On Sat, Nov 17, 2012 at 12:04 PM, Yinghai Lu <yinghai at kernel.org> wrote: > On Sat, Nov 17, 2012 at 12:25 AM, Eric W. Biederman > <ebiederm at xmission.com> wrote: > > then for setup data (boot param) and command line, we have to set extra ident > mapping for them in kernel arch/x86/kernel/head_64.S > find the solution for this one: We don't need to set ident map for boot_param and command line in head_64.S as we already get arch/x86/kernel/head64.c, and could use early_ioremap to access and copy them out. Now, will check if can put purgatory above 4g. Thanks Yinghai
