On 04/15/2010 12:44 PM, oerg Roedel wrote:
So, we'd need something like the following: if (exit == NMI) __get_cpu_var(nmi_vcpu) = vcpu; stgi(); if (exit == NMI) { while (!nmi_handled()) cpu_relax(); __get_cpu_var(nmi_vcpu) = NULL; }Hmm, looks a bit complicated to me. The NMI should happen shortly after the stgi instruction. Interrupts are still disabled so we stay on this cpu. Can't we just set and erase the cpu_var at vcpu_load/vcpu_put time?
That means an NMI that happens outside guest code (for example, in the mmu, or during the exit itself) would be counted as if in guest code.
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