diff options
| -rw-r--r-- | src/lib/ramdetect.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/lib/ramdetect.c b/src/lib/ramdetect.c index cfec0296e7..9a29d0fe94 100644 --- a/src/lib/ramdetect.c +++ b/src/lib/ramdetect.c @@ -57,9 +57,12 @@ size_t probe_ramsize(const uintptr_t dram_start, const size_t probe_size) msb = MIN(msb, MAX_ADDRESSABLE_SPACE); /* Compact binary search. */ - for (i = msb; i >= 0; i--) + for (i = msb; i >= 0; i--) { + if ((discovered | (1ULL << i)) > probe_size) + continue; if (probe_mb(dram_start, (discovered | (1ULL << i)))) discovered |= (1ULL << i); + } saved_result = discovered; printk(BIOS_DEBUG, "RAMDETECT: Found %zu MiB RAM\n", discovered); |