pallet-xvm refactor (#980)

* pallet-xvm refactor.

* Add TODOs.

* Update design.

* Keep XVM call interface unified.

* Renaming.

* update & integration.

* Update xvm precompiles mock & tests.

* Replace 'UnknownError' with concrete errors.

* Update CE & precompile.

* Clean up.

* Benchmarks and mock.

* Updates for polkadot-v0.9.43.

* Fix benchmarks.

* Add benchmarking result and weight info.

* Add license header to weight.rs.

* Add pallet description docstring.

* Record gas cost in XVM precompile.

* Less weight is available with overheads cost.

* Trace Ethereum transact result.

* Handle record cost result.

* Bump Shibuya semver and spec versoin.

* Apply review suggestions.

* Update with new benchmarking result.

* Improve XVM call benchmarking.

* Make local/shibuya/shiden/astar runtimes and client have the same semver.

* Update with new benchmarking result.

Cargo.toml

@@ -273,7 +273,7 @@ pallet-collator-selection = { path = "./pallets/collator-selection", default-fea
 pallet-custom-signatures = { path = "./pallets/custom-signatures", default-features = false }
 pallet-dapps-staking = { path = "./pallets/dapps-staking", default-features = false }
 pallet-xc-asset-config = { path = "./pallets/xc-asset-config", default-features = false }
-pallet-xvm = { path = "./pallets/pallet-xvm", default-features = false }
+pallet-xvm = { path = "./pallets/xvm", default-features = false }
 pallet-xcm = { path = "./pallets/pallet-xcm", default-features = false }
 pallet-ethereum-checked = { path = "./pallets/ethereum-checked", default-features = false }
 

bin/collator/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "astar-collator"
-version = "5.15.0"
+version = "5.16.0"
 description = "Astar collator implementation in Rust."
 build = "build.rs"
 default-run = "astar-collator"

chain-extensions/types/xvm/Cargo.toml

@@ -9,6 +9,7 @@ homepage.workspace = true
 repository.workspace = true
 
 [dependencies]
+astar-primitives = { workspace = true }
 parity-scale-codec = { workspace = true }
 scale-info = { workspace = true }
 sp-runtime = { workspace = true }
@@ -21,4 +22,5 @@ std = [
 	"scale-info/std",
 	"sp-runtime/std",
 	"sp-std/std",
+	"astar-primitives/std",
 ]

chain-extensions/types/xvm/src/lib.rs

@@ -18,31 +18,42 @@
 
 #![cfg_attr(not(feature = "std"), no_std)]
 
+use astar_primitives::xvm::CallError;
 use parity_scale_codec::{Decode, Encode};
-use sp_runtime::{DispatchError, ModuleError};
 use sp_std::vec::Vec;
 
 #[cfg_attr(feature = "std", derive(scale_info::TypeInfo))]
 #[derive(PartialEq, Eq, Copy, Clone, Encode, Decode, Debug)]
 pub enum XvmExecutionResult {
     /// Success
-    Success = 0,
-    // TODO: expand this with concrete XVM errors
-    /// Error not (yet) covered by a dedidacted code
-    UnknownError = 255,
+    Ok,
+    /// Failure
+    Err(u32),
 }
 
-impl TryFrom<DispatchError> for XvmExecutionResult {
-    type Error = DispatchError;
+impl From<CallError> for XvmExecutionResult {
+    fn from(input: CallError) -> Self {
+        use CallError::*;
 
-    fn try_from(input: DispatchError) -> Result<Self, Self::Error> {
-        let _error_text = match input {
-            DispatchError::Module(ModuleError { message, .. }) => message,
-            _ => Some("No module error Info"),
+        // `0` is reserved for `Ok`
+        let error_code = match input {
+            InvalidVmId => 1,
+            SameVmCallNotAllowed => 2,
+            InvalidTarget => 3,
+            InputTooLarge => 4,
+            BadOrigin => 5,
+            ExecutionFailed(_) => 6,
         };
+        Self::Err(error_code)
+    }
+}
 
