在 2026/10/20 8:39, Jonathan Cameron 写道: > On Mon, 19 Oct 2026 13:28:03 +0100 > Peter Maydell <[email protected]> wrote: > >> On Mon, 19 Oct 2026 at 13:19, Jinjie Ruan <[email protected]> wrote: >>> >>> >>> >>> 在 2026/10/19 20:01, Peter Maydell 写道: >>>> On Mon, 19 Oct 2026 at 12:46, Jinjie Ruan <[email protected]> wrote: >>>>> One honest caveat >>>> >>>> Please don't send LLM output to qemu-devel. >>> >>> Sorry. Here is my understanding: >>> >>> As mpam_csu_value() and mpam_mbwu_value() below done, the monitor code >>> scales the base value based on the software-configured PBM >>> (Partition-Based Monitoring) or MB MAX values, rather than just >>> returning zeroes. >> >> Thanks. So we report "you're using the full amount the system >> is configured to let you use". That seems reasonable. >> >>> And most of the code are to expose the many MPAM registers, constructing >>> the ACPI tables, and building the hardware topology of the memory >>> controllers and caches to correctly expose the MSC (Memory System >>> Controller) components. >> >> OK, that makes sense too -- I guess there's just a lot of pieces >> of hardware in there. >> >> thanks >> -- PMM >> > Hi Peter, ruanjinjie, Hi Jonathan, > > FWIW the much more minimal emulation that I posted years ago and > which I few crumbs of in here came up at plumbers this year with With your foundational patch, it is very convenient to extend other functionality. > an engineer from yet another company asking if I could look at > rebasing and upstreaming because they also found it very useful. Glad to hear that someone else is also interested in QEMU emulation of MPAM. > I was trying to work out if I could fit that into my todo list > or whether to ask a colleague to do it. > > As such I'm very pleased to see this surface a few days later! > Even what I had was very useful for testing so I'm with this Feel the same way when developing new features or adapting test cases. > much extended feature set I'm not surprised to hear even more > issues have shaken out. > > It might take me a little while to get time to look at this series > but I definitely plan on doing so! Look forward to your review and suggestions. > > Jonathan > > p.s. On off chance that (carefully unnamed) engineer sees this I > had no idea ruanjinjie was working on this. > > Must have been something in the air :) -- Best regards, Jinjie
