Hello, We are waiting for a review of this patch. The maintainer is Sun Yuechi.
23/03/2026 05:17, dangshiwei: > The existing RISC-V rte_cpuflags implementation only detects > single-letter ISA extensions (A, C, D, F, M, V, etc.) via > AT_HWCAP. Z sub-extensions such as Zba, Zbb, Zbc, Zawrs and > cryptography extensions (Zksed, Zksh, Zknd, Zkne) are not > visible through AT_HWCAP and therefore cannot be used for > runtime dispatch. > > Linux 6.4 introduced the riscv_hwprobe syscall (NR 258) which > exposes Z sub-extensions via the RISCV_HWPROBE_KEY_IMA_EXT_0 > key as a 64-bit bitmask. This patch adds support for querying > Z sub-extensions through this interface. > > Changes: > - Add REG_HWPROBE_EXT0 source to cpu_register_t > - Fix hwcap_registers_t type from uint32_t to uint64_t to > avoid truncation of AT_HWCAP on 64-bit platforms > - Call riscv_hwprobe at EAL init via RTE_INIT and cache the > result; falls back silently on kernels older than 6.4 > - Add 56 new enum values for Z sub-extensions in rte_cpuflags.h > - Extend cpuflags_autotest to cover all new flags > > Signed-off-by: dangshiwei <[email protected]> Please could you separate you first and family names? Thank you
