Re: PCI arbiter memory mapping

[Joan Lledó]

Hi,

El 20/6/21 a les 3:25, Damien Zammit ha escrit:
> Hi Joan,
>
> On 19/6/21 7:50 pm, Joan Lledó wrote:

> How does that interact with existing pci access for example, I think the AHCI 
> rump driver
> works with DMA so do we need to also adjust the pci-userspace part of 
> rumpkernel?

I couldn't say, I know very little of that, TBH. but I'd say if it was 
working before you shouldn't need to adjust anything, b/c my changes in 
the arbiter added new functionality, not breaking changes on components 
already working. At the end of the day what is did is only allowing 
region files to be mapped with mmap() and vm_map().

Anyway, I cleaned up the branches, you can test it yourself:

https://gitlab.freedesktop.org/jlledom/libpciaccess/-/tree/hurd-device-map

http://git.savannah.gnu.org/cgit/hurd/gnumach.git/log/?h=jlledom-memory-object-proxy

http://git.savannah.gnu.org/cgit/hurd/hurd.git/log/?h=jlledom-pci-memory-map