The serial port printout is shown below.
All content before UEFI Interactive Shell v2.2 is normal, but it becomes garbled after entering UEFI Interactive Shell v2.2.
[0003.795] I> Ratchet: [A_atf]: sw (BCH): 0, hw (BCT): 0
[0003.819] I> MB2-params @ 0xff36000
[0003.830] I> is_multi_sku_enabled 0x0, sku_value 0x0
[0003.834] I> cpubl: Authentication Finalize Done
[0003.839] I> Binary cpubl loaded successfully at 0x1fd0000000
[0003.845] I> Partition name: A_secure-hv
[0003.848] I> Size of partition: 262144
[0003.852] I> Binary@ device:3/0 block-45056 (partition size: 0x40000), name: A_secure-hv
[0003.860] I> max_binary_size for BL32/Hafnium = 0x1e00000
[0003.865] I> Ratchet: [A_secure-hv]: sw (BCH): 0, hw (BCT): 0
[0003.871] I> atf: Authentication Finalize Done
[0003.875] I> Binary atf loaded successfully at 0x1fc6000638
[0003.880] I> Copying ATF DTB (length: 0xd33) from 0x1fc6023a78 to 0xfffc000
[0003.887] I> Copying ATF (length: 0x233b8) from 0x1fc60006c0 to 0xffd0000
[0003.894] I> Partition name: A_eks
[0003.897] I> Size of partition: 131072
[0003.900] I> Binary@ device:3/0 block-33792 (partition size: 0x20000), name: A_eks
[0003.908] I> Ratchet: [A_eks]: sw (BCH): 0, hw (BCT): 0
[0003.913] I> BL32/Hafnium: Authentication Finalize Done
[0003.918] I> Binary BL32/Hafnium loaded successfully at 0x1fc6300658
[0003.932] I> Copying Hafnium (length: 0x33598) from 0x1fc63006e0 to 0x1fdf010000
[0003.932] I> Copying Hafnium DTB (length: 0xf94) from 0x1fc6333c78 to 0x1fe0e10000
[0003.939] I> Partition name: A_sec-partition
[0003.943] I> Size of partition: 2097152
[0003.947] I> Binary@ device:3/0 block-45568 (partition size: 0x200000), name: A_sec-partition
[0003.955] I> max_binary_size for Secure Partition = 0x400000
[0003.961] I> Ratchet: [A_sec-partition]: sw (BCH): 0, hw (BCT): 0
[0003.966] I> eks: Authentication Finalize Done
[0003.971] I> Binary eks loaded successfully at 0x1fc6000800
[0003.976] I> sec-partition : oem authentication of header done
[0003.982] I> sec-partition : meta-blob integrity check is success.
[0003.991] I> sec-partition : will be decompressed at 0x1fc6020820
[0003.994] I> version 1 Bin 1 BCheckSum 0 content_size 0 Content ChkSum 1 reserved_00 0
[0004.002] I> Reserved10 0 BlockMaxSize 5 Reserved11 0
[0004.023] I> sec-partition : decompressed to 2719808 bytes
[0004.026] I> sec-partition: plain binary integrity check is success
[0004.026] I> sec-partition: Authentication Finalize Done
[0004.026] I> Binary sec-partition loaded successfully at 0x1fc6020820
[0004.033] I> NVRNG: Health check success
[0004.036] I> NVRNG: Health check success
[0004.040] I> Task: Prepare Hafnium params
[0004.044] I> haf_params = 0x1fdf000000
[0004.047] I> BL32 EP param-hdr (type: 0x1, version: 0x1, size: 0x58, attr: 0x0)
[0004.054] I> BL32 EP PC: 0x1fdf010000
[0004.058] I> BL32 EP SPSR: 0x3c9
[0004.061] I> BL32 EP X0: 0x1fe0e10000
[0004.065] I> BL32 EP X1: 0x0
[0004.068] I> BL32 EP X2: 0x1fdf000000
[0004.072] I> BL32 EP X3: 0xcafebabe
[0004.075] I> BL32 EP X4: 0x0
[0004.078] I> BL32 EP X5: 0x0
[0004.081] I> BL32 EP X6: 0x0
[0004.083] I> BL32 EP X7: 0x0
[0004.087] I> PC INFO from epinfo = 0x14000010
[0004.091] I> BL32 IMG param-hdr (type: 0x0, version: 0x0, size: 0x0, attr: 0x0)
