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| author | Fletcher Woodruff <fletcherw@chromium.org> | 2020-01-22 16:58:28 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-01-23 16:23:21 +0000 |
| commit | 42bff13009bfa0361ad1572997aba5f457cf38f3 (patch) | |
| tree | a17514da0e0018870672984d5eaa30924c57a804 /qcow_utils | |
| parent | f9fc42376a68c17985e2b2d68c077d66f18e3feb (diff) | |
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guest_memory: add fn to get memfd offset of addr
Add a function offset_from_base() which, given a GuestAddress, determines the offset of that address within the backing memfd of the GuestMemory. In other words, this lets you convert a GuestAddress into an offset that can be understood by another process which has mapped the the memfd and would like to read from that address. BUG=chromium:968724 TEST=cargo test Change-Id: I5b033ad29dd38090f74577c068cc62ee9c6effb6 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2015835 Tested-by: Fletcher Woodruff <fletcherw@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Dylan Reid <dgreid@chromium.org> Commit-Queue: Fletcher Woodruff <fletcherw@chromium.org>
Diffstat (limited to 'qcow_utils')
0 files changed, 0 insertions, 0 deletions