On 27.08.24 14:44, Krzysztof Kozlowski wrote: > On 27/08/2024 11:22, Jan Kiszka wrote: >> On 27.08.24 08:35, Krzysztof Kozlowski wrote: >>> On 26/08/2024 21:25, Jan Kiszka wrote: >>>> On 26.08.24 20:53, Krzysztof Kozlowski wrote: >>>>> On 26/08/2024 19:56, Jan Kiszka wrote: >>>>>> Only few of the K3 SoCs have an IOMMU and, thus, can isolate the system >>>>>> against DMA-based attacks of external PCI devices. The AM65 is without >>>>>> an IOMMU, but it comes with something close to it: the Peripheral >>>>>> Virtualization Unit (PVU). >>>>>> >>>>>> The PVU was originally designed to establish static compartments via a >>>>>> hypervisor, isolate those DMA-wise against each other and the host and >>>>>> even allow remapping of guest-physical addresses. But it only provides >>>>>> a static translation region, not page-granular mappings. Thus, it cannot >>>>>> be handled transparently like an IOMMU. >>>>> >>>>> You keep developing on some old kernel. I noticed it on few patchsets >>>>> last days. Please work on mainline. >>>>> >>>> >>>> How did you come to this conclusion? This patch set was written for >>>> mainline, just rebased and tested again over next-20240826 before >>>> sending today. >>> >>> You send it to addresses you CANNOT get from mainline kernel. There is >>> no way mainline kernel get_maintainers.pl produces them. >>> >> >> That is likely due to that I didn't re-run the get_maintainers.pl for >> all areas of changes but rather reused an address list from a slightly >> older posting, sorry. >> >> IOW, your assumption is still not correct when it comes to code. > > Sure, I see results and I am guessing the reason. Keeping the list > static is not the approach you should be using, as seen here. It does > not make even sense, because then you need to keep several lists per > different subsystems or you CC unrelated people (don't). Just use simple > wrapper over git send email, b4 or patman. > > https://github.com/krzk/tools/blob/master/linux/.bash_aliases_linux#L91 > ha Those options are useful, unconditional automated usage of the script is not when you might be targeting multiple subsystems in a series (not that uncommon in our scenarios). That's why shaping/confirming the final list remains a manual step for me. But I'll improve on keeping it updated. Thanks, Jan -- Siemens AG, Technology Linux Expert Center
