JP5944461B2 - 安全な環境を初期化する命令を実行するシステムおよび方法 - Google Patents
安全な環境を初期化する命令を実行するシステムおよび方法 Download PDFInfo
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Description
(付記1) セキュアードエンター命令を実行するセキュアメモリを含む第1の論理プロセッサと、
非プロセッサデバイスによるセキュアードバーチャルマシンモニターへのアクセスを防止するチップセットとを有することを特徴とするシステム。
(付記2) 付記1に記載のシステムであって、前記セキュアードエンター命令は、セキュアオペレーションにおいて、第2の論理プロセッサを前記第1の論理プロセッサと同期させるために、前記第1の論理プロセッサに前記第2の論理プロセッサへ特殊なバスメッセージを発行させることを特徴とするシステム。
(付記3) 付記1に記載のシステムであって、前記セキュアメモリは前記第1の論理プロセッサのキャッシュ内にあることを特徴とするシステム。
(付記4) 付記1に記載のシステムであって、前記セキュアメモリは前記第1の論理プロセッサ以外の回路によるアクセスから保護されていることを特徴とするシステム。
(付記5) 付記1に記載のシステムであって、ダイジェストを記憶するためにプラットフォーム構成レジスタを含むセキュリティトークンをさらに有することを特徴とするシステム。
(付記6) 付記1に記載のシステムであって、前記セキュアードエンター命令からの第1の特殊なバスメッセージに応答する第2の論理プロセッサをさらに有することを特徴とするシステム。
(付記7) 付記6に記載のシステムであって、前記第2の論理プロセッサは、前記第1の特殊なバスメッセージに応じて、カレント命令の実行を終了し、第2の特殊なバスメッセージを発行することを特徴とするシステム。
(付記8) 付記7に記載のシステムであって、前記チップセットは前記第2の特殊なバスメッセージの受信に応じてフラグを設定することを特徴とするシステム。
(付記9) 付記8に記載のシステムであって、前記第2の論理プロセッサは、第3の特殊なバスメッセージに応じて、前記セキュアバーチャルマシンモニターのエントリポイントにジャンプすることを特徴とするシステム。
(付記10) 第1の論理プロセッサと第2の論理プロセッサとを同期させるステップと、
初期化コードモジュールを認証するステップと、
セキュアバーチャルマシンモニターを認証するステップと、
前記セキュアバーチャルマシンモニターを実行するステップとを有することを特徴とする方法。
(付記11) 付記10に記載の方法であって、特殊なバスメッセージに応じて前記第2の論理プロセッサ上で前記セキュアバーチャルマシンモニターを実行するために前記特殊なバスメッセージを前記第2の論理プロセッサに送信するステップをさらに有することを特徴とする方法。
(付記12) 付記10に記載の方法であって、前記同期させるステップは、特殊なバスメッセージが前記第2の論理プロセッサに実行を停止させアクノレッジメントを送信させるステップをさらに有することを特徴とする方法。
(付記13) 付記12に記載の方法であって、前記同期させるステップは、前記アクノレッジメントに応じてチップセットにフラグを設定するステップをさらに有することを特徴とする方法。
(付記14) 付記10に記載の方法であって、前記初期化コードモジュールを認証するステップは、前記初期化コードモジュールのコピーと公開キーとをセキュアメモリに移動するステップを有することを特徴とする方法。
(付記15) 付記14に記載の方法であって、前記初期コードモジュールを認証するステップは、前記初期コードモジュール第1のダイジェストを前記初期コードモジュールの第2のダイジェストと比較するステップを含むことを特徴とする方法。
(付記16) 付記10に記載の方法であって、前記セキュアバーチャルマシンモニターを認証するステップは、前記初期コードモジュールを実行するステップを含むことを特徴とする方法。
(付記17) 付記16に記載の方法であって、前記セキュアバーチャルマシンモニターを認証するステップは、プラットフォーム構成レジスタに前記バーチャルマシンモニターを登録するステップを含むことを特徴とする方法。
(付記18) 第1の論理プロセッサと第2の論理プロセッサとを同期させる手段と、
初期化コードモジュールを認証する手段と、
