* Using PcdSet32S for gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
@ 2018-03-16 1:12 Vladimir Olovyannikov
2018-03-16 1:15 ` Gao, Liming
0 siblings, 1 reply; 3+ messages in thread
From: Vladimir Olovyannikov @ 2018-03-16 1:12 UTC (permalink / raw)
To: edk2-devel
Hi,
I would like to overwrite
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
>From an Fvb runtime driver.
For that purpose I try to do it like this:
PcdStatus = PcdSet32S(PcdFlashNvStorageVariableBase,
(UINT32)(UINTN)Instance->VariableBase);
My .inf file for the driver contains
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
MyTestPlatformPkg/MytestPlatformPkg.dec
and
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
When I build the image, I am getting
/uefi/MdePkg/Include/Library/PcdLib.h:630:45: error: implicit declaration of
function `_PCD_SET_MODE_32_S_PcdFlashNvStorageVariableBase`
[-Werror=implicit-function-declaration]
#define PcdSet32S(TokenName, Value) _PCD_SET_MODE_32_S_##TokenName
((Value))
^
/uefi/BroadcomPlatformPkg/Drivers/FvbDxe/FvbImpl.c:1090:19: note: in
expansion of macro `PcdSet32S`
PcdStatus = PcdSet32S(PcdFlashNvStorageVariableBase,
(UINT32)(UINTN)Instance->VariableBase);
^~~~~~~~~
in Autogen.h for the driver:
extern const UINT32 _gPcd_FixedAtBuild_PcdFlashNvStorageVariableBase;
#define _PCD_GET_MODE_SIZE_PcdFlashNvStorageVariableBase
_PCD_SIZE_PcdFlashNvStorageVariableBase
//#define _PCD_SET_MODE_32_PcdFlashNvStorageVariableBase ASSERT(FALSE) //
It is not allowed to set value for a FIXED_AT_BUILD PCD
Similarly there are no definitions for other Pcds for PcdSet32 (for instance
PcdFlashNvStorageFtwWorkingBase);
they are all set as "FixedAtBuild".
I can see the PcdFlashNvStorageVariableBase is declared in MdeModulePkg as
[PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]
...
## Base address of the NV variable range in flash device.
# @Prompt Base address of flash NV variable range.
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0|UINT32|0x30000001
Why is it set as "FixedAtBuild", and how can I change it to be writable?
I can see that some platforms (for instance, OvmfPkg) overwrite these
variables via PcdSet32S/PcdSet64S.
What am I missing here?
Thank you,
Vladimir
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Using PcdSet32S for gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
2018-03-16 1:12 Using PcdSet32S for gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize Vladimir Olovyannikov
@ 2018-03-16 1:15 ` Gao, Liming
2018-03-16 1:25 ` Vladimir Olovyannikov
0 siblings, 1 reply; 3+ messages in thread
From: Gao, Liming @ 2018-03-16 1:15 UTC (permalink / raw)
To: Vladimir Olovyannikov, edk2-devel@lists.01.org
You need to configure PCD in [PcdsDynamicDefault.common.DEFAULT] of platform DSC file, and remove it from platform FDF file.
You can refer to Nt32Pkg\Nt32Pkg.dsc, it configure gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase as Dynamic, and set it at boot time.
Thanks
Liming
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Vladimir Olovyannikov
> Sent: Friday, March 16, 2018 9:13 AM
> To: edk2-devel@lists.01.org
> Subject: [edk2] Using PcdSet32S for gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
>
> Hi,
>
> I would like to overwrite
> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
> From an Fvb runtime driver.
> For that purpose I try to do it like this:
> PcdStatus = PcdSet32S(PcdFlashNvStorageVariableBase,
> (UINT32)(UINTN)Instance->VariableBase);
>
> My .inf file for the driver contains
> [Packages]
> MdePkg/MdePkg.dec
> MdeModulePkg/MdeModulePkg.dec
> MyTestPlatformPkg/MytestPlatformPkg.dec
>
> and
> [Pcd]
> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
>
> When I build the image, I am getting
> /uefi/MdePkg/Include/Library/PcdLib.h:630:45: error: implicit declaration of
> function `_PCD_SET_MODE_32_S_PcdFlashNvStorageVariableBase`
> [-Werror=implicit-function-declaration]
> #define PcdSet32S(TokenName, Value) _PCD_SET_MODE_32_S_##TokenName
> ((Value))
> ^
> /uefi/BroadcomPlatformPkg/Drivers/FvbDxe/FvbImpl.c:1090:19: note: in
> expansion of macro `PcdSet32S`
> PcdStatus = PcdSet32S(PcdFlashNvStorageVariableBase,
> (UINT32)(UINTN)Instance->VariableBase);
> ^~~~~~~~~
> in Autogen.h for the driver:
> extern const UINT32 _gPcd_FixedAtBuild_PcdFlashNvStorageVariableBase;
> #define _PCD_GET_MODE_SIZE_PcdFlashNvStorageVariableBase
> _PCD_SIZE_PcdFlashNvStorageVariableBase
> //#define _PCD_SET_MODE_32_PcdFlashNvStorageVariableBase ASSERT(FALSE) //
> It is not allowed to set value for a FIXED_AT_BUILD PCD
>
> Similarly there are no definitions for other Pcds for PcdSet32 (for instance
> PcdFlashNvStorageFtwWorkingBase);
> they are all set as "FixedAtBuild".
