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arm64/dt: add machine name to kernel call stack dump output

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This installs the machine name as recorded by setup_machine_fdt()
as dump stack arch description. This results in the string to be
included in call stack dumps, as is shown here:

  ...
  Bad mode in Synchronous Abort handler detected, code 0x84000005
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.18.0-rc2+ #548
> Hardware name: linux,dummy-virt (DT)
  task: ffffffc07c870000 ti: ffffffc07c878000 task.ti: ffffffc07c878000
  PC is at 0x0
  ...

Note that systems that support DMI/SMBIOS may override this later.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Ard Biesheuvel 2014-10-28 12:24:20 +00:00 committed by Will Deacon
parent 5284e1b4bc
commit d8c6d8b877
1 changed files with 1 additions and 0 deletions
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1
arch/arm64/kernel/setup.c
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@ -312,6 +312,7 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
}
machine_name = of_flat_dt_get_machine_name();
dump_stack_set_arch_desc("%s (DT)", machine_name);
}
/*