1 files changed, 6 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 2793a1b100e6..f15222bbe136 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -171,6 +171,7 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
         struct pci_dn *pdn;
         int hwirq, virq, i, rc;
         struct msi_desc *entry;
+        struct msi_msg msg;
 
         pdn = get_pdn(pdev);
         if (!pdn)
@@ -213,6 +214,11 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 
                 dev_dbg(&pdev->dev, "rtas_msi: allocated virq %d\n", virq);
                 set_irq_msi(virq, entry);
+
+                /* Read config space back so we can restore after reset */
+                read_msi_msg(virq, &msg);
+                entry->msg = msg;
+
                 unmask_msi_irq(virq);
         }