Re: [PATCH 25/62] x86/head/64: Install boot GDT

[Joerg Roedel]

On Tue, Feb 11, 2020 at 02:29:24PM -0800, Andy Lutomirski wrote:
> On Tue, Feb 11, 2020 at 5:53 AM Joerg Roedel <joro@xxxxxxxxxx> wrote:
> > +       /* GDT loaded - switch to __KERNEL_CS so IRET works reliably */
> > +       pushq   $__KERNEL_CS
> > +       leaq    .Lon_kernel_cs(%rip), %rax
> > +       pushq   %rax
> > +       lretq
> > +
> > +.Lon_kernel_cs:
> > +       UNWIND_HINT_EMPTY
> 
> I would suggest fixing at least SS as well.

You are right, that is cleaner. Initialized DS, ES, and SS to
__KERNEL_DS here too.

Regards,

	Joerg