From: Mahesh Salgaonkar <mah...@linux.vnet.ibm.com>
Print out details about new MCE errors from Power9.
Signed-off-by: Mahesh Salgaonkar <mah...@linux.vnet.ibm.com>
---
arch/powerpc/kernel/mce.c | 68 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index 36da14a3..da12992 100644
--- a/arch/powerpc/kernel/mce.c
+++ b/arch/powerpc/kernel/mce.c
@@ -264,6 +264,29 @@ void machine_check_print_event_info(struct
OpalMachineCheckEvent *evt)
"Indeterminate",
"Parity",
"Multihit",
+ "Tlbiel programming error",
+ };
+ static const char *mc_nest_types[] = {
+ "Ifetch due to foreign link time out",
+ "Instruction tablewalk due to foreign link time out",
+ "Foreign Link Time out for load",
+ "Foreign Link Time out for tablewalk",
+ };
+ static const char *mc_cresp_types[] = {
+ "Real Address error for an ifetch",
+ "Real Address error for an ifetch tablewalk",
+ "Bad real address for a load",
+ "Bad address for load/store tablewalk",
+ };
+ static const char *mc_fspace_types[] = {
+ "Instruction Fetch to foreign address space",
+ "I-side tablewalk host real addr in the foreign address range",
+ "Host real addess to foreign space",
+ "Load/store real address went to a foreign address",
+ };
+ static const char *mc_async_types[] = {
+ "Real address error (CRESP) from store",
+ "Foreign link time out (nest abort) due to a store instruction",
};
/* Print things out */
@@ -341,6 +364,43 @@ void machine_check_print_event_info(struct
OpalMachineCheckEvent *evt)
printk("%s Effective address: %016llx\n",
level, evt->u.tlb_error.effective_address);
break;
+ case MCE_ERROR_TYPE_NEST:
+ subtype = evt->u.nest_error.nest_error_type <
+ ARRAY_SIZE(mc_nest_types) ?
+ mc_nest_types[evt->u.nest_error.nest_error_type]
+ : "Unknown";
+ printk("%s Error type: NEST ABORT [%s]\n", level, subtype);
+ if (evt->u.nest_error.effective_address_provided)
+ printk("%s Effective address: %016llx\n",
+ level, evt->u.nest_error.effective_address);
+ break;
+ case MCE_ERROR_TYPE_CRESP:
+ subtype = evt->u.cresp_error.cresp_error_type <
+ ARRAY_SIZE(mc_cresp_types) ?
+ mc_cresp_types[evt->u.cresp_error.cresp_error_type]
+ : "Unknown";
+ printk("%s Error type: CRESP [%s]\n", level, subtype);
+ if (evt->u.cresp_error.effective_address_provided)
+ printk("%s Effective address: %016llx\n",
+ level, evt->u.cresp_error.effective_address);
+ break;
+ case MCE_ERROR_TYPE_FSPACE:
+ subtype = evt->u.fspace_error.fspace_error_type <
+ ARRAY_SIZE(mc_fspace_types) ?
+ mc_fspace_types[evt->u.fspace_error.fspace_error_type]
+ : "Unknown";
+ printk("%s Error type: FOREIGN SPACE [%s]\n", level, subtype);
+ if (evt->u.fspace_error.effective_address_provided)
+ printk("%s Effective address: %016llx\n",
+ level, evt->u.fspace_error.effective_address);
+ break;
+ case MCE_ERROR_TYPE_ASYNC:
+ subtype = evt->u.async_error.async_error_type <
+ ARRAY_SIZE(mc_async_types) ?
+ mc_async_types[evt->u.async_error.async_error_type]
+ : "Unknown";
+ printk("%s Error type: ASYNC MC [%s]\n", level, subtype);
+ break;
default:
case MCE_ERROR_TYPE_UNKNOWN:
printk("%s Error type: Unknown\n", level);
@@ -367,6 +427,14 @@ uint64_t get_mce_fault_addr(struct OpalMachineCheckEvent
*evt)
if (evt->u.tlb_error.effective_address_provided)
return evt->u.tlb_error.effective_address;
break;
+ case MCE_ERROR_TYPE_NEST:
+ if (evt->u.nest_error.effective_address_provided)
+ return evt->u.nest_error.effective_address;
+ break;
+ case MCE_ERROR_TYPE_CRESP:
+ if (evt->u.cresp_error.effective_address_provided)
+ return evt->u.cresp_error.effective_address;
+ break;
default:
case MCE_ERROR_TYPE_UNKNOWN:
break;
