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OvmfPkg/AmdSev/SecretPei: Mark SEV launch secret area as reserved

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Mark the SEV launch secret MEMFD area as reserved, which will allow the
guest OS to use it during the lifetime of the OS, without creating
copies of the sensitive content.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Tobin Feldman-Fitzthum <tobin@linux.ibm.com>
Signed-off-by: Dov Murik <dovmurik@linux.ibm.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.Yao@intel.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
This commit is contained in:
Dov Murik
2022-01-04 15:16:40 +08:00
committed by mergify[bot]
parent 13d9e8ec98
commit 079a58276b
1 changed files with 1 additions and 1 deletions
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2
OvmfPkg/AmdSev/SecretPei/SecretPei.c
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@ -19,7 +19,7 @@ InitializeSecretPei (
BuildMemoryAllocationHob ( BuildMemoryAllocationHob (
PcdGet32 (PcdSevLaunchSecretBase), PcdGet32 (PcdSevLaunchSecretBase),
ALIGN_VALUE (PcdGet32 (PcdSevLaunchSecretSize), EFI_PAGE_SIZE), ALIGN_VALUE (PcdGet32 (PcdSevLaunchSecretSize), EFI_PAGE_SIZE),
EfiBootServicesData EfiReservedMemoryType
); );
return EFI_SUCCESS; return EFI_SUCCESS;