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= Findings from Kernel by Z80 =
some findings i have found you can delete if want :)
 
kernel 1.76
From kernel of PS4 System Software version 1.76.
Non Volatile Storage
 
--------------------
<syntaxhighlight lang="C">
sceSblDevActVerifyCheckExpire:
sceSblDevActVerifyCheckExpire:
icc_nvs_read(0LL, 4uLL, 0x80LL, 0x68uLL, &data_ptr);
icc_nvs_read(0LL, 4uLL, 0x80LL, 0x68uLL, &data_ptr);
Line 56: Line 55:
sub_FFFFFFFF827D8E30:???
sub_FFFFFFFF827D8E30:???
icc_nvs_write(0LL, 4uLL, 0LL, 0x20uLL, &dipsw_FFFFFFFF836C0090);
icc_nvs_write(0LL, 4uLL, 0LL, 0x20uLL, &dipsw_FFFFFFFF836C0090);
</syntaxhighlight>


From kernel of PS4 System Software version 1.00 Tool (DevKit).
kernel 1.00 devkit:


<syntaxhighlight lang="C">
<pre>
sce_cam_error_put:
sce_cam_error_put:
icc_nvs_read(0, 4u, 0x100, 0x100u, (__int64)v31);
icc_nvs_read(0, 4u, 0x100, 0x100u, (__int64)v31);
icc_nvs_write(0LL, 4LL, 0x1FCLL, 4LL, &v29);
icc_nvs_write(0LL, 4LL, 0x1FCLL, 4LL, &v29);
v18 = sce_device_error_log;
v18 = sce_device_error_log;
icc_nvs_write(0LL, 4LL, (unsigned __int16)(0x28 * (v18 % 6) + 0x100), 0x28LL, v32);
icc_nvs_write(0LL, 4LL, (unsigned __int16)(0x28 * (v18 % 6) + 0x100), 0x28LL, v32);
 
</pre>
get_init_safe_mode:
 
icc_nvs_read(0, 4u, 0x20, 1u, (__int64)&v5) )
 
start_init:
 
if ( (unsigned int)icc_nvs_read(0, 4u, 0x20, 1u, (__int64)&v51) )
LABEL_43:
      panic((unsigned int)"failed to retrieve init_safe_mode", 4, v0, v1, v2, v3);
 
if ( (unsigned int)icc_nvs_read(0, 4u, 0x20, 1u, (__int64)&v51) )
        goto LABEL_43;
      if ( v51 == 0xFF )
        printf((unsigned int)"Falling back to orbis_diag...\n", 4, v0, v1, v2, v3);
      else
        printf((unsigned int)"%s is not found. trying next...\n", v52[0], v0, v1, v2, v3);
      goto LABEL_36;
 
sysctl_kern_init_safe_mode:
 
if ( (unsigned int)icc_nvs_read(0, 4u, 0x20, 1u, (__int64)&v13) )
    panic((unsigned int)"failed to retrieve init_safe_mode", 4, v5, v6, v7, v8);
 
sysctl_manumode:
 
result = icc_nvs_read(0, 4u, 0x2C00, 0x20u, (__int64)v8);
  if ( !(_DWORD)result )
  {
    if ( !(unsigned int)memcmp(v8, &sysctl_manumode_manu_mode_0xff, 0x20LL) )
 
result = icc_nvs_write(1LL, 4LL, 0x2C00LL, 0x20LL, &sysctl_manumode_manu_mode_0x00);
          if ( !(_DWORD)result )
          {
            bzero(v8, 32LL);
            result = icc_nvs_read(0, 4u, 0x2C00, 0x20u, (__int64)v8);
            if ( !(_DWORD)result )
              return 5 * (unsigned int)((unsigned int)memcmp(v8, &sysctl_manumode_manu_mode_0x00, 0x20LL) != 0);
 
lvp_configure_tccds:
 
if ( (unsigned int)(a1 - 2) < 4 || !a1 || (result = 0x16LL, a1 == 0xFF) )
  {
    v2 = icc_nvs_read(0, 4u, 0x322, 1u, (__int64)&v3);
    result = 5LL;
    if ( !v2 )
    {
      result = 0LL;
      if ( v3 != (_BYTE)a1 )
        return 5 * (unsigned int)((unsigned int)icc_nvs_write(0LL, 4LL, 0x322LL, 1LL, &v4) != 0);
</syntaxhighlight>
 
