@@ -1883,7 +1883,7 @@ int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
config[PCI_CAP_LIST_NEXT] = pdev->config[PCI_CAPABILITY_LIST];
pdev->config[PCI_CAPABILITY_LIST] = offset;
pdev->config[PCI_STATUS] |= PCI_STATUS_CAP_LIST;
- memset(pdev->used + offset, 0xFF, size);
+ memset(pdev->used + offset, 0xFF, QEMU_ALIGN_UP(size, 4));
/* Make capability read-only by default */
memset(pdev->wmask + offset, 0, size);
/* Check capability by default */
@@ -1903,7 +1903,7 @@ void pci_del_capability(PCIDevice *pdev, uint8_t cap_id, uint8_t size)
memset(pdev->w1cmask + offset, 0, size);
/* Clear cmask as device-specific registers can't be checked */
memset(pdev->cmask + offset, 0, size);
- memset(pdev->used + offset, 0, size);
+ memset(pdev->used + offset, 0, QEMU_ALIGN_UP(size, 4));
if (!pdev->config[PCI_CAPABILITY_LIST])
pdev->config[PCI_STATUS] &= ~PCI_STATUS_CAP_LIST;