Re: [PATCH v5 1/3] efi/x86: skip efi_arch_mem_reserve() in case of kexec.

From: Borislav Petkov
Date: Fri Apr 26 2024 - 10:22:08 EST


On Wed, Apr 24, 2024 at 04:17:09PM -0500, Kalra, Ashish wrote:
> With SNP guest kexec and during nested guest kexec, observe the following
> efi memmap corruption :

Before we delve any deeper here, lemme make sure I understand this
correctly:

* You're in a SNP guest and you're kexec-ing into a new kernel?

or

* You have a plain hypervisor which runs a non-CoCo guest and that guest
is a hypervisor too and it starts a level 2 guest and *in* *that* level
2 guest you kexec a kernel?

--
Regards/Gruss,
Boris.

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