Linux Kernel Memory Map. linux中的memory management和page mapping_weixin_34183910的博客CSDN博客 416 | Chapter 15: Memory Mapping and DMA neededforthekernelcodeitself.Asaresult,x86-basedLinuxsystemscouldwork with a maximum of a little under 1 GB of physical memory. In the Linux kernel it is possible to map a kernel address space to a user address space
Understanding of Linux virtual memory and physical memory Programmer Sought from programmersought.com
The allocated pages are mapped to the virtual memory space behind the 1:1 mapped physical memory in the kernel space The flags argument may be one of the GFP flags defined at include/linux/gfp.h and described at Memory Management APIs
Understanding of Linux virtual memory and physical memory Programmer Sought
This includes implementation of virtual memory and demand paging, memory allocation both for kernel internal structures and user space programs, mapping of files into processes address space and many other cool things. This flag is supported only for files supporting DAX (direct mapping of persistent memory). MAP_SYNC (since Linux 4.15) This flag is available only with the MAP_SHARED_VALIDATE mapping type; mappings of type MAP_SHARED will silently ignore this flag
Memory mapping — The Linux Kernel documentation. The direct mapping covers all memory in the system up to the highest memory address (this means in some cases it can also include PCI memory holes) Memory mapping is one of the most interesting features of a Unix system
Linux Performance in Cloud How Linux Kernel Manages Application Memory. This includes implementation of virtual memory and demand paging, memory allocation both for kernel internal structures and user space programs, mapping of files into processes address space and many other cool things. Behind every vmalloc'ed area there is at least one unmapped page.