Changes

====Secure Monitor====

====Secure Monitor====

The [[Memory_layout|Memory layout]] was changed significantly:

The [[Memory_layout|Memory layout]] was changed significantly:

* .text, .rodata, and .data are now separate sections, instead of being mapped RWX.

* .text, .rodata, and .data are now separate sections, mapped with correct permissions (RX, RO, RW, respectively), instead of being mapped RWX.

* Physical layout in TZRAM changed significantly, with pk2ldr being in low TZRAM instead of high TZRAM.

* Physical layout in TZRAM changed significantly, with pk2ldr being in low TZRAM instead of high TZRAM, etc.

In addition, there were changes to the [[SMC]] interface:

In addition, there were changes to the [[SMC]] interface:

** All keys which were previously imported with specific keys now first call smcEncryptRsaPrivateKeyForImport with the appopriate enum member to get a sealed copy of the RSA key, then smcDecryptOrImportRsaPrivateKey to import/unseal the key when needed.

** All keys which were previously imported with specific keys now first call smcEncryptRsaPrivateKeyForImport with the appopriate enum member to get a sealed copy of the RSA key, then smcDecryptOrImportRsaPrivateKey to import/unseal the key when needed.

* smcGetConfig was extended with two new config items:

* smcGetConfig was extended with two new config items:

* -GetConfig(16) now does the following, which seems to check whether the Switch is running on a Tegra 210:

** GetConfig(16), which seems to check whether the Switch is running on a Tegra 210:

     return (FUSE_RESERVED_ODM4 & 0x800) &&  FUSE_RESERVED_ODM0 == 0x8E61ECAE &&  FUSE_RESERVED_ODM1  == 0xF2BA3BB2 ?  (FUSE_RESERVED_ODM2 & 0x1F) : 0

     return (FUSE_RESERVED_ODM4 & 0x800) &&  FUSE_RESERVED_ODM0 == 0x8E61ECAE &&  FUSE_RESERVED_ODM1  == 0xF2BA3BB2 ?  (FUSE_RESERVED_ODM2 & 0x1F) : 0

* Getconfig(17) now checks whether package2 is plaintext or encrypted.

** Getconfig(17), which returns the Package2 meta fields (first 4 words) if package2 is plaintext.

<fill in the rest later>

<fill in the rest later>