{"id":967,"date":"2026-10-17T01:00:00","date_gmt":"2026-10-16T16:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=967"},"modified":"2026-10-16T23:51:31","modified_gmt":"2026-10-16T14:51:31","slug":"qs-riscv-pmp-region-priority-20261016","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=967","title":{"rendered":"RISC-V\u306ePMP\u3001\u30e1\u30e2\u30ea\u9818\u57df\u306e\u5883\u754c\u3068\u512a\u5148\u9806\u4f4d\u3067\u30a2\u30af\u30bb\u30b9\u3092\u5b88\u308b"},"content":{"rendered":"<p>\u8aad\u307f\u66f8\u304d\u3092\u8a31\u53ef\u3057\u305f\u30e1\u30e2\u30ea\u9818\u57df\u306a\u306e\u306b\u3001\u305d\u306e\u4e2d\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u62d2\u5426\u3055\u308c\u308b\u3002RISC-V\u306ePMP\uff08Physical Memory Protection\u3001\u7269\u7406\u30e1\u30e2\u30ea\u4fdd\u8b77\uff09\u3067\u306f\u3001\u6a29\u9650\u306e\u30d3\u30c3\u30c8\u3060\u3051\u3092\u898b\u3066\u3082\u3001\u3053\u306e\u7406\u7531\u304c\u5206\u304b\u3089\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u8907\u6570\u306e\u9818\u57df\u304c\u91cd\u306a\u308b\u3068\u304d\u306e\u512a\u5148\u9806\u4f4d\u3068\u3001\u4e00\u5ea6\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u304c\u89e6\u308c\u308b\u7bc4\u56f2\u3082\u5224\u5b9a\u306b\u5165\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>PMP\u306f\u3001\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u5b9f\u884c\u5358\u4f4d\u3067\u3042\u308bhart\u3054\u3068\u306b\u3001\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u306e\u9818\u57df\u3078\u8aad\u307f\u53d6\u308a\u30fb\u66f8\u304d\u8fbc\u307f\u30fb\u547d\u4ee4\u5b9f\u884c\u306e\u6a29\u9650\u3092\u8a2d\u5b9a\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u57fa\u672c\u306ePMP\u3092\u6271\u3044\u3001\u4e8c\u3064\u306e\u9818\u57df\u3068\u5c0f\u3055\u306a\u30a2\u30af\u30bb\u30b9\u4f8b\u304b\u3089\u3001\u8a2d\u5b9a\u3092\u8aad\u3080\u9806\u5e8f\u3092\u6574\u7406\u3057\u307e\u3059\u3002<sup><a href=\"#ref-1\">[1]<\/a><\/sup><\/p>\n<section class=\"influvetor-quick-summary\" aria-label=\"\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>\u30a2\u30af\u30bb\u30b9\u7bc4\u56f2\u306e\u3069\u308c\u304b1\u30d0\u30a4\u30c8\u306b\u4e00\u81f4\u3059\u308b\u8a2d\u5b9a\u306e\u3046\u3061\u3001\u756a\u53f7\u304c\u6700\u3082\u5c0f\u3055\u3044PMP\u30a8\u30f3\u30c8\u30ea\u30fc\u304c\u5224\u5b9a\u3092\u62c5\u5f53\u3057\u307e\u3059\u3002\u5e83\u3044\u9818\u57df\u306e\u8a31\u53ef\u3092\u8db3\u3057\u5408\u308f\u305b\u308b\u4ed5\u7d44\u307f\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<li>\u9078\u3070\u308c\u305f\u30a8\u30f3\u30c8\u30ea\u30fc\u304c\u3001\u305d\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u306e\u5168\u30d0\u30a4\u30c8\u3092\u8986\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u90e8\u3057\u304b\u8986\u308f\u306a\u3051\u308c\u3070\u3001\u6a29\u9650\u30d3\u30c3\u30c8\u3084M\u30e2\u30fc\u30c9\u306e\u6761\u4ef6\u3092\u898b\u308b\u524d\u306b\u5931\u6557\u3057\u307e\u3059\u3002<\/li>\n<li>\u4e00\u3064\u306e\u547d\u4ee4\u304c\u8907\u6570\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u3078\u5206\u304b\u308c\u308b\u5834\u5408\u306f\u3001\u305d\u308c\u305e\u308c\u3092\u691c\u67fb\u3057\u307e\u3059\u3002\u4f8b\u5916\u304c\u8d77\u304d\u3066\u3082\u3001\u5148\u306b\u901a\u3063\u305f\u66f8\u304d\u8fbc\u307f\u307e\u3067\u5143\u306b\u623b\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>PMP\u3067\u7d44\u307f\u5408\u308f\u305b\u308b\u306e\u306f\u3001\u9818\u57df\u3068\u30a2\u30af\u30bb\u30b9\u6a29\u9650<\/h2>\n<p>PMP\u306e\u8a2d\u5b9a\u5358\u4f4d\u3092<strong>\u30a8\u30f3\u30c8\u30ea\u30fc<\/strong>\u3068\u547c\u3073\u307e\u3059\u3002\u30a8\u30f3\u30c8\u30ea\u30fc\u306b\u306f\u30a2\u30c9\u30ec\u30b9\u7bc4\u56f2\u3092\u6307\u5b9a\u3059\u308b\u60c5\u5831\u3068\u3001\u8aad\u307f\u53d6\u308a\u306eR\u3001\u66f8\u304d\u8fbc\u307f\u306eW\u3001\u547d\u4ee4\u5b9f\u884c\u306eX\u306a\u3069\u3092\u6301\u305f\u305b\u307e\u3059\u3002\u305f\u3068\u3048\u3070R=1\u3001W=0\u3001X=0\u306a\u3089\u3001\u305d\u306e\u6a29\u9650\u304c\u9069\u7528\u3055\u308c\u308b\u30a2\u30af\u30bb\u30b9\u306b\u5bfe\u3057\u3066\u3001\u8aad\u307f\u53d6\u308a\u3092\u8a31\u3057\u3001\u66f8\u304d\u8fbc\u307f\u3068\u547d\u4ee4\u5b9f\u884c\u3092\u62d2\u5426\u3057\u307e\u3059\u3002<sup><a