On Mon, Apr 25, 2022 at 06:39:28AM +0300, Kirill A. Shutemov wrote: > The firmware will pre-accept the memory used to run the stub. But, the > stub is responsible for accepting the memory into which it decompresses > the main kernel. Accept memory just before decompression starts. > > The stub is also responsible for choosing a physical address in which to > place the decompressed kernel image. The KASLR mechanism will randomize > this physical address. Since the unaccepted memory region is relatively > small, KASLR would be quite ineffective if it only used the pre-accepted > area (EFI_CONVENTIONAL_MEMORY). Ensure that KASLR randomizes among the > entire physical address space by also including EFI_UNACCEPTED_MEMOR nit: s/EFI_UNACCEPTED_MEMOR/EFI_UNACCEPTED_MEMORY./ [snip]
