Revision ca77089d hw/pci.c
| b/hw/pci.c | ||
|---|---|---|
| 1682 | 1682 |
pdev->rom_offset = 0; |
| 1683 | 1683 |
} |
| 1684 | 1684 |
|
| 1685 |
/* Reserve space and add capability to the linked list in pci config space */ |
|
| 1686 |
int pci_add_capability_at_offset(PCIDevice *pdev, uint8_t cap_id, |
|
| 1687 |
uint8_t offset, uint8_t size) |
|
| 1685 |
/* |
|
| 1686 |
* if !offset |
|
| 1687 |
* Reserve space and add capability to the linked list in pci config space |
|
| 1688 |
* |
|
| 1689 |
* if offset = 0, |
|
| 1690 |
* Find and reserve space and add capability to the linked list |
|
| 1691 |
* in pci config space */ |
|
| 1692 |
int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, |
|
| 1693 |
uint8_t offset, uint8_t size) |
|
| 1688 | 1694 |
{
|
| 1689 |
uint8_t *config = pdev->config + offset; |
|
| 1695 |
uint8_t *config; |
|
| 1696 |
if (!offset) {
|
|
| 1697 |
offset = pci_find_space(pdev, size); |
|
| 1698 |
if (!offset) {
|
|
| 1699 |
return -ENOSPC; |
|
| 1700 |
} |
|
| 1701 |
} |
|
| 1702 |
|
|
| 1703 |
config = pdev->config + offset; |
|
| 1690 | 1704 |
config[PCI_CAP_LIST_ID] = cap_id; |
| 1691 | 1705 |
config[PCI_CAP_LIST_NEXT] = pdev->config[PCI_CAPABILITY_LIST]; |
| 1692 | 1706 |
pdev->config[PCI_CAPABILITY_LIST] = offset; |
| ... | ... | |
| 1699 | 1713 |
return offset; |
| 1700 | 1714 |
} |
| 1701 | 1715 |
|
| 1702 |
/* Find and reserve space and add capability to the linked list |
|
| 1703 |
* in pci config space */ |
|
| 1704 |
int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, uint8_t size) |
|
| 1705 |
{
|
|
| 1706 |
uint8_t offset = pci_find_space(pdev, size); |
|
| 1707 |
if (!offset) {
|
|
| 1708 |
return -ENOSPC; |
|
| 1709 |
} |
|
| 1710 |
return pci_add_capability_at_offset(pdev, cap_id, offset, size); |
|
| 1711 |
} |
|
| 1712 |
|
|
| 1713 | 1716 |
/* Unlink capability from the pci config space. */ |
| 1714 | 1717 |
void pci_del_capability(PCIDevice *pdev, uint8_t cap_id, uint8_t size) |
| 1715 | 1718 |
{
|
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