RE: [PATCH v2] x86/hyper-v: Zero out the VP ASSIST PAGE to fix CPU offlining

2019-07-30 Thread Michael Kelley
From: Dexuan Cui Sent: Thursday, July 18, 2019 8:23 PM > > The VP ASSIST PAGE is an "overlay" page (see Hyper-V TLFS's Section > 5.2.1 "GPA Overlay Pages" for the details) and here is an excerpt: > > " > The hypervisor defines several special pages that "overlay" the guest's > Guest Physical Add

[PATCH v2] x86/hyper-v: Zero out the VP ASSIST PAGE to fix CPU offlining

2019-07-18 Thread Dexuan Cui
The VP ASSIST PAGE is an "overlay" page (see Hyper-V TLFS's Section 5.2.1 "GPA Overlay Pages" for the details) and here is an excerpt: " The hypervisor defines several special pages that "overlay" the guest's Guest Physical Addresses (GPA) space. Overlays are addressed GPA but are not included i