href=\"#ref-1\">[1]<\/a><\/sup><\/p>\n<p>\u9818\u57df\u306e\u6307\u5b9a\u306b\u3082\u65b9\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002NAPOT\u306f\u3001\u30b5\u30a4\u30ba\u304c8\u30d0\u30a4\u30c8\u4ee5\u4e0a\u306e2\u306e\u3079\u304d\u4e57\u3067\u3001\u958b\u59cb\u4f4d\u7f6e\u3082\u305d\u306e\u30b5\u30a4\u30ba\u306e\u5883\u754c\u306b\u305d\u308d\u3063\u305f\u9818\u57df\u3092\u8868\u3057\u307e\u3059\u3002TOR\u306f\u3001\u524d\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u8a2d\u5b9a\u3092\u4e0b\u7aef\u3001\u73fe\u5728\u306e\u8a2d\u5b9a\u3092\u4e0a\u7aef\u3068\u3057\u3066\u7bc4\u56f2\u3092\u8868\u3057\u307e\u3059\u3002OFF\u306b\u3057\u305f\u30a8\u30f3\u30c8\u30ea\u30fc\u306f\u30a2\u30c9\u30ec\u30b9\u306b\u4e00\u81f4\u3057\u307e\u305b\u3093\u3002\u4eca\u56de\u306e\u4f8b\u306f\u3001\u4e8c\u3064\u306e\u9818\u57df\u3092\u72ec\u7acb\u306b\u6307\u5b9a\u3057\u3084\u3059\u3044NAPOT\u3092\u4f7f\u3044\u307e\u3059\u3002<sup><a href=\"#ref-2\">[2]<\/a><\/sup><\/p>\n<p>\u4ee5\u4e0b\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u8aac\u660e\u7528\u3067\u3001\u7279\u5b9a\u306e\u6a5f\u5668\u306e\u30e1\u30e2\u30ea\u914d\u7f6e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4f8b\u306e\u5927\u304d\u3055\u3092\u8868\u73fe\u3067\u304d\u308b\u7c92\u5ea6\u306ePMP\u304c\u5b9f\u88c5\u3055\u308c\u3001\u4f7f\u7528\u3059\u308b\u4e8c\u3064\u4ee5\u5916\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306fOFF\u3068\u3057\u307e\u3059\u3002\u307e\u305a\u306f\u901a\u5e38\u306e\u30e6\u30fc\u30b6\u30fc\u5074\u306eU\u30e2\u30fc\u30c9\u3001\u307e\u305f\u306fOS\u5074\u306eS\u30e2\u30fc\u30c9\u3092<strong>\u5b9f\u52b9\u6a29\u9650<\/strong>\u3068\u3059\u308b\u30a2\u30af\u30bb\u30b9\u3092\u8003\u3048\u307e\u3059\u3002\u3053\u3053\u3067\u5b9f\u52b9\u6a29\u9650\u3068\u306f\u3001\u5b9f\u884c\u4e2d\u306e\u30e2\u30fc\u30c9\u540d\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u306e\u691c\u67fb\u306b\u4f7f\u308f\u308c\u308b\u6a29\u9650\u3067\u3059\u3002<\/p>\n<div role=\"region\" aria-label=\"\u8aac\u660e\u7528\u306ePMP\u9818\u57df\u8a2d\u5b9a\" tabindex=\"0\" style=\"overflow-x:auto;\">\n<table style=\"min-width:610px;\">\n<caption>\u88681\u3000\u8aac\u660e\u306b\u4f7f\u3046\u4e8c\u3064\u306e\u9818\u57df\u3002\u4e0a\u7aef\u306e\u6b21\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u7bc4\u56f2\u306b\u542b\u3081\u307e\u305b\u3093\u3002<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">\u30a8\u30f3\u30c8\u30ea\u30fc<\/th>\n<th scope=\"col\">\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u306e\u7bc4\u56f2<\/th>\n<th scope=\"col\">\u5927\u304d\u3055<\/th>\n<th scope=\"col\">R \/ W \/ X<\/th>\n<th scope=\"col\">L<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">0\uff1a\u5c0f\u3055\u3044\u9818\u57df<\/th>\n<td>0x1800\u301c0x1BFF<\/td>\n<td>1,024\u30d0\u30a4\u30c8<\/td>\n<td>1 \/ 0 \/ 0<\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">1\uff1a\u5e83\u3044\u9818\u57df<\/th>\n<td>0x1000\u301c0x1FFF<\/td>\n<td>4,096\u30d0\u30a4\u30c8<\/td>\n<td>1 \/ 1 \/ 0<\/td>\n<td>0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5c0f\u3055\u3044\u9818\u57df\u306f\u3001\u5e83\u3044\u9818\u57df\u306e\u5185\u5074\u306b\u3042\u308a\u307e\u3059\u3002\u5e83\u3044\u9818\u57df\u3092\u8aad\u307f\u66f8\u304d\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3064\u3064\u3001\u305d\u306e\u4e00\u90e8\u3092\u8aad\u307f\u53d6\u308a\u3060\u3051\u306b\u3057\u305f\u3044\u3001\u3068\u3044\u3046\u914d\u7f6e\u3067\u3059\u3002L\u306f\u5f8c\u3067\u6271\u3046\u30ed\u30c3\u30af\u306e\u30d3\u30c3\u30c8\u3067\u3001\u3053\u3053\u3067\u306f\u4e21\u65b90\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u91cd\u306a\u3063\u305f\u9818\u57df