[PATCH] iommu: Don't use sme_active() in generic code

From: Joerg Roedel
Date: Tue Sep 03 2019 - 09:15:44 EST


Switch to the generic function mem_encrypt_active() because
sme_active() is x86 specific and can't be called from
generic code on other platforms than x86.

Fixes: 2cc13bb4f59f ("iommu: Disable passthrough mode when SME is active")
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
---
drivers/iommu/iommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 66cfacaa483d..d658c7c6a2ab 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -120,8 +120,8 @@ static int __init iommu_subsys_init(void)
else
iommu_set_default_translated(false);

- if (iommu_default_passthrough() && sme_active()) {
- pr_info("SME detected - Disabling default IOMMU Passthrough\n");
+ if (iommu_default_passthrough() && mem_encrypt_active()) {
+ pr_info("Memory encryption detected - Disabling default IOMMU Passthrough\n");
iommu_set_default_translated(false);
}
}
--
2.16.4