From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Miccio Subject: [GSoC] Xen on ARM: create multiple guests from device tree Date: Tue, 21 Mar 2017 20:09:57 +0100 Message-ID: <58D17A85.5050709@gmail.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============6201102708004940599==" Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqPAQ-000535-3t for xen-devel@lists.xenproject.org; Tue, 21 Mar 2017 19:10:02 +0000 Received: by mail-wm0-f48.google.com with SMTP id n11so19248439wma.1 for ; Tue, 21 Mar 2017 12:10:00 -0700 (PDT) List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini , Julien Grall Cc: Stefano@aporeto.com, xen-devel@lists.xenproject.org, Dario.faggioli@citrix.com, Lars.kurt@citrix.com List-Id: xen-devel@lists.xenproject.org This is a multi-part message in MIME format. --===============6201102708004940599== Content-Type: multipart/alternative; boundary="------------090707020208010701020400" This is a multi-part message in MIME format. --------------090707020208010701020400 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Hi, I'm an undergraduate student from the Computer Science Bachelor's Degree of the University of Modena and Reggio Emilia (Italy). I'm very interested in the "Xen on ARM: create multiple guests from device tree" project. A year ago I started a project on the "Hikey" board with the Android operating system in order to integrate BFQ - which is a proportional-share storage-I/O scheduler - in it improving the device performances. Now the project is still in development and it is supervised by my professor which, also, told me about GSoC. Since I studied the C language for a full year at university and I already had to deal with kernel-stuffs, cross-compiling and so on, I chose this project. Since I'm not very familiar with the "device tree" notion, I'm wondering if you could give me some suggestions on where I could start from. The first thing I will do is to install xen and start to familiarize with it. Any advice regarding this project will be really appreciated. Best regards, Luca --------------090707020208010701020400 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 8bit Hi,
I'm an undergraduate student from the Computer Science Bachelor's Degree
of the University of Modena and Reggio Emilia (Italy).

I'm very interested in the "Xen on ARM: create multiple guests from device tree"
project.
A year ago I started a project on the "Hikey" board with the Android operating
system in order to integrate BFQ - which is a proportional-share storage-I/O
scheduler - in it  improving the device performances. Now the project is still in
development and it is supervised by my professor which, also, told me about GSoC.
Since I studied the C language for a full year at university and I already had to deal
with kernel-stuffs, cross-compiling and so on, I chose this project.

Since I'm not very familiar with the "device tree" notion, I'm wondering if you could give me
some suggestions on where I could start from.

The first thing I will do is to install xen and start to familiarize with it.
Any advice regarding this project will be really appreciated.

