From: Michael Roth <michael.roth@amd.com>
To: <devel@edk2.groups.io>
Cc: Tom Lendacky <thomas.lendacky@amd.com>, "Ni, Ray" <ray.ni@intel.com>
Subject: [PATCH v3 1/4] MdePkg: Add header for SEV-SNP secrets page struct
Date: Fri, 20 May 2022 10:27:27 -0500 [thread overview]
Message-ID: <20220520152730.7924-2-michael.roth@amd.com> (raw)
In-Reply-To: <20220520152730.7924-1-michael.roth@amd.com>
This will be needed so that the AP Jump Table address can be stored for
use by the operating system later, and possibly for other things in the
future.
Signed-off-by: Michael Roth <michael.roth@amd.com>
---
MdePkg/Include/Register/Amd/SnpSecretsPage.h | 56 ++++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 MdePkg/Include/Register/Amd/SnpSecretsPage.h
diff --git a/MdePkg/Include/Register/Amd/SnpSecretsPage.h b/MdePkg/Include/Register/Amd/SnpSecretsPage.h
new file mode 100644
index 0000000000..3188459150
--- /dev/null
+++ b/MdePkg/Include/Register/Amd/SnpSecretsPage.h
@@ -0,0 +1,56 @@
+/** @file
+Definitions for AMD SEV-SNP Secrets Page
+
+Copyright (c) 2022 AMD Inc. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef SNP_SECRETS_PAGE_H_
+#define SNP_SECRETS_PAGE_H_
+
+//
+// OS-defined area of secrets page
+//
+// As defined by "SEV-ES Guest-Hypervisor Communication Block Standardization",
+// revision 2.01, section 2.7, "SEV-SNP Secrets Page".
+//
+typedef PACKED struct _SNP_SECRETS_OS_AREA {
+ UINT32 Vmpl0MsgSeqNumLo;
+ UINT32 Vmpl1MsgSeqNumLo;
+ UINT32 Vmpl2MsgSeqNumLo;
+ UINT32 Vmpl3MsgSeqNumLo;
+ UINT64 ApJumpTablePa;
+ UINT32 Vmpl0MsgSeqNumHi;
+ UINT32 Vmpl1MsgSeqNumHi;
+ UINT32 Vmpl2MsgSeqNumHi;
+ UINT32 Vmpl3MsgSeqNumHi;
+ UINT8 Reserved2[22];
+ UINT16 Version;
+ UINT8 GuestUsage[32];
+} SNP_SECRETS_OS_AREA;
+
+#define VMPCK_KEY_LEN 32
+
+//
+// SEV-SNP Secrets page
+//
+// As defined by "SEV-SNP Firmware ABI", revision 1.51, section 8.17.2.5,
+// "PAGE_TYPE_SECRETS".
+//
+typedef PACKED struct _SNP_SECRETS_PAGE {
+ UINT32 Version;
+ UINT32 ImiEn : 1,
+ Reserved : 31;
+ UINT32 Fms;
+ UINT32 Reserved2;
+ UINT8 Gosvw[16];
+ UINT8 Vmpck0[VMPCK_KEY_LEN];
+ UINT8 Vmpck1[VMPCK_KEY_LEN];
+ UINT8 Vmpck2[VMPCK_KEY_LEN];
+ UINT8 Vmpck3[VMPCK_KEY_LEN];
+ SNP_SECRETS_OS_AREA OsArea;
+ UINT8 Reserved3[3840];
+} SNP_SECRETS_PAGE;
+
+#endif
--
2.25.1
next prev parent reply other threads:[~2022-05-20 15:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-20 15:27 [PATCH v3 0/4] Fix AP Jump Table Handling for SEV-SNP Michael Roth
2022-05-20 15:27 ` Michael Roth [this message]
2022-05-20 15:27 ` [PATCH v3 2/4] MdePkg: Add PcdSevSnpSecretsAddress to export SEV-SNP secrets page Michael Roth
2022-05-20 15:27 ` [PATCH v3 3/4] OvmfPkg: Initialize the PcdSevSnpSecretsAddress PCD during PEI phase Michael Roth
2022-05-20 15:27 ` [PATCH v3 4/4] UefiCpuPkg: Store SEV-SNP AP jump table in the secrets page Michael Roth
2022-05-23 13:57 ` Lendacky, Thomas
2022-05-23 13:58 ` [PATCH v3 0/4] Fix AP Jump Table Handling for SEV-SNP Lendacky, Thomas
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