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| author | Peter Maydell <peter.maydell@linaro.org> | 2025-02-07 16:09:20 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2025-02-07 16:09:20 +0000 |
| commit | 751002e74a8e3fc2dd388d57a93e11d3624af6f6 (patch) | |
| tree | 20f686582a937b83314918ccd7988698dcf1cf13 /linux-user/syscall.c | |
| parent | 76723b8ed7b8274a4e30cdf0a9f3e7c47ebe251a (diff) | |
| download | focaccia-qemu-751002e74a8e3fc2dd388d57a93e11d3624af6f6.tar.gz focaccia-qemu-751002e74a8e3fc2dd388d57a93e11d3624af6f6.zip | |
qemu-options: Deprecate -old-param command line option
The '-old-param' command line option is specific to Arm targets; it is very briefly documented as "old param mode". What this option actually does is change the behaviour when directly booting a guest kernel, so that command line arguments are passed to the kernel using the extremely old "param_struct" ABI, rather than the newer ATAGS or even newer DTB mechanisms. This support was added back in 2007 to support an old vendor kernel on the akita/terrier board types: https://mail.gnu.org/archive/html/qemu-devel/2007-07/msg00344.html Even then, it was an out-of-date mechanism from the kernel's point of view -- the kernel has had a comment since 2001 marking it as deprecated. As of mid-2024, the kernel only retained param_struct support for the RiscPC and Footbridge platforms: https://lore.kernel.org/linux-arm-kernel/2831c5a6-cfbf-4fe0-b51c-0396e5b0aeb7@app.fastmail.com/ None of the board types QEMU supports need param_struct support; mark this option as deprecated. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-id: 20250127123113.2947620-1-peter.maydell@linaro.org
Diffstat (limited to 'linux-user/syscall.c')
0 files changed, 0 insertions, 0 deletions