hello mowa,
please apply below patch, and rebuilt kernel image to add support for reading KEK0, KEK1, KEK2 fuses on Xavier.
thanks
L4T_sources/r32.4.2/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/soc/tegra/fuse/fuse-burn.c
static struct tegra_fuse_hw_feature tegra194_fuse_chip_data = {
.burn_data = {
...
+ FUSE_BURN_DATA(kek0, 0x6f, 30, 128, 0x2c0, false, true),
+ FUSE_BURN_DATA(kek1, 0x73, 30, 128, 0x2d0, false, true),
+ FUSE_BURN_DATA(kek2, 0x77, 30, 128, 0x2e0, false, true),