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+RISCV: wrong check for vector extension ELEN value.
+Description of problem:
+When checking if the vector extension ELEN value is in the range [8, 64], the lower bound check uses the `vlen` field instead of the `elen` one: https://gitlab.com/qemu-project/qemu/-/blob/master/target/riscv/cpu.c#L885.
+Additional information:
+This is basically just a typo I found while reading the code, I do not have a real case scenario which resulted in this check to fail.