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| author | Sean Christopherson <[email protected]> | 2025-02-04 00:40:35 +0000 |
|---|---|---|
| committer | Sean Christopherson <[email protected]> | 2025-02-14 15:17:33 +0000 |
| commit | 9fb13ba6b5ff9649f4283724ed75828d8a53cf3b (patch) | |
| tree | 7f735713c8676f36d91b2d78af12fa2c55c7db1f /tools/testing/selftests/net/lib/py/utils.py | |
| parent | KVM: x86/mmu: Only check gfn age in shadow MMU if indirect_shadow_pages > 0 (diff) | |
| download | kernel-9fb13ba6b5ff9649f4283724ed75828d8a53cf3b.tar.gz kernel-9fb13ba6b5ff9649f4283724ed75828d8a53cf3b.zip | |
KVM: x86/mmu: Refactor low level rmap helpers to prep for walking w/o mmu_lock
Refactor the pte_list and rmap code to always read and write rmap_head->val
exactly once, e.g. by collecting changes in a local variable and then
propagating those changes back to rmap_head->val as appropriate. This will
allow implementing a per-rmap rwlock (of sorts) by adding a LOCKED bit into
the rmap value alongside the MANY bit.
Signed-off-by: James Houghton <[email protected]>
Acked-by: Yu Zhao <[email protected]>
Reviewed-by: James Houghton <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>
Diffstat (limited to 'tools/testing/selftests/net/lib/py/utils.py')
0 files changed, 0 insertions, 0 deletions