-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Dov Murik
Sent: Tuesday, January 4, 2022 3:17 PM
To: devel@edk2.groups.io
Cc: Dov Murik <dovmurik@...>; Ard Biesheuvel
<ardb+tianocore@...>; Justen, Jordan L <jordan.l.justen@...>;
Gerd Hoffmann <kraxel@...>; Brijesh Singh <brijesh.singh@...>;
Aktas, Erdem <erdemaktas@...>; James Bottomley
<jejb@...>; Yao, Jiewen <jiewen.yao@...>; Xu, Min M
<min.m.xu@...>; Tom Lendacky <thomas.lendacky@...>; Tobin
Feldman-Fitzthum <tobin@...>; Yao, Jiewen <jiewen.yao@...>
Subject: [edk2-devel] [PATCH RESEND] OvmfPkg/AmdSev/SecretPei: Mark SEV
launch secret area as reserved

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@...>
Cc: Jordan Justen <jordan.l.justen@...>
Cc: Gerd Hoffmann <kraxel@...>
Cc: Brijesh Singh <brijesh.singh@...>
Cc: Erdem Aktas <erdemaktas@...>
Cc: James Bottomley <jejb@...>
Cc: Jiewen Yao <jiewen.yao@...>
Cc: Min Xu <min.m.xu@...>
Cc: Tom Lendacky <thomas.lendacky@...>
Cc: Tobin Feldman-Fitzthum <tobin@...>
Signed-off-by: Dov Murik <dovmurik@...>
Acked-by: Gerd Hoffmann <kraxel@...>
Acked-by: Jiewen Yao <Jiewen.Yao@...>
Reviewed-by: Brijesh Singh <brijesh.singh@...>

---

Resending with Acked-by and Reviewed-by tags.
Please let me know if there's anything else missing.
Thanks,
-Dov

---
OvmfPkg/AmdSev/SecretPei/SecretPei.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/OvmfPkg/AmdSev/SecretPei/SecretPei.c
b/OvmfPkg/AmdSev/SecretPei/SecretPei.c
index db94c26b54d1..6bf1a55dea64 100644
--- a/OvmfPkg/AmdSev/SecretPei/SecretPei.c
+++ b/OvmfPkg/AmdSev/SecretPei/SecretPei.c
@@ -19,7 +19,7 @@ InitializeSecretPei (
BuildMemoryAllocationHob (

PcdGet32 (PcdSevLaunchSecretBase),

ALIGN_VALUE (PcdGet32 (PcdSevLaunchSecretSize), EFI_PAGE_SIZE),

- EfiBootServicesData

+ EfiReservedMemoryType

);



return EFI_SUCCESS;

--
2.25.1



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