From: Guo Heyi <heyi.guo@linaro.org>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: edk2-devel@lists.01.org, lersek@redhat.com, leif.lindholm@linaro.org
Subject: Re: [PATCH edk2-platforms 1/2] Platform, Silicon: use DxeRuntimeDebugLibSerialPort for runtime DXE drivers
Date: Tue, 27 Feb 2018 09:50:36 +0800 [thread overview]
Message-ID: <20180227015036.GC2261@SZX1000114654> (raw)
In-Reply-To: <20180224142515.461-1-ard.biesheuvel@linaro.org>
Hi Ard,
Sorry for the late of seeing this patch. I have one question: why don't we
implement a runtime serial port lib, which will switch UART base address in
virtual address map change? I think this will be useful when we want to debug
runtime driver in OS stage. And if we have a runtime version of SerialPortLib,
then we don't need a runtime version of DebugLib which just disable touching
serial port.
Thanks,
Heyi
On Sat, Feb 24, 2018 at 02:25:14PM +0000, Ard Biesheuvel wrote:
> Commit 4bf95a9f361e ("MdeModulePkg/ResetSystemRuntimeDxe: Add more
> debug message") broke the DEBUG build for all platforms that rely on
> MMIO mapped UART devices, since it introduces a DEBUG() print that
> may trigger at runtime, at which such UART devices are usually not
> mapped, resulting in an OS crash.
>
> Given that this mostly only affects ARM and AARCH64, it is not unlikely
> that similar inadvertent breakage will occur again in the future, so
> let's fix this once and for all by switching affected platforms to the
> new DxeRuntimeDebugLibSerialPort DebugLib implementation that takes care
> not to touch the UART hardware after ExitBootServices().
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> ---
> Platform/AMD/OverdriveBoard/OverdriveBoard.dsc | 3 +++
> Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc | 3 +++
> Platform/LeMaker/CelloBoard/CelloBoard.dsc | 3 +++
> Platform/Socionext/DeveloperBox/DeveloperBox.dsc | 3 +++
> Platform/Socionext/SynQuacerEvalBoard/SynQuacerEvalBoard.dsc | 3 +++
> Platform/SoftIron/Overdrive1000Board/Overdrive1000Board.dsc | 3 +++
> Silicon/Hisilicon/Hisilicon.dsc.inc | 3 +++
> Silicon/Marvell/Armada7k8k/Armada7k8k.dsc.inc | 3 +++
> 8 files changed, 24 insertions(+)
>
> diff --git a/Platform/AMD/OverdriveBoard/OverdriveBoard.dsc b/Platform/AMD/OverdriveBoard/OverdriveBoard.dsc
> index 7d85b78642da..348828e18d44 100644
> --- a/Platform/AMD/OverdriveBoard/OverdriveBoard.dsc
> +++ b/Platform/AMD/OverdriveBoard/OverdriveBoard.dsc
> @@ -227,6 +227,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
> MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
> CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf
> +!if $(TARGET) != RELEASE
> + DebugLib|MdePkg/Library/DxeRuntimeDebugLibSerialPort/DxeRuntimeDebugLibSerialPort.inf
> +!endif
>
> [LibraryClasses.common.UEFI_APPLICATION]
> UefiDecompressLib|IntelFrameworkModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf
> diff --git a/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc b/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
> index b026ce3a420a..7cb47937329e 100644
> --- a/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
> +++ b/Platform/ARM/VExpressPkg/ArmVExpress.dsc.inc
> @@ -227,6 +227,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> !if $(SECURE_BOOT_ENABLE) == TRUE
> BaseCryptLib|CryptoPkg/Library/BaseCryptLib/RuntimeCryptLib.inf
> !endif
> +!if $(TARGET) != RELEASE
> + DebugLib|MdePkg/Library/DxeRuntimeDebugLibSerialPort/DxeRuntimeDebugLibSerialPort.inf
> +!endif
>
> [LibraryClasses.ARM, LibraryClasses.AARCH64]
> #
> diff --git a/Platform/LeMaker/CelloBoard/CelloBoard.dsc b/Platform/LeMaker/CelloBoard/CelloBoard.dsc
> index 2468583c0daa..569e444f6b26 100644
> --- a/Platform/LeMaker/CelloBoard/CelloBoard.dsc
> +++ b/Platform/LeMaker/CelloBoard/CelloBoard.dsc
> @@ -211,6 +211,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
> ReportStatusCodeLib|IntelFrameworkModulePkg/Library/DxeReportStatusCodeLibFramework/DxeReportStatusCodeLib.inf
> CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibNull/DxeCapsuleLibNull.inf
> +!if $(TARGET) != RELEASE
> + DebugLib|MdePkg/Library/DxeRuntimeDebugLibSerialPort/DxeRuntimeDebugLibSerialPort.inf
> +!endif
>
> [LibraryClasses.common.UEFI_APPLICATION]
> UefiDecompressLib|IntelFrameworkModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf
> diff --git a/Platform/Socionext/DeveloperBox/DeveloperBox.dsc b/Platform/Socionext/DeveloperBox/DeveloperBox.dsc
> index 8450d7800e43..925ce36d278b 100644
