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Pascal reported and bisected a commit: | x86/PCI: don't call e820_all_mapped with -1 in the mmconfig case which broke one system system. ACPI: Using IOAPIC for interrupt routing PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 255 PCI: MCFG area at f0000000 reserved in ACPI motherboard resources PCI: Using MMCONFIG for extended config space it didn't have PCI: updated MCFG configuration 0: base f0000000 segment 0 buses 0 - 63 anymore, and try to use 0xf000000 - 0xffffffff for mmconfig For 32bit, mcfg_res->end could be 32bit only (if 64 resources aren't used) So use end - 1 to pass the value in mcfg->end to avoid overflow. We don't need to worry about the e820 path, they are always 64 bit. Reported-by: Pascal Terjan <pterjan@mandriva.com> Bisected-by: Pascal Terjan <pterjan@mandriva.com> Tested-by: Pascal Terjan <pterjan@mandriva.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: stable@kernel.org Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> |
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| .. | ||
| acpi.c | ||
| amd_bus.c | ||
| common.c | ||
| direct.c | ||
| early.c | ||
| fixup.c | ||
| i386.c | ||
| init.c | ||
| irq.c | ||
| legacy.c | ||
| Makefile | ||
| mmconfig_32.c | ||
| mmconfig_64.c | ||
| mmconfig-shared.c | ||
| numaq_32.c | ||
| olpc.c | ||
| pcbios.c | ||
| visws.c | ||