boot-architecture

boot-architecture@lists.linaro.org

1 participants
628 discussions

Possible race condition in multi-core EDK2

by Roy Franz

I've been working with the DEBUG build of EDK2, and thought I had changed the configuration to be 'proper' for a single core, and it ran fine on a single core simulation. As I started removing debug prints, I started getting simulator seg faults. I confirmed that the difference between running and crashing versions were simply debug prints. Changing the simulation to simulator 2 cores resolved the problem. I suspect that there may be a race condition or some other multi-core detection bug that causes this crash. I don't plan to investigate this further at this point - just wanted to report this as I was surprised to find that a debug print being removed would cause the simulator to crash. Roy

11 years, 5 months

uefi-build.sh - bash completion

by Ryan Harkin

Hey all, After my chat with Leif chat on Thurs, one thing I thought about was bash completion for uefi-build.sh. Turns out it's quite easy! I just pushed this commit to uefi-tools.git [1]. It's quite dumb in that you can autocomplete "DEBUG" or "RELEASE" even without the "-b" parameter, but hey, it makes my life easier :-) Cheers, Ryan. commit dc3ba99d46ecb87c529a475d5ff6b840cd2f7c8d Author: Ryan Harkin <ryan.harkin(a)linaro.org> Date: Tue Jun 11 13:00:12 2013 +0100 uefi-build: add bash completion script Copy this script into the bash completion directory to easy entering parameters: $ sudo cp uefi-build.sh.bash_completion \ /etc/bash_completion.d/uefi-build.sh Signed-off-by: Ryan Harkin <ryan.harkin(a)linaro.org> diff --git a/uefi-build.sh.bash_completion b/uefi-build.sh.bash_completion new file mode 100644 index 0000000..f0a5305 --- /dev/null +++ b/uefi-build.sh.bash_completion @@ -0,0 +1,24 @@ +# bash completion for uefi-build.sh +# copy this file to /etc/bash_completion.d/uefi-build.s + +have uefi-build.sh && +_uefi-build.sh() +{ + local cur prev + + COMPREPLY=() + _get_comp_words_by_ref -n = cur + + _expand || return 0 + + COMPREPLY=( $( compgen -W '--help -b --build RELEASE DEBUG a5 a9 tc1 tc2 panda origen arndale rtsm_a9x4 rtsm_a15x1 rtsm_a15mpcore rtsm_aarch6 +} && +complete -F _uefi-build.sh uefi-build.sh + +# Local variables: +# mode: shell-script +# sh-basic-offset: 4 +# sh-indent-comment: t +# indent-tabs-mode: nil +# End: +# ex: ts=4 sw=4 et filetype=sh [1] http://git.linaro.org/gitweb?p=arm/uefi/uefi-tools.git;a=summary

11 years, 5 months

[PATCH] This patch fixes the build breakage issue for Arndale BSP due to the patch "ArmPlatformPkg/ArmPlatformLib: Added support for ArmPlatformIsPrimaryCore()"

