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vmm: Clarify memory regions are required to be page-size aligned

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Signed-off-by: Bo Chen <chen.bo@intel.com>
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Bo Chen 2023-06-12 11:17:57 -07:00 committed by Bo Chen
parent b06ad85604
commit de31b3fadc
1 changed files with 3 additions and 0 deletions
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vmm/src/memory_manager.rs
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@ -519,6 +519,9 @@ impl MemoryManager {
/// - First one mapping entirely the first memory zone on 0-1G range
/// - Second one mapping partially the second memory zone on 1G-3G range
/// - Third one mapping partially the second memory zone on 4G-6G range
/// Also, all memory regions are page-size aligned (e.g. their sizes must
/// be multiple of page-size), which may leave an additional hole in the
/// address space when hugepage is used.
fn create_memory_regions_from_zones(
ram_regions: &[(GuestAddress, usize)],
zones: &[MemoryZoneConfig],