Hi,
Sorry for the noise, when set/change STE, why it need to call
arm_smmu_sync_ste_for_sid() two times using diferent dst[0], as shown below.
static void arm_smmu_write_strtab_ent(struct arm_smmu_device *smmu, u32 sid,
u64 *guest_ste, u64 *dst, bool bypass,
u32 vmid)
{
.....................
arm_smmu_sync_ste_for_sid(smmu, sid);
dst[0] = val;
dsb(ishst);
arm_smmu_sync_ste_for_sid(smmu, sid);
}
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