On Thu, Dec 12, 2024 at 11:51:54AM +0800, Yuquan Wang wrote: > On Wed, Dec 11, 2024 at 03:40:03PM +0000, Alejandro Lucero Palau wrote: > > > > On 12/10/24 10:36, Yuquan Wang wrote: > > > v3 -> v4: > > > - Align base addresses of CXL relevant Windows > > > > > > v2 -> v3: > > > - PCDs values of pio, mmio32, mmio64 & ecam space for the independent cxl > > > host > > > - CXL Bus range: 0x00 ~ 0xff > > > - Mcfg ecam structure for cxl > > > - Iort RC node for cxl > > > > > > RFC because > > > - Many contents are ported from Jonathan' patch on qemu virt design > > > > > > - Bring plenty of PCDs values > > > > > > - Less experience and not particularly confident in ACPI area > > > > > > This series leverages Jonathan's patches[1] to add acpi0016 & acpi0017 > > > objects into the > > > previous DSDT table of sbsa-ref. Since my latest acpi0016 implementation > > > model on qemu > > > side is a new host bridge qemu object rather than pxb-cxl, the cxl > > > host(Segment 0001) > > > would have its own ECAM sapce. Meanwhile, this adds exclusive pio, mmio32 > > > & mmio64 space > > > for cxl host. > > > > > > Hi Yuquan, > > > > > > Is there a roadmap for edk2 supporting other CXL features? > > > Hi, Alejandro > > Emmm. I have not find such edk2 roadmap (docs/webs/blog) yet. According to > what I've learnd, the edk2 upstream only support some head files which > define cxl registers structs and no cxl drivers have merged into upstream > now, and mostly system software's work haved been done in linux kernel. > > Regard to cxl patches in edk2, there is a series of patches in reviewing to > support enabling cxl-type3 device as memory expander on Arm/RD platform[1]. > > Link: > [1]: https://edk2.groups.io/g/devel/message/109488 > > > > I have noticed UEFI extensions are not supported yet, specifically > > EFI_ADAPTER_INFO_CDAT_TYPE_GUID as an instance of > > EFI_ADAPTER_INFORMATION_PROTOCOL. > > > > > > Any feedback would be welcome. > > > > > > Thanks > > > > > Hi, Jonathan & Ben
Recently I am trying to test EINJ for cxl error on sbsa-ref based on Ben Cheatham's patches, but there seems no sample for cxl EINJ table in edk2. Hence, I manage to write the EINJ table by what I have learnd in ACPI SPEC, but I am struggling with which error injection actions need me to build. Do you know some limitations on this mechanism in QEMU or any suggestions? Many thanks Yuquan -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#120909): https://edk2.groups.io/g/devel/message/120909 Mute This Topic: https://groups.io/mt/110023229/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
