Messages in this thread | | | Subject | Re: [PATCH] KVM: VMX: Check if bus lock vmexit was preempted | From | Paolo Bonzini <> | Date | Thu, 23 Sep 2021 08:37:21 +0200 |
| |
On 23/09/21 02:59, Hao Xiang wrote: > EXIT_REASON.bus_lock_detected may or may not be set when > exit_reason=EXIT_REASON_BUS_LOCK, It clould depend on hardware > implementaion. No matter when intel states it clearly, I think it is > better that we avoid repeated assignment by adding additional check > condition in vmx_handle_exit. Of course , it is also ok that > hand_bus_lock_vmexit do nothing , but the code is not clear, and the > code logic will be inconsistent with spec description.
For 5.16 we'll go with something like Sean's sketch, that sets the bus_lock_detected bit on EXIT_REASON_BUS_LOCK.
Paolo
| |