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====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.
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