{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:02000812","sets":["1164:1867:11897:1740054267812"]},"path":["1740054267812"],"owner":"80578","recid":"2000812","title":["AMD SEV/-ES/-SNPによるネストしたVMの保護方式"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-02-27"},"_buckets":{"deposit":"ade27e34-595c-4364-9d6f-9426c72ad98e"},"_deposit":{"id":"2000812","pid":{"type":"depid","value":"2000812","revision_id":0},"owners":[80578],"status":"published","created_by":80578},"item_title":"AMD SEV/-ES/-SNPによるネストしたVMの保護方式","author_link":[],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"AMD SEV/-ES/-SNPによるネストしたVMの保護方式","subitem_title_language":"ja"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"仮想マシン","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2025-02-27","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"九州工業大学"},{"subitem_text_value":"九州工業大学"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/2000812/files/IPSJ-OS25166006.pdf","label":"IPSJ-OS25166006.pdf"},"date":[{"dateType":"Available","dateValue":"2027-02-27"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-OS25166006.pdf","filesize":[{"value":"835.9 KB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"11"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"efbcbb6f-6d11-4513-9286-8c2a2ced6be7","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2025 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"瀧口,和樹"}]},{"creatorNames":[{"creatorName":"光来,健一"}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10444176","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8795","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"機密性の高い情報がクラウドでも扱われるようになり，クラウドの内部犯などから仮想マシン(VM)内の機密情報を盗まれる危険性が増している．そのため，最近のクラウドはメモリを透過的に暗号化するAMD SEVと呼ばれる機能を用いたConfidential VMを提供している．SEV-ESと呼ばれる拡張ではレジスタの状態も暗号化され，SEV-SNPと呼ばれる拡張ではメモリの整合性なども保護される．しかし，VM内で動作するネストしたVMに対するSEVのサポートはまだ十分ではない．本稿では，ネストしたVMをSEV，SEV-ES，SEV-SNPで保護することを可能にするNested SEVを提案する．Nested SEVはSEV仮想化とSEVパススルーの2つの保護方式を提供する．SEV仮想化は仮想SEVをネストしたVMに適用し，外側のVMとは異なる鍵を用いてメモリとレジスタを暗号化する．一方，SEVパススルーは外側のVMに適用されているSEVをそのままネストしたVMにも適用し，同じ鍵を用いてメモリとレジスタを暗号化する．これらの方式をKVM，BitVisor，Xen (準仮想化) に実装し，Nested SEVの性能を調べる実験を行った．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"13","bibliographic_titles":[{"bibliographic_title":"研究報告システムソフトウェアとオペレーティング・システム（OS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2025-02-27","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicVolumeNumber":"2025-OS-166"}]},"relation_version_is_last":true,"weko_creator_id":"80578"},"id":2000812,"updated":"2025-02-27T01:51:49.097603+00:00","links":{},"created":"2025-02-21T01:44:10.908499+00:00"}