The default value of PcdEnableUnacceptedMemory should be FALSE in order
for default safe behavior. If the next started image does not yet
understand UEFI v2.9's new memory type, then it's stuck with most of its
memory inaccessible.

Cc: Gerd Hoffmann <kra...@redhat.com>
Cc: James Bottomley <j...@linux.ibm.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Tom Lendacky <thomas.lenda...@amd.com>
Cc: Ard Biesheuvel <a...@kernel.org>

Signed-off-by: Dionna Glaze <dionnagl...@google.com>
---
 OvmfPkg/AmdSev/AmdSevX64.dsc     | 1 +
 OvmfPkg/Bhyve/BhyveX64.dsc       | 2 ++
 OvmfPkg/CloudHv/CloudHvX64.dsc   | 2 ++
 OvmfPkg/IntelTdx/IntelTdxX64.dsc | 2 ++
 OvmfPkg/OvmfPkgIa32X64.dsc       | 2 ++
 OvmfPkg/OvmfPkgX64.dsc           | 2 ++
 OvmfPkg/OvmfXen.dsc              | 2 ++
 7 files changed, 13 insertions(+)

diff --git a/OvmfPkg/AmdSev/AmdSevX64.dsc b/OvmfPkg/AmdSev/AmdSevX64.dsc
index 90e8a213ef..23086748c5 100644
--- a/OvmfPkg/AmdSev/AmdSevX64.dsc
+++ b/OvmfPkg/AmdSev/AmdSevX64.dsc
@@ -526,6 +526,7 @@
 
   # Set ConfidentialComputing defaults
   gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr|0
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory|FALSE
 
 !include OvmfPkg/OvmfTpmPcds.dsc.inc
 
diff --git a/OvmfPkg/Bhyve/BhyveX64.dsc b/OvmfPkg/Bhyve/BhyveX64.dsc
index 475b88b21a..004be8b019 100644
--- a/OvmfPkg/Bhyve/BhyveX64.dsc
+++ b/OvmfPkg/Bhyve/BhyveX64.dsc
@@ -559,6 +559,8 @@
   # Set Tdx shared bit mask
   gEfiMdeModulePkgTokenSpaceGuid.PcdTdxSharedBitMask|0x0
 
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory|FALSE
+
   gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x00
 
   # MdeModulePkg resolution sets up the system display resolution
diff --git a/OvmfPkg/CloudHv/CloudHvX64.dsc b/OvmfPkg/CloudHv/CloudHvX64.dsc
index 10b16104ac..41f43a2631 100644
--- a/OvmfPkg/CloudHv/CloudHvX64.dsc
+++ b/OvmfPkg/CloudHv/CloudHvX64.dsc
@@ -618,6 +618,8 @@
   # Set Tdx shared bit mask
   gEfiMdeModulePkgTokenSpaceGuid.PcdTdxSharedBitMask|0x0
 
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory|FALSE
+
   # Set SEV-ES defaults
   gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbSize|0
diff --git a/OvmfPkg/IntelTdx/IntelTdxX64.dsc b/OvmfPkg/IntelTdx/IntelTdxX64.dsc
index c0c1a15b09..55b6a2a845 100644
--- a/OvmfPkg/IntelTdx/IntelTdxX64.dsc
+++ b/OvmfPkg/IntelTdx/IntelTdxX64.dsc
@@ -514,6 +514,8 @@
   # Set Tdx shared bit mask
   gEfiMdeModulePkgTokenSpaceGuid.PcdTdxSharedBitMask|0x0
 
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory|FALSE
+
   # Set SEV-ES defaults
   gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbSize|0
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc
index af566b953f..aebe1c3192 100644
--- a/OvmfPkg/OvmfPkgIa32X64.dsc
+++ b/OvmfPkg/OvmfPkgIa32X64.dsc
@@ -655,6 +655,8 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask|0x0
   gEfiMdeModulePkgTokenSpaceGuid.PcdTdxSharedBitMask|0x0
 
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory|FALSE
+
   # Set SEV-ES defaults
   gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbSize|0
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index f39d9cd117..6e4418388e 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -679,6 +679,8 @@
   # Set Tdx shared bit mask
   gEfiMdeModulePkgTokenSpaceGuid.PcdTdxSharedBitMask|0x0
 
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory|FALSE
+
   # Set SEV-ES defaults
   gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbSize|0
diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
index 58a7c97cdd..0f57e22a2b 100644
--- a/OvmfPkg/OvmfXen.dsc
+++ b/OvmfPkg/OvmfXen.dsc
@@ -505,6 +505,8 @@
   # Set Tdx shared bit mask
   gEfiMdeModulePkgTokenSpaceGuid.PcdTdxSharedBitMask|0x0
 
+  gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUnacceptedMemory|FALSE
+
   gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy|0x00
 
 
################################################################################
-- 
2.37.3.998.g577e59143f-goog



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