\/h2>\n<blockquote>\n<p>TrustZone \u53ef\u4ee5\u5f88\u597d\u7684\u9694\u79bb IO \u786c\u4ef6\uff0c\u4f46\u662f\u7f3a\u5c11\u5bf9\u73b0\u4ee3 IO \u8bbe\u5907\u7684\u9a71\u52a8\u652f\u6301\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8bba\u6587\u63d0\u51fa\u4e00\u79cd\u65b0\u9896\u7684\u9a71\u52a8\u7a0b\u5e8f Driverlet\u3002\u8be5\u9a71\u52a8\u662f\u5404\u4e2a\u5c0f\u9a71\u52a8\u7684\u6d3e\u751f\u7248\u672c\uff0c\u5728\u53d7\u4fe1\u4efb\u7684\u6267\u884c\u73af\u5883\u4e2d\u8fd0\u884c\uff0c\u76d1\u89c6\u7740\u9a71\u52a8\u548c\u8bbe\u5907\u4e4b\u95f4\u7684\u4ea4\u4e92\u3002<\/p>\n<p>Driverlet \u9a71\u52a8\u5177\u6709\u4ee5\u4e0b\u7684\u4f18\u70b9\uff1a\u6784\u5efa\u7b80\u5355\uff0c\u6613\u4e8e\u4f7f\u7528\uff0c\u5b89\u5168\u3002\u800c\u4e14\u6027\u80fd\u5728\u4e00\u4e2a\u53ef\u63a5\u53d7\u7684\u8303\u56f4\u5185\uff0c\u5f00\u9500\u5927\u7ea6\u662f\u672c\u5730\u9a71\u52a8\u7684 1.4 \u500d\u5230 2.7 \u500d\u3002<\/p>\n<\/blockquote>\n<h3>\u4ecb\u7ecd<\/h3>\n<p>Secure IO \u76ee\u524d\u5b58\u5728\u4e00\u4e2a\u5f88\u5927\u7684\u95ee\u9898\uff0c\u5c31\u662f\u9a71\u52a8\u8f6f\u4ef6\u6709\u5f88\u5927\u7684\u7a7a\u767d\u3002\u5373\u4f7f\u662f OPTEE \/ Trusty \u5f00\u53d1\u4e86\u8fd1\u5341\u5e74\uff0c\u8fd8\u662f\u7f3a\u5c11\u5bf9\u4e00\u4e9b IO \u7684\u652f\u6301\u3002\u5b9e\u73b0\u56f0\u96be\u662f\u4e00\u5927\u539f\u56e0\uff0c\u56e0\u4e3a\u5f00\u53d1\u8005\u5fc5\u987b\u4e86\u89e3\u5404\u4e2a\u8bbe\u5907\u7684\u7ec6\u8282\uff0c\u6bd4\u5982\u547d\u4ee4\/\u4f20\u8f93\u5bc4\u5b58\u5668\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff1fDMA \u662f\u600e\u4e48\u4ea4\u4e92\u7684\uff1f\u7b49\u7b49\u3002<\/p>\n<p>\u76f8\u6bd4\u4e8e\u5f00\u53d1\u65b0\u7684\u9a71\u52a8\uff0c\u73b0\u6709\u7684\u9a71\u52a8\u5df2\u7ecf\u975e\u5e38\u7684\u6210\u719f\uff0c\u975e\u5e38\u7684\u5b8c\u5584\u3002\u5982\u679c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u8fd9\u4e9b\u5df2\u6709\u7684\u9a71\u52a8\u5c31\u597d\u4e86\u3002\u5f53\u7136\uff0c\u4e5f\u786e\u5b9e\u6709\u4eba\u505a\u51fa\u4e86\u8fd9\u65b9\u9762\u7684\u5c1d\u8bd5\u3002\u4e3b\u8981\u6709\u4ee5\u4e0b\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li>\u5927\u91cf\u79fb\u690d\u73b0\u6709\u7684\u9a71\u52a8\u4ee3\u7801\u3002\u8fd9\u6837\u505a\u5de5\u4f5c\u91cf\u7279\u522b\u7684\u5927\uff0c\u4ee3\u7801\u89c4\u6a21\u53ef\u4ee5\u8fbe\u5230 K SLoC\u3002<\/li>\n<li>\u5265\u79bb trustlet \u4e0d\u9700\u8981\u7684\u4ee3\u7801\u90e8\u5206\u3002\u4ee3\u7801\u91cf\u786e\u5b9e\u53ef\u4ee5\u51cf\u5c11\uff0c\u4f46\u662f\u5f00\u53d1\u8005\u4ecd\u7136\u9700\u8981\u4e86\u89e3\u9a71\u52a8\u548c\u8bbe\u5907\u5982\u4f55\u5de5\u4f5c\u7684\u7ec6\u8282\u3002<\/li>\n<\/ul>\n<p>\u65e2\u7136\u79fb\u690d\u5de5\u4f5c\u5982\u6b64\u7684\u7e41\u6742\uff0c\u6211\u4eec\u5c31\u6362\u4e2a\u65b9\u5411\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u6211\u4eec\u4ecd\u7136\u4fdd\u7559\u73b0\u6709\u7684\u9a71\u52a8\uff0c\u5728 TrustZone \u4e2d\u5b9e\u73b0\u4e00\u4e2a Driverlet\uff0c\u7531 Driverlet \u5b8c\u6210\u5b89\u5168\u76f8\u5173\u7684\u64cd\u4f5c\u3002Driverlet \u4f1a\u5b8c\u6210\u4ee5\u4e0b\u51e0\u4e2a\u4e8b\u60c5\uff1a<\/p>\n<ul>\n<li>\u6267\u884c\u5df2\u6709\u7684\u6210\u719f\u7684\u8bbe\u5907\u9a71\u52a8\u3002<\/li>\n<li>\u8bb0\u5f55 driver \u548c device \u4e4b\u95f4\u7684\u4ea4\u4e92\u4e8b\u4ef6\u3002<\/li>\n<li>\u5f53 trustlet \u89e6\u53d1\u9a71\u52a8\u63a5\u53e3\u7684\u65f6\u5019\uff0cTEE \u5c31\u4f1a\u91cd\u73b0\u8bb0\u5f55\u4e0b\u7684\u4ea4\u4e92\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n<p>\u8fc7\u7a0b\u63cf\u8ff0\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240322192839333.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240322192839333.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20240322192839333\" \/><\/div><\/p>\n<p>\u8fd9\u6837\u7684\u4f5c\u6cd5\u6211\u4eec\u4f1a\u9047\u5230\u4e24\u79cd\u6311\u6218\u3002\u7b2c\u4e00\u4e2a\u5c31\u662f\u6b63\u786e\u6027\uff0c\u600e\u4e48\u4fdd\u8bc1\u590d\u73b0\u7684\u548c\u539f\u672c\u7684\u884c\u4e3a\u662f\u4e00\u81f4\u7684\uff1f\u7b2c\u4e8c\u4e2a\u6311\u6218\u5c31\u662f\u53ef\u8868\u8fbe\u6027\u3002\u6211\u4eec\u590d\u73b0\u7684\u8f93\u5165\u53ef\u4ee5\u8868\u8fbe\u51fa\u6240\u6709\u7684\u9a71\u52a8\u548c\u8bbe\u5907\u7684\u4ea4\u4e92\u4e8b\u4ef6\u5417\uff1f<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u7b2c\u4e00\u4e2a\u6311\u6218\uff0cdriverlet \u7684\u590d\u73b0\u884c\u4e3a\u5fc5\u987b\u548c\u539f\u672c\u7684\u4ea4\u4e92\u884c\u4e3a\u5bf9\u8bbe\u5907\u7684\u72b6\u6001\u6539\u53d8\u76f8\u540c\u3002\u57fa\u4e8e\u8fd9\u4e48\u4e00\u4e2a\u70b9\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4ea4\u4e92\u884c\u4e3a\u5206\u6210\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u5bf9\u8bbe\u5907\u72b6\u6001\u5f71\u54cd\u8f83\u5c0f\u7684\u4ea4\u4e92\uff0c\u4e00\u79cd\u662f\u5bf9\u8bbe\u5907\u72b6\u6001\u5f71\u54cd\u8f83\u5927\u7684\u4ea4\u4e92\u3002\u5bf9\u4e8e\u524d\u8005\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4e0d\u9700\u8981\u63d0\u4f9b\u7cbe\u786e\u7684\u590d\u73b0\u884c\u4e3a\uff0c\u5141\u8bb8\u6709\u4e00\u5b9a\u7684\u504f\u5dee\uff1b\u5bf9\u4e8e\u540e\u8005\uff0c\u6211\u4eec\u5c31\u9700\u8981\u9ad8\u7cbe\u5ea6\u7684\u590d\u73b0\u3002\u4e3a\u4e86\u89e3\u51b3\u7b2c\u4e8c\u4e2a\u6311\u6218\uff0c\u8fd9\u91cc\u5b9e\u73b0\u4e86\u4e00\u4e2a