This series turns off the NX Huge Page recovery worker when any memslot
has dirty logging enabled. This avoids theoretical performance problems
and reduces the CPU usage of NX Huge Pages when a VM is in the pre-copy
phase of a Live Migration.
Tested manually and ran all selftests.
David Matlack (2):
KVM: Keep track of the number of memslots with dirty logging enabled
KVM: x86/mmu: Do not recover NX Huge Pages when dirty logging is
enabled
arch/x86/kvm/mmu/mmu.c | 8 ++++++++
include/linux/kvm_host.h | 2 ++
virt/kvm/kvm_main.c | 10 ++++++++++
3 files changed, 20 insertions(+)
base-commit: e18d6152ff0f41b7f01f9817372022df04e0d354
--
2.38.1.273.g43a17bfeac-goog
