[Feature] Page modification logging
Bug #1397860 reported by
Yingying Zhao
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
intel |
Fix Released
|
Medium
|
Leann Ogasawara |
Bug Description
PML (Page modification logging) is a VT-x feature that allows VMM software to efficiently monitor the guest-physical pages modified during guest execution. It is expected to enhance live migration speed and any other usages that require monitoring guest-physical pages modified during guest execution.
Upstream status:
KVM: target kernel 4.0
Xen: target 4.6
Changed in intel: | |
status: | In Progress → Fix Committed |
information type: | Proprietary → Public |
Changed in intel: | |
status: | Fix Committed → Fix Released |
To post a comment you must log in.
kernel 4.0 implement this feature. slot_remove_ write_access mmu_write_ protect_ pt_masked to be more generic for slot_remove_ write_access.
843e433 KVM: VMX: Add PML support in VMX
88178fd KVM: x86: Add new dirty logging kvm_x86_ops for PML
1c91cad KVM: x86: Change parameter of kvm_mmu_
9b51a63 KVM: MMU: Explicitly set D-bit for writable spte.
f4b4b18 KVM: MMU: Add mmu help functions to support PML
3b0f1d0 KVM: Rename kvm_arch_
d91ffee Optimize TLB flush in kvm_mmu_
7e71a59 KVM: x86: flush TLB when D bit is manually changed.