https://bugzilla.kernel.org/show_bug.cgi?id=196409 John Kelley (john@xxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |john@xxxxxxxxx --- Comment #14 from John Kelley (john@xxxxxxxxx) --- I am also experiencing the above mentioned issue with very similar performance impact. I am currently not using the virtualization features due to this performance bug with AMD Nested Page Tables. CPU - AMD Ryzen 7 1800x MB - Asus PRIME X370-PRO Host GPU - AMD Radeon 480 Guest GPU - AMD Radeon r290 Host OS - Arch Linux, 4.11.9 kernel (Previously 4.9, 4.10) Guest OS - Windows 10 Pro Anniversary Edition -- You are receiving this mail because: You are watching the assignee of the bug.