Messages in this thread | | | Date | Sat, 24 Jun 2023 01:12:26 +0100 | From | Conor Dooley <> | Subject | Re: [PATCH] RISC-V: Show accurate per-hart isa in /proc/cpuinfo |
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Hey Evan,
On Fri, Jun 23, 2023 at 03:23:53PM -0700, Evan Green wrote: > In /proc/cpuinfo, most of the information we show for each processor is > specific to that hart: marchid, mvendorid, mimpid, processor, hart, > compatible, and the mmu size. But the ISA string gets filtered through a > lowest common denominator mask, so that if one CPU is missing an ISA > extension, no CPUs will show it. > > Now that we track the ISA extensions for each hart, let's report ISA > extension info accurately per-hart in /proc/cpuinfo.
No, you can't do this as it breaks the assumptions of userspace that this shows the set supported across all harts. Sorry, but NAK.
Cheers, Conor. [unhandled content-type:application/pgp-signature] | |