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| author | Zhen Lei <thunder.leizhen@huawei.com> | 2021-07-12 19:12:17 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-07-26 13:27:38 +0200 |
| commit | 712d8f205835c1d170e85d7811da3d9f36d8fab7 (patch) | |
| tree | 1a3c0c3868e40bae3b9dd2bb62a1197f2f1c6cf0 /drivers/iommu/iommu.c | |
| parent | d8577d2e331dc06f5871afa6b76035dd8b74c903 (diff) | |
| download | linux-stable-712d8f205835c1d170e85d7811da3d9f36d8fab7.tar.gz linux-stable-712d8f205835c1d170e85d7811da3d9f36d8fab7.tar.bz2 linux-stable-712d8f205835c1d170e85d7811da3d9f36d8fab7.zip | |
iommu: Enhance IOMMU default DMA mode build options
First, add build options IOMMU_DEFAULT_{LAZY|STRICT}, so that we have the
opportunity to set {lazy|strict} mode as default at build time. Then put
the two config options in an choice, as they are mutually exclusive.
[jpg: Make choice between strict and lazy only (and not passthrough)]
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/1626088340-5838-4-git-send-email-john.garry@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 69d7d4865668..bd9ccce387c5 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -30,7 +30,7 @@ static struct kset *iommu_group_kset; static DEFINE_IDA(iommu_group_ida); static unsigned int iommu_def_domain_type __read_mostly; -static bool iommu_dma_strict __read_mostly = true; +static bool iommu_dma_strict __read_mostly = IS_ENABLED(CONFIG_IOMMU_DEFAULT_STRICT); static u32 iommu_cmd_line __read_mostly; struct iommu_group { |