22 lines
752 B
C++
22 lines
752 B
C++
#include "user/BlueScreenDemo.h"
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#include "kernel/Globals.h"
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#include "kernel/Paging.h"
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void bluescreen_demo() {
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// Trigger Bluescreen
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kout << "Trigger Bluescreen, if you can read this it didn't work" << endl;
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// BlueScreen 1
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// asm("int $3");
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// BlueScreen 2
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unsigned int* page = pg_alloc_page();
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*page = 42;
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pg_write_protect_page(page);
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invalidate_tlb_entry(page); // If we don't invalidate after first access the write protection
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// won't work as no lookup is performed (address in tlb)
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*page = 42; // We map logical to physical 1:1 so no need to do any lookup
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// If tlb is invalidated this access produces a pagefault
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}
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