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Extension	Spike	Qemu	Binutils	GCC	glibc	newlib	LLVM	OpenSBI	FreeBSD	Linux kernel
Vector: Zvamo, Zvlsseg, Zvediv, Zvqmac, Zve32x, Zve32f, Zve64x, Zve64f, Zve64d, Zvfh, Zve	n	upstream	upstream (but v0.7.1)					upstream (experimental,FP16 ABI not settled)	not supported
Bitmanip: Zba, Zbb, Zbc, Zbs	n		Mailpatch (Zba, Zbb, Zbs, Zbp)	PR	dev branch			upstream (experimental)	not used
FP in INT regs: Zfinx	staging branch	staging branch	staging branch	staging-branch			PR		not supported
Half Width FP: Zfh, Zfhmin							upstream		not supported
ePMP: Smepmp									not supported
Scalar crypto: Zbkb, Zbkc, Zbkx, Zknd, Zkne, Zknh, Zksed, Zksh, Zkn, Zks, Zkt, Zk, Zkr			PR	PR			MC layer PR LLVM Intrinsic PR		not used
Priv 1.12: Sm1-12, Ss1-12, Sv57									not supported
CMO base: Zicbom, Zicbop, Zicboz									not supported
Hypervisor: H	upstream	upstream	dev branch	n/a	n/a	n/a		upstream	not supportedKVM patches on LKML	upstream (5.16)
State Enable: Smstateen									not supported
Time compare: Sstc									not supported
Counter overflow and filtering: Sscofmpf									not supported
Fast TLP invalidation: Svinval									not supported
NAPOT pages: Svnapot									not supported
Page-based memory types: Svpbmt									not supported
Code Size Reduction: Zcee									not supported
Packed SIMD: Zpn, Zpsfoperand, Zprvsfextra									not supported
Resumable Non-maskable Interrupts: Smrnmi									not supported
Core-local Interrupt Controller: CLINT									upstream
Advanced Core-local Interrupt Controller: ACLINT									not supported
Zmmul									n/a
Pointer masking: Zjpm									not supported

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