On 01/11/18 18:16, Stefan Berger wrote: > I can only point to the standard for the address. If QEMU has an API > where we can first try to allocate fed4 0000 and if that fails ask for > another address, then we can use that. But does driver initialization > work that way that we can first let all other devices register their > MMIO requirements and then the TPM device ask whether fed4 0000 is > available and then falls back to using a random address?
As far as I understand, QEMU would keep the base address generally fixed, but it could be moved if (a) another platform device comes along that needs a large contiguous area and it cannot be accommodated without moving other devices around, or (b) the user wanted to move the address on the command line for whatever reason. So, I don't think the QEMU API that you describe exists, or that there's a use case for it. AFAICT board code is expected to place platform devices up-front so that the latter peacefully co-exist. Thanks, Laszlo _______________________________________________ SeaBIOS mailing list [email protected] https://mail.coreboot.org/mailman/listinfo/seabios
