This repository was archived by the owner on Jan 22, 2025. It is now read-only.

Account data direct mapping#28053

Merged

alessandrod merged 44 commits into

solana-labs:masterfrom

alessandrod:direct_mapping

Apr 28, 2023

Commits on Apr 28, 2023

AccountSharedData: make data_mut() private
alessandrod
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Adds the feature bpf_account_data_direct_mapping.

Lichtso
authored and
alessandrod
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Remaps EbpfError::AccessViolation into InstructionError::ReadonlyDataModified.

Lichtso
authored and
alessandrod
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WIP: Memory regions for each instruction account in create_vm().

Lichtso
authored and
alessandrod
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Fix serialization benches, run both copy and !copy variants
alessandrod
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rbpf-cli: fix build
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BorrowedAccount: ensure that account capacity is never reduced
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bpf_load: run serialization tests for both copy and !copy account data
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bpf_loader: add Serializer::write_account
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fix lints
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BorrowedAccount: make_data_mut is host only
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Fix unused import warning
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Fix lints
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cpi: add explicit direct_mapping arg to update_(callee|caller)_account
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cpi: rename account_data_or_only_realloc_padding to serialized_data
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cpi: add CallerAccount::original_data_len comment
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cpi: add update_callee_account direct_mapping test
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cpi: add test_update_caller_account_data_direct_mapping and fix bug
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cpi: add tests for mutated readonly accounts
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cpi: update_caller_account doesn't need to change .serialized_data when direct_mapping is on
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cpi: update_caller_account: ensure that account capacity is always enough
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cpi: zero account capacity using the newly introduced BorrowedAccount::spare_data_capacity_mut()
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bpf_loader: fix same lint for the umpteenth time
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bpf_loader: map AccessViolation to ReadonlyDataModified only for account region violations
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programs/sbf: realloc: add test for large write after realloc
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programs/sbf: run test_program_sbf_realloc with both direct_mapping on and off
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bpf_loader: tweak memcmp syscall
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bpf_loader: tweak the memset syscall
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bpf_loader: syscalls: update mem syscalls to work with non contiguous memory
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fix lint, rebase mem_ops
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Implement CoW for writable accounts
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Fix CI
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Move CoW to the MemoryMapping level
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Update after rbpf API change
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Fix merge screwup
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Add create_vm macro. Fix benches.
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cpi: simplify update_caller_account
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benches/bpf_loader: move serialization out of create_vm bench
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benches/bpf_loader: don't copy accounts when direct mapping is on
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Fix review nits
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bpf_loader: mem_ops: handle u64 overflow in MemoryChunkIterator::new
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Fix loader-v3 tests: data_mut => data_as_mut_slice
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Fix CI
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bpf_loader: fix tuner bench: account must be writable
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