Messages in this thread | | | Date | Wed, 2 Mar 2016 17:25:30 +0100 | From | Borislav Petkov <> | Subject | Re: [RFC PATCH] x86: Make sure verify_cpu has a good stack |
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On Wed, Mar 02, 2016 at 11:22:30AM -0500, Brian Gerst wrote: > This should be: movq stack_start(%rip), %rsp
No it wouldn't. That doesn't work.
> > + subq $__START_KERNEL_map, %rsp > > It would be better to add the offset to the initializer for > stack_start instead of adjusting it at runtime. That would require > moving the existing load of stack_start from the common path to the > secondary startup,
This is the BSP we're talking about - no secondary startup. We want to run verify_cpu as early as possible.
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply.
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