by Rony Nandy

--- .../ArndaleBoardLib/Exynos5250/BoardHelper.S | 25 ++++++++++++++++++++ .../ArndaleBoardPkg/arndale-Exynos5250.dsc | 16 ------------- .../ArndaleBoardPkg/arndale-Exynos5250.fdf | 15 ------------ .../Exynos5250/Drivers/Gic400Dxe/PL390GicSec.c | 3 ++- .../Drivers/Gic400Dxe/PL390GicSecLib.inf | 5 ++-- SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.c | 5 ++-- .../ExynosPkg/Exynos5250/Sec/Sec.inf | 3 --- .../ExynosPkg/Exynos5250/Sec/SecEntryPoint.S | 25 +++++++++++++------- 8 files changed, 49 insertions(+), 48 deletions(-) diff --git a/SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S b/SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S index 1975e65..7ee7821 100644 --- a/SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S +++ b/SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S @@ -14,6 +14,7 @@ #include <AsmMacroIoLib.h> #include <Base.h> #include <Library/PcdLib.h> +#include <Library/ArmLib.h> #include <AutoGen.h> #.include AsmMacroIoLib.inc @@ -23,6 +24,9 @@ .align 2 GCC_ASM_EXPORT(ArmGetCpuCountPerCluster) +GCC_ASM_EXPORT(ArmPlatformGetCorePosition) +GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore) +GCC_ASM_EXPORT(ArmPlatformPeiBootAction) # IN None # OUT r0 = SCU Base Address @@ -68,4 +72,25 @@ _Return: ldmfd SP!, {r1-r2} bx lr +ASM_PFX(ArmPlatformIsPrimaryCore): + #last 2 bit of mpid register in 5250 is CPU ID + ldr r1, =0x3 + and r0, r0, r1 + #id for core0 should be 0 + ldr r1, =0x0 + cmp r0, r1 + moveq r0, #1 + movne r0, #0 + mov pc, lr + +ASM_PFX(ArmPlatformGetCorePosition): + and r1, r0, #0x03 //cpu core mask last 2 bits + and r0, r0, #(0x0f<<8) //cpu cluster mask bit 8-11 + add r0, r1, r0, LSR #7 + mov pc, lr + + +ASM_PFX(ArmPlatformPeiBootAction): + mov pc, lr + ASM_FUNCTION_REMOVE_IF_UNREFERENCED diff --git a/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc b/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc index 941c6e5..ade2997 100755 --- a/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc +++ b/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.dsc @@ -56,7 +56,6 @@ [BuildOptions] RVCT:*_*_ARM_PLATFORM_FLAGS == --cpu Cortex-A8 --fpu=softvfp -I$(WORKSPACE)/SamsungPlatformPkg/ExynosPkg/Exynos5250/Include/Platform - #GCC:*_*_ARM_PLATFORM_FLAGS == -mcpu=cortex-a8 -I$(WORKSPACE)/SamsungPlatformPkg/ExynosPkg/Exynos5250/Include/Platform GCC:*_*_ARM_PLATFORM_FLAGS == -march=armv7-a -I$(WORKSPACE)/SamsungPlatformPkg/ExynosPkg/Exynos5250/Include/Platform XCODE:*_*_ARM_PLATFORM_FLAGS == -arch armv7 -I$(WORKSPACE)/SamsungPlatformPkg/ExynosPkg/Exynos5250/Include/Platform @@ -242,7 +241,6 @@ SamsungPlatformPkg/ExynosPkg/Exynos5250/MemoryInitPei/MemoryInitPeim.inf ArmPkg/Drivers/CpuPei/CpuPei.inf IntelFrameworkModulePkg/Universal/StatusCode/Pei/StatusCodePei.inf - #Nt32Pkg/BootModePei/BootModePei.inf MdeModulePkg/Universal/Variable/Pei/VariablePei.inf MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf { <LibraryClasses> @@ -268,22 +266,17 @@ MdeModulePkg/Universal/WatchdogTimerDxe/WatchdogTimer.inf MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf - #MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf - #MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf EmbeddedPkg/ResetRuntimeDxe/ResetRuntimeDxe.inf EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf EmbeddedPkg/MetronomeDxe/MetronomeDxe.inf MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf - #MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe.inf MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsoleDxe.inf MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf EmbeddedPkg/SimpleTextInOutSerial/SimpleTextInOutSerial.inf - #EmbeddedPkg/SerialDxe/SerialDxe.inf MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseDxe.inf - #MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf SamsungPlatformPkg/ArndaleBoardPkg/FvbDxe/FvbDxe.inf SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/TimerDxe/TimerDxe.inf @@ -318,9 +311,6 @@ # # Application # - #SamsungPlatformPkg/Apps/TestApps/HashServicesTest/HashServicesTest.inf - #SamsungPlatformPkg/Apps/TestApps/RngServicesTest/RngServicesTest.inf - # # Bds # @@ -346,9 +336,7 @@ # usb host : ehci + bus + pci_emul + mass_storage # SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/PciEmulation/PciEmulation.inf - #SamsungPlatformPkg/ExynosPkg/Exynos5250/OhciDxe/OhciDxe.inf MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf - #MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBusDxe.inf MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.inf @@ -363,8 +351,6 @@ <LibraryClasses> LockBoxLib|MdeModulePkg/Library/LockBoxNullLib/LockBoxNullLib.inf } - MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableDxe/FirmwarePerformanceDxe.inf - #MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.inf SamsungPlatformPkg/Apps/Tools/fwupdate/fwupdate_5250.inf @@ -372,9 +358,7 @@ # # Crypto for Exynos # - #SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/HashDxe/HashDxe.inf # # Rng for Exynos # - #SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/RngDxe/RngDxe.inf diff --git a/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.fdf b/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.fdf index 8b5a5a7..9bccd79 100755 --- a/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.fdf +++ b/SamsungPlatformPkg/ArndaleBoardPkg/arndale-Exynos5250.fdf @@ -120,7 +120,6 @@ READ_STATUS = TRUE READ_LOCK_CAP = TRUE READ_LOCK_STATUS = TRUE - #INF ArmPlatformPkg/Sec/Sec.inf INF SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.inf @@ -155,8 +154,6 @@ READ_LOCK_STATUS = TRUE INF MdeModulePkg/Universal/WatchdogTimerDxe/WatchdogTimer.inf INF MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf INF MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf - #INF MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf - #INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf INF MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf INF EmbeddedPkg/ResetRuntimeDxe/ResetRuntimeDxe.inf INF EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf @@ -166,14 +163,10 @@ READ_LOCK_STATUS = TRUE # Multiple Console IO support # INF MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf - #INF MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe.inf INF MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsoleDxe.inf INF MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf INF EmbeddedPkg/SimpleTextInOutSerial/SimpleTextInOutSerial.inf - #INF EmbeddedPkg/SerialDxe/SerialDxe.inf - INF MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseDxe.inf - #INF MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf !ifdef $(EXYNOS5250_EVT1) INF SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicDxe.inf @@ -207,9 +200,7 @@ READ_LOCK_STATUS = TRUE # USB HOST STACK # INF SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/PciEmulation/PciEmulation.inf - #INF SamsungPlatformPkg/ExynosPkg/Exynos5250/OhciDxe/OhciDxe.inf INF MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf - #INF MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf INF MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBusDxe.inf INF MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageDxe.inf @@ -223,20 +214,14 @@ READ_LOCK_STATUS = TRUE INF MdeModulePkg/Universal/ReportStatusCodeRouter/Pei/ReportStatusCodeRouterPei.inf INF MdeModulePkg/Universal/ReportStatusCodeRouter/RuntimeDxe/ReportStatusCodeRouterRuntimeDxe.inf INF MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.inf - INF MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableDxe/FirmwarePerformanceDxe.inf - #INF MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf # Crypto for Exynos # - #INF SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/HashDxe/HashDxe.inf - #INF SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/RngDxe/RngDxe.inf # # UEFI application (Shell Embedded Boot Loader) # INF ShellBinPkg/UefiShell/UefiShell.inf - #INF SamsungPlatformPkg/Apps/TestApps/HashServicesTest/HashServicesTest.inf - #INF SamsungPlatformPkg/Apps/TestApps/RngServicesTest/RngServicesTest.inf # # Bds diff --git a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicSec.c b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicSec.c index f7b6d7c..82ecfde 100644 --- a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicSec.c +++ b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicSec.c @@ -15,6 +15,7 @@ #include <Base.h> #include <Library/ArmLib.h> #include <Library/DebugLib.h> +#include <Library/ArmPlatformLib.h> #include <Library/IoLib.h> #include <Library/ArmGicLib.h> @@ -50,7 +51,7 @@ ArmGicSetupNonSecure ( } // Only the primary core should set the Non Secure bit to the SPIs (Shared Peripheral Interrupt). - if (IS_PRIMARY_CORE(MpId)) { + if (ArmPlatformIsPrimaryCore (MpId)) { // Ensure all GIC interrupts are Non-Secure for (Index = 0; Index < (ArmGicGetMaxNumInterrupts (GicDistributorBase) / 32); Index++) { MmioWrite32 (GicDistributorBase + ARM_GIC_ICDISR + (Index * 4), 0xffffffff); diff --git a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicSecLib.inf b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicSecLib.inf index 9e1fd09..ab399b4 100644 --- a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicSecLib.inf +++ b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Drivers/Gic400Dxe/PL390GicSecLib.inf @@ -25,7 +25,9 @@ [Packages] ArmPkg/ArmPkg.dec + ArmPlatformPkg/ArmPlatformPkg.dec MdePkg/MdePkg.dec + MdeModulePkg/MdeModulePkg.dec [LibraryClasses] ArmLib @@ -33,6 +35,3 @@ IoLib PcdLib -[FixedPcd.common] - gArmTokenSpaceGuid.PcdArmPrimaryCoreMask - gArmTokenSpaceGuid.PcdArmPrimaryCore diff --git a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.c b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.c index 549171b..3c4f498 100644 --- a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.c +++ b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.c @@ -21,6 +21,7 @@ #include <Library/ArmGicLib.h> #include <Library/ArmCpuLib.h> #include <Library/IoLib.h> +#include <Library/ArmPlatformLib.h> #include "SecInternal.h" #include "Smc.h" @@ -94,7 +95,7 @@ CEntryPoint ( } // Primary CPU clears out the SCU tag RAMs, secondaries wait - if (IS_PRIMARY_CORE(MpId)) { + if (ArmPlatformIsPrimaryCore (MpId)) { if (ArmIsMpCore()) { // Is UEFI built as it is assumed that TZSW is running? // PcdTrustzoneSupport==1: YES. @@ -174,7 +175,7 @@ TrustedWorldInitialization ( ArmPlatformSecTrustzoneInit (MpId); // Setup the Trustzone Chipsets - if (IS_PRIMARY_CORE(MpId)) { + if (ArmPlatformIsPrimaryCore (MpId)) { if (ArmIsMpCore()) { // Signal the secondary core the Security settings is done (event: EVENT_SECURE_INIT) ArmCallSEV (); diff --git a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.inf b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.inf index 854b269..1cda8c3 100644 --- a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.inf +++ b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/Sec.inf @@ -62,9 +62,6 @@ gArmTokenSpaceGuid.PcdArmNsacr gArmTokenSpaceGuid.PcdArmNonSecModeTransition - gArmTokenSpaceGuid.PcdArmPrimaryCoreMask - gArmTokenSpaceGuid.PcdArmPrimaryCore - gArmTokenSpaceGuid.PcdSecureFvBaseAddress gArmTokenSpaceGuid.PcdSecureFvSize diff --git a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/SecEntryPoint.S b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/SecEntryPoint.S index 08a893c..4dec90b 100644 --- a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/SecEntryPoint.S +++ b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Sec/SecEntryPoint.S @@ -14,12 +14,14 @@ #include <AutoGen.h> #include <AsmMacroIoLib.h> #include <Library/ArmPlatformLib.h> +#include <ArmPlatform.h> #include "SecInternal.h" .text .align 3 GCC_ASM_IMPORT(CEntryPoint) +GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore) GCC_ASM_IMPORT(CopyFirmwareFromEMMC) GCC_ASM_IMPORT(CopyFirmwareFromSDMMC) GCC_ASM_IMPORT(ArmPlatformClockInitialize) @@ -36,6 +38,16 @@ GCC_ASM_EXPORT(_ModuleEntryPoint) SecStartupAddr: .word ASM_PFX(_SecEntryFromTzsw) StartupAddr: .word ASM_PFX(CEntryPoint) +// Convert the (ClusterId,CoreId) into a Core Position +// 0x0F03 is the magic value for ARM_CORE_MASK | ARM_CLUSTER_MASK +//Core is 0-1 bits and cluster is 8-11 bits +#define GetCorePositionFromMpId(Pos, MpId, Tmp) \ + ldr Tmp, =0x0F03 ; \ + and MpId, Tmp ; \ + lsr Pos, MpId, #6 ; \ + and Tmp, MpId, #3 ; \ + add Pos, Pos, Tmp + // Reserve a region at the top of the IRAM Core stack // for Global variables for the XIP phase #define SetiRamStack(StackTop, GlobalSize, Tmp) \ @@ -85,13 +97,13 @@ ASM_PFX(_ModuleEntryPoint): _IdentifyCpu: // Identify CPU ID bl ASM_PFX(ArmReadMpidr) - // Get ID of this CPU in Multicore system - LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCoreMask), r1) - and r5, r0, r1 + // Keep a copy of the MpId register value + mov r5, r0 // Is it the Primary Core ? - LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCore), r3) - cmp r5, r3 + bl ASM_PFX(ArmPlatformIsPrimaryCore) + cmp r0, #1 + // Only the primary core initialize the memory (SMC) beq _InitMem @@ -119,9 +131,6 @@ _InitMem: bl ASM_PFX(ArmPlatformSecBootMemoryInit) - // Only Primary CPU could run this line (the secondary cores have jumped from _IdentifyCpu to _SetupStack) - LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCore), r5) - _SetupPrimaryCoreStack: // Get the top of the primary stacks (and the base of the secondary stacks) LoadConstantToReg (FixedPcdGet32(PcdCPUCoresSecStackBase), r1) -- 1.7.9.5