\u3067\u306f\u3001\u756a\u53f7\u306e\u5c0f\u3055\u3044\u8a2d\u5b9a\u304c\u5148\u306b\u6c7a\u307e\u308b<\/h2>\n<p>PMP\u306f\u3001\u30e1\u30e2\u30ea\u64cd\u4f5c\u304c\u89e6\u308c\u308b<strong>\u3069\u308c\u304b1\u30d0\u30a4\u30c8<\/strong>\u306b\u4e00\u81f4\u3059\u308b\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u63a2\u3057\u3001\u305d\u306e\u4e2d\u3067\u756a\u53f7\u304c\u6700\u3082\u5c0f\u3055\u3044\u3082\u306e\u3092\u9078\u3073\u307e\u3059\u3002\u5c0f\u3055\u3044\u9818\u57df\u304c\u81ea\u52d5\u7684\u306b\u512a\u5148\u3055\u308c\u308b\u306e\u3067\u306f\u306a\u304f\u3001<strong>\u756a\u53f7\u304c\u512a\u5148\u9806\u4f4d\u3092\u6c7a\u3081\u308b<\/strong>\u70b9\u304c\u5927\u5207\u3067\u3059\u3002<sup><a href=\"#ref-3\">[3]<\/a><\/sup><\/p>\n<p>\u305f\u3068\u3048\u30700x1800\u301c0x1803\u30784\u30d0\u30a4\u30c8\u3092\u66f8\u304d\u8fbc\u3080\u5834\u5408\u3001\u30a8\u30f3\u30c8\u30ea\u30fc0\u30681\u306e\u4e21\u65b9\u304c\u5168\u4f53\u306b\u4e00\u81f4\u3057\u307e\u3059\u3002\u9078\u3070\u308c\u308b\u306e\u306f0\u3067\u3059\u3002\u305d\u3053\u3067W=0\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u66f8\u304d\u8fbc\u307f\u306f\u62d2\u5426\u3055\u308c\u307e\u3059\u3002\u5f8c\u308d\u306b\u3042\u308b\u30a8\u30f3\u30c8\u30ea\u30fc1\u306eW=1\u3078\u5224\u5b9a\u3092\u3084\u308a\u76f4\u3059\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u914d\u7f6e\u3067\u4e8c\u3064\u306e\u8a2d\u5b9a\u306e\u756a\u53f7\u3092\u5165\u308c\u66ff\u3048\u308b\u3068\u3001\u5e83\u3044\u9818\u57df\u304c\u5148\u306b\u9078\u3070\u308c\u307e\u3059\u3002\u3059\u308b\u3068\u5185\u5074\u3082\u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u3068\u306a\u308a\u3001\u5c0f\u3055\u3044\u9818\u57df\u306e\u8aad\u307f\u53d6\u308a\u5c02\u7528\u8a2d\u5b9a\u306f\u305d\u306e\u30a2\u30af\u30bb\u30b9\u3092\u6b62\u3081\u3089\u308c\u307e\u305b\u3093\u3002\u4f8b\u5916\u3068\u306a\u308b\u9818\u57df\u3092\u91cd\u306d\u308b\u8a2d\u8a08\u3067\u306f\u3001\u7bc4\u56f2\u3060\u3051\u3067\u306a\u304f\u4e26\u3073\u9806\u307e\u3067\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u5883\u754c\u3092\u307e\u305f\u3050\u3068\u3001\u6a29\u9650\u304c\u3042\u3063\u3066\u3082\u901a\u3089\u306a\u3044<\/h2>\n<p>\u512a\u5148\u30a8\u30f3\u30c8\u30ea\u30fc\u304c\u6c7a\u307e\u3063\u305f\u5f8c\u306b\u306f\u3001\u3082\u3046\u4e00\u3064\u306e\u6761\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u304c\u3001<strong>\u4e00\u3064\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u306e\u5168\u30d0\u30a4\u30c8<\/strong>\u306b\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u5148\u982d\u30a2\u30c9\u30ec\u30b9\u3060\u3051\u304c\u5165\u3063\u3066\u3044\u308c\u3070\u3088\u3044\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<sup><a href=\"#ref-3\">[3]<\/a><\/sup><\/p>\n<p>0x17FC\u304b\u30898\u30d0\u30a4\u30c8\u3001\u3064\u307e\u308a0x17FC\u301c0x1803\u3092\u4e00\u3064\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u3068\u3057\u3066\u691c\u67fb\u3059\u308b\u5834\u5408\u3092\u898b\u307e\u3059\u3002\u524d\u534a4\u30d0\u30a4\u30c8\u306f\u5c0f\u3055\u3044\u9818\u57df\u306e\u5916\u3001\u5f8c\u534a4\u30d0\u30a4\u30c8\u306f\u5185\u5074\u3067\u3059\u3002\u5f8c\u534a\u306b\u4e00\u81f4\u3059\u308b\u30a8\u30f3\u30c8\u30ea\u30fc0\u304c\u6700\u512a\u5148\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u30a8\u30f3\u30c8\u30ea\u30fc0\u306f\u524d\u534a\u3092\u8986\u3048\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u64cd\u4f5c\u5168\u4f53\u304c\u5931\u6557\u3057\u307e\u3059\u3002\u30a8\u30f3\u30c8\u30ea\u30fc1\u304c8\u30d0\u30a4\u30c8\u3059\u3079\u3066\u3092\u8986\u3063\u3066\u3044\u3066\u3082\u3001\u3053\u306e\u7d50\u679c\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002<\/p>\n<figure>\n<a