セキュアバーチャルマシンモニターを認証する手段と、
前記セキュアバーチャルマシンモニターを実行する手段とを有することを特徴とする装置。
(付記19) 付記18に記載の装置であって、特殊なバスメッセージに応じて前記第2の論理プロセッサ上で前記セキュアバーチャルマシンモニターを実行するために前記特殊なバスメッセージを前記第2の論理プロセッサに送信する手段をさらに有することを特徴とする装置。
(付記20) 付記18に記載の装置であって、前記初期化コードモジュールのコピーと公開キーとをセキュアメモリに移動する手段を有することを特徴とする装置。
(付記21) 付記20に記載の装置であって、前記初期コードモジュール第1のダイジェストを前記初期コードモジュールの第2のダイジェストと比較する手段をさらに有することを特徴とする装置。
(付記22) 付記18に記載の装置であって、前記バーチャルマシンモニターを登録する手段をさらに有することを特徴とする装置。
(付記23) セキュアオペレーション初期化をする第1の命令を実行し、セキュア初期化認証済みコードの実行をする時点を検出するセキュアエンターロジックと、
前記第1の命令に応じて第1の特殊なバスメッセージを送信し、前記検出された時点に第2の特殊なバスメッセージを送信するバスメッセージングロジックとを有することを特徴とするプロセッサ。
(付記24) 付記23に記載のプロセッサであって、前記時点は第1の論理プロセッサがアクノレッジメントを発行した後であることを特徴とするプロセッサ。
(付記25) 付記23に記載のプロセッサであって、前記セキュアエンターロジックは、前記時点を決定するためにチップセット中のフラグレジスタをさらに参照することを特徴とするプロセッサ。
(付記26) 付記23に記載のプロセッサであって、前記セキュアエンターロジックは、さらに、前記時点の後にキーを入力しコードモジュールを認証することを特徴とするプロセッサ。
(付記27) 付記23に記載のプロセッサであって、前記バスメッセージングロジックは、さらに、コードエントリポイントを含む第3の特殊なバスメッセージを送信することを特徴とするプロセッサ。
(付記28) 第1の論理プロセッサからの第1の特殊なバスメッセージに応じてセキュアオペレーションを準備するバスメッセージングロジックと、
前記第1の特殊なバスメッセージに応じて第2の論理プロセッサからのアクノレッジメントを記憶するレジスタとを有することを特徴とするチップセット。
(付記29) 付記28に記載のチップセットであって、前記チップセットは、前記第1の論理プロセッサにセキュアオペレーション初期化を進める信号をいつ送るかを決定するために、前記レジスタを論理プロセッサアクティビティと比較することを特徴とするチップセット。
(付記30) 付記29に記載のチップセットであって、前記信号はフラグの設定を含むことを特徴とするチップセット。
(付記31) 付記28に記載のチップセットであって、セキュアバーチャルマシンモニターをロックするデバイスアクセスロジックをさらに有することを特徴とするチップセット。
(付記32) 付記28に記載のチップセットであって、前記第1の特殊なバスメッセージの後に、前記第1の論理プロセッサにキーを送信するキーレジスタをさらに有することを特徴とするチップセット。
(付記33) セキュアエンターロジックと、前記セキュアエンターロジックに応じる第1のバスメッセージングロジックとを有する論理プロセッサと、
前記第1のバスメッセージングロジックから第1の特殊なバスメッセージを受信する第2のバスメッセージングロジックと、アクノレッジメントに応じて設定されるフラグとを有するチップセットとを有することを特徴とするシステム。
(付記34) 付記33に記載のシステムであって、前記セキュアエンターロジックに応じてセキュアオペレーションを起動するセキュア初期化認証済みコードをさらに有することを特徴とするシステム。
(付記35) 付記34に記載のシステムであって、前記セキュア初期化認証済みコードを認証するために前記論理プロセッサにより使用されるキーをさらに有することを特徴とするシステム。
(付記36) 付記34に記載のシステムであって、前記第1のバスメッセージングロジックは第2の特殊なバスメッセージを発行し、前記第2の特殊なバスメッセージの後に前記論理プロセッサは前記セキュア初期化認証済みコードをセキュアメモリに移動することを特徴とするシステム。
(付記37) 付記34に記載のシステムであって、セキュアバーチャルマシンモニターをさらに有することを特徴とするシステム。
