KV260 で RPU(Cortex-R5) を使えるように /sys/class/remoteproc/ を弄る機能をオレオレサーバーに追加した。 github.com/ryuz/jelly-fpga-s… これで root 権限なしで簡単にインチキ実験できる範囲が増えた。 例によってセキュリティーの事は考えていない (^^;

Dive into the world of inter-processor communication with #RemoteProc! Learn how to manage and communicate between different cores seamlessly with our article! bit.ly/3KSpNHd #SoC #SoM #ProcessorCores #rproc #MulticoreProcessing #HMP #CortexM

Update on the #KR260 progress: Spent days trying to solve the IRQ issues, interrupts aren't working in my overlays (neither APU or RPU), only after passing them through PYNQ-DPU. BUT PYNQ only works in ubuntu while I can't get RemoteProc working outside petalinux... 🫣 #AMD #DIY

CVE-2024-36965 In the Linux kernel, the following vulnerability has been resolved: remoteproc: mediatek: Make sure IPI buffer fits in L2TCM The IPI buffer location is read from the firmware that we load to the System Companion Processor, and it's not granted that both the SRAM (L2TCM) size that is defined in the devicetree node is large enough for that, and while this is especially true for multi-core SCP, it's still useful to check on single-core variants as well. Failing to perform this check may make this driver perform R/W operations out of the L2TCM boundary, resulting (at best) in a kernel panic. To fix that, check that the IPI buffer fits, otherwise return a failure and refuse to boot the relevant SCP core (or the SCP at all, if this is single core). More: git.kernel.org/pub/scm/linux… #infosec #cve #100xSecurity

Avaota Router A1 OpenSource Router Kit - Octa Core Cortex-A55 Chip: A523 - 2 x 2.5G LAN - 1 x 1G WAN - up to 4G RAM - up to 256G eMMC - DisplayPort 2.5K - OLED driver by remoteproc - OpenSource Hardward CERN-OHL-S GeekBench6 result test on EVB board (for reference)

#kernel drivers/remoteproc/xlnx_r5_remoteproc.c:209:20: sparse: sparse: cast removes address space '__iomem' of expression spinics.net/lists/kernel/msg…

#kernel Starting app on i.MX8MM M4 core from DDR via remoteproc spinics.net/lists/kernel/msg…

Running mnist in V851s E907 RISCV Core with remoteproc

Was remoteproc really made for Qualcomm? I remember reviewing the original series back at ST, and don't remember it being QCOM specific, but I guess I'd have to check

Why not just port Linux to run in SMM? Then use remoteproc to communicate in whatever way you like to it. WebDAV maybe? AMP 2.0 😜

#arm #linux #msm [PATCH 3/9] dt-bindings: remoteproc: qcom: Add Q6V5 Modem PIL binding spinics.net/lists/linux-arm-…

#arm #linux #msm [PATCH] dt-bindings: remoteproc: qcom: pas: Convert binding to YAML spinics.net/lists/linux-arm-…

Interesting things computers can do today, merged for #Linux #kernel 5.13: "This adds support to the remoteproc core for detaching Linux from a running remoteproc, e.g. to reboot Linux while leaving the remoteproc running […]" git.kernel.org/torvalds/c/87… lore.kernel.org/linux-arm-ke…

#embeddedtips When using a #multicore #microcontroller, use #OpenAMP for inter-processor communications! This provides you with: - A virtual device framework (Virtio) - A messaging system (Rpmsg) - Life cycle management (Remoteproc) #Arm #embedsys #programming #mcus

#kernel Re: [PATCH v2 0/5] Introduce PRU remoteproc consumer API spinics.net/lists/kernel/msg…

#arm #linux #msm Re: [PATCH v3 2/4] remoteproc: sysmon: Expose the shutdown result spinics.net/lists/linux-arm-…

#arm #linux #msm [v7 3/4] remoteproc: qcom: wcss: Add non pas wcss Q6 support for QCS404 spinics.net/lists/linux-arm-…

とはいえここからどうすればいいのかわからず迷走中。 /sys/class/remoteproc/remoteproc0/state に start 書き込もうとしても write errorになる模様。 state みると offline のままですね。

remoteproc trace is working in rust on the stm32mp1 M4! Thanks to @therealjpster @maximeborges !

#arm #linux #msm Re: [PATCH v4 2/4] remoteproc: Introduce "panic" callback in ops spinics.net/lists/linux-arm-…