Change the addresses/sizes of the variable storage areas to use 256k blocks so UEFI is compatible with both the RTSM models and QEMU.
The VExpress flash has non-uniform block sizes, with most blocks being 256k and the top 4 blocks being 64k. UEFI has been using these top 64k blocks for persistent variable storage. The RTSM models the non-uniform sizes, while QEMU only supports emulating flash with uniform block sizes which results in the top 256k (the 4 64k blocks) of flash being unusable for writing in QEMU.
Note that this change will require RTSM flash images to be updated, as the variable storage has moved. Currently on the A15 model is supported by QEMU, but the A9 configuration is being updated as well to keep all RTSM VExpress configurations consistent.
Signed-off-by: Roy Franz roy.franz@linaro.org Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Steven Kinney steven.kinney@linaro.org --- ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc | 12 ++++++------ .../ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc | 12 ++++++------ ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc | 12 ++++++------ 3 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc index 2d12f4b..8883213 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc @@ -77,12 +77,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 # - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc index efd80ab..ae42de2 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc @@ -79,12 +79,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 # - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc index b635502..4d4d8b1 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc @@ -81,12 +81,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 # - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000 - gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000 + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
Hi Roy,
This patch is in 2013.12-rc1 now and I am no longer able to save my config in the models. Can you confirm if it works for you and what setup you are testing?
I see this on each boot:
Loading driver at 0x000BF54D000 EntryPoint=0x000BF54D26D ArmVeNorFlashDxe.efi ValidateFvHeader: No Firmware Volume header present NorFlashFvbInitialize: ERROR - The FVB Header is not valid. Installing a correct one for this volume. Ftw: Work block header check error Ftw: Work block header check error Ftw: Both are invalid, init workspace
Cheers, Ryan.
On 6 December 2013 23:01, Roy Franz roy.franz@linaro.org wrote:
Change the addresses/sizes of the variable storage areas to use 256k blocks so UEFI is compatible with both the RTSM models and QEMU.
The VExpress flash has non-uniform block sizes, with most blocks being 256k and the top 4 blocks being 64k. UEFI has been using these top 64k blocks for persistent variable storage. The RTSM models the non-uniform sizes, while QEMU only supports emulating flash with uniform block sizes which results in the top 256k (the 4 64k blocks) of flash being unusable for writing in QEMU.
Note that this change will require RTSM flash images to be updated, as the variable storage has moved. Currently on the A15 model is supported by QEMU, but the A9 configuration is being updated as well to keep all RTSM VExpress configurations consistent.
Signed-off-by: Roy Franz roy.franz@linaro.org Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Steven Kinney steven.kinney@linaro.org
ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc | 12 ++++++------ .../ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc | 12 ++++++------ ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc | 12 ++++++------ 3 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc index 2d12f4b..8883213 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc @@ -77,12 +77,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 #
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc index efd80ab..ae42de2 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc @@ -79,12 +79,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 #
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc index b635502..4d4d8b1 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc @@ -81,12 +81,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 #
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
-- 1.7.10.4
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On Mon, Dec 9, 2013 at 5:37 AM, Ryan Harkin ryan.harkin@linaro.org wrote:
Hi Roy,
This patch is in 2013.12-rc1 now and I am no longer able to save my config in the models. Can you confirm if it works for you and what setup you are testing?
I see this on each boot:
Loading driver at 0x000BF54D000 EntryPoint=0x000BF54D26D ArmVeNorFlashDxe.efi ValidateFvHeader: No Firmware Volume header present NorFlashFvbInitialize: ERROR - The FVB Header is not valid. Installing a correct one for this volume. Ftw: Work block header check error Ftw: Work block header check error Ftw: Both are invalid, init workspace
Cheers, Ryan.
Hi Ryan,
I have tracked down the problem to be that the ARM NOR driver only supporrts Firmware volumes that start at the base of a flash region. I will have an updated patchset out shortly. I have confirmed the saving of variables works on both the RTSM and QEMU simulators.
Roy
On 6 December 2013 23:01, Roy Franz roy.franz@linaro.org wrote:
Change the addresses/sizes of the variable storage areas to use 256k blocks so UEFI is compatible with both the RTSM models and QEMU.
The VExpress flash has non-uniform block sizes, with most blocks being 256k and the top 4 blocks being 64k. UEFI has been using these top 64k blocks for persistent variable storage. The RTSM models the non-uniform sizes, while QEMU only supports emulating flash with uniform block sizes which results in the top 256k (the 4 64k blocks) of flash being unusable for writing in QEMU.
Note that this change will require RTSM flash images to be updated, as the variable storage has moved. Currently on the A15 model is supported by QEMU, but the A9 configuration is being updated as well to keep all RTSM VExpress configurations consistent.
Signed-off-by: Roy Franz roy.franz@linaro.org Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Steven Kinney steven.kinney@linaro.org
ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc | 12 ++++++------ .../ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc | 12 ++++++------ ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc | 12 ++++++------ 3 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc index 2d12f4b..8883213 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15.dsc @@ -77,12 +77,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 #
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc index efd80ab..ae42de2 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A15_MPCore.dsc @@ -79,12 +79,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 #
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc index b635502..4d4d8b1 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc @@ -81,12 +81,12 @@ # # NV Storage PCDs. Use base of 0x0C000000 for NOR1 #
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FFC0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FFD0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00010000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FFE0000
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0FF00000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0x0FF40000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize|0x00040000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0FF80000
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00040000
gArmTokenSpaceGuid.PcdVFPEnabled|1
-- 1.7.10.4
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-
Roy Franz -
Ryan Harkin