href=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-riscv-pmp-region-priority-20261016-source-figure-1-77c96ea1f804.png\"><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-riscv-pmp-region-priority-20261016-source-figure-1-77c96ea1f804.png\" width=\"1400\" height=\"1080\" style=\"width:100%;height:auto;\" alt=\"\u4e0a\u6bb5\u306f\u30a8\u30f3\u30c8\u30ea\u30fc1\u306e0x1000\u304b\u30890x1FFF\u306b\u3001\u756a\u53f7\u304c\u5c0f\u3055\u3044\u30a8\u30f3\u30c8\u30ea\u30fc0\u306e0x1800\u304b\u30890x1BFF\u304c\u91cd\u306a\u308b\u914d\u7f6e\u3002\u4e0b\u6bb5\u306f0x17FC\u304b\u30890x1803\u306e8\u30d0\u30a4\u30c8\u3092\u62e1\u5927\u3057\u3001\u5f8c\u534a4\u30d0\u30a4\u30c8\u3060\u3051\u306b\u4e00\u81f4\u3059\u308b\u30a8\u30f3\u30c8\u30ea\u30fc0\u304c\u512a\u5148\u3055\u308c\u3001\u5168\u30d0\u30a4\u30c8\u3092\u8986\u3048\u306a\u3044\u305f\u3081\u4e00\u3064\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u306f\u62d2\u5426\u3055\u308c\u308b\u3053\u3068\u3092\u793a\u3059\u3002\" loading=\"lazy\"><\/a><figcaption>\u56f31\u3000\u91cd\u306a\u308a\u306e\u5168\u4f53\u50cf\u3068\u30010x1800\u306e\u5883\u754c\u3092\u62e1\u5927\u3057\u305f\u56f3\u3002RISC-V\u7279\u6a29\u4ed5\u69d8\u306ePMP\u5224\u5b9a\u898f\u5247\u306b\u57fa\u3065\u304f\u8aac\u660e\u7528\u306e\u72ec\u81ea\u56f3\u3002\u4e0a\u6bb5\u306e\u53f3\u7aef\u306f\u7bc4\u56f2\u306b\u542b\u307e\u308c\u306a\u3044\u4e0a\u7aef\u3067\u3001\u4e0a\u6bb5\u3068\u4e0b\u6bb5\u306e\u7e2e\u5c3a\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u753b\u50cf\u3092\u958b\u304f\u3068\u62e1\u5927\u3067\u304d\u307e\u3059\u3002<\/figcaption><\/figure>\n<p>\u3053\u306e\u5168\u30d0\u30a4\u30c8\u4e00\u81f4\u306e\u6761\u4ef6\u306f\u3001L\u3001R\u3001W\u3001X\u306e\u5024\u306b\u304b\u304b\u308f\u3089\u305a\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u540c\u30588\u30d0\u30a4\u30c8\u306e\u5358\u4e00\u64cd\u4f5c\u306a\u3089\u3001\u8aad\u307f\u53d6\u308a\u3067\u3082\u5931\u6557\u3057\u3001\u5b9f\u52b9\u6a29\u9650\u304cM\u3067L=0\u306e\u5834\u5408\u3082\u5931\u6557\u3057\u307e\u3059\u3002M\u30e2\u30fc\u30c9\u306e\u6a29\u9650\u4e0a\u306e\u6271\u3044\u3092\u5148\u306b\u5f53\u3066\u306f\u3081\u3066\u3001\u5883\u754c\u306e\u691c\u67fb\u3092\u7701\u304f\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<div role=\"region\" aria-label=\"\u5358\u4e00\u30e1\u30e2\u30ea\u64cd\u4f5c\u3054\u3068\u306ePMP\u5224\u5b9a\u4f8b\" tabindex=\"0\" style=\"overflow-x:auto;\">\n<table style=\"min-width:650px;\">\n<caption>\u88682\u3000\u5b9f\u52b9\u6a29\u9650\u304cU\u307e\u305f\u306fS\u306e\u5834\u5408\u3002\u5404\u884c\u3092\u4e00\u3064\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u3068\u3057\u3066PMP\u304c\u691c\u67fb\u3059\u308b\u3001\u3068\u3044\u3046\u6761\u4ef6\u3067\u306e\u5224\u5b9a\u3067\u3059\u3002<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">\u30a2\u30af\u30bb\u30b9\u3059\u308b\u30d0\u30a4\u30c8<\/th>\n<th scope=\"col\">\u7a2e\u985e<\/th>\n<th scope=\"col\">\u512a\u5148\u30a8\u30f3\u30c8\u30ea\u30fc<\/th>\n<th scope=\"col\">PMP\u306e\u5224\u5b9a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0x17FC\u301c0x17FF\uff084\u30d0\u30a4\u30c8\uff09<\/td>\n<td>\u66f8\u304d\u8fbc\u307f<\/td>\n<td>1<\/td>\n<td>\u8a31\u53ef\u3002\u5168\u4f53\u304c\u4e00\u81f4\u3057\u3001W=1<\/td>\n<\/tr>\n<tr>\n<td>0x1800\u301c0x1803\uff084\u30d0\u30a4\u30c8\uff09<\/td>\n<td>\u8aad\u307f\u53d6\u308a<\/td>\n<td>0<\/td>\n<td>\u8a31\u53ef\u3002\u5168\u4f53\u304c\u4e00\u81f4\u3057\u3001R=1<\/td>\n<\/tr>\n<tr>\n<td>0x1800\u301c0x1803\uff084\u30d0\u30a4\u30c8\uff09<\/td>\n<td>\u66f8\u304d\u8fbc\u307f<\/td>\n<td>0<\/td>\n<td>\u62d2\u5426\u3002W=0<\/td>\n<\/tr>\n<tr>\n<td>0x17FC\u301c0x1803\uff088\u30d0\u30a4\u30c8\uff09<\/td>\n<td>\u8aad\u307f\u53d6\u308a\uff0f\u66f8\u304d\u8fbc\u307f<\/td>\n<td>0<\/td>\n<td>\u62d2\u5426\u3002\u5168\u4f53\u3092\u8986\u308f\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>0x1C00\u301c0x1C03\uff084\u30d0\u30a4\u30c8\uff09<\/td>\n<td>\u66f8\u304d\u8fbc\u307f<\/td>\n<td>1<\/td>\n<td>\u8a31\u53ef\u3002\u5c0f\u3055\u3044\u9818\u57df\u306e\u5916\u3067\u3001W=1<\/td>\n<\/tr>\n<tr>\n<td>0x2000\u301c0x2003\uff084\u30d0\u30a4\u30c8\uff09<\/td>\n<td>\u8aad\u307f\u53d6\u308a<\/td>\n<td>