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<unlord>
Hello
<unlord>
I booted a fedora image using qemu-system-riscv64 and did not see support for the RVV instructions
<HdkR>
I don't believe the kernel has upstream support for it currently?
<unlord>
so even if I bought an Allwinner D1 SBC I couldn't program against them?
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<HdkR>
Not sure on that one, downstream kernel could resolve that
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<courmisch>
unlord: even if you bought that, it's implemented as draft version of the spec that is subtly and not so subtly incompatible with the ratified standard
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<unlord>
courmisch: this is why I was asking if it was emulated somewhere?
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<HdkR>
qemu and spike support it I believe. Just need some kernel tree somewhere that understands it :)
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<HdkR>
(I'm also curious where a kernel tree exists to use it)
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<unlord>
HdkR: huh, I didn't think qemu supported it
<HdkR>
It's there in a relatively new version
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<unlord>
I built from git, v7.0.0
<unlord>
isa: rv64imafdcsuh
<unlord>
oh, but my kernel is 5.5.0 from 2020
<HdkR>
Yea, it exists in v7.0, just won't show up in /proc/cpuinfo if your kernel doesn't support it
<unlord>
Well, now I get to solve two problems, time to build a gentoo image and kernel
<HdkR>
But I don't even think latest upstream kernel supports it