Function WritePhysicalMemory

Kernel-Bridge/API/MemoryUtils.cpp:419–446

    _IRQL_requires_max_(APC_LEVEL)
    BOOLEAN WritePhysicalMemory(OUT PVOID64 PhysicalAddress, IN PVOID Buffer, SIZE_T Length, MEMORY_CACHING_TYPE CachingType) {
        BOOLEAN Status;
        PVOID VirtualAddress = GetVirtualForPhysical(PhysicalAddress);
        if (VirtualAddress) {
            __try {
                VirtualMemory::CopyMemory(VirtualAddress, Buffer, Length);
                Status = TRUE;
            } __except (EXCEPTION_EXECUTE_HANDLER) {
                Status = FALSE;
            }
        } else {
            Status = FALSE;
        }

        if (!Status) {
            PVOID MappedMemory = MapPhysicalMemory(PhysicalAddress, Length, CachingType);
            if (!MappedMemory) return FALSE;
            __try {
                VirtualMemory::CopyMemory(MappedMemory, Buffer, Length);
                Status = TRUE;
            } __except (EXCEPTION_EXECUTE_HANDLER) {
                Status = FALSE;
            }
            UnmapPhysicalMemory(MappedMemory, Length);
        }

        return Status;
    }
}

namespace Mdl {