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From: "Min Xu" <min.m.xu@intel.com>
To: devel@edk2.groups.io
Cc: Min M Xu <min.m.xu@intel.com>,
	Erdem Aktas <erdemaktas@google.com>,
	James Bottomley <jejb@linux.ibm.com>,
	Jiewen Yao <jiewen.yao@intel.com>,
	Gerd Hoffmann <kraxel@redhat.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	Michael Roth <michael.roth@amd.com>
Subject: [PATCH V3 4/9] OvmfPkg/IntelTdx: Update tdx measurement in SEC phase
Date: Wed, 25 Jan 2023 10:23:54 +0800	[thread overview]
Message-ID: <20230125022359.1645-5-min.m.xu@intel.com> (raw)
In-Reply-To: <20230125022359.1645-1-min.m.xu@intel.com>

From: Min M Xu <min.m.xu@intel.com>

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4243

After TdxHelperLib is instroduced, the SecMain.c in IntelTdx is updated
with the new functions provided by TdxHelperLib.

Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
---
 OvmfPkg/IntelTdx/IntelTdxX64.dsc |  1 +
 OvmfPkg/IntelTdx/Sec/SecMain.c   | 17 +++++++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/OvmfPkg/IntelTdx/IntelTdxX64.dsc b/OvmfPkg/IntelTdx/IntelTdxX64.dsc
index 0f1e970fbbb3..920f1c6080d4 100644
--- a/OvmfPkg/IntelTdx/IntelTdxX64.dsc
+++ b/OvmfPkg/IntelTdx/IntelTdxX64.dsc
@@ -549,6 +549,7 @@
     <LibraryClasses>
       NULL|MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
       TpmMeasurementLib|SecurityPkg/Library/SecTpmMeasurementLib/SecTpmMeasurementLibTdx.inf
+      NULL|OvmfPkg/IntelTdx/TdxHelperLib/SecTdxHelperLib.inf
       BaseCryptLib|CryptoPkg/Library/BaseCryptLib/SecCryptLib.inf
       HashLib|SecurityPkg/Library/HashLibTdx/HashLibTdx.inf
       NULL|SecurityPkg/Library/HashInstanceLibSha384/HashInstanceLibSha384.inf
diff --git a/OvmfPkg/IntelTdx/Sec/SecMain.c b/OvmfPkg/IntelTdx/Sec/SecMain.c
index ab01ec9ab19c..ccb217b709a0 100644
--- a/OvmfPkg/IntelTdx/Sec/SecMain.c
+++ b/OvmfPkg/IntelTdx/Sec/SecMain.c
@@ -24,7 +24,7 @@
 #include <Library/LocalApicLib.h>
 #include <Library/CpuExceptionHandlerLib.h>
 #include <IndustryStandard/Tdx.h>
-#include <Library/PlatformInitLib.h>
+#include <Library/TdxHelperLib.h>
 #include <Library/CcProbeLib.h>
 #include <Library/PeilessStartupLib.h>
 
@@ -62,12 +62,25 @@ SecCoreStartupWithStack (
   volatile UINT8        *Table;
 
   if (CcProbe () == CcGuestTypeIntelTdx) {
+    //
+    // From the security perspective all the external input should be measured before
+    // it is consumed. TdHob and Configuration FV (Cfv) image are passed from VMM
+    // and should be measured here.
+    //
+    if (EFI_ERROR (TdxHelperMeasureTdHob ())) {
+      CpuDeadLoop ();
+    }
+
+    if (EFI_ERROR (TdxHelperMeasureCfvImage ())) {
+      CpuDeadLoop ();
+    }
+
     //
     // For Td guests, the memory map info is in TdHobLib. It should be processed
     // first so that the memory is accepted. Otherwise access to the unaccepted
     // memory will trigger tripple fault.
     //
-    if (ProcessTdxHobList () != EFI_SUCCESS) {
+    if (TdxHelperProcessTdHob () != EFI_SUCCESS) {
       CpuDeadLoop ();
     }
   }
-- 
2.29.2.windows.2


  parent reply	other threads:[~2023-01-25  2:24 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-25  2:23 [PATCH V3 0/9] Enable Tdx measurement in OvmfPkgX64 Min Xu
2023-01-25  2:23 ` [PATCH V3 1/9] OvmfPkg: Add Tdx measurement data structure in WorkArea Min Xu
2023-01-25  2:23 ` [PATCH V3 2/9] OvmfPkg/IntelTdx: Add TdxHelperLibNull Min Xu
2023-01-25  2:23 ` [PATCH V3 3/9] OvmfPkg/IntelTdx: Add SecTdxHelperLib Min Xu
2023-01-25 12:16   ` Gerd Hoffmann
2023-01-26  1:56     ` [edk2-devel] " Min Xu
2023-01-26  2:01       ` Yao, Jiewen
2023-01-26  2:08         ` Min Xu
2023-01-25  2:23 ` Min Xu [this message]
2023-01-25  2:23 ` [PATCH V3 5/9] OvmfPkg/TdxHelperLib: Implement TdxHelperBuildGuidHobForTdxMeasurement Min Xu
2023-01-25 12:22   ` Gerd Hoffmann
2023-01-26  1:58     ` Min Xu
2023-01-26  7:09     ` Min Xu
2023-01-26  7:50       ` Gerd Hoffmann
2023-01-25  2:23 ` [PATCH V3 6/9] OvmfPkg: Enable Tdx measurement in OvmfPkgX64 Min Xu
2023-01-25  2:23 ` [PATCH V3 7/9] OvmfPkg/IntelTdx: Add PeiTdxHelperLib Min Xu
2023-01-25  2:23 ` [PATCH V3 8/9] OvmfPkg/PlatformPei: Build GuidHob for Tdx measurement Min Xu
2023-01-25  2:23 ` [PATCH V3 9/9] OvmfPkg/TdxHelperLib: Implement TdxHelperProcessTdHob Min Xu
2023-01-25 12:24   ` Gerd Hoffmann

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