Re: [RFC PATCH] x86: Make sure verify_cpu has a good stack
From: Yinghai Lu
Date: Wed Mar 02 2016 - 19:13:08 EST
On Wed, Mar 2, 2016 at 2:32 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
>
> I'm trying to think of any reason why we couldn't simply have a symbol at the top of the initial stack? Then a simple leaq would suffice; this is for the BSP after all.
Why do we need to call verify_cpu in arch/x86/kernel/head_64.S aka the
vmlinux again ?
Is that already called in arch/x86/boot/compressed/head_64.S?
Or Tom is using 64bit bootloader that use vmlinux instead of bzImage?
Thanks
Yinghai