rasdaemon: mce: decode io port for bus error

mcelog decode bus error with io port like:

  ...
  MCA: BUS error: 0 0 Level-3 Generic IO Request-did-not-timeout
  IO MCA reported by root port 0:7b:07.0
  ...

Introduce the code into rasdaemon.

Signed-off-by: Ruidong Tian <tianruidong@linux.alibaba.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/mce-intel.c b/mce-intel.c
index e67254f06a90e50c0485e883d490cd24d7fec93a..69b99e811e83bf02d3db136083dd1b0954f4c33f 100644 (file)
--- a/mce-intel.c
+++ b/mce-intel.c
@@ -221,6 +221,8 @@ static char *get_RRRR_str(uint8_t rrrr)
 static void decode_mca(struct mce_event *e, uint64_t track, int *ismemerr)
 {
        uint32_t mca = e->status & 0xffffL;
+       uint64_t status = e->status;
+       uint64_t misc = e->misc;
 
        if (mca & (1UL << 12)) {
                mce_snprintf(e->mcastatus_msg,
@@ -265,6 +267,16 @@ static void decode_mca(struct mce_event *e, uint64_t track, int *ismemerr)
                             get_RRRR_str((mca & BUS_RRRR_MASK) >> BUS_RRRR_SHIFT),
                             decode_attr(II, (mca & BUS_II_MASK) >> BUS_II_SHIFT),
                             decode_attr(T, (mca & BUS_T_MASK) >> BUS_T_SHIFT));
+               if ((status & MCI_STATUS_MISCV) && (status & 0xefff) == 0x0e0b) {
+                       int seg, bus, dev, fn;
+
+                       seg = EXTRACT(misc, 32, 39);
+                       bus = EXTRACT(misc, 24, 31);
+                       dev = EXTRACT(misc, 19, 23);
+                       fn = EXTRACT(misc, 16, 18);
+                       mce_snprintf(e->mcastatus_msg, "IO MCA reported by root port %x:%02x:%02x.%x",
+                                    seg, bus, dev, fn);
+               }
        } else if (test_prefix(7, mca)) {
                decode_memory_controller(e, mca);
                *ismemerr = 1;