int amd_iommu_update_ga(int cpu, bool is_run, void *data)
{
- unsigned long flags;
- struct amd_iommu *iommu;
- struct irq_remap_table *table;
struct amd_ir_data *ir_data = (struct amd_ir_data *)data;
- int devid = ir_data->irq_2_irte.devid;
struct irte_ga *entry = (struct irte_ga *) ir_data->entry;
- struct irte_ga *ref = (struct irte_ga *) ir_data->ref;
if (!AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir) ||
- !ref || !entry || !entry->lo.fields_vapic.guest_mode)
+ !entry || !entry->lo.fields_vapic.guest_mode)
return 0;
- iommu = ir_data->iommu;
- if (!iommu)
- return -ENODEV;
-
- table = get_irq_table(iommu, devid);
- if (!table)
+ if (!ir_data->iommu)
return -ENODEV;
- raw_spin_lock_irqsave(&table->lock, flags);
-
- if (ref->lo.fields_vapic.guest_mode) {
- if (cpu >= 0) {
- ref->lo.fields_vapic.destination =
- APICID_TO_IRTE_DEST_LO(cpu);
- ref->hi.fields.destination =
- APICID_TO_IRTE_DEST_HI(cpu);
- }
- ref->lo.fields_vapic.is_run = is_run;
- barrier();
+ if (cpu >= 0) {
+ entry->lo.fields_vapic.destination =
+ APICID_TO_IRTE_DEST_LO(cpu);
+ entry->hi.fields.destination =
+ APICID_TO_IRTE_DEST_HI(cpu);
}
+ entry->lo.fields_vapic.is_run = is_run;
- raw_spin_unlock_irqrestore(&table->lock, flags);
-
- iommu_flush_irt(iommu, devid);
- iommu_completion_wait(iommu);
- return 0;
+ return modify_irte_ga(ir_data->iommu, ir_data->irq_2_irte.devid,
+ ir_data->irq_2_irte.index, entry, ir_data);
}
EXPORT_SYMBOL(amd_iommu_update_ga);
#endif