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Heapless to reduce runtime heap allocations #131

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wojciechozga wants to merge 4 commits into from
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Heapless to reduce runtime heap allocations #131

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81342e4
make codebase comliant with CodeQL scans
wojciechozga Sep 29, 2026
aa0f82d
update dependencies
wojciechozga Sep 29, 2026
90519ac
try getting rid of a box
wojciechozga Oct 8, 2026
d619e6a
Merge branch 'main' into woz/heapless
wojciechozga Oct 9, 2026
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4 changes: 2 additions & 2 deletions security-monitor/src/core/architecture/riscv/mmu/page_table.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -127,7 +127,7 @@ impl PageTable {
let address = NonConfidentialMemoryAddress::new(pointer)?;
let page_size = paging_system.data_page_size(level);
let page = PageAllocator::acquire_page(page_size)?.copy_from_non_confidential_memory(address)?;
LogicalPageTableEntry::PageWithConfidentialVmData(Box::new(page))
LogicalPageTableEntry::PageWithConfidentialVmData(page)
}
};
serialized_representation.write(index, logical_page_table_entry.serialize()).unwrap();
Expand Down Expand Up @@ -161,7 +161,7 @@ impl PageTable {
&mut self, confidential_vm_address: &ConfidentialVmPhysicalAddress, page_size: &PageSize,
) -> Result<PageSize, Error> {
let page = PageAllocator::acquire_page(*page_size)?.zeroize();
let entry = LogicalPageTableEntry::PageWithConfidentialVmData(Box::new(page));
let entry = LogicalPageTableEntry::PageWithConfidentialVmData(page);
self.map_page(confidential_vm_address, page_size, entry)?;
Ok(*page_size)
}
Expand Down
2 changes: 1 addition & 1 deletion security-monitor/src/core/architecture/riscv/mmu/page_table_entry.rs
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Expand Up @@ -19,7 +19,7 @@ pub(super) enum LogicalPageTableEntry {
PointerToNextPageTable(Box<PageTable>),
#[rr::pattern("PageWithConfidentialVmData" $ "p", "conf", "perm")]
#[rr::refinement("-[ #(#p); #conf; #perm]")]
PageWithConfidentialVmData(Box<Page<Allocated>>),
PageWithConfidentialVmData(Page<Allocated>),
#[rr::pattern("PageSharedWithHypervisor" $ "sp", "conf", "perm")]
#[rr::refinement("-[ #sp; #conf; #perm]")]
PageSharedWithHypervisor(SharedPage),
Expand Down
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