-        // TODO: expand this with concrete XVM errors (see dapps-staking types for example)
-        Ok(XvmExecutionResult::UnknownError)
+impl From<XvmExecutionResult> for u32 {
+    fn from(input: XvmExecutionResult) -> Self {
+        match input {
+            XvmExecutionResult::Ok => 0,
+            XvmExecutionResult::Err(code) => code,
+        }
     }
 }
 
@@ -55,6 +66,3 @@ pub struct XvmCallArgs {
     /// Encoded call params
     pub input: Vec<u8>,
 }
-
-pub const FRONTIER_VM_ID: u8 = 0x0F;
-pub const PARITY_WASM_VM_ID: u8 = 0x1F;

chain-extensions/xvm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pallet-chain-extension-xvm"
-version = "0.1.0"
+version = "0.1.1"
 license = "Apache-2.0"
 description = "Chain extension for XVM"
 authors.workspace = true
@@ -22,7 +22,7 @@ sp-runtime = { workspace = true }
 sp-std = { workspace = true }
 
 # Astar
-pallet-xvm = { workspace = true }
+astar-primitives = { workspace = true }
 xvm-chain-extension-types = { workspace = true }
 
 [features]
@@ -39,5 +39,5 @@ std = [
 	"sp-core/std",
 	"sp-runtime/std",
 	# Astar
-	"pallet-xvm/std",
+	"astar-primitives/std",
 ]

chain-extensions/xvm/src/lib.rs

@@ -18,18 +18,18 @@
 
 #![cfg_attr(not(feature = "std"), no_std)]
 
+use astar_primitives::xvm::{CallError, Context, VmId, XvmCall};
 use frame_support::dispatch::Encode;
 use pallet_contracts::{
     chain_extension::{ChainExtension, Environment, Ext, InitState, RetVal},
     Origin,
 };
-use pallet_xvm::XvmContext;
 use sp_runtime::DispatchError;
 use sp_std::marker::PhantomData;
 use xvm_chain_extension_types::{XvmCallArgs, XvmExecutionResult};
 
 enum XvmFuncId {
-    XvmCall,
+    Call,
     // TODO: expand with other calls too
 }
 
@@ -38,7 +38,7 @@ impl TryFrom<u16> for XvmFuncId {
 
     fn try_from(value: u16) -> Result<Self, Self::Error> {
         match value {
-            1 => Ok(XvmFuncId::XvmCall),
+            1 => Ok(XvmFuncId::Call),
             _ => Err(DispatchError::Other(
                 "Unsupported func id in Xvm chain extension",
             )),
@@ -47,17 +47,18 @@ impl TryFrom<u16> for XvmFuncId {
 }
 
 /// XVM chain extension.
-pub struct XvmExtension<T>(PhantomData<T>);
+pub struct XvmExtension<T, XC>(PhantomData<(T, XC)>);
 
-impl<T> Default for XvmExtension<T> {
+impl<T, XC> Default for XvmExtension<T, XC> {
     fn default() -> Self {
         XvmExtension(PhantomData)
     }
 }
 
-impl<T> ChainExtension<T> for XvmExtension<T>
+impl<T, XC> ChainExtension<T> for XvmExtension<T, XC>
 where
-    T: pallet_contracts::Config + pallet_xvm::Config,
+    T: pallet_contracts::Config,
+    XC: XvmCall<T::AccountId>,
 {
     fn call<E: Ext>(&mut self, env: Environment<E, InitState>) -> Result<RetVal, DispatchError>
     where
@@ -67,13 +68,13 @@ where
         let mut env = env.buf_in_buf_out();
 
