On Fri, Nov 11, 2022 at 12:57:58PM +0100, Paolo Bonzini wrote: > On 11/11/22 11:45, Peter Zijlstra wrote: > > > What is "correct" in this context? > > > > I don't know since I don't really speak virt, but I could image the > > regset that would match the vmrun (or whatever intel decided to call > > that again) instruction. > > Right now it is not exactly that but close. The RIP is somewhere in > vmx_do_interrupt_nmi_irqoff; CS/SS are correct (i.e. it's not like they > point to guest values!) and other registers including RSP and RFLAGS are > consistent with the RIP. *phew*, that sounds a *lot* better than 'random'. And yes, that should do. Another thing; these patches appear to be about system vectors and everything, but what I understand from Andrew is that VMX is only screwy vs NMI, not regular interrupts/exceptions, so where does that come from? SVM specifically fixed the NMI wonkyness with their Global Interrupt flag thingy.
