Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-11-16 Thread Yoshinoya
ect: [edk2-devel] question about cxl device enumeration in pci bus driver Hi, I have a question about cxl memory device hot-plug. For example: 1. When cold boot, the platform has only 512GB cxl type-3 memory 2. During OS runtime, user hot-plug another cxl type-3 memory device expanding to 1TB.

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-11-07 Thread Brian J. Johnson
:* jonathan.came...@huawei.com, Laszlo Ersek , kra...@redhat.com, Ni, Ray , Sayanta Pattanayak *Subject:* [edk2-devel] question about cxl device enumeration in pci bus driver Hi, I have a question about cxl memory device hot-plug. For example: 1. When cold boot, the platform has only 512GB cxl type-3

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-11-06 Thread Yoshinoya
Hi, I have a question about cxl memory device hot-plug. For example: 1. When cold boot, the platform has only 512GB cxl type-3 memory 2. During OS runtime, user hot-plug another cxl type-3 memory device expanding to 1TB. So, how did OS identify another 512GB space newly added without a reboot

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-26 Thread Ni, Ray
; Sayanta Pattanayak Subject: Re:Re: [edk2-devel] question about cxl device enumeration in pci bus driver Hi, Thanks for reply! I download code from this git https://github.com/SayantaP-arm/edk2-platforms/ For this ARM edk2 sample package, it provided cxldxe driver which being executed after UEFI

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-26 Thread Yoshinoya
Hi, Thanks for reply! I download code from this git https://github.com/SayantaP-arm/edk2-platforms/ For this ARM edk2 sample package, it provided cxldxe driver which being executed after UEFI DXE PciBus enumeration finishes. This ppt (https://lpc.events/event/16/contributions/1254/) describ

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-26 Thread Yoshinoya
Hi, Thanks for reply! I download code from this git https://github.com/SayantaP-arm/edk2-platforms/ For this ARM edk2 sample package, it provided cxldxe driver which being executed after UEFI DXE PciBus enumeration finishes. This ppt (https://lpc.events/event/16/contributions/1254/) describes

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-26 Thread Jonathan Cameron via groups.io
On Thu, 26 Oct 2023 11:49:28 +0200 "Laszlo Ersek" wrote: > On 10/26/23 10:33, Gerd Hoffmann wrote: > > On Thu, Oct 26, 2023 at 10:36:35AM +0800, Yoshinoya wrote: > > > >> CXL Host Bridge / Root Port / Switch / Device enumeration / HDM Config, > >> maybe could be integrated into pci drivers st

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-26 Thread Laszlo Ersek
On 10/26/23 10:33, Gerd Hoffmann wrote: > On Thu, Oct 26, 2023 at 10:36:35AM +0800, Yoshinoya wrote: > >> CXL Host Bridge / Root Port / Switch / Device enumeration / HDM Config, >> maybe could be integrated into pci drivers stack. > > Point being? Can or should the firmware do anything useful w

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-26 Thread Gerd Hoffmann
On Thu, Oct 26, 2023 at 10:36:35AM +0800, Yoshinoya wrote: > CXL Host Bridge / Root Port / Switch / Device enumeration / HDM Config, maybe > could be integrated into pci drivers stack. Point being? Can or should the firmware do anything useful with the CXL hardware? If so, what exactly and why

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-25 Thread Yoshinoya
today's pci bus driver. But I might be wrong. Can you list any missing logic in pci bus driver? Thanks, Ray From: devel@edk2.groups.io on behalf of Yoshinoya Sent: Wednesday, October 25, 2023 2:01 PM To: devel@edk2.groups.io Subject: [edk2-devel] question about cxl device enumeration in pci

Re: [edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-25 Thread Ni, Ray
2023 2:01 PM To: devel@edk2.groups.io Subject: [edk2-devel] question about cxl device enumeration in pci bus driver Hi, CXL devices are more polular. Is there any plan to add cxl device enumeration in pci bus driver? Thanks -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages se

[edk2-devel] question about cxl device enumeration in pci bus driver

2023-10-24 Thread Yoshinoya
Hi, CXL devices are more polular. Is there any plan to add cxl device enumeration in pci bus driver? Thanks -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#110016): https://edk2.groups.io/g/devel/message/110016 Mute This Topic: https://gr