Re: [RFC PATCH] x86: Make sure verify_cpu has a good stack

[Borislav Petkov]

On Wed, Mar 02, 2016 at 08:50:53PM +0100, Borislav Petkov wrote:
> But better safe than sorry.

I got this, it looks good when I'm single-stepping through it with gdb
and it boots fine in kvm. I'll run it on baremetal tomorrow:

        /*
         * Setup stack for verify_cpu(): make sure we don't clobber a valid
         * stack pointer by using temporary registers.
         */
        movq    stack_start(%rip), %rax
        movq    $__START_KERNEL_map, %rdx
        subq    %rdx, %rax
        movq    %rax, %rsp

Thanks.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.