{"id":65965,"date":"2026-01-26T01:08:37","date_gmt":"2026-01-25T17:08:37","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/65965.html"},"modified":"2026-01-26T01:08:37","modified_gmt":"2026-01-25T17:08:37","slug":"huawei-a800i-a2-aarch64%e6%9e%b6%e6%9e%84ubuntu%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%b2%b2%e9%b9%8f920%e5%bc%80%e5%90%af-iommu-smmu-%e7%a1%ac%e4%bb%b6%e8%99%9a%e6%8b%9f%e5%8c%96%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/65965.html","title":{"rendered":"HUAWEI A800I A2 aarch64\u67b6\u6784Ubuntu\u670d\u52a1\u5668\u9cb2\u9e4f920\u5f00\u542f IOMMU\/SMMU \u786c\u4ef6\u865a\u62df\u5316\u529f\u80fd"},"content":{"rendered":"<h3>\u673a\u5668\u4fe1\u606f<\/h3>\n<p>\u670d\u52a1\u5668\u54c1\u724c&#xff1a;HUAWEI \u670d\u52a1\u5668\u578b\u53f7&#xff1a;A800I A2<\/p>\n<p>CPU\u67b6\u6784&#xff1a;aarch64 CPU\u5382\u5546&#xff1a;\u6d77\u601d CPU\u578b\u53f7&#xff1a;\u9cb2\u9e4f 920 CPU\u6570\u91cf&#xff1a;4C48\u6838<\/p>\n<p>\u5b89\u88c5\u7cfb\u7edf&#xff1a;Ubuntu 22.04 LTS \u7cfb\u7edf\u67b6\u6784&#xff1a;arm64 \u5185\u6838\u7248\u672c&#xff1a;Linux 5.15.0-25-generic<\/p>\n<p>NPU\u578b\u53f7&#xff1a;\u534e\u4e3a\u6607\u817e910B NPU\u5e8f\u53f7&#xff1a;d802 NPU\u9a71\u52a8&#xff1a;25.2.2<\/p>\n<p>\u7ed3\u5408\u6b64\u535a\u5ba2\u914d\u7f6e&#xff1a;https:\/\/yunwei.blog.csdn.net\/article\/details\/153411516?fromshare&#061;blogdetail&amp;sharetype&#061;blogdetail&amp;sharerId&#061;153411516&amp;sharerefer&#061;PC&amp;sharesource&#061;qq_42534026&amp;sharefrom&#061;from_link<\/p>\n<h3>grub\u6587\u4ef6\u914d\u7f6e<\/h3>\n<p>\u5176\u5b9e\u8fd9\u4e2a\u529f\u80fd\u53ea\u9700\u8981\u66f4\u6539grub\u6587\u4ef6\u540e\u91cd\u542f\u5373\u53ef&#xff0c;\u4f46\u662farm\u67b6\u6784\u7684\u9cb2\u9e4f920cpu\u4e0d\u5c5e\u4e8eamd\u6216\u8005Intel\u7f51\u7edc\u4e0a\u5f88\u591a\u7684\u8d44\u6599\u90fd\u4e0d\u80fd\u53c2\u8003&#xff0c;\u8fd9\u6837\u7ecf\u8fc7\u6211\u7684\u8bd5\u9519\u628a\u6b63\u786e\u5f00\u542f\u7684\u6dfb\u52a0\u9879\u5217\u51fa\u6765\u3002<\/p>\n<p>GRUB_CMDLINE_LINUX&#061;&#034;arm-smmu.enable&#061;1 iommu.passthrough&#061;1 iommu&#061;pt smmu.enable&#061;1&#034;<\/p>\n<p>\u5148\u5907\u4efd\u7136\u540e\u76f4\u63a5\u4fee\u6539ubuntu\u7684\/etc\/default\/grub\u6587\u4ef6&#xff0c;\u5728GRUB_CMDLINE_LINUX\u7684\u914d\u7f6e\u9879\u4e2d\u6dfb\u52a0\u5373\u53ef<\/p>\n<p>cp \/etc\/default\/grub \/etc\/default\/grub-bak<br \/>\narm-smmu.enable&#061;1 iommu.passthrough&#061;1 iommu&#061;pt smmu.enable&#061;1<\/p>\n<p>\u63a5\u7740\u66f4\u65b0\u914d\u7f6e<\/p>\n<p>sudo update-grub<br \/>\nsudo update-grub2<\/p>\n<p>\u91cd\u542f\u673a\u5668\u540e\u8f93\u5165<\/p>\n<p>dmesg | grep -i smmu<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260125170835-69764e13a74ad.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u673a\u5668\u4fe1\u606f<br \/>\n\u670d\u52a1\u5668\u54c1\u724c&#xff1a;HUAWEI \u670d\u52a1\u5668\u578b\u53f7&#xff1a;A800I A2<br \/>\nCPU\u67b6\u6784&#xff1a;aarch64 CPU\u5382\u5546&#xff1a;\u6d77\u601d CPU\u578b\u53f7&#xff1a;\u9cb2\u9e4f 920 CPU\u6570\u91cf&#xff1a;4C48\u6838<br \/>\n\u5b89\u88c5\u7cfb\u7edf&#xff1a;Ubuntu 22.04 LTS \u7cfb\u7edf\u67b6\u6784&#xff1a;arm64 \u5185\u6838\u7248\u672c&#xff1a;Linux 5.15.0-25-generic<br \/>\nNPU\u578b\u53f7&#xff1a;\u534e\u4e3a\u6607\u817e910B NPU\u5e8f\u53f7&amp;#x<\/p>\n","protected":false},"author":2,"featured_media":65964,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,103,43],"topic":[],"class_list":["post-65965","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-linux","tag-ubuntu","tag-43"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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