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Commit fd0c8894 authored by Ben Hutchings's avatar Ben Hutchings Committed by David Woodhouse
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intel-iommu: Set a more specific taint flag for invalid BIOS DMAR tables 



We now know how to deal with these tables so that they are harmless.
Set TAINT_FIRMWARE_WORKAROUND instead of the default TAINT_WARN.

Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 3a8663ee

drivers/pci/dmar.c

+16 −12
Original line number Diff line number Diff line
@@ -360,7 +360,9 @@ dmar_parse_one_rhsa(struct acpi_dmar_header *header) 
			return 0;

		}

	}

	WARN(1, "Your BIOS is broken; RHSA refers to non-existent DMAR unit at %llx\n"

	WARN_TAINT(

		1, TAINT_FIRMWARE_WORKAROUND,

		"Your BIOS is broken; RHSA refers to non-existent DMAR unit at %llx\n"

		"BIOS vendor: %s; Ver: %s; Product Version: %s\n",

		drhd->reg_base_addr,

		dmi_get_system_info(DMI_BIOS_VENDOR),
@@ -620,7 +622,9 @@ int __init dmar_table_init(void) 


static void warn_invalid_dmar(u64 addr, const char *message)

{

	WARN_ONCE(1, "Your BIOS is broken; DMAR reported at address %llx%s!\n"

	WARN_TAINT_ONCE(

		1, TAINT_FIRMWARE_WORKAROUND,

		"Your BIOS is broken; DMAR reported at address %llx%s!\n"

		"BIOS vendor: %s; Ver: %s; Product Version: %s\n",

		addr, message,

		dmi_get_system_info(DMI_BIOS_VENDOR),