karina
6dd68f8162
- Bootloader: reallocate memory map buffer when ExitBootServices fails, so GetMemoryMap doesn't scribble past the old allocation on retry. - vectors.S: actually store sp_el0 into the exception frame. Previously it was read into x24 and then… vanished. EL0 tasks would wake up with a corrupted stack pointer. Not great. - Serial: split hardcoded 0x09000000 into a fallback default; add SerialUpdate() so the DTB-parsed UART address actually gets used. - DTB: add bounds check on reserved[] with PMM's 3 extra slots accounted for, so malformed/overstuffed DTBs don't silently corrupt memory. - PMM.h: bump kVMMaxReservedRegions 128→256, define kPMMReservedRegionCount. - Types.h: remove `#define loop while(1)`. while(true) is fine. - Rename IOSerial* → Serial* — the IO prefix was redundant, Serial.c already lives under IO/.
33 lines
606 B
C
33 lines
606 B
C
#pragma once
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#include <Types.h>
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enum {
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kVMPageSize = 4096,
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kVMBlocksPerByte = 8,
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kVMMaxReservedRegions = 256,
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kPMMReservedRegionCount = 3,
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};
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typedef struct {
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UInt64 base;
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Size size;
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} VMMemoryRegion;
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typedef struct {
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VMMemoryRegion GICD;
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VMMemoryRegion GICC;
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} GICRegion;
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typedef struct {
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VMMemoryRegion totalRAM;
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VMMemoryRegion reserved[kVMMaxReservedRegions];
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UInt32 reservedCount;
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VMMemoryRegion UART;
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GICRegion GIC;
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} VMBootMemoryMap;
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void PMMInitialize(VMBootMemoryMap* bootMap);
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Pointer PMMAllocatePage();
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void PMMFreePage(Address address);
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