11 years, 5 months

[PATCH 0/1] How to fix your ARM UEFI BSP to work with the latest upstream Tianocore code

by Ryan Harkin

[PATCH 1/2] TC1: Fix TC1 build for latest upstream changes [PATCH 2/2] VEA5: Fix A5 build for latest upstream changes The two platforms are relatively simple to fix because they follow the TC2 and A9 BSPs very closely. Perhaps close enough to some more code to be moved to common areas ;-) These examples will show you the simple steps you will need to take to get your BSP working. However, your BSP may be using old functionality that my BSPs were not. The main change to watch out for is the deletion of the macro IS_PRIMARY_CORE() which has been replaced with a function that the BSP must provide. The change came about with this commit: -------------------------------------------------------------------------------- commit bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61 Author: oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> Date: Fri May 10 12:41:27 2013 +0000 ArmPlatformPkg/ArmPlatformLib: Added support for ArmPlatformIsPrimaryCore() Checking if a core if the primary/boot core used to be done with the macro IS_PRIMARY_CORE(). Some platforms exposes configuration registers to change the primary core. Replacing the macro IS_PRIMARY_CORE() by ArmPlatformIsPrimaryCore() allows some flexibility in the way to check the primary core. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin(a)arm.com> Reviewed-by: Leif Lindholm <leif.lindholm(a)linaro.org> Acked-by: Ryan Harkin <ryan.harkin(a)linaro.org> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14344 6f19259b-4bc3-4df7-8a09-765794883524 -------------------------------------------------------------------------------- My examples provide this function in a way that works for them, however, your platforms may use different mechanisms. I have no specific code that was using the IS_PRIMARY_CORE() macro, so these patches will not give an example of how you deal with those changes, but Olivier's original patch should help a lot there. Regards, Ryan. [1] https://git.linaro.org/gitweb?p=arm/uefi/uefi-next.git;a=summary

11 years, 5 months

linaro-uefi-2013.06-rc1 is out

by Ryan Harkin

Hello UEFI folks, I spent the day with Leif going through maintainer stuff and together we produced the 2013.06 iteration of the Linaro UEFI tree [1]. Highlights include: - A5, TC1, Panda, Origen and Arndale no longer build (I will be fixing A5 and TC1 as part of -rc2, unless something else urgent comes in and needs an -rc2) - The -menu and -local-fdt topics have been merged into one -bds topic to simplify upstreaming, reviewing and merging - All topics are rebased to the latest Tianocore upstream code - Some of our patches have made it upstream - yay! - and thus have been removed from our topic branches - There are more patches that we think are ready to go upstream now. I'll start this after -rc2 Regards, Ryan. [1] https://git.linaro.org/gitweb?p=arm/uefi/uefi-next.git;a=summary

11 years, 5 months

Re: Looking at Maintainer Tasks Today And Tomorrow

by Steven Kinney

Hi Ryan, Thanks for the patch system and I will follow the same methodology. BR, Steve On 4 June 2013 10:50, Ryan Harkin <ryan.harkin(a)linaro.org> wrote: > Hi Steve, > > Further to our phone call, I pushed out my patch system git repo: > > ssh:// > linaro-private.git.linaro.org/srv/linaro-private.git.linaro.org/uefi/patche… > > Hope it helps! > > Cheers, > Ryan. > > On 3 June 2013 16:23, Steven Kinney <steven.kinney(a)linaro.org> wrote: > > Hi Ryan, > > > > I am focusing on maintainer tasks today and tomorrow; > > before I start on 64-bit SCT integration. I talked to Grant on my > one-on-one > > Friday and he suggested applying the patches within a local repository, > > maybe within my git.linaro.org folder, and working with you regarding > > merging and other GIT tasks. Of course, if you have ant suggestions to > > start getting me up so that I can be more of use to you, please let me > know. > > Also, Grant wanted me to start giving suggestions regarding the coding, > and > > I see some areas that can be commented on, but I would like to make sure > we > > are in sync before I start yammering on commented out code blocks and > such. > > > > Anyway, I look forward to learning about this area and > > will ping you from time to time over the next few days to get some > specific > > advice. Thanks for you patience and help! > > > > BR, > > > > Steve >

11 years, 5 months

Fast Model for testing

by Steven Kinney

Ryan, Which Fast Model would you recommend for SCT testing and testing in general. -Steve

