On Mon, Oct 2, 2023 at 11:57 AM Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > On Tue, Sep 19, 2023 at 09:23:37AM +0530, Anup Patel wrote: > > The Veyron-V1 CPU supports custom conditional arithmetic and > > conditional-select/move operations referred to as XVentanaCondOps > > extension. In fact, QEMU RISC-V also has support for emulating > > XVentanaCondOps extension. > > > > Let us detect XVentanaCondOps extension from ISA string available > > through DT or ACPI. > > Umm, I though Linux/riscv would never support vendor specific > extensions? > We already have few T-Head specific extensions so Linux RISC-V does allow vendor extensions. Regards, Anup