RVA23 Profile
- Anup Patel
- Clément Léger
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 |
|
|
|