         match func_id {
-            XvmFuncId::XvmCall => {
+            XvmFuncId::Call => {
                 // We need to immediately charge for the worst case scenario. Gas equals Weight in pallet-contracts context.
-                let remaining_weight = env.ext().gas_meter().gas_left();
+                let weight_limit = env.ext().gas_meter().gas_left();
+                // TODO: track proof size in align fees ticket
                 // We don't track used proof size, so we can't refund after.
                 // So we will charge a 32KB dummy value as a temporary replacement.
-                let charged_weight =
-                    env.charge_weight(remaining_weight.set_proof_size(32 * 1024))?;
+                let charged_weight = env.charge_weight(weight_limit.set_proof_size(32 * 1024))?;
 
                 let caller = match env.ext().caller().clone() {
                     Origin::Signed(address) => address,
@@ -82,47 +83,60 @@ where
                             target: "xvm-extension::xvm_call",
                             "root origin not supported"
                         );
-                        // TODO: expand XvmErrors with BadOrigin
-                        return Ok(RetVal::Converging(XvmExecutionResult::UnknownError as u32));
+                        return Ok(RetVal::Converging(
+                            XvmExecutionResult::from(CallError::BadOrigin).into(),
+                        ));
                     }
                 };
 
                 let XvmCallArgs { vm_id, to, input } = env.read_as_unbounded(env.in_len())?;
 
                 let _origin_address = env.ext().address().clone();
                 let _value = env.ext().value_transferred();
-                let xvm_context = XvmContext {
-                    id: vm_id,
-                    max_weight: remaining_weight,
-                    env: None,
+                let xvm_context = Context {
+                    source_vm_id: VmId::Wasm,
+                    weight_limit,
                 };
 
-                let call_result =
-                    pallet_xvm::Pallet::<T>::xvm_bare_call(xvm_context, caller, to, input);
+                let vm_id = {
+                    match TryInto::<VmId>::try_into(vm_id) {
+                        Ok(id) => id,
+                        Err(err) => {
+                            // TODO: Propagate error
+                            let result = Into::<XvmExecutionResult>::into(err);
+                            return Ok(RetVal::Converging(result.into()));
+                        }
+                    }
+                };
+                let call_result = XC::call(xvm_context, vm_id, caller, to, input);
 
-                let actual_weight = pallet_xvm::consumed_weight(&call_result);
+                let actual_weight = match call_result {
+                    Ok(ref info) => info.used_weight,
+                    Err(ref err) => err.used_weight,
+                };
                 env.adjust_weight(charged_weight, actual_weight);
 
                 match call_result {
-                    Ok(success) => {
+                    Ok(info) => {
                         log::trace!(
                             target: "xvm-extension::xvm_call",
-                            "success: {:?}", success
+                            "info: {:?}", info
                         );
 
-                        let buffer: sp_std::vec::Vec<_> = success.output().encode();
+                        let buffer: sp_std::vec::Vec<_> = info.output.encode();
                         env.write(&buffer, false, None)?;
-                        Ok(RetVal::Converging(XvmExecutionResult::Success as u32))
+                        Ok(RetVal::Converging(XvmExecutionResult::Ok.into()))
                     }
 
-                    Err(failure) => {
+                    Err(err) => {
                         log::trace!(
                             target: "xvm-extension::xvm_call",
-                            "failure: {:?}", failure
+                            "err: {:?}", err
                         );
 
                         // TODO Propagate error
-                        Ok(RetVal::Converging(XvmExecutionResult::UnknownError as u32))
+                        let result = Into::<XvmExecutionResult>::into(err.error);
+                        Ok(RetVal::Converging(result.into()))
                     }
                 }
             }

pallets/ethereum-checked/src/lib.rs

@@ -20,7 +20,7 @@
 //!
 //! ## Overview
 //!
-//! A `pallet-ethererum` like pallet that execute transactions from checked source,
+//! A `pallet-ethereum like pallet that execute transactions from checked source,
 //! like XCM remote call, cross-VM call, etc. Only `Call` transactions are supported
 //! (no `Create`).
 //!