From 1d479f160c500249d8fa4d21e7d2b7aaffc04daf Mon Sep 17 00:00:00 2001 From: John Garry Date: Mon, 12 Jul 2021 19:12:15 +0800 Subject: iommu: Deprecate Intel and AMD cmdline methods to enable strict mode Now that the x86 drivers support iommu.strict, deprecate the custom methods. Signed-off-by: John Garry Acked-by: Robin Murphy Reviewed-by: Lu Baolu Link: https://lore.kernel.org/r/1626088340-5838-2-git-send-email-john.garry@huawei.com Signed-off-by: Joerg Roedel --- Documentation/admin-guide/kernel-parameters.txt | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'Documentation/admin-guide') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index bdb22006f713..a04d2748c99a 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -290,10 +290,7 @@ amd_iommu= [HW,X86-64] Pass parameters to the AMD IOMMU driver in the system. Possible values are: - fullflush - enable flushing of IO/TLB entries when - they are unmapped. Otherwise they are - flushed before they will be reused, which - is a lot of faster + fullflush - Deprecated, equivalent to iommu.strict=1 off - do not initialize any AMD IOMMU found in the system force_isolation - Force device isolation for all @@ -1944,9 +1941,7 @@ this case, gfx device will use physical address for DMA. strict [Default Off] - With this option on every unmap_single operation will - result in a hardware IOTLB flush operation as opposed - to batching them for performance. + Deprecated, equivalent to iommu.strict=1. sp_off [Default Off] By default, super page will be supported if Intel IOMMU has the capability. With this option, super page will -- cgit v1.3