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Merged
eigmax merged 1 commit into from
May 19, 2026
Merged

feat(go-runtime): add proof verification syscalls #513

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17 changes: 16 additions & 1 deletion crates/go-runtime/zkvm_runtime/runtime.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,10 +15,12 @@ func SyscallWrite(fd int, write_buf []byte, nbytes int) int
func SyscallHintLen() int
func SyscallHintRead(ptr []byte, len int)
func SyscallCommit(index int, word uint32)
func SyscallCommitDeferredProofs(index int, word uint32)
func SyscallExit(code int)
func SyscallEnterUnconstrained() int
func SyscallExitUnconstrained()
func SyscallKeccakSponge(input unsafe.Pointer, result unsafe.Pointer)
func SyscallVerifyZKMProof(vkDigest unsafe.Pointer, pvDigest unsafe.Pointer)

// secp256k1 precompiles
func SyscallSecp256k1Add(p unsafe.Pointer, q unsafe.Pointer)
Expand Down Expand Up @@ -81,7 +83,7 @@ func HintSlice(data []byte) {
func ReadHintVec() []byte {
// Read length prefix (4 bytes LE)
lenLen := SyscallHintLen()
lenBuf := make([]byte, ((lenLen + 3) / 4) * 4)
lenBuf := make([]byte, ((lenLen+3)/4)*4)
SyscallHintRead(lenBuf, lenLen)
dataLen := int(lenBuf[0]) | int(lenBuf[1])<<8 | int(lenBuf[2])<<16 | int(lenBuf[3])<<24

Expand All @@ -94,6 +96,7 @@ func ReadHintVec() []byte {
}

var PublicValuesHasher hash.Hash = sha256.New()
var DeferredProofsDigest [8]uint32

const EMBEDDED_RESERVED_INPUT_REGION_SIZE int = 1024 * 1024 * 1024
const MAX_MEMORY int = 0x7f000000
Expand Down Expand Up @@ -127,6 +130,17 @@ func Commit[T any](value T) {
SyscallWrite(13, bytes, length)
}

func VerifyZKMProof(vkDigest *[8]uint32, pvDigest *[32]byte) {
SyscallVerifyZKMProof(unsafe.Pointer(vkDigest), unsafe.Pointer(pvDigest))
}

func CommitDeferredProofsDigest(digest [8]uint32) {
DeferredProofsDigest = digest
for i, word := range digest {
SyscallCommitDeferredProofs(i, word)
}
}

//go:linkname RuntimeExit zkvm.RuntimeExit
func RuntimeExit(code int) {
hashBytes := PublicValuesHasher.Sum(nil)
Expand All @@ -136,6 +150,7 @@ func RuntimeExit(code int) {
word := binary.LittleEndian.Uint32(hashBytes[i*4 : (i+1)*4])
SyscallCommit(i, word)
}
CommitDeferredProofsDigest(DeferredProofsDigest)

SyscallExit(code)
}
Expand Down
14 changes: 14 additions & 0 deletions crates/go-runtime/zkvm_runtime/syscall_mipsle.s
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,13 @@ TEXT ·SyscallCommit(SB), $0-8
SYSCALL
RET

TEXT ·SyscallCommitDeferredProofs(SB), $0-8
MOVW index+0(FP), R4
MOVW word+4(FP), R5
MOVW $0x1A, R2
SYSCALL
RET

TEXT ·SyscallExit(SB), $0-4
MOVW code+0(FP), R4 // a0 = code
MOVW $0, R2 // v0 = syscall 0
Expand All @@ -62,6 +69,13 @@ TEXT ·SyscallKeccakSponge(SB), $0-8
SYSCALL
RET

TEXT ·SyscallVerifyZKMProof(SB), $0-8
MOVW $0x1B, R2
MOVW vkDigest+0(FP), R4
MOVW pvDigest+4(FP), R5
SYSCALL
RET

// secp256k1 elliptic curve precompiles

TEXT ·SyscallSecp256k1Add(SB), $0-8
Expand Down