RVA23 Profile
About
The RVA23 profiles are intended to be used for 64-bit application processors that will run rich OS stacks from standard binary OS distributions and with a substantial number of third-party binary user applications that will be supported over a considerable length of time in the field. The approach is to provide a large guaranteed set of features that can safely be exploited by third-party developers to ship binaries that will provide a better experience across a large number of alternative implementations over time. It is explicitly a non-goal of RVA23 to allow more hardware implementation flexibility by supporting only a minimal set of features.
Only user-mode (RVA23U64) and supervisor-mode (RVA23S64) profiles are specified in this family.
Refer, https://github.com/riscv/riscv-profiles/blob/main/rva23-profile.adoc
Status
Profile Ext. Name | Supervisor Detection | Kernel HWPROBE | KVM ONE_REG | Kernel Version | KVM Version | Comments |
---|---|---|---|---|---|---|
RVA22U64 Mandatory | ||||||
M | ISA String | COMPLETED | COMPLETED | Linux-5.x | Linux-5.x | |
A | ISA String | COMPLETED | COMPLETED | Linux-5.x | Linux-5.x | |
F | ISA String | COMPLETED | COMPLETED | Linux-5.x | Linux-5.x | |
D | ISA String | COMPLETED | COMPLETED | Linux-5.x | Linux-5.x | |
C | ISA String | COMPLETED | COMPLETED | Linux-5.x | Linux-5.x | |
Zicsr | ISA String | NA | COMPLETED | Linux-6.6 | Implied by F | |
Zicntr | ISA String | NA | COMPLETED | Linux-6.6 | Mandatory for Linux RISC-V | |
Zihpm | ISA String | NA | COMPLETED | Linux-6.6 | Separate ioctl() available for user-space HPM access | |
Ziccif | ISA String | NA | NA | Does this need HWPROBE and KVM ONE_REG support ? | ||
Ziccrse | ISA String | NA | NA | Does this need HWPROBE and KVM ONE_REG support ? | ||
Ziccamoa | ISA String | NA | NA | Does this need HWPROBE and KVM ONE_REG support ? | ||
Zicclsm | ISA String | NA | NA | Does this need HWPROBE and KVM ONE_REG support ? | ||
Za64rs | ISA String | NA | TBD | |||
Zihintpause | ISA String | COMPLETED | COMPLETED | Linux-6.10 | Linux-6.1 | |
Zba | ISA String | COMPLETED | COMPLETED | Linux-6.5 | Linux-6.6 | |
Zbb | ISA String | COMPLETED | COMPLETED | Linux-6.3 | Linux-6.4 | |
Zbs | ISA String | COMPLETED | COMPLETED | Linux-6.5 | Linux-6.6 | |
Zic64b | ISA String | TBD | COMPLETED | Linux-6.1 | ||
Zicbom | ISA String | TBD | COMPLETED | Linux-6.1 | ||
Zicbop | ISA String | TBD | TBD | |||
Zicboz | ISA String | COMPLETED | COMPLETED | Linux-6.7 | Linux-6.4 | |
Zfhmin | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zkt | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
RVA23U64 Mandatory | ||||||
V | ISA String | COMPLETED | COMPLETED | Linux-6.5 | Linux-6.5 | |
Zvfhmin | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvbb | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvkt | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zihintntl | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zicond | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.7 | |
Zimop | ISA String | COMPLETED | COMPLETED | Linux-6.11 | Linux-6.11 | |
Zcmop | ISA String | COMPLETED | COMPLETED | Linux-6.11 | Linux-6.11 | |
Zcb | ISA String | COMPLETED | COMPLETED | Linux-6.11 | Linux-6.11 | |
Zfa | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zawrs | ISA String | COMPLETED | COMPLETED | Linux-6.11 | Linux-6.11 | |
RVA23U64 Optional (Localized) | ||||||
Zvkned | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvknhb | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvkb | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvkt | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvkn | ISA String | COMPLETED | NA | Bundle of extensions: Zvkned, Zvknhb, Zvkb and Zvkt | ||
Zvkg | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvkng | ISA String | COMPLETED | NA | Bundle of extensions: Zvkn and Zvkg | ||
Zvksed | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvksh | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvkb | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zkvs | ISA String | COMPLETED | NA | Bundle of extensions: Zvksed, Zvksh, Zvkb, and Zvkt | ||
Zvksg | ISA String | COMPLETED | NA | Bundle of extensions: Zvks and Zvkg | ||
RVA23U64 Optional (Development) | ||||||
Zacas | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.9 | |
Zvbc | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
RVA23U64 Optional (Expansion) | ||||||
Zfh | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zbc | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zvfh | ISA String | COMPLETED | COMPLETED | Linux-6.8 | Linux-6.8 | |
Zfbfmin | ISA String | TBD | TBD | |||
Zvfbfmin | ISA String | TBD | TBD | |||
Zvfbfwma | ISA String | TBD | TBD | |||
RVA22S64 Mandatory | ||||||
Svbare | DeviceTree or ACPI | NA | COMPLETED | Linux-6.6 | ||
Sv39 | DeviceTree or ACPI | COMPLETED | COMPLETED | Linux-6.11 | Linux-6.6 | HWPROBE Key HIGHEST_VIRT_ADDRESS |
Svade | ISA String | NA | TBD | |||
Ssccptr | SBI marchid/mvendorid/mimpid | NA | NA | Does this need HWPROBE and KVM ONE_REG support ? | ||
Sstvecd | ISA String | NA | TBD | |||
Sstvala | ISA String | NA | TBD | |||
Sscounterenw | ISA String | NA | TBD | |||
Svpbmt | ISA String | NA | COMPLETED | Linux-5.20 | ||
Svinval | ISA String | NA | COMPLETED | Linux-6.1 | ||
RVA23S64 Mandatory | ||||||
Zifencei | ISA String | NA | COMPLETED | Linux-6.6 | HWPROBE not required because mandatory for Linux | |
Ss1p13 | SBI marchid/mvendorid/mimpid | NA | NA | Does this need HWPROBE and KVM ONE_REG support ? | ||
Svnapot | ISA String | NA | COMPLETED | Linux-6.5 | ||
Sstc | ISA String | NA | COMPLETED | Linux-6.0 | ||
Sscofpmf | ISA String | NA | COMPLETED | Linux-6.10 | ||
Ssnpm | ISA String | NA | TBD | |||
Ssu64xl | ISA String | NA | TBD | |||
H | ISA String | NA | COMPLETED | |||
Sstateen | ISA String | NA | TBD | |||
Shcounterenw | ISA String | NA | TBD | |||
Shvstvala | ISA String | NA | TBD | |||
Shtvala | ISA String | NA | TBD | |||
Shvstvecd | ISA String | NA | TBD | |||
Shvsatpa | ISA String | NA | TBD | |||
Shgatpa | ISA String | NA | TBD | |||
RVA22S64 Optional (Expansion) | ||||||
Sv48 | DeviceTree or ACPI | COMPLETED | COMPLETED | Linux-6.11 | Linux-6.6 | HWPROBE Key HIGHEST_VIRT_ADDRESS |
Sv57 | DeviceTree or ACPI | COMPLETED | COMPLETED | Linux-6.11 | Linux-6.6 | HWPROBE Key HIGHEST_VIRT_ADDRESS |
Zkr | ISA String | TBD | COMPLETED | Linux-6.8 | ||
RVA23S64 Optional (Expansion) | ||||||
Svadu | ISA String | NA | TBD | |||
Sdext | ISA String | NA | TBD |