[PATCH 04/11] PCI: pci-bridge-emul: Add support for new flag PCI_BRIDGE_EMUL_NO_IO_FORWARD

[Thomas Petazzoni]

On Tue, 21 Dec 2021 15:14:48 +0100
Pali Rohár <pali at kernel.org> wrote:

> Like PCI_BRIDGE_EMUL_NO_PREFMEM_FORWARD, this new flag specifies that
> emulated PCI bridge does not support forwarding of IO requests in given
> range between primary and secondary buses. This flag should be used as
> argument for pci_bridge_emul_init() for hardware setup without IO support.
> 
> Setting this flag cause that IO base and limit registers are read-only.
> 
> Signed-off-by: Pali Rohár <pali at kernel.org>

Looks good. As said on PATCH 03/11, perhaps just a snippet of
documentation in pci-bridge-emul.h to describe the semantic of the new
flag.

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com