\u4e00\u81f4\u306a\u3057<\/td>\n<td>\u62d2\u5426\u3002PMP\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u3066\u3001\u8a31\u53ef\u3059\u308b\u9818\u57df\u304c\u306a\u3044<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u3053\u3053\u3067\u306e\u300c\u8a31\u53ef\u300d\u306fPMP\u691c\u67fb\u306b\u3064\u3044\u3066\u306e\u7d50\u679c\u3067\u3059\u3002\u5b9f\u969b\u306e\u30a2\u30af\u30bb\u30b9\u306b\u306f\u7269\u7406\u30e1\u30e2\u30ea\u5c5e\u6027\uff08PMA\uff09\u306a\u3069\u306e\u6761\u4ef6\u3082\u95a2\u308f\u308b\u306e\u3067\u3001PMP\u3092\u901a\u3063\u305f\u3053\u3068\u3060\u3051\u3067\u547d\u4ee4\u5168\u4f53\u306e\u6210\u529f\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<sup><a href=\"#ref-1\">[1]<\/a><\/sup><\/p>\n<h2>M\u30e2\u30fc\u30c9\u3068L\u30d3\u30c3\u30c8\u306f\u3001\u5168\u30d0\u30a4\u30c8\u304c\u4e00\u81f4\u3057\u305f\u5f8c\u3067\u8aad\u3080<\/h2>\n<p>M\u30e2\u30fc\u30c9\u306f\u3001PMP\u306e\u5236\u5fa1\u30ec\u30b8\u30b9\u30bf\u30fc\u3092\u64cd\u4f5c\u3059\u308b\u6a5f\u68b0\u30e2\u30fc\u30c9\u3067\u3059\u3002\u305f\u3060\u3057PMP\u306e\u5224\u5b9a\u3067\u306f\u3001M\u3001S\u3001U\u3092\u3059\u3079\u3066\u540c\u3058\u6271\u3044\u306b\u306f\u3057\u307e\u305b\u3093\u3002\u5168\u30d0\u30a4\u30c8\u304c\u4e00\u81f4\u3057\u305f\u30a8\u30f3\u30c8\u30ea\u30fc\u306b\u3064\u3044\u3066\u3001<strong>\u5b9f\u52b9\u6a29\u9650\u304cM\u3067L=0\u306a\u3089\u3001R\/W\/X\u306b\u3088\u308b\u5236\u9650\u3092\u53d7\u3051\u305a\u306b\u901a\u308a\u307e\u3059<\/strong>\u3002L=1\u306a\u3089M\u306b\u3082\u305d\u306e\u6a29\u9650\u3092\u9069\u7528\u3057\u307e\u3059\u3002\u5b9f\u52b9\u6a29\u9650\u304cS\u307e\u305f\u306fU\u306e\u5834\u5408\u306f\u3001L\u304c0\u3067\u30821\u3067\u3082R\/W\/X\u3092\u9069\u7528\u3057\u307e\u3059\u3002<sup><a href=\"#ref-4\">[4]<\/a><\/sup><\/p>\n<p>\u88681\u306e\u30a8\u30f3\u30c8\u30ea\u30fc0\u3078\u53ce\u307e\u308b4\u30d0\u30a4\u30c8\u306e\u66f8\u304d\u8fbc\u307f\u306a\u3089\u3001\u5b9f\u52b9M\u30fbL=0\u3067\u306f\u901a\u308a\u3001\u5b9f\u52b9U\/S\u3067\u306fW=0\u306b\u3088\u308a\u62d2\u5426\u3055\u308c\u307e\u3059\u3002\u30a8\u30f3\u30c8\u30ea\u30fc0\u3092L=1\u306b\u3057\u305f\u5834\u5408\u306f\u3001\u5b9f\u52b9M\u306e\u66f8\u304d\u8fbc\u307f\u3082\u62d2\u5426\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u9055\u3044\u3068\u3001\u5148\u307b\u3069\u306e\u300c\u5168\u4f53\u3092\u8986\u308f\u306a\u3044\u305f\u3081\u306b\u62d2\u5426\u300d\u3092\u5206\u3051\u308b\u3068\u3001\u8a2d\u5b9a\u3092\u8aad\u307f\u9055\u3048\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>L\u306b\u306f\u3001\u8a2d\u5b9a\u3092\u56fa\u5b9a\u3059\u308b\u5f79\u5272\u3082\u3042\u308a\u307e\u3059\u3002L=1\u306b\u3059\u308b\u3068\u3001\u305d\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306e\u8a2d\u5b9a\u3068\u5bfe\u5fdc\u3059\u308b\u30a2\u30c9\u30ec\u30b9\u30ec\u30b8\u30b9\u30bf\u30fc\u3078\u306e\u66f8\u304d\u8fbc\u307f\u306f\u7121\u8996\u3055\u308c\u3001hart\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u307e\u3067\u30ed\u30c3\u30af\u304c\u7d9a\u304d\u307e\u3059\u3002TOR\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u30ed\u30c3\u30af\u3057\u305f\u5834\u5408\u306f\u3001\u4e0b\u7aef\u3092\u6c7a\u3081\u308b\u4e00\u3064\u524d\u306e\u30a2\u30c9\u30ec\u30b9\u30ec\u30b8\u30b9\u30bf\u30fc\u3082\u5909\u66f4\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002OFF\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3067\u3082L\u306b\u3088\u308b\u30ed\u30c3\u30af\u306f\u6210\u7acb\u3057\u307e\u3059\u3002\u9818\u57df\u306e\u5f62\u3068\u3001\u5f8c\u3067\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u4f7f\u3046\u30d3\u30c3\u30c8\u3067\u3059\u3002<sup><a