On 2/21/23 08:12, Xi Ruoyao wrote:
We are preparing to submit these instruction support for binutils, however it is still necessary. Supposing that it is supported in future gcc version, we can not drop existing gcc 12/13 supporting to compiling kernel with LoongArch architecture.You can drop the support for KVM with less capable Binutils versions, like: config AS_HAS_LVZ def_bool $(as-instr some_gcsr_insn \$r0, \$gcsr0) config KVM depends on AS_HAS_LVZ
There are precedents in Linux for using .word when necessary. There's no reason to prevent using KVM on old Binutils versions.
Paolo
