Re: [PATCH 2/4] KVM: VMX: Handle #MCs on VM-Enter/TD-Enter outside of the fastpath

[Edgecombe, Rick P]

On Mon, 2025-11-17 at 14:38 +0200, Tony Lindgren wrote:
> I bisected kvm-x86/next down to this change for a TDX guest not
> booting and host producing errors like:
> 
> watchdog: CPU118: Watchdog detected hard LOCKUP on cpu 118
> 
> Dropping the is_td_vcpu(vcpu) check above fixes the issue. Earlier
> the call for vmx_handle_exit_irqoff() was unconditional.
> 
> Probably the (u16) cast above can be dropped too? It was never used
> for TDX looking at the patch.

Ah! Thanks for picking this up. I had almost got there but lost my TDX
machine for a bit.