From d0d66aef08ebf250a33f2ef431dc86e5ba4390cd Mon Sep 17 00:00:00 2001 From: Laszlo Ersek Date: Wed, 14 Oct 2015 13:59:20 +0200 Subject: [PATCH] ArmPlatformPkg: PrePeiCore: write early hello message to the serial port (RH) The FixedPcdGetSize() macro expands to an integer constant, therefore an optimizing compiler can eliminate the new code, if the platform DSC doesn't override the empty string (size=1) default of PcdEarlyHelloMessage. RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1270279 Downstream only: . Notes about the 20160608b-988715a -> 20170228-c325e41585e3 rebase: - no changes Notes about the 20170228-c325e41585e3 -> 20171011-92d07e48907f rebase: - no changes Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek (cherry picked from commit b16c4c505ce0e27305235533eac9236aa66f132e) (cherry picked from commit 742e5bf6d5ce5a1e73879d6e5c0dd00feda7a9ac) Signed-off-by: Paolo Bonzini --- ArmPlatformPkg/PrePeiCore/MainMPCore.c | 5 +++++ ArmPlatformPkg/PrePeiCore/MainUniCore.c | 5 +++++ ArmPlatformPkg/PrePeiCore/PrePeiCore.h | 1 + ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf | 2 ++ ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf | 2 ++ 5 files changed, 15 insertions(+) diff --git a/ArmPlatformPkg/PrePeiCore/MainMPCore.c b/ArmPlatformPkg/PrePeiCore/MainMPCore.c index d379ad8b7a..ff1672f94d 100644 --- a/ArmPlatformPkg/PrePeiCore/MainMPCore.c +++ b/ArmPlatformPkg/PrePeiCore/MainMPCore.c @@ -111,6 +111,11 @@ PrimaryMain ( UINTN TemporaryRamBase; UINTN TemporaryRamSize; + if (FixedPcdGetSize (PcdEarlyHelloMessage) > 1) { + SerialPortWrite (FixedPcdGetPtr (PcdEarlyHelloMessage), + FixedPcdGetSize (PcdEarlyHelloMessage) - 1); + } + CreatePpiList (&PpiListSize, &PpiList); // Enable the GIC Distributor diff --git a/ArmPlatformPkg/PrePeiCore/MainUniCore.c b/ArmPlatformPkg/PrePeiCore/MainUniCore.c index 1500d2bd51..5b0790beac 100644 --- a/ArmPlatformPkg/PrePeiCore/MainUniCore.c +++ b/ArmPlatformPkg/PrePeiCore/MainUniCore.c @@ -29,6 +29,11 @@ PrimaryMain ( UINTN TemporaryRamBase; UINTN TemporaryRamSize; + if (FixedPcdGetSize (PcdEarlyHelloMessage) > 1) { + SerialPortWrite (FixedPcdGetPtr (PcdEarlyHelloMessage), + FixedPcdGetSize (PcdEarlyHelloMessage) - 1); + } + CreatePpiList (&PpiListSize, &PpiList); // Adjust the Temporary Ram as the new Ppi List (Common + Platform Ppi Lists) is created at diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCore.h b/ArmPlatformPkg/PrePeiCore/PrePeiCore.h index 7140c7f5b5..1d69a2b468 100644 --- a/ArmPlatformPkg/PrePeiCore/PrePeiCore.h +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCore.h @@ -15,6 +15,7 @@ #include #include #include +#include #include #include diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf b/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf index 0e112710dc..9a5ba1adcb 100644 --- a/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf @@ -66,6 +66,8 @@ gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize + gArmPlatformTokenSpaceGuid.PcdEarlyHelloMessage + gArmTokenSpaceGuid.PcdGicDistributorBase gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase gArmTokenSpaceGuid.PcdGicSgiIntId diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf b/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf index c163a818c4..652260e6ab 100644 --- a/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf @@ -65,3 +65,5 @@ gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize gEfiMdeModulePkgTokenSpaceGuid.PcdInitValueInTempStack + + gArmPlatformTokenSpaceGuid.PcdEarlyHelloMessage