_PageGetAllocInfo

include vmm.inc

VMMcall _PageGetAllocInfo, <flags>

mov     [Lockable], edx     ; count of lockable pages

Returns the number of pages that can be allocated as locked or fixed memory. Uses EAX, ECX, EDX, and Flags.

• Returns the number of pages available for allocating as locked pages in the EDX register. The value returned in the EAX register is undefined. (This peculiar return convention is for Windows 3.1 compatibility.)

flags

Operation flags. Must be zero.

Virtual devices must not rely on being able to allocate all pages specified by this service. In general, virtual devices should allocate memory as needed, and not attempt to allocate all available memory.

See also _PageAllocate