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x86: display call stack for IRQ 133 (for debug)

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This commit is contained in:
Balazs Gerofi
2016-12-07 11:32:02 +09:00
parent 8fced29978
commit fad73cacc1
1 changed files with 22 additions and 0 deletions
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22
arch/x86/kernel/cpu.c
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@@ -844,6 +844,25 @@ void set_signal(int sig, void *regs, struct siginfo *info);
void check_signal(unsigned long, void *, int); void check_signal(unsigned long, void *, int);
extern void tlb_flush_handler(int vector); extern void tlb_flush_handler(int vector);
void __show_stack(uintptr_t *sp) {
while (((uintptr_t)sp >= 0xffff800000000000)
&& ((uintptr_t)sp < 0xffffffff80000000)) {
uintptr_t fp;
uintptr_t ip;
fp = sp[0];
ip = sp[1];
kprintf("IP: %016lx, SP: %016lx, FP: %016lx\n", ip, (uintptr_t)sp, fp);
sp = (void *)fp;
}
return;
}
void show_context_stack(uintptr_t *rbp) {
__show_stack(rbp);
return;
}
void handle_interrupt(int vector, struct x86_user_context *regs) void handle_interrupt(int vector, struct x86_user_context *regs)
{ {
struct ihk_mc_interrupt_handler *h; struct ihk_mc_interrupt_handler *h;
@@ -952,6 +971,9 @@ void handle_interrupt(int vector, struct x86_user_context *regs)
tlb_flush_handler(vector); tlb_flush_handler(vector);
} }
else if (vector == 133) {
show_context_stack(regs->gpr.rbp);
}
else { else {
list_for_each_entry(h, &handlers[vector - 32], list) { list_for_each_entry(h, &handlers[vector - 32], list) {
if (h->func) { if (h->func) {