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arm: turn off cpu on panic

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Since interrupts are disabled on panic, linux cannot reset a
panic'd core when NMI are disabled (for e.g. mcreboot/mcstop)

Just always offline it, so linux can get it back

Change-Id: If8107172375f2924e02bd4c36e24645ec38a8999
This commit is contained in:
Dominique Martinet
2019-02-04 15:58:54 +09:00
committed by Masamichi Takagi
parent 60dcd0e798
commit fe08ac4a67
3 changed files with 21 additions and 4 deletions
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10
arch/x86_64/kernel/cpu.c
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@ -1551,7 +1551,8 @@ void arch_print_pre_interrupt_stack(const struct x86_basic_regs *regs) {
__print_stack(rbp, regs->rip);
}
void arch_print_stack() {
void arch_print_stack(void)
{
struct stack *rbp;
__kprintf("Approximative stack trace:\n");
@ -1599,6 +1600,13 @@ return;
kprintf_unlock(irqflags);
}
void arch_cpu_stop(void)
{
while (1) {
cpu_halt();
}
}
/*@
@ behavior fs_base:
@ assumes type == IHK_ASR_X86_FS;