(付記38) 付記37に記載のシステムであって、前記セキュア初期化認証済みコードは前記セキュアバーチャルマシンモニターの初期化を実行することを特徴とするシステム。
(付記39) 付記38に記載のシステムであって、前記初期化は認証を含み、前記チップセットは前記初期化に応じて非プロセッサが前記セキュアバーチャルマシンモニターにアクセスするのを防止するデバイスアクセスロジックを含むことを特徴とするシステム。
(付記40) 付記38に記載のシステムであって、前記第1のバスメッセージングロジックは、前記初期化に応じて、第3の特殊なバスメッセージを発行することを特徴とするシステム。
(付記41) 付記40に記載のシステムであって、前記第3の特殊なバスメッセージは、前記セキュアバーチャルマシンモニターのコードエントリポイントを含むことを特徴とするシステム。
(付記42) 特殊なバスメッセージを送信するステップと、
第1の論理プロセッサ内の初期化コードを認証するステップと、
セキュアバーチャルマシンモニターを認証するステップと、
前記第1の論理プロセッサ中の前記セキュアバーチャルマシンモニターを実行するステップとを有することを特徴とする方法。
(付記43) 付記42に記載の方法であって、前記第1のバスメッセージに応じてアクノレッジメントを送信するステップをさらに有することを特徴とする方法。
(付記44) 付記42に記載の方法であって、第2の論理プロセッサにおける実行を停止してアクノレッジメントを送信するステップをさらに有することを特徴とする方法。
(付記45) 付記44に記載の方法であって、前記アクノレッジメントに応じてチップセットにフラグを設定するステップをさらに有することを特徴とする方法。
(付記46) 付記42に記載の方法であって、前記初期化コードを認証するステップは、前記初期化コードのコピーと公開キーをセキュアメモリに移動することを特徴とする方法。
(付記47) 付記46に記載の方法であって、前記初期化コードを認証するステップは、前記初期化コードの第1のダイジェストを前記初期化コードの第2のダイジェストと比較するステップを含むことを特徴とする方法。
(付記48) 付記42に記載の方法であって、前記セキュアバーチャルマシンモニターを認証するステップは、前記初期化コードを実行するステップを含むことを特徴とする方法。
(付記49) 付記48に記載の方法であって、前記セキュアバーチャルマシンモニターを認証するステップは、プラットフォーム構成レジスタに前記バーチャルマシンモニターを登録するステップを含むことを特徴とする方法。
Claims (4)
- プロセッサであって、
セキュア初期化動作をサポートする前記プロセッサのトラステッドメモリと、
セキュア実行環境のルートオブトラストを確立する前記プロセッサのセキュア初期化ロジックと、
前記セキュア実行環境内でセキュア初期化プログラムコードを実行する前記プロセッサの実行ロジックであって、前記セキュア初期化プログラムコードの少なくとも一部は前記トラステッドメモリにコピーされる、実行ロジックとを有し、
前記実行ロジックは実行前に前記セキュア初期化プログラムコードを確認し、
前記実行ロジックはバーチャルマシンモニター(VMM)を確認し、前記セキュア実行環境内のトラステッドシステムメモリに前記VMMをコピーする、
プロセッサ。 - 前記実行ロジックによる前記VMMの確認は、前記VMMの暗号化認証を含む、
請求項1に記載のプロセッサ。 - プロセッサであって、
セキュア初期化動作をサポートする前記プロセッサのトラステッドメモリと、
前記プロセッサの実行ロジックであって、セキュア実行環境のルートオブトラストを確立するセキュア初期化ロジックを含む、実行ロジックとを有し、
前記実行ロジックは前記セキュア実行環境内でセキュア初期化プログラムコードを実行し、前記セキュア初期化プログラムコードの少なくとも一部は前記トラステッドメモリにコピーされ、
前記実行ロジックは実行前に前記セキュア初期化プログラムコードを確認し、
前記実行ロジックはバーチャルマシンモニター(VMM)を確認し、前記セキュア実行環境内のトラステッドシステムメモリに前記VMMをコピーする、
プロセッサ。 - 前記実行ロジックによる前記VMMの確認は前記VMMの暗号化認証を含む、
請求項3に記載のプロセッサ。
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