diff options
Diffstat (limited to 'src/fw/pciinit.c')
| -rw-r--r-- | src/fw/pciinit.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/fw/pciinit.c b/src/fw/pciinit.c index badf13d3..0fcd2be5 100644 --- a/src/fw/pciinit.c +++ b/src/fw/pciinit.c @@ -1128,6 +1128,14 @@ static void pci_bios_map_devices(struct pci_bus *busses) r64_mem.base = le64_to_cpu(romfile_loadint("etc/reserved-memory-end", 0)); if (r64_mem.base < 0x100000000LL + RamSizeOver4G) r64_mem.base = 0x100000000LL + RamSizeOver4G; + if (CPUPhysBits) { + u64 top = 1LL << CPUPhysBits; + u64 size = (ALIGN(sum_mem, (1LL<<30)) + + ALIGN(sum_pref, (1LL<<30))); + if (r64_mem.base < top - size) { + r64_mem.base = top - size; + } + } r64_mem.base = ALIGN(r64_mem.base, align_mem); r64_mem.base = ALIGN(r64_mem.base, (1LL<<30)); // 1G hugepage r64_pref.base = r64_mem.base + sum_mem; |