> --- a/Platform/Socionext/DeveloperBox/DeveloperBox.dsc
> +++ b/Platform/Socionext/DeveloperBox/DeveloperBox.dsc
> @@ -208,6 +208,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf
> ResetSystemLib|ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.inf
> BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
> +!if $(TARGET) != RELEASE
> + DebugLib|MdePkg/Library/DxeRuntimeDebugLibSerialPort/DxeRuntimeDebugLibSerialPort.inf
> +!endif
>
> ################################################################################
> #
> diff --git a/Platform/Socionext/SynQuacerEvalBoard/SynQuacerEvalBoard.dsc b/Platform/Socionext/SynQuacerEvalBoard/SynQuacerEvalBoard.dsc
> index 45ab2afc4069..2d5a94ed1dab 100644
> --- a/Platform/Socionext/SynQuacerEvalBoard/SynQuacerEvalBoard.dsc
> +++ b/Platform/Socionext/SynQuacerEvalBoard/SynQuacerEvalBoard.dsc
> @@ -203,6 +203,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
> CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf
> ResetSystemLib|ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.inf
> +!if $(TARGET) != RELEASE
> + DebugLib|MdePkg/Library/DxeRuntimeDebugLibSerialPort/DxeRuntimeDebugLibSerialPort.inf
> +!endif
>
> ################################################################################
> #
> diff --git a/Platform/SoftIron/Overdrive1000Board/Overdrive1000Board.dsc b/Platform/SoftIron/Overdrive1000Board/Overdrive1000Board.dsc
> index f0a7e9794153..3f4c7c8a3eef 100644
> --- a/Platform/SoftIron/Overdrive1000Board/Overdrive1000Board.dsc
> +++ b/Platform/SoftIron/Overdrive1000Board/Overdrive1000Board.dsc
> @@ -217,6 +217,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
> ReportStatusCodeLib|IntelFrameworkModulePkg/Library/DxeReportStatusCodeLibFramework/DxeReportStatusCodeLib.inf
> CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibNull/DxeCapsuleLibNull.inf
> +!if $(TARGET) != RELEASE
> + DebugLib|MdePkg/Library/DxeRuntimeDebugLibSerialPort/DxeRuntimeDebugLibSerialPort.inf
> +!endif
>
> [LibraryClasses.common.UEFI_APPLICATION]
> UefiDecompressLib|IntelFrameworkModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf
> diff --git a/Silicon/Hisilicon/Hisilicon.dsc.inc b/Silicon/Hisilicon/Hisilicon.dsc.inc
> index 9050f29be381..b196322a20e2 100644
> --- a/Silicon/Hisilicon/Hisilicon.dsc.inc
> +++ b/Silicon/Hisilicon/Hisilicon.dsc.inc
> @@ -213,6 +213,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> !ifndef CONFIG_NO_DEBUGLIB
> DebugLib|IntelFrameworkModulePkg/Library/PeiDxeDebugLibReportStatusCode/PeiDxeDebugLibReportStatusCode.inf
> !endif
> +!if $(TARGET) != RELEASE
> + DebugLib|MdePkg/Library/DxeRuntimeDebugLibSerialPort/DxeRuntimeDebugLibSerialPort.inf
> +!endif
>
> [LibraryClasses.AARCH64]
> ArmGenericTimerCounterLib|ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.inf
> diff --git a/Silicon/Marvell/Armada7k8k/Armada7k8k.dsc.inc b/Silicon/Marvell/Armada7k8k/Armada7k8k.dsc.inc
> index ef70b5216727..535cc3ff4c19 100644
> --- a/Silicon/Marvell/Armada7k8k/Armada7k8k.dsc.inc
> +++ b/Silicon/Marvell/Armada7k8k/Armada7k8k.dsc.inc
> @@ -184,6 +184,9 @@ [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
> MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
> CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibNull/DxeCapsuleLibNull.inf
> +!if $(TARGET) != RELEASE
> + DebugLib|MdePkg/Library/DxeRuntimeDebugLibSerialPort/DxeRuntimeDebugLibSerialPort.inf
> +!endif
>
> [LibraryClasses.ARM, LibraryClasses.AARCH64]
> #
> --
> 2.11.0
>
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
next prev parent reply other threads:[~2018-02-27 1:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-24 14:25 [PATCH edk2-platforms 1/2] Platform, Silicon: use DxeRuntimeDebugLibSerialPort for runtime DXE drivers Ard Biesheuvel
2018-02-24 14:25 ` [PATCH edk2-platforms 2/2] Silicon/SynQuacerI2cDxe: remove special runtime treatment of DEBUG()s Ard Biesheuvel
2018-02-26 14:50 ` [PATCH edk2-platforms 1/2] Platform, Silicon: use DxeRuntimeDebugLibSerialPort for runtime DXE drivers Laszlo Ersek
2018-02-27 1:50 ` Guo Heyi [this message]
2018-02-27 9:23 ` Ard Biesheuvel
2018-02-27 10:43 ` Laszlo Ersek
2018-02-27 11:30 ` Guo Heyi
2018-02-27 15:59 ` Laszlo Ersek
2018-02-27 14:21 ` Ard Biesheuvel
2018-02-27 16:09 ` Laszlo Ersek
2018-02-27 16:10 ` Ard Biesheuvel
2018-02-27 17:33 ` Ard Biesheuvel
2018-02-27 17:47 ` Laszlo Ersek
2018-02-27 17:55 ` Ard Biesheuvel
2018-02-27 10:39 ` Leif Lindholm
2018-02-27 10:45 ` Ard Biesheuvel
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