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[SPARC64]: Fix hypervisor TLB operation error reporting.

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1) Trap level wasn't being passed down properly, we need to
   move it from %l4 into the correct outgoing arg register.

2) Although the TPC often provides the most direct clue, we
   have the caller PC so we should provide that as well.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-01-17 01:32:09 -08:00
parent d8c89eb3a1
commit 6320bcebc0
2 changed files with 6 additions and 0 deletions
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2
arch/sparc64/kernel/sun4v_tlb_miss.S
View File

@ -215,6 +215,7 @@ sun4v_itlb_error:
1: ba,pt %xcc, etrap
2: or %g7, %lo(2b), %g7
mov %l4, %o1
call sun4v_itlb_error_report
add %sp, PTREGS_OFF, %o0
@ -241,6 +242,7 @@ sun4v_dtlb_error:
1: ba,pt %xcc, etrap
2: or %g7, %lo(2b), %g7
mov %l4, %o1
call sun4v_dtlb_error_report
add %sp, PTREGS_OFF, %o0

4
arch/sparc64/kernel/traps.c
View File

@ -1950,6 +1950,8 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl)
printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n",
regs->tpc, tl);
print_symbol(KERN_EMERG "SUN4V-ITLB: TPC<%s>\n", regs->tpc);
printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
print_symbol(KERN_EMERG "SUN4V-ITLB: O7<%s>\n", regs->u_regs[UREG_I7]);
printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] "
"pte[%lx] error[%lx]\n",
sun4v_err_itlb_vaddr, sun4v_err_itlb_ctx,
@ -1971,6 +1973,8 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl)
printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n",
regs->tpc, tl);
print_symbol(KERN_EMERG "SUN4V-DTLB: TPC<%s>\n", regs->tpc);
printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
print_symbol(KERN_EMERG "SUN4V-DTLB: O7<%s>\n", regs->u_regs[UREG_I7]);
printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] "
"pte[%lx] error[%lx]\n",
sun4v_err_dtlb_vaddr, sun4v_err_dtlb_ctx,