Re: [PATCH v4 2/7] OvmfPkg: resolve MmUnblockMemoryLib (mainly for VariableSmmRuntimeDxe)

["Laszlo Ersek" <lersek@redhat.com>]

On 03/02/21 21:04, Kun Qin wrote:
> This change added NULL MmUnblockMemoryLib instance in dsc files of
> OvmfPkg to pass CI build. When SMM_REQUIRE flag is set, the library
> interface is consumed by VariableSmmRuntimeDxe to better support variable
> runtime cache feature.
> 
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> 
> Signed-off-by: Kun Qin <kun.q@outlook.com>
> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
> ---
> 
> Notes:
>     v4:
>     - Updated patch title. [Laszlo]
>     - Moved this patch before the variable driver change. [Laszlo]
>     - Added reviewed-by tag. [Laszlo]

Looks good, thank you.
Laszlo

>     
>     v3:
>     - Newly added in v3. [Hao]
> 
>  OvmfPkg/OvmfPkgIa32.dsc    | 3 +++
>  OvmfPkg/OvmfPkgIa32X64.dsc | 3 +++
>  OvmfPkg/OvmfPkgX64.dsc     | 3 +++
>  3 files changed, 9 insertions(+)
> 
> diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
> index 1b8d34052b01..1eaf3e99c6c5 100644
> --- a/OvmfPkg/OvmfPkgIa32.dsc
> +++ b/OvmfPkg/OvmfPkgIa32.dsc
> @@ -347,6 +347,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
>    PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
>    QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
>    VariablePolicyLib|MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLibRuntimeDxe.inf
> +!if $(SMM_REQUIRE) == TRUE
> +  MmUnblockMemoryLib|MdePkg/Library/MmUnblockMemoryLib/MmUnblockMemoryLibNull.inf
> +!endif
>  
>  [LibraryClasses.common.UEFI_DRIVER]
>    PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
> diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc
> index 9c1aee87e783..4a5a43014725 100644
> --- a/OvmfPkg/OvmfPkgIa32X64.dsc
> +++ b/OvmfPkg/OvmfPkgIa32X64.dsc
> @@ -351,6 +351,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
>    PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
>    QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
>    VariablePolicyLib|MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLibRuntimeDxe.inf
> +!if $(SMM_REQUIRE) == TRUE
> +  MmUnblockMemoryLib|MdePkg/Library/MmUnblockMemoryLib/MmUnblockMemoryLibNull.inf
> +!endif
>  
>  [LibraryClasses.common.UEFI_DRIVER]
>    PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
> diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
> index fabb8b2f29e4..d4d601b44476 100644
> --- a/OvmfPkg/OvmfPkgX64.dsc
> +++ b/OvmfPkg/OvmfPkgX64.dsc
> @@ -353,6 +353,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
>    PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
>    QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
>    VariablePolicyLib|MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLibRuntimeDxe.inf
> +!if $(SMM_REQUIRE) == TRUE
> +  MmUnblockMemoryLib|MdePkg/Library/MmUnblockMemoryLib/MmUnblockMemoryLibNull.inf
> +!endif
>  
>  [LibraryClasses.common.UEFI_DRIVER]
>    PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
>