Re: [PATCH v8 0/4] Enable notify VM exit

[Paolo Bonzini]

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

> ---
> 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: 
> 20220923073333.23381-1-chenyi.qiang@intel.com/">https://lore.kernel.org/qemu-devel/20220923073333.23381-1-chenyi.qiang@intel.com/
>
> v6 -> v7
> - Add a warning message when exiting to userspace (Peter Xu)
> - v6: 20220915092839.5518-1-chenyi.qiang@intel.com/">https://lore.kernel.org/all/20220915092839.5518-1-chenyi.qiang@intel.com/
>
> 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@intel.com/
>
> ---
>
> 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(-)