Differential D35878 Diff 108498 sys/x86/iommu/intel_ctx.c

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sys/x86/iommu/intel_ctx.c

Show First 20 Lines • Show All 862 Lines • ▼ Show 20 Lines	dmar_domain_free_entry(struct iommu_map_entry *entry, bool free)
IOMMU_DOMAIN_UNLOCK(domain);		IOMMU_DOMAIN_UNLOCK(domain);
if (free)		if (free)
iommu_gas_free_entry(domain, entry);		iommu_gas_free_entry(domain, entry);
else		else
entry->flags = 0;		entry->flags = 0;
}		}

void		void
iommu_domain_unload_entry(struct iommu_map_entry *entry, bool free)		iommu_domain_unload_entry(struct iommu_map_entry *entry, bool free,
		bool cansleep)
{		{
struct dmar_domain *domain;		struct dmar_domain *domain;
struct dmar_unit *unit;		struct dmar_unit *unit;

domain = IODOM2DOM(entry->domain);		domain = IODOM2DOM(entry->domain);
unit = DOM2DMAR(domain);		unit = DOM2DMAR(domain);

		/*
		* If "free" is false, then the IOTLB invalidation must be performed
		* synchronously. Otherwise, the caller might free the entry before
		* dmar_qi_task() is finished processing it.
		*/
if (unit->qi_enabled) {		if (unit->qi_enabled) {
DMAR_LOCK(unit);		DMAR_LOCK(unit);
dmar_qi_invalidate_locked(IODOM2DOM(entry->domain),		if (free) {
entry->start, entry->end - entry->start, &entry->gseq,		dmar_qi_invalidate_locked(domain, entry->start,
true);		entry->end - entry->start, &entry->gseq, true);
if (!free)		TAILQ_INSERT_TAIL(&unit->tlb_flush_entries, entry,
entry->flags \|= IOMMU_MAP_ENTRY_QI_NF;		dmamap_link);
TAILQ_INSERT_TAIL(&unit->tlb_flush_entries, entry, dmamap_link);		} else {
		dmar_qi_invalidate_sync_locked(domain, entry->start,
		entry->end - entry->start, cansleep);
		}
DMAR_UNLOCK(unit);		DMAR_UNLOCK(unit);
} else {		} else {
domain_flush_iotlb_sync(IODOM2DOM(entry->domain),		domain_flush_iotlb_sync(domain, entry->start, entry->end -
entry->start, entry->end - entry->start);		entry->start);
dmar_domain_free_entry(entry, free);		dmar_domain_free_entry(entry, free);
}		}
}		}

static bool		static bool
dmar_domain_unload_emit_wait(struct dmar_domain *domain,		dmar_domain_unload_emit_wait(struct dmar_domain *domain,
struct iommu_map_entry *entry)		struct iommu_map_entry *entry)
{		{
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