interaction template\u3002\u8be5\u6a21\u677f\u8bb0\u5f55\u4e86\u4ece trustlet\u3001\u8bbe\u5907\u3001TEE \u73af\u5883\u8f93\u5165\u6240\u671f\u5f85\u7684\u4e8b\u4ef6\uff0c\u4e5f\u8bb0\u5f55\u4e86\u590d\u73b0\u6a21\u5757\u53ef\u80fd\u7684\u8f93\u51fa\u4e8b\u4ef6\u3002<\/p>\n<p>\u901a\u8fc7\u8fd9\u4e9b\u505a\u6cd5\uff0c\u5f00\u53d1\u8005\u4e0d\u9700\u8981\u505a\u7279\u522b\u591a\u7684\u5de5\u4f5c\uff1bdriverlet \u4e5f\u6709 3~10 \u4e2a\u4ea4\u4e92\u6a21\u677f\u4ee5\u53ca 50~1500 \u4e2a\u4ea4\u4e92\u4e8b\u4ef6\uff1b\u4e0d\u9700\u8981\u7279\u522b\u5730\u4f9d\u8d56 TEE \u73af\u5883\uff1b\u4ee3\u7801\u89c4\u6a21\u4e5f\u4ec5\u6709 1000 SLoC\uff1b\u6027\u80fd\u4e5f\u53ea\u6709\u8f83\u5c0f\u7684\u6027\u80fd\u635f\u5931\u3002<\/p>\n<h3>\u52a8\u673a<\/h3>\n<p>\u76ee\u524d\uff0cSecure IO \u6709\u7740\u4e30\u5bcc\u7684\u5e94\u7528\uff0c\u4f8b\u5982\u5b89\u5168\u5b58\u50a8\u3001\u53ef\u4fe1\u611f\u77e5\u3001\u53ef\u4fe1 UI \u7b49\u3002\u800c\u4e14\uff0c\u6709\u4e00\u4e9b\u4e0d\u9519\u7684\u673a\u9047\uff1a<\/p>\n<ul>\n<li>Trustlet \u5bf9 IO \u7684\u6027\u80fd\u5e76\u4e0d\u654f\u611f\u3002<\/li>\n<li>Trustlet \u53ef\u4ee5\u63d0\u4f9b\u7b80\u5355\u7684 IO \u8bbe\u5907\u529f\u80fd\u3002<\/li>\n<li>Trustlet \u53ef\u4ee5\u5728\u7c97\u7c92\u5ea6\u7684\u65f6\u95f4\u5185\u5171\u4eab IO \u8bbe\u5907\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u6837\u6211\u4eec\u53ef\u4ee5\u5df2 IO \u6027\u80fd\u548c\u7ec6\u7c92\u5ea6\u5171\u4eab\u4e3a\u4ee3\u4ef7\uff0c\u5b9e\u73b0\u7b80\u5355\u7684\u9a71\u52a8\u7a0b\u5e8f\u4ee5\u53ca\u5bf9\u5176\u5b89\u5168\u6027\u505a\u51fa\u4fdd\u8bc1\u3002<\/p>\n<p>\u9664\u4e86\u4e0a\u8ff0\u4ee5\u5916\uff0c\u4e5f\u6709\u4e86\u5f88\u591a\u73b0\u6709\u6280\u672f\u7684\u652f\u6301\uff1a<\/p>\n<ul>\n<li>\u6210\u719f\u7684\u8bbe\u5907\u9a71\u52a8\uff1a\u73b0\u6709\u7684\u8bbe\u5907\u9a71\u52a8\u6709\u7740\u826f\u597d\u7684\u6027\u80fd\uff0c\u5b8c\u6574\u7684\u8bbe\u5907\u652f\u6301\u4ee5\u53ca\u7ec6\u7c92\u5ea6\u7684\u5171\u4eab\u3002<\/li>\n<li>\u5df2\u6709\u7684\u89e3\u51b3\u65b9\u5f0f\uff08Trim