On Mon, Jan 29, 2018 at 02:08:45PM +0300, Kirill A. Shutemov wrote: > I've missed that we need to change relocate_kernel() to set CR4.LA57 > flag if the kernel has 5-level paging enabled. > > I avoided to use ifdef CONFIG_X86_5LEVEL here and inferred if we need to > enabled 5-level paging from previous CR4 value. This way the code is > ready for boot-time switching between paging modes. Forgive me if I'm missing something ... can you kexec a 5-level kernel from a 4-level kernel or vice versa? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
