Re: [PATCH 1/2] KVM: not register a IRQ bypass producer if unsupported or disabled

2020-10-20 Thread Zhenzhong Duan
On Tue, Oct 20, 2020 at 2:23 PM Jason Wang wrote: > > > On 2020/10/19 下午5:06, Zhenzhong Duan wrote: > > If Post interrupt is disabled due to hardware limit or forcely disabled > > by "intremap=nopost" parameter, return -EINVAL so that the legacy mode IRQ > > isn't registered as IRQ bypass producer

Re: [PATCH 1/2] KVM: not register a IRQ bypass producer if unsupported or disabled

2020-10-19 Thread Jason Wang
On 2020/10/19 下午5:06, Zhenzhong Duan wrote: If Post interrupt is disabled due to hardware limit or forcely disabled by "intremap=nopost" parameter, return -EINVAL so that the legacy mode IRQ isn't registered as IRQ bypass producer. Is there any side effect if it was still registered? Wit

[PATCH 1/2] KVM: not register a IRQ bypass producer if unsupported or disabled

2020-10-19 Thread Zhenzhong Duan
If Post interrupt is disabled due to hardware limit or forcely disabled by "intremap=nopost" parameter, return -EINVAL so that the legacy mode IRQ isn't registered as IRQ bypass producer. With this change, below message is printed: "vfio-pci :db:00.0: irq bypass producer (token 60c8cda