11 years, 5 months

Re: Detect SMBIOS table

by Grant Likely

[cc'ing the boot architecture list; this conversation should be in public] On Wed, May 29, 2013 at 11:19 AM, Leif Lindholm <leif.lindholm(a)linaro.org> wrote: > Hi Yi, > > On 28 May 2013 15:52, Li Yi <yi.li(a)linaro.org> wrote: >> just modify linux loader , add SMBIOS address information into fdt. then >> I will modify the dmidecode to parse the /dev/devicetree to find SMBIOS >> table pointer. Maybe this way can skip grub and kernel's modification. > > Ok, yes, that should work. > >> the only problem I care about is the address wrote into fdt ,it is a >> real physical address, does dmidecode (tool) can read this address ,and do >> the right thing? it need to be proved. > > Yes - UEFI is guaranteed to run with a 1:1 mapping, so the address you see it > at in the UEFI linux loader is the physical address. > >> Grant: if kernel will use the SMBIOS's region memory, can I reserve the >> 64M memory from the top total ,then kernel will know it's reserved ,will not >> use the region again ,right? > > That should be enough. Yes, but you shouldn't even need to do that. I just looked at the LinuxLoader code, in particular the UEFI FDT code, and I've noticed that the reserved regions should already be set up. Look in ArmPkg/Library/BdsLib/BdsLinuxFdt.c, about line 420. The function PrepareFdt() retrieves the UEFI memory map and calls fdt_add_mem_rsv() for each region. It does use the function IsLinuxReservedRegion() to filter the regions, so if SMBIOS uses a different region type then you'll need to add that type to the list. So, if I'm correct, it should be sufficient to merely enable SMBIOS support in UEFI and the kernel will automatically mark the SMBIOS region as reserved. You can verify this by adding "memblock=debug" to the kernel command line and looking at the kernel boot output. You'll see something like this: memblock_reserve: [0x00000000008400-0x0000000042e98c] arm_memblock_init+0x4c/0x150 memblock_reserve: [0x00000004000000-0x0000000452f400] arm_memblock_init+0xcc/0x150 memblock_reserve: [0x00000000004000-0x00000000008000] arm_memblock_init+0xf0/0x150 memblock_reserve: [0x00000004530000-0x00000004537350] arm_dt_memblock_reserve+0x30/0xb0 MEMBLOCK configuration: memory size = 0x8000000 reserved size = 0x960cdc memory.cnt = 0x1 memory[0x0] [0x00000000000000-0x00000007ffffff], 0x8000000 bytes reserved.cnt = 0x4 reserved[0x0] [0x00000000004000-0x00000000007fff], 0x4000 bytes reserved[0x1] [0x00000000008400-0x0000000042e98b], 0x42658c bytes reserved[0x2] [0x00000004000000-0x0000000452f3ff], 0x52f400 bytes reserved[0x3] [0x00000004530000-0x0000000453734f], 0x7350 bytes Memory policy: ECC disabled, Data cache writeback memblock_reserve: [0x00000007fff000-0x00000008000000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffe000-0x00000007fff000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffdf10-0x00000007ffe000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffc000-0x00000007ffd000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffb000-0x00000007ffc000] memblock_alloc_base_nid+0x68/0x84 memblock_reserve: [0x00000007ffa000-0x00000007ffb000] memblock_alloc_base_nid+0x68/0x84 Note: this only works with the UEFI LinuxLoader. The GRUB code doesn't currently add the UEFI reserved regions to the FDT reserved map. g.

11 years, 5 months

EFI_STUB notes

by Grant Likely

Hi Roy, Here are some very quick notes on what I found on writing UEFI applications. I found a library called "gnuefi" which allows building EFI applications apart from the Tianocore build tree. It looks interesting, but has not been ported to ARM. I don't yet know if it is worthwhile pursuing. http://gnu-efi.sourceforge.net/ As mentioned, the Linux kernel has an EFI stub already. I could tell you which files to look at, but really just doing a "git grep EFI_STUB" in the kernel tree will show you all the files that you need to care about. :-) You'll need to figure out how to get a UEFI PE-COFF header into the LInux kernel zImage wrapper. It shouldn't be too hard. You'll need to look at the startup code in arch/arm/boot/compressed/head.S. The PE-COFF header will need to go somewhere after the start: label. You should be able to see the existing LInux kernel "header" (not much of a header, more of a magic number) about 10 lines down from the start label. That's all I can write at the moment. We can talk more tomorrow. g.

11 years, 6 months

ARMv7-A UEFI runtime services support in Linux

by Leif Lindholm

Terse information, more engineering notes than documentation, and links to sources can be found at: https://wiki.linaro.org/LEG/Engineering/Kernel/UEFI/RuntimeServices Contains a few known bugs, and will need some fundamental discussions/reengineering, but lets us start experimenting. / Leif

11 years, 6 months

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