• Samuel Groß's avatar
    Introduce VirtualAddressSpace interface · a7cb30b0
    Samuel Groß authored
    This interface is meant to eventually replace the existing
    v8::PageAllocator interface. Beyond general refactoring of the
    PageAllocator APIs, the new interface now supports the concept of
    (contiguous) address space reservations, which previously had to be
    implemented through page allocations. These reservations now make better
    use of provided OS primitives on Fuchsia (VMARs) and Windows
    (placeholder mappings) and can be used to back many of the cages and
    virtual memory regions that V8 creates.
    
    The new interface is not yet stable and may change at any time without
    deprecating the old version first.
    
    Bug: chromium:1218005
    Change-Id: I295253c42e04cf311393c5dab9f8c06bd7451ce3
    Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3301475
    Commit-Queue: Samuel Groß <saelo@chromium.org>
    Reviewed-by: 's avatarToon Verwaest <verwaest@chromium.org>
    Reviewed-by: 's avatarMichael Lippautz <mlippautz@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#78235}
    a7cb30b0
vm-cage.cc 12.4 KB