Andy Chiu 1fd96a3e9d riscv: Add prctl controls for userspace vector management ... This patch add two riscv-specific prctls, to allow usespace control the use of vector unit: * PR_RISCV_V_SET_CONTROL: control the permission to use Vector at next, or all following execve for a thread. Turning off a thread's Vector live is not possible since libraries may have registered ifunc that may execute Vector instructions. * PR_RISCV_V_GET_CONTROL: get the same permission setting for the current thread, and the setting for following execve(s). Signed-off-by: Andy Chiu <andy.chiu@sifive.com> Reviewed-by: Greentime Hu <greentime.hu@sifive.com> Reviewed-by: Vincent Chen <vincent.chen@sifive.com> Link: https://lore.kernel.org/r/20230605110724.21391-22-andy.chiu@sifive.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2023-06-08 07:16:53 -07:00
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asm	riscv: Add prctl controls for userspace vector management	2023-06-08 07:16:53 -07:00
uapi/asm	riscv: KVM: Add vector lazy save/restore support	2023-06-08 07:16:51 -07:00