href=\"#ref-4\">[4]<\/a><\/sup><\/p>\n<p>\u3069\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306b\u3082\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u5b9f\u52b9M\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u306fPMP\u4e0a\u306f\u6210\u529f\u3057\u307e\u3059\u3002\u4e00\u65b9\u3001PMP\u30a8\u30f3\u30c8\u30ea\u30fc\u304c\u5c11\u306a\u304f\u3068\u3082\u4e00\u3064\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u5b9f\u52b9S\/U\u306e\u64cd\u4f5c\u306f\u5931\u6557\u3057\u307e\u3059\u3002\u5168\u30a8\u30f3\u30c8\u30ea\u30fc\u3092OFF\u306b\u3059\u308b\u3053\u3068\u306f\u3001S\/U\u3078\u5168\u9762\u7684\u306a\u8a31\u53ef\u3092\u4e0e\u3048\u308b\u3053\u3068\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002PMP\u81ea\u4f53\u3092\u5b9f\u88c5\u3057\u306a\u3044\u5834\u5408\u3068\u306f\u533a\u5225\u304c\u5fc5\u8981\u3067\u3059\u3002<sup><a href=\"#ref-3\">[3]<\/a><\/sup><\/p>\n<p>\u307e\u305f\u3001\u300cM\u30e2\u30fc\u30c9\u3067\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u4e2d\u3060\u304b\u3089\u3001\u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u3082\u5b9f\u52b9M\u300d\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002mstatus\u306eMPRV=1\u304b\u3064MPP=S\/U\u306a\u3089\u3001M\u30e2\u30fc\u30c9\u304b\u3089\u306e\u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u306b\u3082\u305d\u306eS\/U\u306ePMP\u691c\u67fb\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u5909\u63db\u306b\u4f34\u3046\u30da\u30fc\u30b8\u30c6\u30fc\u30d6\u30eb\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f\u3001\u5b9f\u52b9S\u3068\u3057\u3066\u691c\u67fb\u3055\u308c\u307e\u3059\u3002\u547d\u4ee4\u30d5\u30a7\u30c3\u30c1\u3068\u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u3092\u4e00\u62ec\u308a\u306b\u305b\u305a\u3001\u691c\u67fb\u3055\u308c\u308b\u30a2\u30af\u30bb\u30b9\u5074\u306e\u6a29\u9650\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<sup><a href=\"#ref-1\">[1]<\/a><\/sup><\/p>\n<h2>\u4e00\u3064\u306e\u547d\u4ee4\u304c\u5931\u6557\u3057\u3066\u3082\u3001\u66f8\u304d\u8fbc\u307f\u306e\u5168\u90e8\u304c\u53d6\u308a\u6d88\u3055\u308c\u308b\u3068\u306f\u9650\u3089\u306a\u3044<\/h2>\n<p>\u3053\u308c\u307e\u3067\u306e\u8868\u306f\u3001\u4e00\u3064\u306e<strong>\u30e1\u30e2\u30ea\u64cd\u4f5c<\/strong>\u3054\u3068\u306e\u5224\u5b9a\u3067\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u4e2d\u306e\u4e00\u3064\u306e\u547d\u4ee4\u304c\u3001\u5e38\u306b\u4e00\u3064\u306e\u30e1\u30e2\u30ea\u64cd\u4f5c\u306b\u306a\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u4ed5\u69d8\u306f\u3001\u5b9f\u88c5\u306b\u3088\u3063\u3066\u975e\u6574\u5217\u306e\u30ed\u30fc\u30c9\u30fb\u30b9\u30c8\u30a2\u30fb\u547d\u4ee4\u30d5\u30a7\u30c3\u30c1\u304c\u8907\u6570\u306e\u64cd\u4f5c\u3078\u5206\u304b\u308c\u3001\u305d\u308c\u305e\u308c\u306bPMP\u691c\u67fb\u304c\u884c\u308f\u308c\u308b\u5834\u5408\u3092\u5b9a\u3081\u3066\u3044\u307e\u3059\u3002<sup><a href=\"#ref-3\">[3]<\/a><\/sup><\/p>\n<p>\u5148\u307b\u3069\u306e0x17FC\u304b\u3089\u306e8\u30d0\u30a4\u30c8\u66f8\u304d\u8fbc\u307f\u306b\u3064\u3044\u3066\u3001\u3042\u308b\u5b9f\u88c5\u304c0x17FC\u301c0x17FF\u30680x1800\u301c0x1803\u306e\u4e8c\u3064\u306e4\u30d0\u30a4\u30c8\u64cd\u4f5c\u3078\u5206\u3051\u3001\u5b9f\u52b9U\/S\u3067\u691c\u67fb\u3057\u305f\u3068\u4eee\u5b9a\u3057\u307e\u3059\u3002\u524d\u534a\u306f\u30a8\u30f3\u30c8\u30ea\u30fc1\u306b\u3088\u308a\u8a31\u53ef\u3055\u308c\u3001\u5f8c\u534a\u306f\u30a8\u30f3\u30c8\u30ea\u30fc0\u306eW=0\u3067\u62d2\u5426\u3055\u308c\u307e\u3059\u3002\u5931\u6557\u3057\u305f\u5074\u304c\u30a2\u30af\u30bb\u30b9\u30d5\u30a9\u30fc\u30eb\u30c8\u3092\u8d77\u3053\u3057\u3066\u3082\u3001\u901a\u3063\u305f\u5074\u306e\u66f8\u304d\u8fbc\u307f\u304c\u65e2\u306b\u898b\u3048\u308b\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u3001\u3069\u306e\u5b9f\u88c5\u3082\u3053\u306e\u5206\u5272\u3084\u9806\u5e8f\u3067\u52d5\u304f\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u30020x17FC\u306f8\u30d0\u30a4\u30c8\u5883\u754c\u306b\u6574\u5217\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u5b9f\u6a5f\u3067\u306f\u975e\u6574\u5217\u30a2\u30af\u30bb\u30b9\u306e\u4f8b\u5916\u51e6\u7406\u3082\u95a2\u308f\u308a\u307e\u3059\u3002\u4e0a\u306e\u4f8b\u306f\u3001\u6307\u5b9a\u3057\u305f\u5358\u4e00\u64cd\u4f5c\u307e\u305f\u306f\u5206\u5272\u64cd\u4f5c\u304cPMP\u691c\u67fb\u3078\u6e21\u3063\u305f\u5834\u5408\u3092\u6bd4\u3079\u305f\u3082\u306e\u3067\u3059\u3002\u307e\u305f\u3001XLEN\u3088\u308a\u5e83\u3044\u30b9\u30c8\u30a2\u3067\u306f\u3001\u81ea\u7136\u306b\u6574\u5217\u3057\u3066\u3044\u3066\u3082\u4e00\u90e8\u3060\u3051\u304c\u6210\u529f\u3059\u308b\u540c\u69d8\u306e\u72b6\u6cc1\u304c\u3042\u308a\u5f97\u308b\u3068\u4ed5\u69d8\u306f\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<sup><a