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x86/PCI: Ignore _CRS on Supermicro X8DTH-i/6/iF/6F
Martin reported that the Supermicro X8DTH-i/6/iF/6F advertises incorrect host bridge windows via _CRS: pci_root PNP0A08:00: host bridge window [io 0xf000-0xffff] pci_root PNP0A08:01: host bridge window [io 0xf000-0xffff] Both bridges advertise the 0xf000-0xffff window, which cannot be correct. Work around this by ignoring _CRS on this system. The downside is that we may not assign resources correctly to hot-added PCI devices (if they are possible on this system). Link: https://bugzilla.kernel.org/show_bug.cgi?id=42606 Reported-by: Martin Burnicki <martin.burnicki@meinberg.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org
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@ -114,6 +114,16 @@ static const struct dmi_system_id pci_crs_quirks[] __initconst = {
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DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"),
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},
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},
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/* https://bugzilla.kernel.org/show_bug.cgi?id=42606 */
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{
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.callback = set_nouse_crs,
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.ident = "Supermicro X8DTH",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
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DMI_MATCH(DMI_PRODUCT_NAME, "X8DTH-i/6/iF/6F"),
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DMI_MATCH(DMI_BIOS_VERSION, "2.0a"),
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},
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},
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/* https://bugzilla.kernel.org/show_bug.cgi?id=15362 */
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{
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