[0004.098] I> BL32 IMG image base: 0x1fdf010000
[0004.102] I> BL32 IMG image size: 0x33598
[0004.106] I> Task: Prepare ATF params
[0004.109] I> atf params @ 0x1fe3620000
[0004.113] I> trng buff @ 0x1fe3621000
[0004.117] I> NVRNG: Health check success
[0004.121] I> NVRNG: Health check success
[0004.124] I> Skipping 'tid-table-addr' update in ATF DTB
[0004.129] I> RIST OEM pub keys 0x1fe3622000, cust vals 0x1fe3622300
[0004.135] I> misc_profiling 200000@2004400000
[0004.140] I> BL31 param-hdr (type: 0x0, version: 0x0, size: 0x0, attr: 0x0)
[0004.146] I> BL31 IMG param-hdr (type: 0x0, version: 0x0, size: 0x0, attr: 0x0)
[0004.154] I> Task: OEM SC7 context save
[0004.157] W> DRAM bad page list is empty!
[0004.167] I> OEM_SC7 context data saved
[0004.167] I> Task: Apply HWPM config
[0004.168] I> Skipping - not in ODM prod mode
[0004.172] I> Task: DRAM ECC update prl
[0004.176] I> Task: Storage device deinit
[0004.179] I> Task: Program OEM firewalls - late boot
[0004.185] I> OEM firewalls configured
[0004.188] I> Task: SMMU restore
[0004.191] I> Task: Program GICv3 registers
[0004.195] I> Task: Audit firewall settings
[0004.199] I> Task: Trigger tsec mailbox for PSC-fw exit
[0004.204] I> Sending opcode 0x54534543 to psc
[0004.213] I> Received ACK from psc
[0004.213] I> Task: Ratchet update
[0004.214] W> Skip ratchet update - OPTIN fuse not set
[0004.219] I> Ratchet: [BR-BCT ]: active: 0, MIN(in-active): 0, hw: 0
[0004.226] I> Ratchet: [MB1 ]: active: 0, MIN(in-active): 0, hw: 0
[0004.232] I> Ratchet: [PSC-BL ]: active: 0, MIN(in-act��INFO��ive)��: EN��: 0,��D TA�� hw:��SK:T�� 0
��[000��
��MB1-��INF��4.23��O: e��8] I��nter��> Ra�� idl��tche��e ta��t: [��sk.
��BCT ]: active: 0, MIN(in-active): 0, hw: 0
[0004.245] I> Ratchet: [HPSE-BCT ]: active: 0, MIN(in-active): 0, hw: 0
[0004.257] I> Ratchet: [HPSE-BL ]: active: 0, MIN(in-active): 0, hw: 0
[0004.266] I> Ratchet: [HPSE-FW ]: active: 0, MIN(in-active): 0, hw: 0
[0004.272] I> Ratchet: [TSEC ]: active: 0, MIN(in-active): 0, hw: 0
[0004.278] I> Ratchet: [IGPU-FW ]: active: 0, MIN(in-active): 0, hw: 0
[0004.285] I> Ratchet: [IGPU-ACR ]: active: 0, MIN(in-active): 0, hw: 0
[0004.291] I> Ratchet: [SB-BCT ]: active: 0, MIN(in-active): 0, hw: 0
[0004.297] I> Ratchet: [SB-BL ]: active: 0, MIN(in-active): 0, hw: 0
[0004.304] I> Ratchet: [SB-FW ]: active: 0, MIN(in-active): 0, hw: 0
[0004.310] I> Ratchet: [BPMP-FW ]: active: 0, MIN(in-active): 0, hw: 0
[0004.317] I> Ratchet: [PSC-FW ]: active: 0, MIN(in-active): 0, hw: 0
[0004.323] I> Ratchet: [KIST-FW ]: active: 0, MIN(in-active): 0, hw: 0
[0004.329] I> Ratchet: [XUSB-FW ]: active: 0, MIN(in-active): 0, hw: 0
[0004.336] I>
[0004.337] I> Task: Compute cpubl params hash
[0004.341] I> Task: Lock fusing
[0004.344] I> Task: Disable Vdd fuse rail
[0004.348] I> Task: Disable CCPLEX WDT
[0004.351] I> MB2 finished
NOTICE: BL31: lts-v2.8.16(release):3ea5ab4
NOTICE: BL31: Built : 15:31:46, Dec 30 2025
INFO: Initializing Hafnium (SPMC)
INFO: text: 0x1fdf010000 - 0x1fdf039000
INFO: rodata: 0x1fdf039000 - 0x1fdf043000
INFO: data: 0x1fdf043000 - 0x1fdf6b1000
INFO: stacks: 0x1fdf6c0000 - 0x1fdf6f8000
INFO: Supported bits in physical address: 48
INFO: Stage 2 has 4 page table levels with 1 pages at the root.
