Re: [Xen-devel] [xen-unstable test] 104131: regressions - FAIL

["Xuquan (Quan Xu)" <xuquan8@xxxxxxxxxx>]

On January 20, 2017 5:09 PM, Quan Xu wrote:
>btw, for PIR.. I find that there might be a bug in
>__vmx_deliver_posted_interrupt()...
>why test_and_set_bit(VCPU_KICK_SOFTIRQ, &softirq_pending(cpu)) ??
>
>static void __vmx_deliver_posted_interrupt(struct vcpu *v) { ...
>        if ( !test_and_set_bit(VCPU_KICK_SOFTIRQ,
>&softirq_pending(cpu)) ...
>}
>
>Suppose that vCPUx is in guest mode, there are two (even more) interrupts
>to vCPUx..
>As the bit is set when delivers the first interrupt... the second interrupt is
>pending until next VM entry -- by PIR to vIRR..
>

Jan , Kevin
Correct me if I am wrong...

Quan


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