Re: [PATCH 0/6] Apple NVMe fixes for macOS 15+ firmware / M4 support

["Joshua Peisach" <jpeisach@ubuntu.com>]

On Thu Aug 6, 2026 at 11:27 AM EDT, Sven Peter wrote:
> Hi,
>
> This series fixes a bunch of bugs that were working fine with M1/M2 NVMe
> controllers with older firmware but are now starting to bite us.
> With macOS 15 a new firmware is installed for the controller and both
> XNU and the controller are a bit more strict now. This firmware is
> required once we add M4 support.
>
> The first patch fixes a panic that can happen when the controller fails
> to initialize, which now happens for the first time with the new
> firmware. The other fixes then make it work again.
>
> Best,
>
> Sven
>
> Signed-off-by: Sven Peter <sven@kernel.org>
> ---
> Sven Peter (6):
>       nvme-apple: Destroy the admin queue on removal
>       nvme-apple: Don't set a DMA direction for commands without a data transfer
>       nvme-apple: Never set the opcode in the NVMMU TCB
>       nvme: Add a quirk for page aligned admin queue buffers
>       nvme-apple: Require page aligned buffers on the admin queue
>       nvme-apple: Drop the PRP null check chicken bit
>
>  drivers/nvme/host/apple.c | 32 +++++++++++++++-----------------
>  drivers/nvme/host/core.c  |  5 ++++-
>  drivers/nvme/host/nvme.h  |  7 +++++++
>  3 files changed, 26 insertions(+), 18 deletions(-)
> ---
> base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
> change-id: 20260806-b4-nvme-fwabi-000386148b21
>
> Best regards,
> --  
> Sven Peter <sven@kernel.org>

On MacBookPro18,1 (J316s, 2021) with macOS 27 beta installed.

Tested-by: Joshua Peisach <jpeisach@ubuntu.com>