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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the akita/terrier board types: https://mail.gnu.org/archive/html/qemu-devel/2007-07/msg00344.html Even then, it was an out-of-date mechanism from the kernel's point of view -- the kernel has had a comment since 2001 marking it as deprecated.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 |
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| .. | ||
| arch_init.c | ||
| async-teardown.c | ||
| balloon.c | ||
| bootdevice.c | ||
| cpu-timers.c | ||
| cpus.c | ||
| datadir.c | ||
| device_tree-stub.c | ||
| device_tree.c | ||
| dirtylimit.c | ||
| dma-helpers.c | ||
| globals.c | ||
| ioport.c | ||
| main.c | ||
| memory.c | ||
| memory_ldst.c.inc | ||
| memory_mapping.c | ||
| meson.build | ||
| physmem.c | ||
| qdev-monitor.c | ||
| qemu-seccomp.c | ||
| qtest.c | ||
| rtc.c | ||
| runstate-action.c | ||
| runstate-hmp-cmds.c | ||
| runstate.c | ||
| tpm-hmp-cmds.c | ||
| tpm.c | ||
| trace-events | ||
| trace.h | ||
| vl.c | ||
| watchpoint.c | ||