Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [External] Re: [RFC 00/12] riscv: Introduce Pseudo NMI | Date | Fri, 27 Oct 2023 09:55:19 +0200 |
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On Thu, Oct 26 2023 at 21:56, Xu Lu wrote: > On Thu, Oct 26, 2023 at 7:02 AM Atish Patra <atishp@atishpatra.org> wrote: > First, please allow me to explain that CSR_IE Pseudo NMI actually can support > more than PMU profiling. For example, if we choose to make external major > interrupt as NMI and use ithreshold or eithreshold in AIA to control which minor > external interrupts can be sent to CPU, then we actually can support multiple > minor interrupts as NMI while keeping the other minor interrupts still > normal irqs.
What is the use case for these NMIs? Anything else than profiling is not really possible in NMI context at all.
Thanks,
tglx
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