Hi Tiger,
sorry if I was not clear enough in my previous email. But using ARM Trusted
Firmware instead of Bootstrap is the right approach to follow. As I said in my
previous email, I have not had time to update the Tianocore wikipage.
Thanks,
Olivier
________________________________________
From: tiger...@viatech.com.cn [tiger...@viatech.com.cn]
Sent: 20 January 2014 11:21
To: edk2-devel@lists.sourceforge.net
Subject: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
Hi, Oliver:
Based on arm trusted firmware's doc : user-guide.md .
I followed these steps to get a dedicated version uefi code:
git clone -n https://github.com/tianocore/edk2.git
cd edk2
git checkout 75f630347cace34e2d3abed2a5556ba71cfc50a9
After compiled it, I could run it with the following cmd:
./Foundation_v8 --cores=4 --no-secure-memory --visualization --gicv3
--data="./bl1.bin"@0x0 --data="./FVP_AARCH64_EFI.fd"@0x8000000\
It seemed not need ArmPlatformPkg\ArmVExpressPkg\Scripts\uefi-aarch64-bootstrap.
So, why not keep using arm trusted firmware to load UEFI.fd ?
Best wishes,
-----邮件原件-----
发件人: Olivier Martin [mailto:olivier.mar...@arm.com]
发送时间: 2014年1月16日 18:11
收件人: edk2-devel@lists.sourceforge.net
主题: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
Yes, bootstrap should be replaced by ARM Trusted Firmware. I have not
updated the documentation yet.
Have a look at the User Guide to replace bootstrap by Trusted Firmware:
https://github.com/ARM-software/arm-trusted-firmware/blob/master/docs/user-g
uide.md
Thanks,
Olivier
> -----Original Message-----
> From: tiger...@viatech.com.cn [mailto:tiger...@viatech.com.cn]
> Sent: 16 January 2014 01:47
> To: edk2-devel@lists.sourceforge.net
> Subject: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
>
> Hi, Oliver:
> Thanks for your answer!
> I have tried to get latest uefi code from
> https://svn.code.sf.net/p/edk2/code/trunk/edk2, and it compiled
> successfully.
> I aslo boot it with FVP model.
>
> I have a question about bootstrap code:
> 1. ArmPlatformPkg\ArmVExpressPkg\Scripts\uefi-aarch64-bootstrap
> Has these code replaced arm trusted firmware?(
> https://github.com/ARM-software/arm-trusted-firmware)
> Because I didn't find any arm trusted firmware output msg when
> running FVP model.
>
> Best wishes,
> -----邮件原件-----
> 发件人: Olivier Martin [mailto:olivier.mar...@arm.com]
> 发送时间: 2014年1月15日 20:52
> 收件人: edk2-devel@lists.sourceforge.net
> 主题: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
>
> Hi Tiger,
>
> Yes we do not need to patch the BaseTools. I have updated the
> instructions.
>
> Where did you get the sources from? From Linaro? We do not have the
> directory 'ArmPkg/Drivers/AcpiTables' in subversion...
>
> Thanks,
> Olivier
>
> > -----Original Message-----
> > From: tiger...@viatech.com.cn [mailto:tiger...@viatech.com.cn]
> > Sent: 15 January 2014 08:20
> > To: edk2-devel@lists.sourceforge.net
> > Subject: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
> >
> > Hi, Oliver:
> > Based on this wiki:
> >
> http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=ArmPlat
> > formPkg/AArch64#Introduction
> >
> > 1. I got latest edkii code, and tried to patch BaseTools, but has
> > failed patch tip message.
> > . edksetup.sh `pwd`/BaseTools
> > patch -p1 < ArmPlatformPkg/Documentation/patches/BaseTools-Pending-
> > Patches.patch
> >
> > Does this patch has merged into ekdii's master branch?
> > Not need patch it again?
