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2019-08-23iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systemsKai-Heng Feng1-0/+14
Raven Ridge systems may have malfunction touchpad or hang at boot if incorrect IVRS IOAPIC is provided by BIOS. Users already found correct "ivrs_ioapic=" values, let's put them inside kernel to workaround buggy BIOS. BugLink: https://bugs.launchpad.net/bugs/1795292 BugLink: https://bugs.launchpad.net/bugs/1837688 Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>