[edk2-devel] [PATCH v10 30/32] OvmfPkg/PlatformPei: mark cpuid and secrets memory reserved in EFI map

[Gerd Hoffmann]

On Tue, Oct 19, 2021 at 02:39:32PM -0500, Brijesh Singh wrote:
> When SEV-SNP is active, the CPUID and Secrets memory range contains the
> information that is used during the VM boot. The content need to be persist
> across the kexec boot. Mark the memory range as Reserved in the EFI map
> so that guest OS or firmware does not use the range as a system RAM.
> 
> Cc: Michael Roth <michael.roth at amd.com>
> Cc: James Bottomley <jejb at linux.ibm.com>
> Cc: Min Xu <min.m.xu at intel.com>
> Cc: Jiewen Yao <jiewen.yao at intel.com>
> Cc: Tom Lendacky <thomas.lendacky at amd.com>
> Cc: Jordan Justen <jordan.l.justen at intel.com>
> Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
> Cc: Erdem Aktas <erdemaktas at google.com>
> Cc: Gerd Hoffmann <kraxel at redhat.com>
> Signed-off-by: Brijesh Singh <brijesh.singh at amd.com>

Acked-by: Gerd Hoffmann <kraxel at redhat.com>



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