> >
> > 2. failed to compile ArmVExpress-RTSM-AEMv8Ax4-foundation
> > make: *** [/home/lion/ARMv8/UEFI/uefi/Build/ArmVExpress-RTSM-
> > AEMv8Ax4-
> > foundation/DEBUG_GCC47/AARCH64/ArmPkg/Drivers/AcpiTables/foundation-
> > v8/AcpiTables/OUTPUT/Csrt.acpi] Error 1
> >
> >
> > build.py...
> > : error 7000: Failed to execute command
> > make tbuild [/home/lion/ARMv8/UEFI/uefi/Build/ArmVExpress-
> RTSM-
> > AEMv8Ax4-
> > foundation/DEBUG_GCC47/AARCH64/ArmPkg/Drivers/AcpiTables/foundation-
> > v8/AcpiTables]
> >
> >
> > build.py...
> > : error F002: Failed to build module
> >
> > /home/lion/ARMv8/UEFI/uefi/ArmPkg/Drivers/AcpiTables/foundation-
> > v8/AcpiTables.inf [AARCH64, GCC47, DEBUG]
> >
> >
> > Best wishes,
> > -----邮件原件-----
> > 发件人: Olivier Martin [mailto:olivier.mar...@arm.com]
> > 发送时间: 2014年1月14日 2:36
> > 收件人: edk2-devel@lists.sourceforge.net
> > 主题: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
> >
> > Thanks Bhupesh to have replied to the email. Here are some
> > clarifications.
> >
> > We should not mix ARMv8 / AArch64 / AArch32 / ARMv7.
> >
> > ARMv7 and ARMv8 are the revisions of the ARM Architecture.
> > - ARMv7 (version 7) is 32bit only.
> > - ARMv8 (version 8) covers 32bit and 64bit ARM Architectures.
> >
> > - AArch32 and AArch64 are respectively the 32bit and 64bit version of
> > ARM
> > architecture.
> > - AArch32 (defined by ARMv8) has some additions to the 32bit version
> of
> > the
> > ARM Architecture in ARMv7.
> >
> > AArch64 introduces the concept of Exception Level (EL). Most ELs can
> be
> > run
> > in either 32bit (AArch32) or 64bit (AArch64) mode.
> > - EL3 (highest exception level)
> > - (Non-Secure) EL2 (for virtualization support)
> > - Secure and Non-Secure EL1
> > - Secure and Non-Secure EL0 (lowest exception level)
> >
> > (I think - need to double check with ARMv8 spec) Any exception level
> > can run
> > in 32bit mode (AArch32).
> > But if an exception level is in 32bit mode then all the lowest
> > exception
> > levels are in 32bit mode.
> >
> > 'ARM Trusted Firmware' is an open source firmware that runs and
> support
> > the
> > Secure Exception Levels (EL3, Secure EL1, Secure EL0).
> > UEFI (and its Tianocore Open Source implementation) only covers the
> > Non-Secure Exception Level. UEFI should run at the highest Non-Secure
> > exception level (probably EL2 or Non-Secure EL1 if there is no
> support
> > for
> > EL2). 'ARM Trusted Firmware' does not support (yet) 32bit secure
> space.
> >
> > There is nothing that prevents to run 'ARM Trusted Firmware' in 64bit
> > mode
> > (EL3) and start UEFI from there in 32bit mode (EL2).
> > Note: This use case (starting into Non-Secure 32bit mode) has not
> been
> > validated yet.
> >
> > If your SoC support AArch64 and AArch32 then it will always start in
> > AArch64
> > mode.
> >
> > Here is wikipage to explain how to build and run UEFI on the
> Foundation
> > Model:
> >
> https://sourceforge.net/apps/mediawiki/tianocore/index.php?title=ArmPla
> > tform
> > Pkg/AArch64
> >
> > Let me know if you need further clarifications,
> > Olivier
> >
> > > -----Original Message-----
> > > From: tiger...@viatech.com.cn [mailto:tiger...@viatech.com.cn]
> > > Sent: 13 January 2014 04:56
> > > To: edk2-devel@lists.sourceforge.net
> > > Subject: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
> > >
> > > Hi, sharma:
> > > Thank you very much!
