Device driver can modify MSI data/address when MSI is enabled. This patch
reflect the moditication to KVM.
Signed-off-by: Sheng Yang <sheng@xxxxxxxxxxxxxxx>
---
hw/device-assignment.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
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;
}
--
1.7.0.1
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