Allow page allocation requests to specify a desired alignment#1029
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kevinaboos merged 2 commits intoAug 23, 2023
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The new `AllocationRequest::AlignedAt` variant can accept an alignment value, specified in number of 4K pages (not bytes). This is needed to support easier allocation of huge pages, which have a large alignment requiement, e.g., 512 4K pages.
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* The new `AllocationRequest::AlignedAt` variant can accept an alignment value, specified in number of 4K pages (not bytes). * This is needed to support easier allocation of huge pages, which have a large alignment requirement, e.g., a 2MiB huge page requires a contiguous 512-page allocation aligned to that same boundary of 512 normal 4K pages (512 * 4KiB = 2MiB). 4e54423
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…s-os#1029) * The new `AllocationRequest::AlignedAt` variant can accept an alignment value, specified in number of 4K pages (not bytes). * This is needed to support easier allocation of huge pages, which have a large alignment requirement, e.g., a 2MiB huge page requires a contiguous 512-page allocation aligned to that same boundary of 512 normal 4K pages (512 * 4KiB = 2MiB).
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The new
AllocationRequest::AlignedAtvariant can accept an alignment value, specified in number of 4K pages (not bytes).This is needed to support easier allocation of huge pages, which have a large alignment requirement, e.g., 512 4K pages.
See #1016.