> > > I got it:
> > > Arm-trusted-firmware is the first running code on Foundation model.
> > > It runs at aarch64 execution state.
> > >
> > > Best wishes,
> > >
> > >
> > > -----邮件原件-----
> > > 发件人: bhupesh.sha...@freescale.com
> > > [mailto:bhupesh.sha...@freescale.com]
> > > 发送时间: 2014年1月13日 12:48
> > > 收件人: 'edk2-devel@lists.sourceforge.net'
> > > 主题: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
> > >
> > > Hi Tiger,
> > >
> > > Yes, the Trusted firmware runs in EL3 and calls the UEFI boot
> > firmware
> > > which runs in EL2.
> > >
> > > In the trusted firmware project https://github.com/ARM-
> software/arm-
> > > trusted-firmware
> > > you will find the instructions to launch UEFI from this firmware on
> > the
> > > ARM FVPs (fixed Virtual
> > > Platforms) - for example the FVP_Base_AEMv8A-AEMv8A, in the
> readme.md
> > > file
> > > (https://github.com/ARM-software/arm-trusted-
> > > firmware/blob/master/readme.md)
> > >
> > > Note that the Trusted Firmware has only been tested only on 64-bit
> > > versions of the ARM FVPs, so
> > > don't know how you will use to test the same for your 32-bit
> AArch32
> > > code.
> > >
> > > Regards,
> > > Bhupesh
> > >
> > >
> > > > -----Original Message-----
> > > > From: tiger...@viatech.com.cn [mailto:tiger...@viatech.com.cn]
> > > > Sent: Monday, January 13, 2014 10:10 AM
> > > > To: edk2-devel@lists.sourceforge.net
> > > > Subject: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
> > > >
> > > > Hi, sharma:
> > > > I used arm-none-linux-gnueabi-gcc-4.5.2 to compile 32bit uefi
> code.
> > > > I have a question about foundation model:
> > > > 1. There is an Open Source implementation of the Trusted/Secure
> > > Firmware:
> > > > https://github.com/ARM-software/arm-trusted-firmware
> > > > So, what is the relationship between arm-trusted-firmware and
> > > aarch64
> > > > uefi boot code.
> > > > Arm-trusted-firmware will load aarch64 uefi boot code and
> jump
> > to
> > > run
> > > > it?
> > > >
> > > > Best wishes,
> > > > -----邮件原件-----
> > > > 发件人: bhupesh.sha...@freescale.com
> > > > [mailto:bhupesh.sha...@freescale.com]
> > > > 发送时间: 2014年1月13日 12:02
> > > > 收件人: edk2-devel@lists.sourceforge.net
> > > > 主题: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
> > > >
> > > > Hi Tiger,
> > > >
> > > > You can use the AArch64 foundation model support code in the EDK2
> > > code
> > > > base to write reference code for your ARMv8 SoC.
> > > >
> > > > Also which toolchain do you use for compiling your AArch32 (32-
> bit
> > > code)?
> > > >
> > > > Regards,
> > > > Bhupesh
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: tiger...@viatech.com.cn [mailto:tiger...@viatech.com.cn]
> > > > > Sent: Monday, January 13, 2014 9:16 AM
> > > > > To: edk2-devel@lists.sourceforge.net
> > > > > Subject: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
> > > > >
> > > > > Hi, sharma:
> > > > > Thanks for your answer!
> > > > > I described my understanding on current ARM UEFI code:
> > > > > 1. Most ARM UEFI code package is based on ARMv7 SOCs.
> > > > > Because of lacking ARMv8 development board, so enthusiast
> > > ported
> > > > > uefi code on 32bit SOC.
> > > > > 2. ARMv8 supports aarch32 state.
> > > > > So, if ARMv8 SOC powered to aarch32 state:
> > > > > Developer could use current 32bit uefi code as code base to
> > > boot
> > > > > to uefi shell environment.
> > > > > 3. at uefi shell environment, there are 2 methods to boot 64bit
> > > linux
> > > > > kernel.