= About EAP Hdd Key =
= About EAP Hdd Key =


Line 126: Line 72:
* unk_FFFFFFFF836BC010 (0x70) <- decrypted eap_hdd_key ?
* unk_FFFFFFFF836BC010 (0x70) <- decrypted eap_hdd_key ?


<syntaxhighlight lang="C">
you have right
   v7 = icc_nvs_read(0LL, 4uLL, 0x200LL, v2, &enc_eap_key_);
   v7 = icc_nvs_read(0LL, 4uLL, 0x200LL, v2, &enc_eap_key_);
   if ( v7 ) {
   if ( v7 )
  {
     v12 = v7;
     v12 = v7;
     printf("icc_nvs_read failed: %d\n", v7, v8, v9, v10, v11, v19);
     printf("icc_nvs_read failed: %d\n", v7, v8, v9, v10, v11, v19);
Line 136: Line 83:
   v12 = &eap_key_;
   v12 = &eap_key_;
   if ( sceSblGetEAPInternalPartitionKey(&enc_eap_key_, &eap_key_) )
   if ( sceSblGetEAPInternalPartitionKey(&enc_eap_key_, &eap_key_) )
</syntaxhighlight>
 
= bank 2 =
bank2 isnt probably backup bank its accessed by sub_FFFFFFFF827D2F50:qafutkn ??? icc_nvs_read(1LL, 4uLL, 0x0a00LL, 0x190uLL, &data_ptr);
 
whole nvs storage is accesible via /dev/sflash0s0x34 and size is 49152bytes probably


= From EMC =
= From EMC =


{| class="wikitable"
<pre>
|+ Serial Flash NVS Area accessed by PS4 EMC firmware around 1.76
storage_part0_desc struc_142370 <0, 0, 0x1C4000, 0x1000, 1, 0, 0, 0>
|-
storage_part1_desc struc_142370 <1, 0x1000, 0x1C5000, 0x1000, 1, 1, 0x1CE000, 0x1CF000>
! Index !! Offset in NVS !! Offset in sflash0 !! Size !! Unknown ?read? !! Has backup ?write? !! Backup address !! ?Backup address 2? !! Notes
storage_part2_desc struc_142370 <2, 0x2000, 0x1C6000, 0x1000, 1, 0, 0, 0>
|-
storage_part3_desc struc_142370 <3, 0x3000, 0x1C7000, 0x1000, 1, 0, 0, 0>
| 0 || 0 || 0x1C4000 || 0x1000 || 1 || 0 || 0 || 0 || Per-console fixed data
storage_part4_desc struc_142370 <4, 0x4000, 0x1C8000, 0x800, 1, 0, 0, 0>
|-
storage_part5_desc struc_142370 <5, 0x4800, 0x1C8800, 0x800, 1, 0, 0, 0>
| 1 || 0x1000 || 0x1C5000 || 0x1000 || 1 || 1 || 0x1CE000 || 0x1CF000 || Logs (including statistics)
storage_part6_desc struc_142370 <6, 0x5000, 0x1C9000, 0x3000, 1, 0, 0, 0>
|-
</pre>
| 2 || 0x2000 || 0x1C6000 || 0x1000 || 1 || 0 || 0 || 0 || Unknown area
|-
| 3 || 0x3000 || 0x1C7000 || 0x1000 || 1 || 0 || 0 || 0 || pd region
|-
| 4 || 0x4000 || 0x1C8000 || 0x800 || 1 || 0 || 0 || 0 || ds region
|-
| 5 || 0x4800 || 0x1C8800 || 0x800 || 1 || 0 || 0 || 0 || cs region
|-
| 6 || 0x5000 || 0x1C9000 || 0x3000 || 1 || 0 || 0 || 0 || os region
|}
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