[Xen-changelog] [xen master] IOMMU: propagate IOMMU Device-TLB flush error up to IOMMU mapping (top level ones)

[patchbot@xxxxxxx]

commit 23a2eb0436ea156d2dd19317618cd7884dd7b366
Author:     Quan Xu <quan.xu@xxxxxxxxx>
AuthorDate: Fri Jun 17 10:24:02 2016 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Jun 17 10:24:02 2016 +0200

    IOMMU: propagate IOMMU Device-TLB flush error up to IOMMU mapping (top 
level ones)
    
    Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
    Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>
    Acked-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Julien Grall <julien.grall@xxxxxxx>
---
 xen/drivers/passthrough/arm/smmu.c            | 4 ++--
 xen/drivers/passthrough/vtd/iommu.c           | 7 ++++---
 xen/include/asm-x86/hvm/svm/amd-iommu-proto.h | 4 ++--
 xen/include/xen/iommu.h                       | 4 ++--
 4 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/xen/drivers/passthrough/arm/smmu.c 
b/xen/drivers/passthrough/arm/smmu.c
index 1ce4ddf..58fde32 100644
--- a/xen/drivers/passthrough/arm/smmu.c
+++ b/xen/drivers/passthrough/arm/smmu.c
@@ -2745,8 +2745,8 @@ static void arm_smmu_iommu_domain_teardown(struct domain 
*d)
        xfree(xen_domain);
 }
 
-static int arm_smmu_map_page(struct domain *d, unsigned long gfn,
-                            unsigned long mfn, unsigned int flags)
+static int __must_check arm_smmu_map_page(struct domain *d, unsigned long gfn,
+                       unsigned long mfn, unsigned int flags)
 {
        p2m_type_t t;
 
diff --git a/xen/drivers/passthrough/vtd/iommu.c 
b/xen/drivers/passthrough/vtd/iommu.c
index 4844193..e900019 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -1687,9 +1687,10 @@ static void iommu_domain_teardown(struct domain *d)
     spin_unlock(&hd->arch.mapping_lock);
 }
 
-static int intel_iommu_map_page(
-    struct domain *d, unsigned long gfn, unsigned long mfn,
-    unsigned int flags)
+static int __must_check intel_iommu_map_page(struct domain *d,
+                                             unsigned long gfn,
+                                             unsigned long mfn,
+                                             unsigned int flags)
 {
     struct domain_iommu *hd = dom_iommu(d);
     struct dma_pte *page = NULL, *pte = NULL, old, new = { 0 };
diff --git a/xen/include/asm-x86/hvm/svm/amd-iommu-proto.h 
b/xen/include/asm-x86/hvm/svm/amd-iommu-proto.h
index c717cf6..1b571b0 100644
--- a/xen/include/asm-x86/hvm/svm/amd-iommu-proto.h
+++ b/xen/include/asm-x86/hvm/svm/amd-iommu-proto.h
@@ -52,8 +52,8 @@ int amd_iommu_init(void);
 int amd_iommu_update_ivrs_mapping_acpi(void);
 
 /* mapping functions */
-int amd_iommu_map_page(struct domain *d, unsigned long gfn, unsigned long mfn,
-                       unsigned int flags);
+int __must_check amd_iommu_map_page(struct domain *d, unsigned long gfn,
+                                    unsigned long mfn, unsigned int flags);
 int __must_check amd_iommu_unmap_page(struct domain *d, unsigned long gfn);
 u64 amd_iommu_get_next_table_from_pte(u32 *entry);
 int amd_iommu_reserve_domain_unity_map(struct domain *domain,
diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h
index f45fa5a..2b86710 100644
--- a/xen/include/xen/iommu.h
+++ b/xen/include/xen/iommu.h
@@ -166,8 +166,8 @@ struct iommu_ops {
 #endif /* HAS_PCI */
 
     void (*teardown)(struct domain *d);
-    int (*map_page)(struct domain *d, unsigned long gfn, unsigned long mfn,
-                    unsigned int flags);
+    int __must_check (*map_page)(struct domain *d, unsigned long gfn,
+                                 unsigned long mfn, unsigned int flags);
     int __must_check (*unmap_page)(struct domain *d, unsigned long gfn);
     void (*free_page_table)(struct page_info *);
 #ifdef CONFIG_X86
--
generated by git-patchbot for /home/xen/git/xen.git#master

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog