Now we only use TT0 translation, disable TT1 translation will safer.
Signed-off-by: Zhen Lei <[email protected]>
---
drivers/iommu/arm-smmu-v3.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 43120ad..6d6712e 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -285,6 +285,7 @@
#define ARM64_TCR_EPD1_MASK 0x1UL
#define CTXDESC_CD_0_ENDI (1UL << 15)
+#define CTXDESC_CD_0_EPD1 (1UL << 30)
#define CTXDESC_CD_0_V (1UL << 31)
#define CTXDESC_CD_0_TCR_IPS_SHIFT 32
@@ -893,7 +894,7 @@ static void arm_smmu_write_ctx_desc(struct arm_smmu_device
*smmu,
#endif
CTXDESC_CD_0_R | CTXDESC_CD_0_A | CTXDESC_CD_0_ASET_PRIVATE |
CTXDESC_CD_0_AA64 | (u64)cfg->cd.asid << CTXDESC_CD_0_ASID_SHIFT |
- CTXDESC_CD_0_V;
+ CTXDESC_CD_0_EPD1 | CTXDESC_CD_0_V;
cfg->cdptr[0] = cpu_to_le64(val);
val = cfg->cd.ttbr & CTXDESC_CD_1_TTB0_MASK << CTXDESC_CD_1_TTB0_SHIFT;
--
1.8.0
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