Michael Brown
c6375a85be
[romprefix] Report failure cause when unable to open payload
Report the cause of the failure when we are unable to open the .mrom
payload. There are two possible failure cases:
- Unable to find a suitable memory BAR to borrow (e.g. if the NIC
doesn't have a memory BAR that is at least as large as the
expansion ROM BAR, or if the memory BAR has been assigned a 64-bit
address which won't fit into the 32-bit expansion ROM BAR). This
will be reported as "BABABABA".
- Unable to find correct ROM image within the BAR. This will be
reported as the address (within the borrowed BAR) at which we first
fail to find a valid 55AA signature.
Signed-off-by: Michael Brown <mcb30@ipxe.org>