Re: [PATCH v6 1/2] x86/sev: Make sure IRQs are disabled while GHCB is active

From: Joerg Roedel
Date: Fri Jun 18 2021 - 04:18:00 EST


On Thu, Jun 17, 2021 at 05:38:46PM +0200, Peter Zijlstra wrote:
> I'm getting (with all of v6.1 applied):
>
> vmlinux.o: warning: objtool: __sev_es_nmi_complete()+0x1bf: call to panic() leaves .noinstr.text section
>
> $ ./scripts/faddr2line defconfig-build/vmlinux __sev_es_nmi_complete+0x1bf
> __sev_es_nmi_complete+0x1bf/0x1d0:
> __sev_get_ghcb at arch/x86/kernel/sev.c:223
> (inlined by) __sev_es_nmi_complete at arch/x86/kernel/sev.c:519

I see where this is coming from, but can't create the same warning. I
did run 'objtool check -n vmlinux'. Is there more to do to get the full
check?

Regards,

Joerg