down\uff09\uff1a\u5168\u90e8\u79fb\u690d\u6216\u8005\u662f\u90e8\u5206\u79fb\u690d\u3002<\/li>\n<li>\u4e0d\u592a\u53ef\u884c\u7684\u91cd\u6784\u65b9\u6848\u3002<\/li>\n<li>\u5206\u533a\uff1a\u53ef\u4ee5\u5bf9\u9a71\u52a8\u8fdb\u884c\u5206\u533a\uff0c\u53ea\u5bf9\u5b89\u5168\u654f\u611f\u7684\u5206\u533a\u5728\u5b89\u5168\u6a21\u5f0f\u4e0b\u5b8c\u6210\u76f8\u5173\u64cd\u4f5c\u3002\u4f46\u662f\u5462\uff0c\u4e5f\u4f1a\u9047\u5230\u4e24\u79cd\u963b\u788d\u3002\u4e00\u662f\u6211\u4eec\u7684\u89e3\u51b3\u65b9\u5f0f\u4e5f\u662f\u57fa\u4e8e Trim down\uff0c\u9700\u8981\u91cd\u65b0\u5f00\u53d1\u548c\u89e3\u51b3\u5185\u6838\u4f9d\u8d56\u3002\u5176\u6b21\u662f\u8981\u4ed4\u7ec6\u8003\u8651\u5b89\u5168\u73af\u5883\u548c\u975e\u5b89\u5168\u73af\u5883\u4e4b\u95f4\u7684\u63a5\u53e3\u3002<\/li>\n<\/ul>\n<h3>\u89e3\u51b3\u65b9\u6cd5<\/h3>\n<h4>\u7cfb\u7edf\u73af\u5883<\/h4>\n<ul>\n<li>SoC \u786c\u4ef6<\/li>\n<li>\u76ee\u6807 IO \u8bbe\u5907\n<ul>\n<li>\u8bbe\u5907\u72b6\u6001\u673a<\/li>\n<li>\u9a71\u52a8\u548c\u8bbe\u5907\u4e4b\u95f4\u7684\u4ea4\u4e92<\/li>\n<li>\u72b6\u6001\u6539\u53d8\u4e8b\u4ef6\uff1a\u4e00\u79cd\u662f\u5168\u90e8\u7684\u8f93\u51fa\u4e8b\u4ef6\uff1b\u53e6\u4e00\u79cd\u662f\u8f93\u5165\u4e8b\u4ef6\u7684\u5b50\u96c6\uff0c\u5305\u62ec\u4e2d\u65ad\u3001\u670d\u52a1\u54cd\u5e94\u3001\u5f71\u54cd\u81f3\u5c11\u4e0b\u4e00\u4e2a\u63a5\u4e0b\u6765\u7684\u8f93\u51fa\u4e8b\u4ef6\u7684\u5bc4\u5b58\u5668\u6216\u8005\u8d21\u732e\u5185\u5b58\u7684\u8bfb\u4e8b\u4ef6\u3002\u8fd9\u6837\u5b9a\u4e49\u72b6\u6001\u6539\u53d8\u4e8b\u4ef6\u975e\u5e38\u7684\u5bbd\u6cdb\uff0c\u53ef\u80fd\u4f1a\u628a\u6210\u529f\u7684\u4e8b\u4ef6\u88ab\u5224\u5b9a\u4e3a\u9519\u8bef\u7684\u4e8b\u4ef6\uff0c\u4f46\u662f\u4fdd\u8bc1\u4e86\u9519\u8bef\u7684\u4e8b\u4ef6\u4e0d\u4f1a\u88ab\u8bef\u5224\u4e3a\u6210\u529f\u7684\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>\u6211\u4eec\u7684\u65b9\u5f0f<\/h4>\n<p>\u9009\u62e9\u6027\u91cd\u7528\u72b6\u6001\u6539\u53d8\u6240\u8bf1\u5bfc\u7684\u9a71\u52a8\u548c\u8bbe\u5907\u4e4b\u95f4\u7684\u4ea4\u4e92\u3002\u6838\u5fc3\u7684\u673a\u5236\u6709\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>\u8bbe\u8ba1\u524d\u63d0\uff1a\u914d\u7f6e\u8bbe\u5907\u4f7f\u5176\u7981\u6b62\u4e2d\u65ad\u3001\u5e76\u53d1\u4f5c\u4e1a\u4ee5\u53ca\u7535\u91cf\u7ba1\u7406\u3002<\/li>\n<li>\u8bb0\u5f55\u4e8b\u4ef6<\/li>\n<li>\u590d\u73b0\u4e8b\u4ef6<\/li>\n<\/ul>\n<h4>\u53ef\u884c\u7684\u539f\u56e0<\/h4>\n<ul>\n<li>\u72b6\u6001\u6539\u53d8\u7684\u76f8\u5173\u7684\u4e8b\u4ef6\u662f\u6709\u5e8f\u7684\u3002<\/li>\n<li>\u53ef\u4ee5\u6539\u53d8\u5bf9\u8bbe\u5907\u7684\u6fc0\u52b1\u65b9\u5f0f\uff0c\u540c\u65f6\u4e5f\u4fdd\u8bc1\u5728\u540c\u4e00\u6761\u72b6\u6001\u8def\u5f84\u4e0a\u3002\u5982\u56fe 