> > > > > (1) switch to aarch64 state, then boot to linux kernel's
> > entry
> > > > point.
> > > > > (2) linux kernel's entry point included code to switch
> > itself's
> > > > > execute state to aarch64.if this assumption exist, uefi
> > bootloader
> > > > > just keep aarch32 state.
> > > > >
> > > > > Best wishes,
> > > > > -----邮件原件-----
> > > > > 发件人: bhupesh.sha...@freescale.com
> > > > > [mailto:bhupesh.sha...@freescale.com]
> > > > > 发送时间: 2014年1月13日 11:26
> > > > > 收件人: 'edk2-devel@lists.sourceforge.net'
> > > > > 抄送: 'oliviermar...@users.sourceforge.net'
> > > > > 主题: Re: [edk2] [edk2-ARM] ARMv8 bootloader question
> > > > >
> > > > > Hi Tiger,
> > > > >
> > > > > AFAIK, the AArch64 ISA is written from scratch for 64-bit
> > support.
> > > > > Although it is backward compatible with AArch32 and binaries
> > > compiled
> > > > > for
> > > > > AArch32 (ARMv7 compatible) are supposed to run well on the
> ARMv8
> > > > > machine running in AArch32 mode.
> > > > >
> > > > > However, as per my understanding (and Olivier can correct me if
> I
> > > am
> > > > > wrong here), the UEFI code for ARMv8 executes in AArch64 mode -
> > > > > usually if the ARM core boots up in AArch64 in EL3, bootloaders
> > > like
> > > > > UEFI/u-boot also execute in AArch64 EL3 or EL2.
> > > > >
> > > > > Regards,
> > > > > Bhupesh
> > > > >
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: tiger...@viatech.com.cn
> [mailto:tiger...@viatech.com.cn]
> > > > > > Sent: Monday, January 13, 2014 6:32 AM
> > > > > > To: edk2-devel@lists.sourceforge.net
> > > > > > Cc: oliviermar...@users.sourceforge.net
> > > > > > Subject: [edk2] [edk2-ARM] ARMv8 bootloader question
> > > > > >
> > > > > > Hi, Oliver:
> > > > > > I have a question abourt ARMv8 CPU's bootloader.
> > > > > > ARMv8 supports: AARCH32 / AARCH64
> > > > > > Take an example:
> > > > > > An ARMv8 SOC, when power up / reset, its default state is :
> > > AARCH32
> > > > > > Then, could i still run an old arm uefi bootloader which
> > written
> > > by
> > > > > > ARMv7 instruction set?
> > > > > > I will switch ARMv8 SOC to AARCH64 before jumping into linux
> > > kernel.
> > > > > > Is it possible?
> > > > > >
> > > > > > Best wishes,
> > > > > >
> > > > > > -------------------------------------------------------------
> --
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> >
> http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.
> > > > > > clk
> > > > > > trk
> > > > > > _______________________________________________
> > > > > > edk2-devel mailing list
> > > > > > edk2-devel@lists.sourceforge.net
> > > > > > https://lists.sourceforge.net/lists/listinfo/edk2-devel
> > > > > >
> > > > >
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> > > > > ---------------------------------------------------------------
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> > > > > trk
> > > > > _______________________________________________
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> > > > > edk2-devel@lists.sourceforge.net
> > > > > https://lists.sourceforge.net/lists/listinfo/edk2-devel
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> > > > > ---------------------------------------------------------------
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> > > > > trk
> > > > > _______________________________________________
> > > > > edk2-devel mailing list
> > > > > edk2-devel@lists.sourceforge.net
> > > > > https://lists.sourceforge.net/lists/listinfo/edk2-devel
> > > > -----------------------------------------------------------------
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> > > > trk
> > > > _______________________________________________
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> > > > edk2-devel@lists.sourceforge.net
> > > > https://lists.sourceforge.net/lists/listinfo/edk2-devel
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> > > > trk
> > > > _______________________________________________
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> > > > https://lists.sourceforge.net/lists/listinfo/edk2-devel
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