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Many KVM Updates Merged For Linux 6.15
This morning's Intel TDX update reminded me that I still hadn't gotten around to digging into the Kernel-based Virtual Machine (KVM) changes merged last week for the ongoing Linux 6.15 kernel merge window
KVM on x86 added support for aging of Shadow Page Table Entries (SPTEs) without holding the MMU lock. AMD-specific KVM work for Linux 6.15 includes better handling of the PSP driver, avoiding excessive fragmentation within encrypted memory regions, support for Idle HLT interception, and other fixes. The Intel-specific KVM code for Linux 6.15 brings several bug fixes, including preparation work for FRED virtualization support around Flexible Return Event Delivery.
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