On Tue, Oct 3, 2017 at 8:54 PM, Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx> wrote: > Both head_32.S and head_64.S utilize the same value to initialize the > control register CR0. Also, other parts of the kernel might want to access > this initial definition (e.g., emulation code for User-Mode Instruction > Prevention uses this state to provide a sane dummy value for CR0 when > emulating the smsw instruction). Thus, relocate this definition to a > header file from which it can be conveniently accessed. Reviewed-by: Andy Lutomirski <luto@xxxxxxxxxx> with the slight caveat that I think it might be a wee bit better if UMIP emulation used a separate define UMIP_REPORTED_CR0.