2 \u7684 b\uff0c\u5373\u4f7f\u662f\u8f93\u51fa\u4e8b\u4ef6\u548c\u539f\u672c\u6b63\u5e38\u7684\u9a71\u52a8\u7684\u8f93\u51fa\u4e8b\u4ef6\u4e0d\u76f8\u540c\uff08\u53c2\u6570\u7b49\uff09\uff0c\u4f46\u662f\u6700\u540e\u8bbe\u5907\u8fd4\u56de\u7684\u72b6\u6001\u76f8\u540c\u3002<\/li>\n<li>\u901a\u8fc7\u91cd\u7f6e\u7684\u65b9\u5f0f\u6765\u89e3\u51b3\u72b6\u6001\u5f02\u5e38\u7684\u95ee\u9898\u3002<\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240323210332351.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240323210332351.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20240323210332351\" \/><\/div><\/p>\n<h4>\u5c40\u9650\u6027<\/h4>\n<p>\u7b2c\u4e00\uff0cdriverlet \u4f9d\u8d56\u4e8e\u8bbe\u5907\u72b6\u6001\u673a\u4e4b\u95f4\u7684\u6570\u636e\u72ec\u7acb\u6027\uff1b\u7b2c\u4e8c\uff0cdriverlet \u4f9d\u8d56\u6b63\u786e\u7684\u5b8c\u6574\u7684\u539f\u6709\u9a71\u52a8\uff0c\u4e0d\u6392\u9664\u539f\u6709\u9a71\u52a8\u6709 bug \u7684\u60c5\u51b5\u3002<\/p>\n<h3>\u8bb0\u5f55<\/h3>\n<p>\u5f00\u53d1\u8005\u8fd0\u884c\u591a\u4e2a\u9a71\u52a8\u7a0b\u5e8f\uff0c\u5728\u6bcf\u4e2a\u8fd0\u884c\u5f53\u4e2d\uff0c\u4f7f\u7528\u4e00\u4e2a\u7279\u6b8a\u7684\u8bf7\u6c42\u3002\u5f53\u8bb0\u5f55\u5668(recorder\u8bc6\u522b\u5230\u8fd9\u4e2a\u7279\u6b8a\u7684\u8bf7\u6c42\u4e4b\u540e\uff0c\u8bb0\u5f55\u4e8b\u4ef6\u5e76\u751f\u6210\u4e00\u4e2a\u4ea4\u4e92\u6a21\u677f\u3002\u4e00\u65e6\u8bb0\u5f55\u6210\u529f\uff0c\u8bb0\u5f55\u5668\u5c31\u4f1a\u5bf9\u8fd9\u4e2a\u6a21\u677f\u8fdb\u884c\u7b7e\u540d\u4f7f\u4e4b\u4e0d\u53ef\u4ee5\u518d\u88ab\u4fee\u6539\uff0c\u5e76\u4e14\u53cd\u9988\u4e00\u4e2a\u8f93\u5165\u7a7a\u95f4\u8986\u76d6\u7387\u7684\u4fe1\u606f\u3002\u5982\u679c\u5f00\u53d1\u8005\u8ba4\u4e3a\u6ca1\u6709\u8fbe\u5230\u81ea\u5df1\u6240\u671f\u671b\u7684\u8986\u76d6\u7387\uff0c\u53ef\u4ee5\u91cd\u590d\u8fdb\u884c\u8bb0\u5f55\uff0c\u76f4\u5230\u6ee1\u8db3\u4e3a\u6b62\u3002<\/p>\n<h4>\u4ea4\u4e92\u6a21\u677f<\/h4>\n<p>\u4ea4\u4e92\u6a21\u677f\u4f1a\u6d89\u53ca\u5230\u4e0b\u8868\u6240\u6d89\u53ca\u5230\u7684\u4e8b\u4ef6\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240323212552515.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240323212552515.