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-rw-r--r--hw/msix.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/hw/msix.c b/hw/msix.c
index d117bcfaa..bbd54ec95 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -587,3 +587,47 @@ void msix_unuse_all_vectors(PCIDevice *dev)
return;
msix_free_irq_entries(dev);
}
+
+int msix_set_mask_notifier(PCIDevice *dev, unsigned vector, void *opaque)
+{
+ int r;
+ if (vector >= dev->msix_entries_nr || !dev->msix_entry_used[vector])
+ return 0;
+
+ assert(dev->msix_mask_notifier);
+ assert(opaque);
+ assert(!dev->msix_mask_notifier_opaque[vector]);
+
+ if (msix_is_masked(dev, vector)) {
+ return 0;
+ }
+ r = dev->msix_mask_notifier(dev, vector, opaque,
+ msix_is_masked(dev, vector));
+ if (r < 0) {
+ return r;
+ }
+ dev->msix_mask_notifier_opaque[vector] = opaque;
+ return r;
+}
+
+int msix_unset_mask_notifier(PCIDevice *dev, unsigned vector)
+{
+ int r = 0;
+ if (vector >= dev->msix_entries_nr || !dev->msix_entry_used[vector])
+ return 0;
+
+ assert(dev->msix_mask_notifier);
+ assert(dev->msix_mask_notifier_opaque[vector]);
+
+ if (msix_is_masked(dev, vector)) {
+ return 0;
+ }
+ r = dev->msix_mask_notifier(dev, vector,
+ dev->msix_mask_notifier_opaque[vector],
+ msix_is_masked(dev, vector));
+ if (r < 0) {
+ return r;
+ }
+ dev->msix_mask_notifier_opaque[vector] = NULL;
+ return r;
+}