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exo2: implement remainder of warmboot tz code

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Michael Scire 2020-05-13 10:56:07 -07:00 • committed by SciresM
parent 97ab282351
commit ad664daea5
21 changed files with 691 additions and 17 deletions
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23
exosphere2/program/source/secmon_map.cpp
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@ -28,6 +28,17 @@ namespace ams::secmon {
InvalidateL3Entries(l3, boot_code, boot_code_size);
}
constexpr void UnmapTzramImpl(u64 *l1, u64 *l2, u64 *l3) {
/* Unmap the L3 entries corresponding to tzram. */
InvalidateL3Entries(l3, MemoryRegionPhysicalTzram.GetAddress(), MemoryRegionPhysicalTzram.GetSize());
/* Unmap the L2 entries corresponding to those L3 entries. */
InvalidateL2Entries(l2, MemoryRegionPhysicalTzramL2.GetAddress(), MemoryRegionPhysicalTzramL2.GetSize());
/* Unmap the L1 entry corresponding to to those L2 entries. */
InvalidateL1Entries(l1, MemoryRegionPhysical.GetAddress(), MemoryRegionPhysical.GetSize());
}
}
void UnmapBootCode() {
@ -49,4 +60,16 @@ namespace ams::secmon {
secmon::EnsureMappingConsistency();
}
void UnmapTzram() {
/* Get the tables. */
u64 * const l1 = MemoryRegionVirtualTzramL1PageTable.GetPointer<u64>();
u64 * const l2_l3 = MemoryRegionVirtualTzramL2L3PageTable.GetPointer<u64>();
/* Unmap. */
UnmapTzramImpl(l1, l2_l3, l2_l3);
/* Ensure the mappings are consistent. */
secmon::EnsureMappingConsistency();
}
}