diff options
Diffstat (limited to 'src/interface/efi/efi_pci.c')
| -rw-r--r-- | src/interface/efi/efi_pci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/interface/efi/efi_pci.c b/src/interface/efi/efi_pci.c index 4796201e9..e2eeeb344 100644 --- a/src/interface/efi/efi_pci.c +++ b/src/interface/efi/efi_pci.c @@ -785,12 +785,22 @@ int efipci_info ( EFI_HANDLE device, struct efi_pci_device *efipci ) { */ static int efipci_supported ( EFI_HANDLE device ) { struct efi_pci_device efipci; + uint8_t hdrtype; int rc; /* Get PCI device information */ if ( ( rc = efipci_info ( device, &efipci ) ) != 0 ) return rc; + /* Do not attempt to drive bridges */ + hdrtype = efipci.pci.hdrtype; + if ( ( hdrtype & PCI_HEADER_TYPE_MASK ) != PCI_HEADER_TYPE_NORMAL ) { + DBGC ( device, "EFIPCI " PCI_FMT " type %02x is not type %02x\n", + PCI_ARGS ( &efipci.pci ), hdrtype, + PCI_HEADER_TYPE_NORMAL ); + return -ENOTTY; + } + /* Look for a driver */ if ( ( rc = pci_find_driver ( &efipci.pci ) ) != 0 ) { DBGC ( device, "EFIPCI " PCI_FMT " (%04x:%04x class %06x) " |