New subject: SMMU Configuration

30 Nov 2022


      Hi,
1/ About:
VERBOSE: SMMUv3 Total StreamTable entries: 16777216
I wonder if this is a realistic value suggesting SMMU_S_IDR1.S_SIDSIZE=24?
In which case the stream table size would grow up to 1GB.
Can you confirm this parameter value on your platform?
Also can you confirm the smmu base address on your platform, as it may be that hafnium probes the smmu io space from a wrong address?
2/ can you tell which commit hash you're using for hafnium?
We've observed random stack overflows corrupting data sections (in this case the smmu static data) because of stack size limitation.
Can you confirm you have this change in your tree:
https://git.trustedfirmware.org/hafnium/hafnium.git/commit/?id=64b421e19a061...
Thanks, Olivier.
________________________________
From: 梅建强(禹夜) meijianqiang.mjq@alibaba-inc.com
Sent: 28 November 2022 10:48
To: Olivier Deprez Olivier.Deprez@arm.com
Cc: 赵哲(为哲) weizhe.zz@alibaba-inc.com
Subject: SMMU Configuration
Hi,
 when I enabled SMMU by set the config file as follows：
aarch64_toolchains("secure_aem_v8a_fvp") {
  cpu = "cortex-a57"
  origin_address = "0x06000000"
  boot_flow = "//src/boot_flow:spmc"
  console = "//src/arch/aarch64/pl011"
  iommu = "//src/arch/aarch64/arm_smmuv3"
  gic_version = 3
  gicd_base_address = "0x2e000000"
  gicr_base_address = "0x2e140000"
  gicr_frames = 8
  heap_pages = 100000
  max_cpus = 8
  max_vms = 16
  # branch_protection = "standard"
  toolchain_args = {
    plat_ffa = "//src/arch/aarch64/plat/ffa:spmc"
    plat_psci = "//src/arch/aarch64/plat/psci:spmc"
    plat_interrupts = "//src/arch/aarch64/plat/interrupts:gicv3"
    plat_prng = "//src/arch/aarch64/plat/prng:prng"
    secure_world = "1"
    pl011_base_address = "0x2A400000"
    smmu_base_address = "0x3FC00000"
    smmu_memory_size = "0x400000"
    # enable_mte = "1"
    plat_log_level = "LOG_LEVEL_VERBOSE"
  }
}
I encountered a problem，The log is as follows， there is not enough memory for init  SMMU， I have define “heap_pages to 100000”， but it's still not enough，Do you have any suggestions?
VERBOSE: SMMUv3 mapped at 000000003fc00000
VERBOSE: SMMUv3: write to (S_)GBPA
VERBOSE: SMMUv3: write to (S_)CR0
VERBOSE: SMMUv3: Input Addr: 48-bits, Output Addr: 48-bits
VERBOSE: SMMUv3: Total CMDQ entries: 524288
VERBOSE: SMMUv3: Memory allocated at 0000008800043000 for CMDQ
VERBOSE: SMMUv3: write to (S_)CMDQ_BASE
VERBOSE: SMMUv3: write to (S_)CMDQ_CONS, (S_)CMDQ_PROD
VERBOSE: SMMUv3: Total EVTQ entries: 524288
VERBOSE: SMMUv3: Memory allocated at 0000008800844000 for EVTQ
VERBOSE: SMMUv3: write to (S_)EVTQ_BASE
VERBOSE: SMMUv3: write to (S_)EVTQ_PROD,(S_)EVTQ_CONS
VERBOSE: SMMUv3 Total StreamTable entries: 16777216
ERROR: SMMUv3: Could not allocate memory for stream table entries
ERROR: SMMUv3: Failed to initialize driver
Panic: Could not initialize IOMMUs.

Re: SMMU Configuration