Re: [PATCH v2 07/10] x86/entry: Vastly simplify SYSENTER TF handling

[Borislav Petkov]

On Sun, Mar 06, 2016 at 09:36:42AM -0800, Andy Lutomirski wrote:
> > ALTERNATIVE "movl TSS_sysenter_sp0(%esp), %esp", "addl $5*4, %esp",
> > X86_FEATURE_XENPV
> 
> That might work.

Yap, and as we said on IRC, KALLSYMS can be off - even if it is "if
EXPERT" so we need to think of a better way to compute start address and
size of entry_SYSENTER_32 and the _compat one.

We probably could reuse some of the ELF parsing machinery of relocs.c or
so...

-- 
Regards/Gruss,
    Boris.

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