soc/intel/xeon_sp/uncore: Don't print uninitialized memory
The struct map_entry has two zero'd entries due to the ifdef
being used. Do not read those entries and do not print those
entries.
Fixes a NULL string being printed along as the vendor and device
ID of the PCI device.
Change-Id: Id87ced76af552c0d064538f8140d1b78724fb833
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80546
Reviewed-by: Shuo Liu <shuo.liu@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/soc/intel/xeon_sp/uncore.c b/src/soc/intel/xeon_sp/uncore.c
index ddc6e82..de2d175 100644
--- a/src/soc/intel/xeon_sp/uncore.c
+++ b/src/soc/intel/xeon_sp/uncore.c
@@ -72,6 +72,11 @@
uint64_t value;
uint64_t mask;
+ if (!entry->reg) {
+ *result = 0;
+ return;
+ }
+
/* All registers are on a 1MiB granularity. */
mask = ((1ULL << entry->mask_bits) - 1);
mask = ~mask;
@@ -103,6 +108,9 @@
{
int i;
for (i = 0; i < NUM_MAP_ENTRIES; i++) {
+ if (!memory_map[i].description)
+ continue;
+
printk(BIOS_DEBUG, "MC MAP: %s: 0x%llx\n",
memory_map[i].description, values[i]);
}