Hi Quan,
On 16/09/2015 14:24, Quan Xu wrote:
diff --git a/xen/include/xen/hvm/iommu.h b/xen/include/xen/hvm/iommu.h
index e40fc7b..5dc0033 100644
--- a/xen/include/xen/hvm/iommu.h
+++ b/xen/include/xen/hvm/iommu.h
Same remarks as the previous patches for the fields, prototype and macros.
@@ -53,11 +53,15 @@ struct hvm_iommu {
struct qi_talbe talbe;
bool_t qi_flag;
+ struct page_list_head qi_hold_page_list;
+ spinlock_t qi_lock;
+
/* Features supported by the IOMMU */
DECLARE_BITMAP(features, IOMMU_FEAT_count);
};
void do_qi_flushing(struct domain *d);
+void qi_hold_page(struct domain *d, struct page_info *pg);
#define iommu_set_feature(d, f) set_bit((f), domain_hvm_iommu(d)->features)
#define iommu_clear_feature(d, f) clear_bit((f),
domain_hvm_iommu(d)->features)
@@ -68,5 +72,9 @@ void do_qi_flushing(struct domain *d);
(d->arch.hvm_domain.hvm_iommu.talbe.qi_table_poll_slot)
#define QI_FLUSHING(d) \
(d->arch.hvm_domain.hvm_iommu.qi_flag)
+#define qi_hold_page_list(d) \
+ (d->arch.hvm_domain.hvm_iommu.qi_hold_page_list)
+#define qi_page_lock(d) \
+ (d->arch.hvm_domain.hvm_iommu.qi_lock)
#endif /* __XEN_HVM_IOMMU_H__ */
Regards,
--
Julien Grall
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