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This reverts commitab96746aaa. The commitab96746aaa("iommu/vt-d: Clean up pasid quirk for pre-production devices") triggers ECS mode on some platforms which have broken ECS support. As the result, graphic device will be inoperable on boot. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107017 Cc: Ashok Raj <[email protected]> Signed-off-by: Lu Baolu <[email protected]> Signed-off-by: Joerg Roedel <[email protected]>