Re: [RFC KVM 06/27] KVM: x86: Exit KVM isolation on IRQ entry

From: Andy Lutomirski
Date: Mon May 13 2019 - 11:52:53 EST


On Mon, May 13, 2019 at 7:39 AM Alexandre Chartre
<alexandre.chartre@xxxxxxxxxx> wrote:
>
> From: Liran Alon <liran.alon@xxxxxxxxxx>
>
> Next commits will change most of KVM #VMExit handlers to run
> in KVM isolated address space. Any interrupt handler raised
> during execution in KVM address space needs to switch back
> to host address space.
>
> This patch makes sure that IRQ handlers will run in full
> host address space instead of KVM isolated address space.

IMO this needs to be somewhere a lot more central. What about NMI and
MCE? Or async page faults? Or any other entry?

--Andy