ULONG_PTR NTAPI INIT_FUNCTION Ki386EnableGlobalPage ( IN volatile ULONG_PTR Context )

Definition at line 20 of file patpge.c.

{
    volatile PLONG Count = (PLONG)Context;
    ULONG Cr4, Cr3;

    /* Disable interrupts */
    _disable();

    /* Decrease CPU Count and loop until it's reached 0 */
    do {InterlockedDecrement(Count);} while (!*Count);

    /* Now check if this is the Boot CPU */
    if (!KeGetPcr()->Number)
    {
        /* It is.FIXME: Patch KeFlushCurrentTb */
    }

    /* Now get CR4 and make sure PGE is masked out */
    Cr4 = __readcr4();
    __writecr4(Cr4 & ~CR4_PGE);

    /* Flush the TLB */
    Cr3 = __readcr3();
    __writecr3(Cr3);

    /* Now enable PGE */
    DPRINT("Global page support detected but not yet taken advantage of\n");
    //__writecr4(Cr4 | CR4_PGE);

    /* Restore interrupts */
    _enable();
    return 0;
}

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