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Linux RISC-V vector documentation (Document/arch/riscv/vector.rst) mandates a prctl() in order to allow an userspace thread to use the Vector extension from the host. This is something to be done in realize() time, after init(), when we already decided whether we're using RVV or not. We don't have a realize() callback for KVM yet, so add kvm_cpu_realize() and enable RVV for the thread via PR_RISCV_V_SET_CONTROL. Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20231218204321.75757-4-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> |
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