On 9/30/2022 1:28 AM, Paolo Bonzini wrote:
On 9/29/22 09:03, Chenyi Qiang wrote:
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 detailed
info can be seen in Patch 4.
The corresponding KVM support can be found in linux 6.0-rc:
(2f4073e08f4c KVM: VMX: Enable Notify VM exit)
Thanks, I will queue this in my next pull request.
Paolo
Thanks Paolo!
Please take the resend version at
https://lore.kernel.org/qemu-devel/20220929072014.20705-1-chenyi.qiang@xxxxxxxxx/
There's a minor compile issue in this one.
Chenyi
---
Change logs:
v7 -> v8
- Add triple_fault_pending field transmission on migration (Paolo)
- Change the notify-vmexit and notify-window to the accelerator
property. Add it as
a x86-specific property. (Paolo)
- Add a preparation patch to expose struct KVMState in order to add
target-specific property.
- Define three option for notify-vmexit. Make it on by default. (Paolo)
- Raise a KVM internal error instead of triple fault if invalid
context of guest VMCS detected.
- v7:
https://lore.kernel.org/qemu-devel/20220923073333.23381-1-chenyi.qiang@xxxxxxxxx/
v6 -> v7
- Add a warning message when exiting to userspace (Peter Xu)
- v6:
https://lore.kernel.org/all/20220915092839.5518-1-chenyi.qiang@xxxxxxxxx/
v5 -> v6
- Add some info related to the valid range of notify_window in patch
2. (Peter Xu)
- Add the doc in qemu-options.hx. (Peter Xu)
- v5:
https://lore.kernel.org/qemu-devel/20220817020845.21855-1-chenyi.qiang@xxxxxxxxx/
---
Chenyi Qiang (3):
i386: kvm: extend kvm_{get, put}_vcpu_events to support pending triple
fault
kvm: expose struct KVMState
i386: add notify VM exit support
Paolo Bonzini (1):
kvm: allow target-specific accelerator properties
accel/kvm/kvm-all.c | 78 ++-----------------------
include/sysemu/kvm.h | 2 +
include/sysemu/kvm_int.h | 75 ++++++++++++++++++++++++
qapi/run-state.json | 17 ++++++
qemu-options.hx | 11 ++++
target/arm/kvm.c | 4 ++
target/i386/cpu.c | 1 +
target/i386/cpu.h | 1 +
target/i386/kvm/kvm.c | 121 +++++++++++++++++++++++++++++++++++++++
target/i386/machine.c | 20 +++++++
target/mips/kvm.c | 4 ++
target/ppc/kvm.c | 4 ++
target/riscv/kvm.c | 4 ++
target/s390x/kvm/kvm.c | 4 ++
14 files changed, 272 insertions(+), 74 deletions(-)
