Google Cloud推出第4代Intel Xeon、AMD EPYC為基礎的機密運算服務
支付動態 · 2024-10-03

Google Cloud的C3 machine系列Confidential VM採用第4代Intel Xeon處理器,至於AMD-based Confidential VM則擴及到今年8月推出的C3D machine系列

/AMD

Google Cloud宣布採用英特爾Xeon和AMD EPYC為基礎的機密運算服務昨(2)日正式上線。

Google和英特爾及AMD分別合作推出機密運算服務Confidential VM,前者是使用英特爾硬體記憶體加密技術Intel TDX(Trust Domain Extension),後者則是使用AMD SEV(Secure Encrypted Virtualization)技術。

Google和英特爾合作Confidential VM名為C3 machine系列,它是以英特爾Intel Xeon Scalable處理器及Google Titanium為基礎。最新的C3 machine系列Confidential VM採用第4代Intel Xeon處理器(代號Sapphire Rapids),特色是最高提供60個核心和120執行緒,具備DDR5記憶體及專用硬體加速AMX(Advanced Matrix Extensions)技術。AMX使用新指令集,透過專用硬體加速提高矩陣運算,支援矩陣相乘及卷積運算,提供用戶執行深度學習和資料分析。Google指出,新C3系列結合Confidential VM和Intel AMX,讓用戶得以執行AI/ML應用,且增加安全防護。

和AMD合作方面,之前以AMD處理器為基礎的Google Cloud VM服務,只有N2D和C2D machine系列提供機密運算。最新服務則是Google將AMD-based Confidential VM擴及到今年8月推出的C3D,後者是以第4代AMD Zen架構EPYC(代號Genoa)處理器為基礎,最高提供96核心和196執行緒,不僅提供硬體加密和多層安全的虛擬化,還因使用專用AI指令集,強化機器學習和深度學習應用中的效能。

今年6月Google Cloud還另外宣布N2D machine服務為基礎的Confidential VM服務提升安全性,將使用的VM加密功能由SEV提升為SEV-SNP(SEV-Secure Nested Paging)。SEV-SNP使用了AMD稱為安全巢狀分頁表(Nested Paging Table)以虛擬層管理記憶體映射及隔離技術,提升資料安全性。

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