NSKBL

NSBL is a program that performs emmc setup, base kernel module loading, etc. when vita boot

Module

The non-secure kernel bootloader contains an embedded and likely stripped version of SceSysmem, SceKernelModulemgr, SceSblSmschedProxy, SceExcpmgr, SceKernelIntrMgr, SceProcessmgr (maybe), SceSdif, SceIofilemgr (Simple version?), and some other core drivers.

How to debug NSBL

NSBL reads from sd0: instead, if a read error(?) Occurs in os0: during vita startup.

but, in order to generate os0: read errors, os0: must be damaged in some way, so there must be a way to physically recover vita.

Libraries

Known NIDs

Version	Name	World	Visibility	NID
3.60	SceKblForKernel	Non-secure	Kernel	0xD0FC2991

SceKblForKernel

SceKblForKernel_0x08E9FAEB

Version	NID
3.60	0x08E9FAEB

In 3.60 this function is at 0x510172BD

SceKblForKernel_0x13A5ABEF

Version	NID
3.60	0x13A5ABEF

In 3.60 this function is at 0x510137A9

SceKblForKernel_0x161D6FCC

Version	NID
3.60	0x161D6FCC

In 3.60 this function is at 0x510123DD

SceKblForKernel_0x1DB28F02

Version	NID
3.60	0x1DB28F02

In 3.60 this function is at 0x510123A1

SceKblForKernel_0x261F2747

Version	NID
3.60	0x261F2747

In 3.60 this function is at 0x51001321

SceKblForKernel_0x314AA770

Version	NID
3.60	0x314AA770

In 3.60 this function is at 0x510124FD

sceKblIsDEXForKernel

Version	NID
3.60	0x5945F065

In 3.60 this function is at 0x51017159

SceKblForKernel_0x6D7A1F18

Version	NID
3.60	0x6D7A1F18

In 3.60 this function is at 0x51001551

SceKblForKernel_0x752E7EEC

Version	NID
3.60	0x752E7EEC

In 3.60 this function is at 0x51013841

SceKblForKernel_0x79241ACF

Version	NID
3.60	0x79241ACF

In 3.60 this function is at 0x51001345

SceKblForKernel_0x807B4437

Version	NID
3.60	0x807B4437

In 3.60 this function is at 0x510124E5

sceKblIsVITA

Version	NID
3.60	0x838466E9

In 3.60 this function is at 0x51017299

sceKblIsCEX

Version	NID
3.60	0x8A416887

In 3.60 this function is at 0x510171B5

SceKblForKernel_0x943E7537

Version	NID
3.60	0x943E7537

In 3.60 this function is at 0x5101711D

SceKblForKernel_0x9A92436E

Version	NID
3.60	0x9A92436E

In 3.60 this function is at 0x51001571

SceKblForKernel_0x9B868276

Version	NID
3.60	0x9B868276

In 3.60 this function is at 0x51013765

SceKblForKernel_0x9F4F3F98

Version	NID
3.60	0x9F4F3F98

In 3.60 this function is at 0x51001561

SceKblForKernel_0xA7BD4417

Version	NID
3.60	0xA7BD4417

In 3.60 this function is at 0x510172A1

SceKblForKernel_0xB506A10E

Version	NID
3.60	0xB506A10E

In 3.60 this function is at 0x510147C9

SceKblForKernel_0xB6C9ACF1

Version	NID
3.60	0xB6C9ACF1

In 3.60 this function is at 0x51017139

sceKblIsGenuineDolce

Version	NID
3.60	0xB6D00D6D

In 3.60 this function is at 0x510171E5

SceKblForKernel_0xC011935A

Version	NID
3.60	0xC011935A

In 3.60 this function is at 0x51013921

sceKblIsCEXJpFat

Version	NID
3.60	0xC3DDDE15

In 3.60 this function is at 0x51017175

SceKblForKernel_0xC7B77991

Version	NID
3.60	0xC7B77991

In 3.60 this function is at 0x5101297D

sceKblCheckDipsw

Version	NID
3.60	0xC8F4DE71

In 3.60 this function is at 0x51015851

SceKblForKernel_0xCE94F329

Version	NID
3.60	0xCE94F329

some qaf function

ret = *(uint32_t *)(sysroot + 0x2D) & 1;

In 3.60 this function is at 0x51016FD1

SceKblForKernel_0xD3A516D5

Version	NID
3.60	0xD3A516D5

In 3.60 this function is at 0x510128AD

SceKblForKernel_0xDDB3A1A8

Version	NID
3.60	0xDDB3A1A8

In 3.60 this function is at 0x51003554

SceKblForKernel_0xF7AF8690

Version	NID
3.60	0xF7AF8690

In 3.60 this function is at 0x5100124D