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20240323212552515\" \/><\/div><\/p>\n<ul>\n<li>\u8f93\u5165\u4e8b\u4ef6 $V = &lt;I, C, A&gt;$\uff0c\u8868\u793a\u4ece\u63a5\u53e3 $I$ \u8f93\u5165\u7684\u503c $V$\uff0c\u7ea6\u675f $C$\uff0c\u4ee5\u53ca\u8f93\u5165\u5c5e\u6027 $A$\u3002<\/li>\n<li>\u8f93\u51fa\u4e8b\u4ef6 $&lt;I, V&gt;$\uff0c\u8868\u793a\u5c06\u503c $V$ \u5199\u5165\u5230\u63a5\u53e3 $I$\u5f53\u4e2d\u3002<\/li>\n<li>\u5143\u4e8b\u4ef6\uff0c<em>delay<\/em> \u6216\u8005\u662f <em>poll<\/em> $&lt;I, E, Cond&gt;$\u3002\u540e\u8005\u8868\u793a\u63a5\u53e3 $I$ \u5728\u7ec8\u6b62\u6761\u4ef6\u4e3a $Cond$ \u7684\u60c5\u51b5\u4e0b\uff0c\u5faa\u73af\u6267\u884c $E$ \u5faa\u73af\u4f53\u3002<\/li>\n<\/ul>\n<h4>\u6311\u6218<\/h4>\n<ul>\n<li>\u5982\u4f55\u53d1\u73b0\u8f93\u5165\u548c\u8f93\u51fa\u4e8b\u4ef6\u4e4b\u95f4\u5b58\u5728\u7684\u56e0\u679c\u5173\u7cfb\uff1f<\/li>\n<\/ul>\n<p>\u200b   \u6211\u4eec\u4e0d\u80fd\u81ea\u7136\u5730\u4f7f\u7528\u8f93\u5165\u8f93\u51fa\u7684\u6570\u636e\u7684\u4e0d\u540c\u6765\u53d1\u73b0\u56e0\u679c\u5173\u7cfb\u3002\u56e0\u4e3a\u4e24\u8005\u4e4b\u95f4\u6ca1\u6709\u5fc5\u7136\u7684\u8054\u7cfb\u3002\u89e3\u51b3\u65b9\u5f0f\u662f<strong>\u9009\u62e9\u6027\u6807\u5fd7\u6267\u884c<\/strong>\u3002\u5f53\u53d1\u73b0\u6709\u7ea6\u675f\u6761\u4ef6\u7684\u65f6\u5019\uff0c\u8bb0\u5f55\u5668\u4f1a\u590d\u5236\u4e00\u4e2a\u65b0\u8fdb\u7a0b\uff0c\u8ba9\u65b0\u8fdb\u7a0b\u6267\u884c\u8fd9\u4e2a\u7ea6\u675f\u6761\u4ef6\u4e0d\u6ee1\u8db3\u7684\u60c5\u51b5\u3002\u7136\u540e\u6bd4\u8f83\u8fd9\u4e24\u4e2a\u8fdb\u7a0b\u63a5\u4e0b\u6765\u7684\u72b6\u6001\u8f6c\u53d8\u5e8f\u5217\u3002\u5982\u679c\u6bd4\u8f83\u53d1\u73b0\u4e0d\u540c\uff0c\u6211\u4eec\u53ef\u4ee5\u603b\u7ed3\u51fa\uff0c\u8fd9\u662f\u4e00\u4e2a\u72b6\u6001\u6539\u53d8\u4e8b\u4ef6\uff0c\u5c31\u5fc5\u987b\u5728\u4e00\u4e2a\u76f8\u540c\u7684\u8bbe\u5907\u72b6\u6001\u6539\u53d8\u76f8\u540c\u7684\u8def\u5f84\u4e0a\u3002\u4f8b\u5b50\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240323214715215.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20240323214715215.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20240323214715215\" \/><\/div><\/p>\n<ul>\n<li>\u5982\u4f55\u53d1\u73b0\u8f93\u5165\u548c\u8f93\u51fa\u4e8b\u4ef6\u4e4b\u95f4\u7684\u6570\u636e\u4f9d\u8d56\uff1f<\/li>\n<\/ul>\n<p>\u200b   \u901a\u8fc7\u52a8\u6001\u7684\u63a9\u7801\u8ffd\u8e2a\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\u56fe 3 \u6240\u793a\u3002\u6211\u4eec\u5bf9 blkid \u6253\u4e0a\u63a9\u7801\uff0c\u7136\u540e\u5728 write \u7684\u65f6\u5019\uff0c\u53d1\u73b0\u4e86 SDARG \u4ee5\u53ca\u6253\u8fc7\u63a9\u7801\u7684 blk\uff0c\u4e8e\u662f\u5c31\u89e6\u53d1\u4e00\u4e2a\u5305\u542b blkid \u4ee5\u53ca\u76f8\u5e94\u64cd\u4f5c\u7684\u8f93\u51fa\u4e8b\u4ef6\u3002<\/p>\n<p>\u200b   \u7136\u800c\u8fd9\u4e2a\u63a9\u7801\u6709\u4e00\u4e2a\u95ee\u9898\uff0c\u6700\u591a\u53ea\u80fd\u8bc6\u522b\u51fa 8 \uff080x7 \u7684\u4e8c\u8fdb\u5236\u4e3a b111\uff09\u4e2a\u6709\u5173\u7cfb\u7684 id\u3002\u5bf9\u4e8e DMA \u64cd\u4f5c\uff0c\u5982\u679c\u751f\u6210\u4e86 8 \u4e2a\u4ee5\u4e0a\u7684\u63cf\u8ff0\u7b26\u600e\u4e48\u529e\u5462\uff1f\u8fd9\u91cc\u5c31\u7b80\u5355\u7684\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\uff1a<strong>\u8981\u6c42\u6a21\u677f\u5fc5\u987b\u5728\u8bb0\u5f55\u8fd0\u884c\u7684\u65f6\u5019\u5fc5\u987b\u751f\u6210\u76f8\u540c\u6570\u91cf\u7684\u63cf\u8ff0\u7b26<\/strong>\u3002<\/p>\n<ul>\n<li>\u5982\u4f55\u8bb0\u5f55\u4e00\u4e2a\u8f6e\u8be2\u4e8b\u4ef6\uff1f<\/li>\n<\/ul>\n<p>\u200b   \u901a\u8fc7\u9759\u6001\u5faa\u73af\u5206\u6790\u3002\u9759\u6001\u5206\u6790\u4ee3\u7801\uff0c\u901a\u5e38\u8fd9\u4e9b\u4ee3\u7801\u903b\u8f91\u5f88\u7b80\u5355\u3002<\/p>\n<h3>\u590d\u73b0<\/h3>\n<p>\u590d\u73b0\uff08replay\uff09\u7684\u65b9\u5f0f\uff1aTEE \u7684 trustlet \u7b80\u5355\u5730\u94fe\u63a5\u590d\u73b0\u5668\uff08replayer\uff09\u548c\u538b\u7f29\u4ea4\u4e92\u6a21\u677f\u4f5c\u4e3a\u5e93\uff0c\u8fd9\u4e2a\u6700\u540e\u88ab\u4f5c\u4e3a\u4e86 driverlet\u3002\u590d\u73b0\u5668\u4f1a\u5b8c\u6210\u4ee5\u4e0b\u7684\u5de5\u4f5c\uff1a<\/p>\n<ul>\n<li>\u9009\u62e9\u4e00\u4e2a\u4ea4\u4e92\u6a21\u7248\uff1a\u9996\u5148\u6211\u4eec\u9700\u8981\u4f7f\u7528 TEE \u6765\u89e3\u538b\u7f29\u6a21\u677f\uff0c\u4ece\u5df2\u6709\u7684\u6a21\u7248\u4e2d\u9009\u62e9<strong>\u6ee1\u8db3 trustlet \u8f93\u5165\u7ea6\u675f<\/strong>\u7684\u6a21\u7248\u3002\u540c\u65f6\uff0c\u6211\u4eec\u4e5f<strong>\u53ea\u80fd\u9009\u62e9\u4e00\u4e2a\u6a21\u7248<\/strong>\u4ee5\u907f\u514d\u72b6\u6001\u8def\u5f84\u88ab\u6253\u4e71\u3002\u5982\u679c\u6b64\u65f6\u6ca1\u6709\u6a21\u7248\u53ef\u4f9b\u9009\u62e9\uff0c\u6211\u4eec\u5c31\u53cd\u9988\u4e00\u4e2a\u9519\u8bef\u3002<\/li>\n<li>\u5b9e\u4f8b\u5316\u6a21\u7248\uff1a\u4fdd\u7559\u6a21\u677f\u4e2d\u94fe\u63a5\u7684\u8f93\u5165\u8f93\u51fa\u503c\uff0c\u5e76\u5c06\u4ed6\u4eec\u72ec\u7acb\u547d\u540d\u3002\u5728\u5b9e\u4f8b\u5316\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c<strong>\u76f8\u5173\u7684\u5730\u5740\u662f\u7269\u7406\u8bbe\u5907\u7684\u5730\u5740<\/strong>\uff0c\u9700\u8981\u5c06\u5176<strong>\u91cd\u65b0\u6620\u5c04\u7684 