qemu-kvm: device assignment: Reflect assigned device's MSI data/address modification to KVM

Commit Message

Sheng Yang Sept. 28, 2010, 8:34 a.m. UTC

None

Patch

diff --git a/hw/device-assignment.c b/hw/device-assignment.c
index 87f7418..1e83495 100644
--- a/hw/device-assignment.c
+++ b/hw/device-assignment.c
@@ -1283,7 +1283,8 @@  static void assigned_device_pci_cap_write_config(PCIDevice *pci_dev, uint32_t ad
 #ifdef KVM_CAP_DEVICE_MSI
     if (assigned_dev->cap.available & ASSIGNED_DEVICE_CAP_MSI) {
         ctrl_pos = pos + PCI_MSI_FLAGS;
-        if (address <= ctrl_pos && address + len > ctrl_pos)
+        /* Cover control, MSI data/addr fields */
+        if (pos <= address && address + len < pos + PCI_MSI_DATA_32 + 2)
             assigned_dev_update_msi(pci_dev, ctrl_pos);
         pos += PCI_CAPABILITY_CONFIG_MSI_LENGTH;
     }