On 2/12/19 12:31 AM, Laurent Vivier wrote: > I know nothing about ARM, but in kernel we have also a "v5t" > (cpu_elf_name) and in QEMU we have a ARM_FEATURE_V4T which is set with > ARM_FEATURE_V5. Is it related?
>From the ARM ARM (DDI 0406C, page A1-30): The valid variants of ARMv4, ARMv5, and ARMv6 are as follows: ARMv4, ARMv4T, ARMv5T, ARMv5TE, ARMv5TEJ, ARMv6, ARMv6K, ARMv6T2 So all v5 are "t". The use of "v5t" within the kernel seems to be an outlier and perhaps a bug to be squashed: $ grep -r cpu_elf_name . | grep v5 ./mm/proc-xsc3.S: string cpu_elf_name, "v5" ./mm/proc-arm1020.S: string cpu_elf_name, "v5" ./mm/proc-arm946.S: string cpu_elf_name, "v5t" ./mm/proc-arm1020e.S: string cpu_elf_name, "v5" ./mm/proc-arm1022.S: string cpu_elf_name, "v5" ./mm/proc-feroceon.S: string cpu_elf_name, "v5" ./mm/proc-xscale.S: string cpu_elf_name, "v5" ./mm/proc-mohawk.S: string cpu_elf_name, "v5" ./mm/proc-arm926.S: string cpu_elf_name, "v5" ./mm/proc-arm1026.S: string cpu_elf_name, "v5" r~
