On Fri, Jul 24, 2020 at 06:02:54PM +0200, Joerg Roedel wrote: > From: Joerg Roedel <jroedel@xxxxxxx> > > Make sure there is a stack once the kernel runs from virual addresses. > At this stage any secondary CPU which boots will have lost its stack > because the kernel switched to a new page-table which does not map the > real-mode stack anymore. > > This is needed for handling early #VC exceptions caused by instructions > like CPUID. > > Signed-off-by: Joerg Roedel <jroedel@xxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
