Notify VM exit is introduced to mitigate the potential DOS attach from malicious VM. This series is the userspace part to enable this feature through a new KVM capability KVM_CAP_X86_NOTIFY_VMEXIT. The corresponding KVM patch series is available at https://lore.kernel.org/lkml/20220318074955.22428-1-chenyi.qiang@xxxxxxxxx/ --- Change logs: v1 -> v2 - Add some commit message to explain why we disable Notify VM exit by default. - Rename KVM_VCPUEVENT_SHUTDOWN to KVM_VCPUEVENT_TRIPLE_FAULT. - Do the corresponding change to use the KVM_VCPUEVENTS_TRIPLE_FAULT to save/restore the triple fault event to avoid lose some synthesized triple fault from KVM. - v1: https://lore.kernel.org/qemu-devel/20220310090205.10645-1-chenyi.qiang@xxxxxxxxx/ --- Chenyi Qiang (3): linux-headers: Sync the linux headers i386: kvm: Save&restore triple fault event i386: Add notify VM exit support hw/i386/x86.c | 24 +++++++++++++ include/hw/i386/x86.h | 3 ++ linux-headers/asm-x86/kvm.h | 4 +++ linux-headers/linux/kvm.h | 29 +++++++++++++--- target/i386/cpu.c | 1 + target/i386/cpu.h | 1 + target/i386/kvm/kvm.c | 68 ++++++++++++++++++++++++++----------- 7 files changed, 105 insertions(+), 25 deletions(-) -- 2.17.1
