Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sun, 24 Dec 2023 11:32:25 +0100 | From | Lukas Wunner <> | Subject | Re: [RFC PATCH v6 2/4] iommu/vt-d: don's issue devTLB flush request when device is disconnected |
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On Sun, Dec 24, 2023 at 12:06:55AM -0500, Ethan Zhao wrote: > --- a/drivers/iommu/intel/pasid.c > +++ b/drivers/iommu/intel/pasid.c > @@ -481,6 +481,9 @@ devtlb_invalidation_with_pasid(struct intel_iommu *iommu, > if (!info || !info->ats_enabled) > return; > > + if (pci_dev_is_disconnected(to_pci_dev(dev))) > + return; > + > sid = info->bus << 8 | info->devfn; > qdep = info->ats_qdep; > pfsid = info->pfsid;
Do you even need this or is patch [4/4] sufficient? Is there a benefit to the hunk above on top of patch [4/4]?
Thanks,
Lukas
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