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ipc: protect kernel IPC state in user LL/DP builds - #11439

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kv2019i wants to merge 7 commits into

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kv2019i:202611-ipc-msg-kqueue

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ipc: protect kernel IPC state in user LL/DP builds#11439
kv2019i wants to merge 7 commits into
thesofproject:mainfrom
kv2019i:202611-ipc-msg-kqueue

Commits on Nov 11, 2026
- ipc: keep send-queue state in kernel-only memory
  kv2019i
  committed
  63430cf
- ipc: move IPC processing task into kernel-only state
  kv2019i
  committed
  990453a
- ipc4: use a kernel copy of the IPC data buffer pointer
  kv2019i
  committed
  402a2d8
- ipc: queue user-originated messages through kernel-owned slots
  kv2019i
  committed
  0f84e4d
- ipc: drop queued user IPC messages when freeing a module domain
  kv2019i
  committed
  66222bb
- zephyr: test: userspace: add tests for user IPC message queueing
  kv2019i
  committed
  8ed8e24
- userspace: doc: document queueing of IPC messages from user threads
  kv2019i
  committed
  a891d22