TEE \u7684\u865a\u62df\u5730\u5740<\/strong>\u4e0a\u3002<\/li>\n<li>\u6267\u884c\u4e8b\u4ef6\uff1a\u590d\u73b0\u5668\u5355\u7ebf\u7a0b\u3001\u987a\u5e8f\u6267\u884c\u8fd9\u4e9b\u4e8b\u4ef6\u3002\u540c\u65f6\u4e5f\u8981\u7ef4\u62a4\u4e24\u4e2a\u4e0a\u4e0b\u6587\uff0c\u4e00\u4e2a\u539f\u59cb\u9a71\u52a8\u5668\u6240\u4ea7\u751f\u7684\u4e0a\u4e0b\u6587\uff0c\u4e00\u4e2a\u4e2d\u65ad\u5904\u7406\u51fd\u6570\u7684\u4e0a\u4e0b\u6587\u3002<\/li>\n<li>\u91cd\u7f6e\u8bbe\u5907\uff1a\u5f53\u9047\u5230\u4ee5\u4e0b\u4e24\u79cd\u60c5\u51b5\u7684\u65f6\u5019\u4f1a\u8f6f\u91cd\u7f6e\u8bbe\u5907\u3002\u4e00\u662f\u5728\u76f8\u90bb\u4e24\u4e2a\u4ea4\u4e92\u6a21\u677f\u7684\u6267\u884c\u4e4b\u95f4\uff0c\u53e6\u4e00\u4e2a\u662f\u8bbe\u5907\u72b6\u6001\u53d1\u6563\u3002\u5982\u679c\u8f6f\u91cd\u7f6e\u4e4b\u540e\u4ecd\u7136\u6ca1\u6709\u89e3\u51b3\u9519\u8bef\u73b0\u8c61\uff0c\u5219\u9700\u8981\u4e2d\u65ad\u6267\u884c\u5e76\u8f6c\u50a8\u8c03\u7528\u6808\u4fe1\u606f\u3002<\/li>\n<li>\u81ea\u6211\u5b89\u5168\u5f3a\u5316\uff1a\u6709\u4ee5\u4e0b\u56db\u79cd\u65b9\u5f0f\uff0c\u68c0\u67e5\u8f93\u5165\u7684\u6a21\u7248\u7b7e\u540d\uff1b\u53ea\u63a5\u53d7 trustlet \u7684\u8f93\u5165\uff1b\u5e7f\u6cdb\u7684\u8fb9\u754c\u68c0\u67e5\uff1b\u51cf\u5c11\u5e76\u53d1\u6267\u884c\u3002<\/li>\n<\/ul>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<p><a href=\"https:\/\/developer.arm.com\/documentation\/100690\/0201\/Arm-TrustZone-technology\">ARM Developer TrustZone \u624b\u518c<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Minimum Viable Device Drivers for ARM TrustZone \u8bba\u6587\u9605\u8bfb\u7684\u4e00\u4e9b\u8bb0\u5f55\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-91","post","type-post","status-publish","format-standard","hentry","category-paper"],"_links":{"self":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts\/91","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/comments?post=91"}],"version-history":[{"count":0,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts\/91\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/media?parent=91"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/categories?post=91"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/tags?post=91"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}