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

[Chenyi Qiang <chenyi.qiang@intel.com>]

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@intel.com/

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@intel.com/
>>
>> v6 -> v7
>> - Add a warning message when exiting to userspace (Peter Xu)
>> - v6: 
>> 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(-)
>>
>