>
> I can see the PcdFlashNvStorageVariableBase is declared in MdeModulePkg as
> [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]
> ...
> ## Base address of the NV variable range in flash device.
> # @Prompt Base address of flash NV variable range.
> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0|UINT32|0x30000001
>
> Why is it set as "FixedAtBuild", and how can I change it to be writable?
> I can see that some platforms (for instance, OvmfPkg) overwrite these
> variables via PcdSet32S/PcdSet64S.
>
> What am I missing here?
>
> Thank you,
> Vladimir
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Using PcdSet32S for gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
2018-03-16 1:15 ` Gao, Liming
@ 2018-03-16 1:25 ` Vladimir Olovyannikov
0 siblings, 0 replies; 3+ messages in thread
From: Vladimir Olovyannikov @ 2018-03-16 1:25 UTC (permalink / raw)
To: Gao, Liming, edk2-devel
Thanks a lot Liming,
This works.
Vladimir
-----Original Message-----
From: Gao, Liming [mailto:liming.gao@intel.com]
Sent: Thursday, March 15, 2018 6:16 PM
To: Vladimir Olovyannikov; edk2-devel@lists.01.org
Subject: RE: [edk2] Using PcdSet32S for
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
You need to configure PCD in [PcdsDynamicDefault.common.DEFAULT] of
platform DSC file, and remove it from platform FDF file.
You can refer to Nt32Pkg\Nt32Pkg.dsc, it configure
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase as Dynamic,
and set it at boot time.
Thanks
Liming
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> Vladimir Olovyannikov
> Sent: Friday, March 16, 2018 9:13 AM
> To: edk2-devel@lists.01.org
> Subject: [edk2] Using PcdSet32S for
> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
>
> Hi,
>
> I would like to overwrite
> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
> From an Fvb runtime driver.
> For that purpose I try to do it like this:
> PcdStatus = PcdSet32S(PcdFlashNvStorageVariableBase,
> (UINT32)(UINTN)Instance->VariableBase);
>
> My .inf file for the driver contains
> [Packages]
> MdePkg/MdePkg.dec
> MdeModulePkg/MdeModulePkg.dec
> MyTestPlatformPkg/MytestPlatformPkg.dec
>
> and
> [Pcd]
> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
>
> When I build the image, I am getting
> /uefi/MdePkg/Include/Library/PcdLib.h:630:45: error: implicit
> declaration of function
> `_PCD_SET_MODE_32_S_PcdFlashNvStorageVariableBase`
> [-Werror=implicit-function-declaration]
> #define PcdSet32S(TokenName, Value)
_PCD_SET_MODE_32_S_##TokenName
> ((Value))
> ^
> /uefi/BroadcomPlatformPkg/Drivers/FvbDxe/FvbImpl.c:1090:19: note: in
> expansion of macro `PcdSet32S`
> PcdStatus = PcdSet32S(PcdFlashNvStorageVariableBase,
> (UINT32)(UINTN)Instance->VariableBase);
> ^~~~~~~~~
> in Autogen.h for the driver:
> extern const UINT32
> _gPcd_FixedAtBuild_PcdFlashNvStorageVariableBase;
> #define _PCD_GET_MODE_SIZE_PcdFlashNvStorageVariableBase
> _PCD_SIZE_PcdFlashNvStorageVariableBase
> //#define _PCD_SET_MODE_32_PcdFlashNvStorageVariableBase
> ASSERT(FALSE) // It is not allowed to set value for a FIXED_AT_BUILD
> PCD
>
> Similarly there are no definitions for other Pcds for PcdSet32 (for
> instance PcdFlashNvStorageFtwWorkingBase); they are all set as
> "FixedAtBuild".
>
> I can see the PcdFlashNvStorageVariableBase is declared in
> MdeModulePkg as [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic,
> PcdsDynamicEx] ...
> ## Base address of the NV variable range in flash device.
> # @Prompt Base address of flash NV variable range.
>
> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0|UINT3
> 2|0x30000001
>
> Why is it set as "FixedAtBuild", and how can I change it to be writable?
> I can see that some platforms (for instance, OvmfPkg) overwrite these
> variables via PcdSet32S/PcdSet64S.
>
> What am I missing here?
>
> Thank you,
> Vladimir
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-03-16 1:12 Using PcdSet32S for gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize Vladimir Olovyannikov
2018-03-16 1:15 ` Gao, Liming
2018-03-16 1:25 ` Vladimir Olovyannikov
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