Method getRamPtr

source/kernel/kmemory.cpp:902–914

}

U8* KMemory::getRamPtr(U32 address, U32 len, bool write, bool futex) {
    U32 index = address >> K_PAGE_SHIFT;
    U32 offset = address & K_PAGE_MASK;

    if (len + offset > K_PAGE_SIZE) {
        kpanic("KMemory::getRamPtr");
    }
    U8* result = data->mmu[index].getPage()->getRamPtr(&data->mmu[index], index, write, true, offset, len);
    if (result && futex) {
        data->mmu[index].flags |= PAGE_FUTEX;
    }
    return result;
}

void KMemory::clone(KMemory* from, bool vfork) {
    // don't allow changes to the from pages while we are cloning