KernVMAlloc

This is the equivalent of the DevHlp_VMAlloc function.

Synopsis

APIRET APIENTRY KernVMAlloc(ULONG size, ULONG flags, PVOID* linaddr, PVOID* physaddr, PSHORT sel);

Parameters

size - input

Number of bytes to allocate.

flags - input

One or more of the following flags. See DevHlp_VMAlloc docs for details.

KEE_VMA_16MB       allocate memory from below 16MB 
KEE_VMA_FIXED      allocate memory that won't be swapped out 
KEE_VMA_SWAP       allocate memory that is swappable 
KEE_VMA_CONTIG     allocate contiguous physical memory pages 
KEE_VMA_PHYS       allocate physical memory (pass address in physaddr argument) 
KEE_VMA_PROCESS    allocate memory in the process address space. 
KEE_VMA_SGSCONT    register memory under screen group control 
KEE_VMA_GETSEL     return a GDT selector for the allocated memory.
                   This option exists also in DevHlp_VMAlloc (undocumented). 
KEE_VMA_RESERVE    Don't commit the allocated memory. 
KEE_VMA_SHARED     allocate memory that is shareable 
KEE_VMA_USEHIGHMEM allocate memory from above 16MB. 

linaddr - input

address of a variable to receive the linear address of the memory.

physaddr - input

address of a variable that contains the physical address of the memory.

sel - input

address of a variable to receive the allocated GDT selector, when KEE_VMA_GETSEL is set.