Segmentation.h

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#pragma once

//                   Constants                  //

#define USE_DEFAULT_OS_GDT_AS_HOST_GDT FALSE

#define HOST_GDT_DESCRIPTOR_COUNT 10 // approximately

#define HOST_INTERRUPT_STACK_SIZE 4 * PAGE_SIZE

#define USE_INTERRUPT_STACK_TABLE FALSE

//                  Functions                   //
 
_Success_(return)
BOOLEAN
SegmentGetDescriptor(_In_ PUCHAR                 GdtBase,
                     _In_ UINT16                 Selector,
                     _Out_ PVMX_SEGMENT_SELECTOR SegmentSelector);
 
VOID
SegmentPrepareHostGdt(
    SEGMENT_DESCRIPTOR_32 * OsGdtBase,
    UINT16                  OsGdtLimit,
    UINT16                  TrSelector,
    UINT64                  HostStack,
    SEGMENT_DESCRIPTOR_32 * AllocatedHostGdt,
    TASK_STATE_SEGMENT_64 * AllocatedHostTss);