hw/i386/amd_iommu: Support MMIO writes to the status register

Support the writes to the status register so that guest can reset the
EventOverflow, EventLogInt, ComWaitIntr, etc bits after servicing the
respective interrupt.

Signed-off-by: Sairaj Kodilkar <sarunkod@amd.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Message-Id: <20250801060507.3382-6-sarunkod@amd.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/i386/amd_iommu.c

diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c
index c9c32cf..6925085 100644
--- a/hw/i386/amd_iommu.c
+++ b/hw/i386/amd_iommu.c
@@ -862,6 +862,9 @@
         amdvi_mmio_reg_write(s, size, val, addr);
         amdvi_handle_pprtail_write(s);
         break;
+    case AMDVI_MMIO_STATUS:
+        amdvi_mmio_reg_write(s, size, val, addr);
+        break;
     }
 }