Re: [PATCH 0/2] KVM: nVMX: fixes to nested virt interrupt injection

[Mike Galbraith]

On Fri, 2017-07-28 at 09:03 +0200, Paolo Bonzini wrote:
> With these two patches, KVM does not blindly pass the exit interruption
> info and exit qualification from the vmcs02 and vmcs12 when injecting
> an exception.  There were two spots where this was done, namely
> nested_vmx_check_exception and vmx_inject_page_fault_nested.
> 
> Patch 1 avoids writing the vmcs02's VM_EXIT_INTR_ERROR_CODE field,
> which as Jim noticed isn't possible on pre-Haswell machines, but
> otherwise has no semantic effect.
> 
> Patch 2 is the actual bugfix.

I was looking into oodles ofÂlapic_timer.hv_timer_in_use warnings in
RT, introduced by KVM: LAPIC: Fix lapic timer injection delay, when I
noticed this post. ÂHappily, I can report that they are history.

	-Mike