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SubjectRe: [PATCH v4 2/6] x86/sev-es: Disable IRQs while GHCB is active
On Fri, Jun 11, 2021 at 04:20:36PM +0200, Joerg Roedel wrote:
> I am not a fan of this, because its easily forgotten to add
> local_irq_save()/local_irq_restore() calls around those. Yes, we can add
> irqs_disabled() assertions to the functions, but we can as well just
> disable/enable IRQs in them. Only the previous value of EFLAGS.IF needs
> to be carried from one function to the other.

Wrappers:

sev_es_get_ghcb():

local_irq_save()
__sev_es_get_ghcb()

and the reverse.

--
Regards/Gruss,
Boris.

https://people.kernel.org/tglx/notes-about-netiquette

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