VOID NTAPI INIT_FUNCTION MiAddDescriptorToDatabase	(	PFN_NUMBER	BasePage,
		PFN_NUMBER	PageCount,
		TYPE_OF_MEMORY	MemoryType
	)

Definition at line 527 of file init.c.

Referenced by MiBuildPfnDatabase().

{
    PMMPFN Pfn;

    ASSERT(!MiIsMemoryTypeInvisible(MemoryType));

    /* Check if the memory is free */
    if (MiIsMemoryTypeFree(MemoryType))
    {
        /* Get the last pfn of this descriptor. Note we loop backwards */
        Pfn = &MmPfnDatabase[BasePage + PageCount - 1];

        /* Loop all pages */
        while (PageCount--)
        {
            /* Add it to the free list */
            Pfn->u3.e1.CacheAttribute = MiNonCached;
            MiInsertPageInFreeList(BasePage + PageCount);

            /* Go to the previous page */
            Pfn--;
        }
    }
    else if (MemoryType == LoaderXIPRom)
    {
        Pfn = &MmPfnDatabase[BasePage];
        while (PageCount--)
        {
            /* Make it a pseudo-I/O ROM mapping */
            Pfn->PteAddress = 0;
            Pfn->u1.Flink = 0;
            Pfn->u2.ShareCount = 0;
            Pfn->u3.e1.PageLocation = 0;
            Pfn->u3.e1.CacheAttribute = MiNonCached;
            Pfn->u3.e1.Rom = 1;
            Pfn->u3.e1.PrototypePte = 1;
            Pfn->u3.e2.ReferenceCount = 0;
            Pfn->u4.InPageError = 0;
            Pfn->u4.PteFrame = 0;

            /* Advance one */
            Pfn++;
        }
    }
    else if (MemoryType == LoaderBad)
    {
        // FIXME: later
        ASSERT(FALSE);
    }
    else
    {
        /* For now skip it */
        DbgPrint("Skipping BasePage=0x%lx, PageCount=0x%lx, MemoryType=%lx\n",
                 BasePage, PageCount, MemoryType);
        Pfn = &MmPfnDatabase[BasePage];
        while (PageCount--)
        {
            /* Make an active PFN */
            Pfn->u3.e1.PageLocation = ActiveAndValid;

            /* Advance one */
            Pfn++;
        }
    }
}

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