iommu/amd: Add ioapic and hpet ivrs override

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Add two new kernel commandline parameters ivrs_ioapic and
ivrs_hpet to override the Id->DeviceId mapping from the IVRS
ACPI table. This can be used to work around broken BIOSes to
get interrupt remapping working on AMD systems.

Tested-by: Borislav Petkov <bp@suse.de>
Tested-by: Suravee Suthikulanit <suravee.suthikulpanit@amd.com>
Reviewed-by: Shuah Khan <shuahkhan@gmail.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>

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Joerg Roedel 2013-04-09 16:35:28 +02:00

parent 235dacbc79

commit 440e899805

1 changed files with 62 additions and 2 deletions

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drivers/iommu/amd_iommu_init.c

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