[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] AMD IOMMU: add locking missing from c/s 26198:ba90ecb0231f
On 30/11/2012 08:02, "Jan Beulich" <JBeulich@xxxxxxxx> wrote: > An oversight of mine; I'm sorry. > > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Acked-by: Keir Fraser <keir@xxxxxxx> > --- a/xen/drivers/passthrough/amd/iommu_init.c > +++ b/xen/drivers/passthrough/amd/iommu_init.c > @@ -795,6 +795,7 @@ static bool_t __init set_iommu_interrupt > static void enable_iommu(struct amd_iommu *iommu) > { > unsigned long flags; > + struct irq_desc *desc; > > spin_lock_irqsave(&iommu->lock, flags); > > @@ -812,7 +813,11 @@ static void enable_iommu(struct amd_iomm > if ( iommu_has_feature(iommu, IOMMU_EXT_FEATURE_PPRSUP_SHIFT) ) > register_iommu_ppr_log_in_mmio_space(iommu); > > - set_msi_affinity(irq_to_desc(iommu->msi.irq), &cpu_online_map); > + desc = irq_to_desc(iommu->msi.irq); > + spin_lock(&desc->lock); > + set_msi_affinity(desc, &cpu_online_map); > + spin_unlock(&desc->lock); > + > amd_iommu_msi_enable(iommu, IOMMU_CONTROL_ENABLED); > > set_iommu_ht_flags(iommu); > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxx > http://lists.xen.org/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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