href=\"#ref-3\">[3]<\/a><\/sup><\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u8003\u3048\u308b\u969b\u306b\u300c\u4f8b\u5916\u304c\u51fa\u305f\u306e\u3067\u3001\u30e1\u30e2\u30ea\u306f\u5fc5\u305a\u66f8\u304d\u8fbc\u307f\u524d\u306e\u307e\u307e\u300d\u3068\u7f6e\u304f\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u5883\u754c\u3092\u307e\u305f\u304c\u306a\u3044\u30c7\u30fc\u30bf\u914d\u7f6e\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u306b\u52a0\u3048\u3001\u5bfe\u8c61\u5b9f\u88c5\u304c\u3069\u306e\u30a2\u30af\u30bb\u30b9\u3092\u5206\u5272\u3057\u3001\u4f55\u3092\u539f\u5b50\u7684\u306b\u6271\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3059\u308b\u3068\u304d\u306f\u3001\u7bc4\u56f2\u30fb\u9806\u5e8f\u30fb\u6a29\u9650\u30fb\u5b9f\u88c5\u6761\u4ef6\u3092\u5206\u3051\u308b<\/h2>\n<p>\u30a2\u30af\u30bb\u30b9\u304c\u610f\u56f3\u3069\u304a\u308a\u306b\u5236\u9650\u3055\u308c\u306a\u3044\u3068\u304d\u306f\u3001\u307e\u305a\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u3068\u30d0\u30a4\u30c8\u6570\u3092\u53d6\u308a\u51fa\u3057\u3001\u4e00\u90e8\u3067\u3082\u4e00\u81f4\u3059\u308b\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u756a\u53f7\u9806\u306b\u898b\u307e\u3059\u3002\u6b21\u306b\u3001\u6700\u521d\u306b\u4e00\u81f4\u3057\u305f\u9818\u57df\u304c\u5168\u4f53\u3092\u8986\u3046\u304b\u3092\u78ba\u304b\u3081\u307e\u3059\u3002\u305d\u306e\u5f8c\u3067\u5b9f\u52b9\u6a29\u9650\u3001L\u3001R\/W\/X\u3092\u8aad\u3080\u3068\u3001\u300c\u7bc4\u56f2\u306e\u5931\u6557\u300d\u3068\u300c\u6a29\u9650\u306e\u5931\u6557\u300d\u3092\u5207\u308a\u5206\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u6a5f\u306e\u8a2d\u5b9a\u3078\u9032\u3080\u969b\u306f\u3001PMP\u306e\u5b9f\u88c5\u6709\u7121\u3001\u30a8\u30f3\u30c8\u30ea\u30fc\u6570\u3001\u7c92\u5ea6\u3001\u66f8\u304d\u8fbc\u307f\u5f8c\u306b\u8aad\u307f\u623b\u3055\u308c\u308b\u5024\u3082\u5225\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6a19\u6e96\u306e\u7b26\u53f7\u5316\u306b4\u30d0\u30a4\u30c8\u9818\u57df\u304c\u3042\u308b\u3053\u3068\u306f\u3001\u3059\u3079\u3066\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u305d\u306e\u7c92\u5ea6\u304c\u4f7f\u3048\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30da\u30fc\u30b8\u65b9\u5f0f\u306e\u4eee\u60f3\u30e1\u30e2\u30ea\u3092\u5b9f\u88c5\u3059\u308bhart\u3067\u306f\u3001PMP\u8a2d\u5b9a\u5909\u66f4\u5f8c\u306bSFENCE.VMA\u306a\u3069\u5fc5\u8981\u306a\u540c\u671f\u3082\u78ba\u8a8d\u3057\u307e\u3059\u3002\u4eee\u60f3\u30e1\u30e2\u30ea\u3092\u305d\u306e\u6642\u70b9\u3067\u6709\u52b9\u306b\u3057\u3066\u3044\u308b\u304b\u3060\u3051\u3067\u3001\u7701\u7565\u3092\u5224\u65ad\u3057\u306a\u3044\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<sup><a href=\"#ref-2\">[2]<\/a><\/sup><sup><a href=\"#ref-5\">[5]<\/a><\/sup><\/p>\n<p>\u672c\u8a18\u4e8b\u306e\u56f3\u3068\u8868\u306f\u3001\u56fa\u5b9a\u7248\u306e\u4ed5\u69d8\u306b\u57fa\u3065\u304f\u8aac\u660e\u7528\u306e\u5224\u5b9a\u3067\u3059\u3002\u5b9f\u6a5f\u30fb\u30a8\u30df\u30e5\u30ec\u30fc\u30bf\u30fc\u306e\u8a66\u9a13\u7d50\u679c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002Smepmp\u306b\u3088\u308b\u8ffd\u52a0\u898f\u5247\u3001DMA\u3084IOMMU\u3092\u542b\u3080\u6a5f\u5668\u5168\u4f53\u306e\u4fdd\u8b77\u306f\u7bc4\u56f2\u306b\u542b\u3081\u3066\u3044\u307e\u305b\u3093\u3002PMP\u3092\u8aad\u3080\u969b\u306e\u8981\u70b9\u306f\u3001\u8a31\u53ef\u30d3\u30c3\u30c8\u3092\u63a2\u3059\u3060\u3051\u3067\u7d42\u3048\u305a\u3001\u3069\u306e\u9818\u57df\u304c\u5224\u5b9a\u3092\u62c5\u5f53\u3057\u3001\u3069\u3053\u307e\u3067\u3092\u4e00\u3064\u306e\u64cd\u4f5c\u3068\u3057\u3066\u8986\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u304b\u3081\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<h2>\u53c2\u8003\u8cc7\u6599<\/h2>\n<ol>\n<li