Re: [PATCH 1/2] KVM: x86: set TMR when the interrupt is accepted

From: Paolo Bonzini
Date: Thu Aug 13 2015 - 03:31:58 EST

On 13/08/2015 08:35, Zhang, Yang Z wrote:
>> You may be right. It is safe if no future hardware plans to use
>> it. Let me check with our hardware team to see whether it will be
>> used or not in future.
> After checking with Jun, there is no guarantee that the guest running
> on another CPU will operate properly if hypervisor modify the vTMR
> from another CPU. So the hypervisor should not to do it.

I guess I can cause a vmexit on level-triggered interrupts, it's not a
big deal, but no weasel words, please.

What's going to break, and where is it documented?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at