Hello Rostyslav, you sent an email addressed to me, but you forgot to put my email address into recipients. So I have not received it. But luckily, today I found your email by a chance in lkml archive: https://lore.kernel.org/lkml/CAJDH93uE+foFfRAXVJ48-PYvEUsbpEu_-BVoG-5HsDG66yY7AQ@xxxxxxxxxxxxxx/ On Monday 03 March 2025 10:21:25 Rostyslav Khudolii wrote: > Hi, > > > Rostyslav, I would like to ask you, do you have patches / updates for > > enabling the EnableCf8ExtCfg bit for AMD 17h+ family? I could try to > > adjust my lspci changes for new machines. > > Pali, sorry for the late reply. Do I understand correctly, that even > though you have access to the ECS via > the MMCFG you still want the legacy (direct IO) to work for the > debugging purposes? I can prepare a > simple patch that will allow you to do so if that's the case. Yes, I would like to get access to ECS via CF8/CFC direct IO for debugging purposes, even though MMCFG is enabled and used. If you can send me a simple patch or any sample / idea how to do it, I would be very happy. I was not able to figure out how to enable ECS over CF8/CFC. Pali
