RISC-V International
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| Extension | Spike | Qemu | Binutils | GCC | glibc | newlib | LLVM | OpenSBI | FreeBSD | Linux kernel | GDB |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Zihintpause | upstream | Mailpatch | upstream | upstream | |||||||
| Vector: Zvamo, Zvlsseg, Zvediv, Zvqmac, Zve32x, Zve32f, Zve64x, Zve64f, Zve64d, Zvfh, Zve | upstream | upstream | upstream | rvv-next branch | upstream | upstream (experimental,FP16 ABI not settled) | not supported | ||||
| Bitmanip: Zba, Zbb, Zbc, Zbs | upstream | upstream | upstream | PR | dev branch | upstream | upstream (experimental) | not used | |||
| FP in INT regs: Zfinx | PR | upstream | upstream(Zfinx, Zdinx) | MC upstream | not supported | ||||||
| Half Width FP: Zfh, Zfhmin | upstream | upstream | upstream (Zfh only) Mailpatch (Zfhmin) | upstream | not supported | ||||||
| ePMP: Smepmp | upstream | upstream(but 0.9.3) | upstream (CSR only; part of Priv 1.12 support) | PR | not supported | ||||||
| Scalar crypto: Zbkb, Zbkc, Zbkx, Zknd, Zkne, Zknh, Zksed, Zksh, Zkn, Zks, Zkt, Zk, Zkr | upstream | upstream | upstream | upstream(only minimal support and wait c-api merge) | upstream | not used | |||||
| Priv 1.12: Sm1-12, Ss1-12, Sv57 | upstream | upstream | not supported | ||||||||
| CMO base: Zicbom, Zicbop, Zicboz | upstream | Mailpatch | upstream | PR,PR | not supported | ||||||
| Hypervisor: H | upstream | upstream | upstream (except handling as 'H' extension; now a part of 'I' extension) | n/a | n/a | n/a | upstream | not supported | upstream (5.16) | ||
| State Enable: Smstateen | upstream | Mailpatch | Mailpatch | not supported | |||||||
| Time compare: Sstc | Mailpatch | Mailpatch | not supported | ||||||||
| Counter overflow and filtering: Sscofmpf | PR | Mailpatch | Mailpatch | not supported | |||||||
| Fast TLP invalidation: Svinval | upstream | upstream | upstream | not supported | |||||||
| NAPOT pages: Svnapot | upstream | upstream | not supported | ||||||||
| Page-based memory types: Svpbmt | upstream | upstream | not supported | ||||||||
| Code Size Reduction: Zcee | dev branch | dev branch | dev branch | dev branch | dev branch | not supported | |||||
| Packed SIMD: Zpn, Zpsfoperand, Zprvsfextra | upstream( v0.9.2) | Mailpatch | PR | PR | not supported | ||||||
| Resumable Non-maskable Interrupts: Smrnmi | not supported | ||||||||||
| Core-local Interrupt Controller: CLINT | upstream | upstream | upstream | upstream (clocksource) | |||||||
| Advanced Core-local Interrupt Controller: ACLINT | upstream | not supported | Patchwork | ||||||||
| Zmmul | upstream | Mailpatchupstream | Mailpatch | Mailpatch | patch | n/a | |||||
| Pointer masking: Zjpm | not supported |
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