Execution Layer Meeting 162

[timbeiko]

Meeting Info

• May 25, 2023, 14:00-15:30 UTC
• Youtube Stream: https://youtube.com/live/jJvS6QjhPlM
• Zoom: shared on #allcoredevs Discord channel shortly before the call
• Ethereum Protocol Calls Calendar subscription

Agenda

• Cancun scope planning
  • SELFDESTRUCT removal impact analysis
    • Proposal to include SETCODE along with 6780
      • SETCODE security concerns
  • EIP-4844 updates
    • Update EIP-4844: add data_gas_used to header EIPs#7062
    • Update EIP-4844: Refactor Validity Conditions EIPs#6583
    • devnet status
    • PR-7038 - Cleanup transaction network payload references
    • PR-7020 - Specify precompile input’s z and y to be encoded as big endian
    • PR-398 - Add dataGasUsed and dataGasPrice to receipts for 4844 txs
    • SSZ -> RLP change & CFI updates
  • Cancun Opcode Allocations
  • Other EIPs
    • EIP-4788 update
    • Add EIP: Revamped CALL instructions EIPs#7069
    • MCOPY
    • PAY

[shemnon]

I would like to discuss OpCode allocations for Cancun and EOF.

https://hackmd.io/@shemnon/CancunOpcodeAllocation

In summary I propose we move all EOF only opcodes to the 0xE? opcode block, move transient storage and memory copy into 0x5? and reserve some space in 0xF?. blobhash and beacon root are unchanged in the 0x4? block.

Since Transient storage is in Cancun and memory copy is very likely in Cancun this should be decided sooner rather than later. Pay and EOF are mentioned for completeness.

[ralexstokes]

I'd like to cover the update to 4788 to move to a "stateful precompile" over an opcode-based mechanism as done in this PR: ethereum/EIPs#7065.

Moreover, there are some questions around how to organize the root data in the EIP I'd like to discuss. A summary of the concerns can be seen here in an initial implementation of this EIP: https://github.com/ethereum/go-ethereum/pull/27289/files#r1204840057

[timbeiko]

Added @shemnon @ralexstokes! Also added some updates re: SELFDESTRUCT removal / EIP-6780, and posted relevant links that were shared in the R&D discord.

[ralexstokes]

if time we shall discuss this update to 4844:

ethereum/EIPs#6583

[lightclient]

and this pls ethereum/EIPs#7062

[timbeiko]

Done @ralexstokes @lightclient!

[axic]

If there's some time left, I'd be interested to talk 2 mins about ethereum/EIPs#7069 at the very end.

[g11tech]

would also be nice to discuss the still open PRs from devnet-6 (https://notes.ethereum.org/@bbusa/dencun-devnet-6)

PR-7038 - Cleanup transaction network payload references
PR-7020 - Specify precompile input’s z and y to be encoded as big endian
PR-398 - Add dataGasUsed and dataGasPrice to receipts for 4844 txs

[timbeiko]

Closed in favor of #786