iommu: Disambiguate MSI region types

[mirror_ubuntu-jammy-kernel.git] / drivers / vfio / vfio_iommu_type1.c

diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index c26fa1f3ed8606e65870f05aa47b7eca5fdf381e..32d2633092a37edf64ec4b9d2afc9fa4f12ea77d 100644 (file)
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -1182,8 +1182,7 @@ static struct vfio_group *find_iommu_group(struct vfio_domain *domain,
        return NULL;
 }
 
-static bool vfio_iommu_has_resv_msi(struct iommu_group *group,
-                                   phys_addr_t *base)
+static bool vfio_iommu_has_sw_msi(struct iommu_group *group, phys_addr_t *base)
 {
        struct list_head group_resv_regions;
        struct iommu_resv_region *region, *next;
@@ -1192,7 +1191,7 @@ static bool vfio_iommu_has_resv_msi(struct iommu_group *group,
        INIT_LIST_HEAD(&group_resv_regions);
        iommu_get_group_resv_regions(group, &group_resv_regions);
        list_for_each_entry(region, &group_resv_regions, list) {
-               if (region->type & IOMMU_RESV_MSI) {
+               if (region->type == IOMMU_RESV_SW_MSI) {
                        *base = region->start;
                        ret = true;
                        goto out;
@@ -1283,7 +1282,7 @@ static int vfio_iommu_type1_attach_group(void *iommu_data,
        if (ret)
                goto out_domain;
 
-       resv_msi = vfio_iommu_has_resv_msi(iommu_group, &resv_msi_base);
+       resv_msi = vfio_iommu_has_sw_msi(iommu_group, &resv_msi_base);
 
        INIT_LIST_HEAD(&domain->group_list);
        list_add(&group->next, &domain->group_list);