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From e4a64ad230ff2906ec56d41b2a8dd7a0bb39a399 Mon Sep 17 00:00:00 2001
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From: Dov Murik <dovmurik@linux.ibm.com>
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Date: Tue, 4 Jan 2022 15:16:40 +0800
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Subject: [PATCH] OvmfPkg/AmdSev/SecretPei: Mark SEV launch secret area as
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reserved
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RH-Author: Pawel Polawski <None>
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RH-MergeRequest: 11: OvmfPkg/AmdSev/SecretPei: Mark SEV launch secret area as reserved
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RH-Commit: [1/1] a14d34eb204387aae3446770a0e5fb95a9283ae3 (elkoniu/edk2)
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RH-Bugzilla: 2041754
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RH-Acked-by: Oliver Steffen <None>
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Mark the SEV launch secret MEMFD area as reserved, which will allow the
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guest OS to use it during the lifetime of the OS, without creating
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copies of the sensitive content.
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Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
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Cc: Jordan Justen <jordan.l.justen@intel.com>
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Cc: Gerd Hoffmann <kraxel@redhat.com>
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Cc: Brijesh Singh <brijesh.singh@amd.com>
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Cc: Erdem Aktas <erdemaktas@google.com>
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Cc: James Bottomley <jejb@linux.ibm.com>
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Cc: Jiewen Yao <jiewen.yao@intel.com>
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Cc: Min Xu <min.m.xu@intel.com>
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Cc: Tom Lendacky <thomas.lendacky@amd.com>
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Cc: Tobin Feldman-Fitzthum <tobin@linux.ibm.com>
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Signed-off-by: Dov Murik <dovmurik@linux.ibm.com>
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Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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Acked-by: Jiewen Yao <Jiewen.Yao@intel.com>
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Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
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---
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OvmfPkg/AmdSev/SecretPei/SecretPei.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/OvmfPkg/AmdSev/SecretPei/SecretPei.c b/OvmfPkg/AmdSev/SecretPei/SecretPei.c
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index db94c26b54..6bf1a55dea 100644
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--- a/OvmfPkg/AmdSev/SecretPei/SecretPei.c
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+++ b/OvmfPkg/AmdSev/SecretPei/SecretPei.c
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@@ -19,7 +19,7 @@ InitializeSecretPei (
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BuildMemoryAllocationHob (
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PcdGet32 (PcdSevLaunchSecretBase),
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ALIGN_VALUE (PcdGet32 (PcdSevLaunchSecretSize), EFI_PAGE_SIZE),
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- EfiBootServicesData
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+ EfiReservedMemoryType
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);
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return EFI_SUCCESS;
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--
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2.27.0
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