JP7379516B2 - セキュア・インターフェース制御ストレージのためのホスト仮想アドレス空間使用方法、システム、プログラム - Google Patents
セキュア・インターフェース制御ストレージのためのホスト仮想アドレス空間使用方法、システム、プログラム Download PDFInfo
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Description
Claims (20)
- コンピュータ・システムのセキュア・インターフェース制御において、前記コンピュータ・システムのセキュア・ドメイン内のセキュア・エンティティに関連するデータ構造へのアクセス要求を受信することと、
前記セキュア・インターフェース制御によって、前記データ構造の位置に関連付けられた仮想ストレージ・アドレスをチェックすることと、
前記セキュア・インターフェース制御によって、前記データ構造の前記位置が前記仮想ストレージ・アドレスに関連付けられているとの判定に基づいて、前記コンピュータ・システムの非セキュア・エンティティの仮想アドレス空間を使用するアドレス変換を要求することと、
前記セキュア・インターフェース制御によって、前記アドレス変換の結果に基づいて前記データ構造にアクセスすることと
を含む、方法。 - 前記セキュア・インターフェース制御によって、前記データ構造の前記位置が前記仮想ストレージ・アドレスに関連付けられていないとの判定に基づいて、絶対アドレスを使用して前記データ構造にアクセスすることをさらに含む、請求項1に記載の方法。
- 前記非セキュア・エンティティによって提供された前記仮想ストレージ・アドレスのマッピングを検証することをさらに含む、請求項1または2に記載の方法。
- 前記仮想ストレージ・アドレスの前記マッピングを検証することが、以前のマッピングと比較して前記マッピングの変化をチェックすることを含む、請求項3に記載の方法。
- 前記セキュア・ドメイン内の前記セキュア・エンティティに関連する前記データ構造が、メモリの複数のページ間に分散される、請求項1ないし4のいずれか一項に記載の方法。
- 前記非セキュア・エンティティによって提供されたメモリの前記ページが、連続した範囲の仮想アドレスに常駐する、請求項5に記載の方法。
- 前記仮想ストレージ・アドレスをチェックすることが、ホスト仮想アドレスに関連付けられた仮想アドレス比較が有効であるか無効であるかを判定するために、ゾーン・セキュリティ・テーブルを検査することをさらに含む、請求項1ないし6のいずれか一項に記載の方法。
- 前記セキュア・インターフェース制御が、ファームウェア、ハードウェア、信頼できるソフトウェア、またはファームウェアと、ハードウェアと、信頼できるソフトウェアとの組合せを含む、請求項1ないし7のいずれか一項に記載の方法。
- 前記非セキュア・エンティティが、1つまたは複数のセキュア・ゲストを前記セキュア・エンティティとしてホストするように構成されたハイパーバイザを含む、請求項1ないし8のいずれか一項に記載の方法。
- システムであって、
メモリと、
処理ユニットと、
セキュア・インターフェース制御と
を備え、前記セキュア・インターフェース制御が、
セキュア・ドメイン内のセキュア・エンティティに関連するデータ構造へのアクセス要求を受信することと、
前記メモリ内の前記データ構造の位置に関連付けられた仮想ストレージ・アドレスをチェックすることと、
前記データ構造の前記位置が前記仮想ストレージ・アドレスに関連付けられているとの判定に基づいて、前記処理ユニットの非セキュア・エンティティの仮想アドレス空間を使用するアドレス変換を要求することと、
前記アドレス変換の結果に基づいて前記データ構造にアクセスすることと
を含む複数の動作を実行するように構成される、システム。 - 前記セキュア・インターフェース制御が、
前記データ構造の前記位置が前記仮想ストレージ・アドレスに関連付けられていないとの判定に基づいて、絶対アドレスを使用して前記データ構造にアクセスすることを含む動作を実行するように構成される、請求項10に記載のシステム。 - 前記セキュア・インターフェース制御が、
前記非セキュア・エンティティによって提供された前記仮想ストレージ・アドレスのマッピングを検証することを含む動作を実行するように構成される、請求項10または11に記載のシステム。 - 前記仮想ストレージ・アドレスの前記マッピングを検証することが、以前のマッピングと比較して前記マッピングの変化をチェックすることを含む、請求項12に記載のシステム。
- 前記セキュア・ドメイン内の前記セキュア・エンティティに関連する前記データ構造が、前記メモリの複数のページ間に分散される、請求項10ないし13のいずれか一項に記載のシステム。
- 前記非セキュア・エンティティによって提供された前記メモリの前記ページが、連続した範囲の仮想アドレスに常駐する、請求項14に記載のシステム。
- 前記仮想ストレージ・アドレスをチェックすることが、ホスト仮想アドレスに関連付けられた仮想アドレス比較が有効であるか無効であるかを判定するために、ゾーン・セキュリティ・テーブルを検査することをさらに含む、請求項10ないし15のいずれか一項に記載のシステム。
- 前記セキュア・インターフェース制御が、ファームウェア、ハードウェア、信頼できるソフトウェア、またはファームウェアと、ハードウェアと、信頼できるソフトウェアとの組合せを含む、請求項10ないし16のいずれか一項に記載のシステム。
- 前記非セキュア・エンティティが、1つまたは複数のセキュア・ゲストを前記セキュア・エンティティとしてホストするように構成されたハイパーバイザを含む、請求項10ないし17のいずれか一項に記載のシステム。
- 請求項1~8の何れか1項に記載の方法をコンピュータに実行させる、コンピュータ・プログラム。
- 請求項19に記載の前記コンピュータ・プログラムをコンピュータ可読記憶媒体に記録した、記憶媒体。
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US16/296,301 US11176054B2 (en) | 2019-03-08 | 2019-03-08 | Host virtual address space for secure interface control storage |
US16/296,301 | 2019-03-08 | ||
PCT/EP2020/056033 WO2020182664A1 (en) | 2019-03-08 | 2020-03-06 | Host virtual address space for secure interface control storage |
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JP2022523785A JP2022523785A (ja) | 2022-04-26 |
JPWO2020182664A5 JPWO2020182664A5 (ja) | 2022-08-15 |
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JP (1) | JP7379516B2 (ja) |
KR (1) | KR102551936B1 (ja) |
CN (1) | CN113597609A (ja) |
ES (1) | ES2966715T3 (ja) |
HU (1) | HUE064583T2 (ja) |
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