{"id":12109,"date":"2021-02-10T10:10:35","date_gmt":"2021-02-10T01:10:35","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=12109"},"modified":"2021-02-10T10:10:35","modified_gmt":"2021-02-10T01:10:35","slug":"libvirt-monolithic-vs-modular","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=12109","title":{"rendered":"libvirt: monolithic vs modular"},"content":{"rendered":"\n

libvirt<\/a>(d)のドキュメントなどを少し読んでます．<\/p>\n\n\n\n

もともとlibvirtdは，1つのデーモンで何でもこなすようになっていたようですが，最近では，機能別にモジュール化したデーモンを使う方向に移行<\/a>しているそうです．<\/p>\n\n\n\n

QEMUをhypervisorとするときの担当daemonは，virtqemudだということです．Gentoo(AMD64)の\/usr\/sbinを覗くと，<\/p>\n\n\n\n

ls -l \/usr\/sbin\/virt*\n-rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtinterfaced\n-rwxr-xr-x 1 root root  81272 Feb  7 09:09 \/usr\/sbin\/virtlockd\n-rwxr-xr-x 1 root root  81080 Feb  7 09:09 \/usr\/sbin\/virtlogd\n-rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtnetworkd\n-rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtnodedevd\n-rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtnwfilterd\n-rwxr-xr-x 1 root root 486616 Feb  7 09:09 \/usr\/sbin\/virtproxyd\n-rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtqemud\n-rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtsecretd\n-rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtstoraged<\/pre>\n\n\n\n
てな具合です．一方，macOSでは，<\/p>\n\n\n\n
ls -l \/opt\/local\/sbin\/virt*
-rwxr-xr-x 1 root admin 79152 8 4 2020 \/opt\/local\/sbin\/virtlockd
-rwxr-xr-x 1 root admin 80424 8 4 2020 \/opt\/local\/sbin\/virtlogd
-rwxr-xr-x 1 root admin 439400 8 4 2020 \/opt\/local\/sbin\/virtproxyd
-rwxr-xr-x 1 root admin 434832 8 4 2020 \/opt\/local\/sbin\/virtsecretd
-rwxr-xr-x 1 root admin 434832 8 4 2020 \/opt\/local\/sbin\/virtstoraged
-rwxr-xr-x 1 root admin 434832 8 4 2020 \/opt\/local\/sbin\/virtvboxd<\/pre>\n\n\n\n
です．virtqemudやvirtnetworkdなどがありません．当然，同時にbuildされた，monolithicなlibvirtdにも，virtqemudなどの機能は含まれていないと想像できます．<\/p>\n\n\n\n
macOSで，KVMが機能しないのは解りますが，QEMUも動かないんでしょうか．かつて，Qという，QEMUのアプリがありましたからそうではないと思います．が，MacPortsの中身がさっぱり解らないので，お手上げです．<\/p>\n\n\n\n
VirtualBoxは削除<\/h2>\n\n\n\n
ちなみに，VirtualBoxで動くGentooは，あいかわらずSegfault乱発で，まともに動いてくれないので，削除しました．<\/p>\n","protected":false},"excerpt":{"rendered":"
libvirt(d)\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306a\u3069\u3092\u5c11\u3057\u8aad\u3093\u3067\u307e\u3059\uff0e \u3082\u3068\u3082\u3068libvirtd\u306f\uff0c1\u3064\u306e\u30c7\u30fc\u30e2\u30f3\u3067\u4f55\u3067\u3082\u3053\u306a\u3059\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u305f\u3088\u3046\u3067\u3059\u304c\uff0c\u6700\u8fd1\u3067\u306f\uff0c\u6a5f\u80fd\u5225\u306b\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u3057\u305f\u30c7\u30fc\u30e2\u30f3\u3092\u4f7f\u3046\u65b9\u5411\u306b\u79fb\u884c\u3057\u3066\u3044\u308b\u305d\u3046\u3067\u3059\uff0e QEMU\u3092hypervisor\u3068\u3059\u308b\u3068\u304d\u306e\u62c5\u5f53daemon\u306f\uff0cvirtqemud\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3059\uff0eGentoo(AMD64)\u306e\/usr\/sbin\u3092\u8997\u304f\u3068\uff0c ls -l \/usr\/sbin\/virt* -rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtinterfaced -rwxr-xr-x 1 root root  81272 Feb  7 09:09 \/usr\/sbin\/virtlockd -rwxr-xr-x 1 root root  81080 Feb  7 09:09 \/usr\/sbin\/virtlogd -rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtnetworkd -rwxr-xr-x 1 root root 482520 Feb  7 09:09 \/usr\/sbin\/virtnodedevd -rwxr-xr-x 1 root root … Continue reading “libvirt: monolithic vs modular”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_daextam_enable_autolinks":"","footnotes":""},"categories":[18,21,8,22],"tags":[],"class_list":["post-12109","post","type-post","status-publish","format-standard","hentry","category-gentoo","category-kvm","category-linux","category-macintosh-computer"],"publishpress_future_action":{"enabled":false,"date":"2026-06-20 18:29:18","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts\/12109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12109"}],"version-history":[{"count":0,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts\/12109\/revisions"}],"wp:attachment":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}