id=\"ref-1\">RISC-V International, <a href=\"https:\/\/docs.riscv.org\/reference\/isa\/v20260120\/priv\/machine.html#pmp\">The RISC-V Instruction Set Manual, Volume II: Privileged Architecture \u2014 Physical Memory Protection<\/a>\u3002\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8v20260120\u3001\u00a72.1.7\u304a\u3088\u3073\u00a72.1.7.1\u3002PMP\u306e\u5bfe\u8c61\u3001\u5b9f\u52b9\u6a29\u9650\u3001\u5236\u5fa1\u30ec\u30b8\u30b9\u30bf\u30fc\u3068R\/W\/X\u3002<\/li>\n<li id=\"ref-2\">\u540c\u3001<a href=\"https:\/\/docs.riscv.org\/reference\/isa\/v20260120\/priv\/machine.html#2-1-7-1-1-address-matching\">Address Matching<\/a>\u3001\u00a72.1.7.1.1\u3001\u886813\u30fb14\u3002OFF\u3001TOR\u3001NA4\u3001NAPOT\u3068\u5b9f\u88c5\u7c92\u5ea6\u3002<\/li>\n<li id=\"ref-3\">\u540c\u3001<a href=\"https:\/\/docs.riscv.org\/reference\/isa\/v20260120\/priv\/machine.html#2-1-7-1-3-priority-and-matching-logic\">Priority and Matching Logic<\/a>\u3001\u00a72.1.7.1.3\u3002\u6700\u5c0f\u756a\u53f7\u306e\u512a\u5148\u3001\u5168\u30d0\u30a4\u30c8\u4e00\u81f4\u3001\u4e0d\u4e00\u81f4\u6642\u306e\u6271\u3044\u3001\u5206\u5272\u30a2\u30af\u30bb\u30b9\u306e\u526f\u4f5c\u7528\u3002<\/li>\n<li id=\"ref-4\">\u540c\u3001<a href=\"https:\/\/docs.riscv.org\/reference\/isa\/v20260120\/priv\/machine.html#pmp-locking\">Locking and Privilege Mode<\/a>\u3001\u00a72.1.7.1.2\u3002L\u306b\u3088\u308b\u56fa\u5b9a\u3068M\u30e2\u30fc\u30c9\u3078\u306e\u6a29\u9650\u9069\u7528\u3002<\/li>\n<li id=\"ref-5\">\u540c\u3001<a href=\"https:\/\/docs.riscv.org\/reference\/isa\/v20260120\/priv\/machine.html#pmp-vmem\">Physical Memory Protection and Paging<\/a>\u3001\u00a72.1.7.2\u3001\u304a\u3088\u3073<a href=\"https:\/\/docs.riscv.org\/reference\/isa\/v20260120\/priv\/priv-preface.html\">Preface<\/a>\u306eVersion 1.12\u306e\u5909\u66f4\u8aac\u660e\u3002\u30da\u30fc\u30b8\u30c6\u30fc\u30d6\u30eb\u30a2\u30af\u30bb\u30b9\u3068PMP\u5909\u66f4\u5f8c\u306e\u540c\u671f\u3002\u5404\u53c2\u7167\u306f\u540c\u4e00\u4ed5\u69d8\u5185\u306e\u95a2\u9023\u7bc0\u3067\u3042\u308a\u3001\u5225\u3005\u306e\u5b9f\u88c5\u5b9f\u8a3c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u8aad\u307f\u66f8\u304d\u3092\u8a31\u53ef\u3057\u305f\u30e1\u30e2\u30ea\u9818\u57df\u306a\u306e\u306b\u3001\u305d\u306e\u4e2d\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u62d2\u5426\u3055\u308c\u308b\u3002RISC-V\u306ePMP\uff08Physical Memory Protection\u3001\u7269\u7406\u30e1\u30e2\u30ea\u4fdd\u8b77\uff09\u3067\u306f\u3001\u6a29\u9650\u306e\u30d3\u30c3\u30c8\u3060\u3051\u3092\u898b\u3066\u3082\u3001\u3053\u306e\u7406\u7531\u304c\u5206\u304b\u3089\u306a\u3044\u3053\u3068\u304c\u3042 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":965,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[30],"tags":[248,269],"class_list":["post-967","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computing","tag-risc-v","tag-physical-memory-protection"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-riscv-pmp-region-priority-20261016-featured-eb6c625661a5.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/967","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=967"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/967\/revisions"}],"predecessor-version":[{"id":968,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/967\/revisions\/968"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/965"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=967"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=967"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=967"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}