OvmfPkg/Bhyve/BhyveDefines.fdf.inc | 6 ++++++ 1 file changed, 6 insertions(+)
SEC phase will throw an assertion in IsSevGuest if
PcdOvmfConfidentialComputingWorkAreaHeader doesn't match the
sizeof CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER.
Signed-off-by: Corvin Köhne <c.koehne@beckhoff.com>
---
OvmfPkg/Bhyve/BhyveDefines.fdf.inc | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/OvmfPkg/Bhyve/BhyveDefines.fdf.inc b/OvmfPkg/Bhyve/BhyveDefines.fdf.inc
index 66e0e4d270..9f01ef797c 100644
--- a/OvmfPkg/Bhyve/BhyveDefines.fdf.inc
+++ b/OvmfPkg/Bhyve/BhyveDefines.fdf.inc
@@ -82,4 +82,10 @@ SET gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize = $(BLOCK_SIZ
SET gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageFtwSpareBase = gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageFtwWorkingBase + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize
SET gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize = $(VARS_SPARE_SIZE)
+# The OVMF WorkArea contains a fixed size header followed by the actual data.
+# The size of header is accessed through a fixed PCD in the reset vector code.
+# The value need to be kept in sync with the any changes to the Confidential
+# Computing Work Area header defined in the Include/WorkArea.h
+SET gUefiOvmfPkgTokenSpaceGuid.PcdOvmfConfidentialComputingWorkAreaHeader = 4
+
DEFINE MEMFD_BASE_ADDRESS = 0x800000
--
2.11.0
Beckhoff Automation GmbH & Co. KG | Managing Director: Dipl. Phys. Hans Beckhoff Registered office: Verl, Germany | Register court: Guetersloh HRA 7075
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Hi To avoid unnecessary change in DSC/FDF, can we change default size to be 4 in DEC? gUefiOvmfPkgTokenSpaceGuid.PcdOvmfConfidentialComputingWorkAreaHeader|4|UINT32|0x51 We shall also add comment on 4 == sizeof(CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER) in OvmfPkg/Include/WorkArea.h. Thank you Yao Jiewen > -----Original Message----- > From: Corvin Köhne <c.koehne@beckhoff.com> > Sent: Wednesday, September 15, 2021 5:27 PM > To: devel@edk2.groups.io > Cc: ardb+tianocore@kernel.org; Yao, Jiewen <jiewen.yao@intel.com>; Justen, > Jordan L <jordan.l.justen@intel.com>; kraxel@redhat.com; rebecca@bsdio.com; > grehan@freebsd.org; Köhne, Corvin <c.koehne@beckhoff.com> > Subject: [PATCH] OvmfPkg/BhyvePkg: add WorkAreaHeader PCD > > SEC phase will throw an assertion in IsSevGuest if > PcdOvmfConfidentialComputingWorkAreaHeader doesn't match the > sizeof CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER. > > Signed-off-by: Corvin Köhne <c.koehne@beckhoff.com> > --- > OvmfPkg/Bhyve/BhyveDefines.fdf.inc | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/OvmfPkg/Bhyve/BhyveDefines.fdf.inc > b/OvmfPkg/Bhyve/BhyveDefines.fdf.inc > index 66e0e4d270..9f01ef797c 100644 > --- a/OvmfPkg/Bhyve/BhyveDefines.fdf.inc > +++ b/OvmfPkg/Bhyve/BhyveDefines.fdf.inc > @@ -82,4 +82,10 @@ SET > gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize = > $(BLOCK_SIZ > SET gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageFtwSpareBase = > gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageFtwWorkingBase + > gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize > SET gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize = > $(VARS_SPARE_SIZE) > > +# The OVMF WorkArea contains a fixed size header followed by the actual data. > +# The size of header is accessed through a fixed PCD in the reset vector code. > +# The value need to be kept in sync with the any changes to the Confidential > +# Computing Work Area header defined in the Include/WorkArea.h > +SET > gUefiOvmfPkgTokenSpaceGuid.PcdOvmfConfidentialComputingWorkAreaHeade > r = 4 > + > DEFINE MEMFD_BASE_ADDRESS = 0x800000 > -- > 2.11.0 > > Beckhoff Automation GmbH & Co. KG | Managing Director: Dipl. Phys. Hans > Beckhoff Registered office: Verl, Germany | Register court: Guetersloh HRA > 7075 > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#80696): https://edk2.groups.io/g/devel/message/80696 Mute This Topic: https://groups.io/mt/85623294/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
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