diff options
| author |   Don Dugger <n0ano@n0ano.com> | 2016-06-03 03:33:22 +0000 |
|---|---|---|
| committer |   Gerrit Code Review <gerrit@172.30.200.206> | 2016-06-03 03:33:23 +0000 |
| commit | da27230f80795d0028333713f036d44c53cb0e68 (patch) | |
| tree | b3d379eaf000adf72b36cb01cdf4d79c3e3f064c /qemu/roms/seabios/src/hw/pci.c | |
| parent | 0e68cb048bb8aadb14675f5d4286d8ab2fc35449 (diff) | |
| parent | 437fd90c0250dee670290f9b714253671a990160 (diff) | |
Merge "These changes are the raw update to qemu-2.6."
Diffstat (limited to 'qemu/roms/seabios/src/hw/pci.c')
| -rw-r--r-- | qemu/roms/seabios/src/hw/pci.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/qemu/roms/seabios/src/hw/pci.c b/qemu/roms/seabios/src/hw/pci.c index 0379b558e..a241d0675 100644 --- a/qemu/roms/seabios/src/hw/pci.c +++ b/qemu/roms/seabios/src/hw/pci.c @@ -221,16 +221,21 @@ pci_find_init_device(const struct pci_device_id *ids, void *arg) return NULL; } -u8 pci_find_capability(struct pci_device *pci, u8 cap_id) +u8 pci_find_capability(struct pci_device *pci, u8 cap_id, u8 cap) { int i; - u8 cap; u16 status = pci_config_readw(pci->bdf, PCI_STATUS); if (!(status & PCI_STATUS_CAP_LIST)) return 0; - cap = pci_config_readb(pci->bdf, PCI_CAPABILITY_LIST); + if (cap == 0) { + /* find first */ + cap = pci_config_readb(pci->bdf, PCI_CAPABILITY_LIST); + } else { + /* find next */ + cap = pci_config_readb(pci->bdf, cap + PCI_CAP_LIST_NEXT); + } for (i = 0; cap && i <= 0xff; i++) { if (pci_config_readb(pci->bdf, cap + PCI_CAP_LIST_ID) == cap_id) return cap; |