INFO: Stage 1 has 4 page table levels with 1 pages at the root.
INFO: Memory range: 0x80000000 - 0x800000ff
S Memory ranges:
[80000000 - 80000100 (1 pages)]
NS Memory ranges:
WARNING: Empty memory region defined with base address: 0x1fe2e1f000.
WARNING: Empty memory region defined with base address: 0x1fe2e1f000.
WARNING: Empty memory region defined with base address: 0x1fe2e1f000.
WARNING: Missing NS memory ranges, default to 1TB.
INFO: Loading VM id 0x8001: optee.
INFO: Loaded with 28 vCPUs, entry at 0x1fe0e20000.
INFO: Loading VM id 0x8002: standalonemm.
WARNING: Memory region security state ignored for S-EL1 partitions.
WARNING: Memory region security state ignored for S-EL1 partitions.
WARNING: Memory region security state ignored for S-EL1 partitions.
INFO: Loaded with 1 vCPUs, entry at 0x1fe2e20000.
INFO: Hafnium initialisation completed
VM 8001: I/TC:
VM 8001: I/TC: No non-secure external DT
VM 8001: I/TC: manifest DT found
VM 8001: I/TC: Switching console to device: /ffa-console
VM 8001: I/TC: OP-TEE version: 4.4 (gcc version 13.2.0 (crosstool-NG 1.26.0)) #2 Tue Dec 30 23:37:02 UTC 2025 aarch64
VM 8001: I/TC: WARNING: This OP-TEE configuration might be insecure!
VM 8001: I/TC: WARNING: Please check https://optee.readthedocs.io/en/latest/architecture/porting_guidelines.html
VM 8001: I/TC: Primary CPU initializing
VM 8001: I/TC: Test TZ root key is being used. This is insecure for shipping products!
VM 8001: I/TC: fTPM ID is not enabled.
VM 8001: I/TC: ftpm-helper PTA: fTPM DT or EKB is not available. fTPM provisioning is not supported.
VM 8001: I/TC: Primary CPU switching to normal world boot
NOTICE: Initialized VM: 0x8001, boot_order: 0
VM 8002: (version 38.4.0-gcid-43443517 2025-12-30T23:33:22+00:00)
VM 8001: I/TC: WARNING: Test UEFI variable auth key is being used !
VM 8001: I/TC: WARNING: UEFI variable protection is not fully enabled !
VM 8002: Boot Complete
NOTICE: Initialized VM: 0x8002, boot_order: 1
NOTICE: Finished initializing all VMs.
NOTICE: BL31 Boot Complete
��t26x_general UEFI firmware (version 38.4.0-gcid-43443517 built on 2025-12-30T23:33:08+00:00)
��INFO: END TASK:PCIE
INFO: enter idle task.
INFO: END TASK:MB��
INFO: enter idle task.
INFO: END TASK:MB��
INFO: enter idle task.
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