[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [PATCH 1/5] AMD IOMMU: bug fix and code cleanup
On 7/31/2008 5:27:45 AM, Wei Wang2 wrote: > init.patch: Since device id covered by each iommu can never overlap, > use a global device table instead of allocating private tables for > each iommu. Migrate a few functions from pci_amd_iommu.c > > -Wei +void __init enable_iommu(struct amd_iommu *iommu) +{ + unsigned long flags; + spin_lock_irqsave(&iommu->lock, flags); - amd_iommu_msi_data_init (iommu, vector); + if ( iommu->enabled ) + return; I just scanned the code for a second, but you might want to add spin_unlock_irqrestore(&iommu->lock, flags) before returning? > > Signed-off-by: Wei Wang <wei.wang2@xxxxxxx> > -- > AMD Saxony, Dresden, Germany > Operating System Research Center > > Legal Information: > AMD Saxony Limited Liability Company & Co. KG Sitz (GeschÃftsanschrift): > Wilschdorfer Landstr. 101, 01109 Dresden, Deutschland Registergericht > Dresden: HRA 4896 vertretungsberechtigter KomplementÃr: AMD Saxony LLC > (Sitz Wilmington, Delaware, USA) GeschÃftsfÃhrer der AMD Saxony LLC: Dr. > Hans-R. Deppe, Thomas McCoy . Jun Nakajima | Intel Open Source Technology Center _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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