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| author | Laszlo Ersek <lersek@redhat.com> | 2015-11-30 18:42:35 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-11-30 18:42:35 +0000 |
| commit | 896d3dcf25f0bc90d5d0d4aed939a487f971f4b0 (patch) | |
| tree | 99d4651bfa12fb436e080242209e2edc25b383d7 /OvmfPkg | |
| parent | decb365b0016bee2597250903366e02c0e47cc02 (diff) | |
| download | edk2-896d3dcf25f0bc90d5d0d4aed939a487f971f4b0.tar.gz edk2-896d3dcf25f0bc90d5d0d4aed939a487f971f4b0.tar.bz2 edk2-896d3dcf25f0bc90d5d0d4aed939a487f971f4b0.zip | |
OvmfPkg: set gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmEnableBspElection to FALSE
Explanation from Michael Kinney:
This PCD allows a platform to provide PlatformSmmBspElection() in a
platform specific SmmCpuPlatformHookLib instance to decide which CPU
gets elected to be the BSP in each SMI.
The SmmCpuPlatformHookLibNull [instance] always returns EFI_NOT_READY
for that function, which makes the module behave the same as the PCD
being set to FALSE.
The default is TRUE, so the platform lib is always called, so a platform
developer can implement the hook function and does not have to also
change a PCD setting for the hook function to be active.
A platform that wants to eliminate the call to the hook function
[altogether] can set the PCD to FALSE.
So for OVMF, I think it makes sense to set this PCD to FALSE in the DSC
file.
Suggested-by: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19053 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg')
| -rw-r--r-- | OvmfPkg/OvmfPkgIa32.dsc | 1 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkgIa32X64.dsc | 1 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkgX64.dsc | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc index e2274eeb58..20f6afa257 100644 --- a/OvmfPkg/OvmfPkgIa32.dsc +++ b/OvmfPkg/OvmfPkgIa32.dsc @@ -344,6 +344,7 @@ !endif
!if $(SMM_REQUIRE) == TRUE
gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire|TRUE
+ gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmEnableBspElection|FALSE
!endif
[PcdsFixedAtBuild]
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc index d1188ff56a..b8f6c11e96 100644 --- a/OvmfPkg/OvmfPkgIa32X64.dsc +++ b/OvmfPkg/OvmfPkgIa32X64.dsc @@ -349,6 +349,7 @@ !endif
!if $(SMM_REQUIRE) == TRUE
gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire|TRUE
+ gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmEnableBspElection|FALSE
!endif
[PcdsFixedAtBuild]
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc index 2162497cc9..2f09661fe9 100644 --- a/OvmfPkg/OvmfPkgX64.dsc +++ b/OvmfPkg/OvmfPkgX64.dsc @@ -349,6 +349,7 @@ !endif
!if $(SMM_REQUIRE) == TRUE
gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire|TRUE
+ gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmEnableBspElection|FALSE
!endif
[PcdsFixedAtBuild]
|