Hi, > -----邮件原件----- > 发件人: Lu Baolu [mailto:baolu...@linux.intel.com] > 发送时间: 2019年12月25日 10:01 > 收件人: Jim,Yan <jim...@baidu.com>; Jerry Snitselaar <jsnit...@redhat.com> > 抄送: iommu@lists.linux-foundation.org; linux-ker...@vger.kernel.org > 主题: Re: 答复: 答复: 答复: 答复: [PATCH] iommu/vt-d: Don't reject nvme > host due to scope mismatch > > Hi, > > On 2019/12/25 9:52, Jim,Yan wrote: > > Hi, > > > >> -----邮件原件----- > >> 发件人: Lu Baolu [mailto:baolu...@linux.intel.com] > >> 发送时间: 2019年12月24日 19:27 > >> 收件人: Jim,Yan <jim...@baidu.com>; Jerry Snitselaar > >> <jsnit...@redhat.com> > >> 抄送: iommu@lists.linux-foundation.org; linux-ker...@vger.kernel.org > >> 主题: Re: 答复: 答复: 答复: [PATCH] iommu/vt-d: Don't reject nvme host > due to > >> scope mismatch > >> > >> Hi, > >> > >> On 2019/12/24 16:18, Jim,Yan wrote: > >>>>>> For both cases, a quirk flag seems to be more reasonable, so that > >>>>>> unrelated devices will not be impacted. > >>>>>> > >>>>>> Best regards, > >>>>>> baolu > >>>>> Hi Baolu, > >>>>> Thanks for your advice. And I modify the patch as follow. > >>>> I just posted a patch for both NTG and NVME cases. Can you please > >>>> take a > >> look? > >>>> Does it work for you? > >>>> > >>>> Best regards, > >>>> baolu > >>>> > >>> I have tested your patch. It does work for me. But I prefer my > >>> second version, > >> it is more flexible, and may use for similar unknown devices. > >>> > >> > >> I didn't get your point. Do you mind explaining why it's more flexible? > >> > >> Best regards, > >> Baolu > > For example, an unknown device has a normal PCI header and bridge scope > and a class of PCI_CLASS_BRIDGE_PCI. > > These devices do have a class of PCI_BASE_CLASS_BRIDGE in common. > > This is not a common case. It's only for devices on the marketing and hard for > the VT-d users to get it fixed in the OEM firmware. > > Best regards, > Baolu
Got it. Then I am OK with this patch. I have tested it yesterday. It does work for me. Thanks. Jim _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
