From: Brijesh Singh <brijesh.singh@amd.com>
To: edk2-devel@lists.01.org
Cc: Thomas.Lendacky@amd.com, lersek@redhat.com,
jordan.l.justen@intel.com, leo.duran@amd.com,
Brijesh Singh <brijesh.singh@amd.com>
Subject: [PATCH v8 11/16] OvmfPkg/QemuFwCfgLib: Implement SEV internal function for SEC phase
Date: Thu, 6 Jul 2017 10:29:49 -0400 [thread overview]
Message-ID: <1499351394-1175-12-git-send-email-brijesh.singh@amd.com> (raw)
In-Reply-To: <1499351394-1175-1-git-send-email-brijesh.singh@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
---
OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c | 57 ++++++++++++++++++++
1 file changed, 57 insertions(+)
diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c
index 465ccbe90dad..071b8d9b91d4 100644
--- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c
+++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c
@@ -6,6 +6,7 @@
Copyright (C) 2013, Red Hat, Inc.
Copyright (c) 2011 - 2013, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2017, Advanced Micro Devices. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
@@ -94,3 +95,59 @@ InternalQemuFwCfgDmaIsAvailable (
{
return FALSE;
}
+
+/**
+
+ Returns a boolean indicating whether SEV is enabled
+
+ @retval TRUE SEV is enabled
+ @retval FALSE SEV is disabled
+**/
+BOOLEAN
+InternalQemuFwCfgSevIsEnabled (
+ VOID
+ )
+{
+ //
+ // DMA is not supported in SEC phase hence SEV support is irrelevant
+ //
+ return FALSE;
+}
+
+/**
+ Allocate a bounce buffer for SEV DMA.
+
+ @param[in] NumPage Number of pages.
+ @param[out] Buffer Allocated DMA Buffer pointer
+
+**/
+VOID
+InternalQemuFwCfgSevDmaAllocateBuffer (
+ OUT VOID **Buffer,
+ IN UINT32 NumPages
+ )
+{
+ //
+ // We should never reach here
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Free the DMA buffer allocated using InternalQemuFwCfgSevDmaAllocateBuffer
+
+ @param[in] NumPage Number of pages.
+ @param[in] Buffer DMA Buffer pointer
+
+**/
+VOID
+InternalQemuFwCfgSevDmaFreeBuffer (
+ IN VOID *Buffer,
+ IN UINT32 NumPages
+ )
+{
+ //
+ // We should never reach here
+ //
+ ASSERT (FALSE);
+}
--
2.7.4
next prev parent reply other threads:[~2017-07-06 14:28 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-06 14:29 [PATCH v8 00/16] x86: Secure Encrypted Virtualization (AMD) Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 01/16] OvmfPkg/ResetVector: Set C-bit when building initial page table Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 02/16] OvmfPkg: Update dsc to use IoLib from BaseIoLibIntrinsicSev.inf Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 03/16] OvmfPkg/BaseMemcryptSevLib: Add SEV helper library Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 04/16] OvmfPkg/PlatformPei: Set memory encryption PCD when SEV is enabled Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 05/16] OvmfPkg: Add AmdSevDxe driver Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 06/16] OvmfPkg: Introduce IoMmuAbsent Protocol GUID Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 07/16] OvmfPkg: Add PlatformHasIoMmuLib Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 08/16] OvmfPkg: Add IoMmuDxe driver Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 09/16] OvmfPkg/QemuFwCfgLib: Provide Pei and Dxe specific library Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 10/16] OvmfPkg/QemuFwCfgLib: Prepare for SEV support Brijesh Singh
2017-07-06 14:29 ` Brijesh Singh [this message]
2017-07-06 14:29 ` [PATCH v8 12/16] OvmfPkg/QemuFwCfgLib: Implement SEV internal functions for PEI phase Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 13/16] OvmfPkg/QemuFwCfgLib: Implement SEV internal function for Dxe phase Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 14/16] OvmfPkg/QemuFwCfgLib: Add option to dynamic alloc FW_CFG_DMA Access Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 15/16] OvmfPkg/QemuFwCfgLib: Add SEV support Brijesh Singh
2017-07-06 14:29 ` [PATCH v8 16/16] OvmfPkg: update PciHostBridgeDxe to use PlatformHasIoMmuLib Brijesh Singh
2017-07-11 8:34 ` [PATCH v8 00/16] x86: Secure Encrypted Virtualization (AMD) Jordan Justen
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