Best regards,

Luca

--------------090707020208010701020400-- --===============6201102708004940599== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --===============6201102708004940599==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Tue, 21 Mar 2017 13:36:38 -0700 (PDT) Message-ID: References: <58D17A85.5050709@gmail.com> Mime-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323329-189462265-1490127691=:11679" Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqQWL-00020v-19 for xen-devel@lists.xenproject.org; Tue, 21 Mar 2017 20:36:45 +0000 In-Reply-To: <58D17A85.5050709@gmail.com> Content-ID: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Luca Miccio Cc: Stefano Stabellini , Lars.kurt@citrix.com, andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano@aporeto.com, Julien Grall , xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-189462265-1490127691=:11679 Content-Type: TEXT/PLAIN; CHARSET=UTF-8 Content-Transfer-Encoding: 8BIT Content-ID: On Tue, 21 Mar 2017, Luca Miccio wrote: > Hi, > I'm an undergraduate student from the Computer Science Bachelor's Degree > of the University of Modena and Reggio Emilia (Italy). > > I'm very interested in the "Xen on ARM: create multiple guests from device tree" > project. > A year ago I started a project on the "Hikey" board with the Android operating > system in order to integrate BFQ - which is a proportional-share storage-I/O > scheduler - in it  improving the device performances. Now the project is still in > development and it is supervised by my professor which, also, told me about GSoC. > Since I studied the C language for a full year at university and I already had to deal > with kernel-stuffs, cross-compiling and so on, I chose this project. > > Since I'm not very familiar with the "device tree" notion, I'm wondering if you could give me > some suggestions on where I could start from. > > The first thing I will do is to install xen and start to familiarize with it. > Any advice regarding this project will be really appreciated. Hello Luca, Thanks for your interest in Xen on ARM! Like you wrote, I would start by compiling Xen from source and installing it on your board. The HiKey is a decent option, but it can be difficult to work with if you don't have serial access. I know that uart connectors for the HiKey are sold separetely: http://www.96boards.org/product/uarts/ Otherwise, you could use the ARMv8 Foundation Platform, which is a free (as in beer) software emulator: https://developer.arm.com/products/system-design/fixed-virtual-platforms https://community.arm.com/processors/b/blog/posts/virtualization-on-arm-with-xen Unfortunately all our guides on installing Xen on the Foundation Model are outdated, but I know that Andre (CC'ed) is using it for development. He should be able to help you if you run into any issues. After you complete the setup of the building and testing environments, the next thing to do is getting familiar with the code. The best way to do that is by fixing any of the bugs or implementing any of the features on the Xen Project Tracker: https://xenproject.atlassian.net/projects/XEN/issues Most of the items listed are large projects, but some of them are pretty small, small enough to be a starting point. For example XEN-29 (Add -fstack-protector support to the hypervisor), or XEN-10 (Clean target makefile should remove all temporary for every architecture). Cheers, Stefano --8323329-189462265-1490127691=:11679 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --8323329-189462265-1490127691=:11679-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Miccio Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Wed, 22 Mar 2017 20:45:22 +0100 Message-ID: References: <58D17A85.5050709@gmail.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1717508204475365535==" Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqmCE-0002EG-KK for xen-devel@lists.xenproject.org; Wed, 22 Mar 2017 19:45:26 +0000 Received: by mail-qt0-f196.google.com with SMTP id n37so26683470qtb.3 for ; Wed, 22 Mar 2017 12:45:23 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini Cc: Lars.kurt@citrix.com, andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org --===============1717508204475365535== Content-Type: multipart/alternative; boundary=001a113773b44cdc4c054b5700eb --001a113773b44cdc4c054b5700eb Content-Type: text/plain; charset=UTF-8 Hi Stefano, 2017-03-21 21:36 GMT+01:00 Stefano Stabellini : > On Tue, 21 Mar 2017, Luca Miccio wrote: > > Hi, > > I'm an undergraduate student from the Computer Science Bachelor's Degree > > of the University of Modena and Reggio Emilia (Italy). > > > > I'm very interested in the "Xen on ARM: create multiple guests from > device tree" > > project. > > A year ago I started a project on the "Hikey" board with the Android > operating > > system in order to integrate BFQ - which is a proportional-share > storage-I/O > > scheduler - in it improving the device performances. Now the project is > still in > > development and it is supervised by my professor which, also, told me > about GSoC. > > Since I studied the C language for a full year at university and I > already had to deal > > with kernel-stuffs, cross-compiling and so on, I chose this project. > > > > Since I'm not very familiar with the "device tree" notion, I'm wondering > if you could give me > > some suggestions on where I could start from. > > > > The first thing I will do is to install xen and start to familiarize > with it. > > Any advice regarding this project will be really appreciated. > > Hello Luca, > > Thanks for your interest in Xen on ARM! Like you wrote, I would start by > compiling Xen from source and installing it on your board. The HiKey is > a decent option, but it can be difficult to work with if you don't have > serial access. I know that uart connectors for the HiKey are sold > separetely: > > http://www.96boards.org/product/uarts/ > Otherwise, you could use the ARMv8 Foundation Platform, which is a > free (as in beer) software emulator: > > https://developer.arm.com/products/system-design/fixed-virtual-platforms > https://community.arm.com/processors/b/blog/posts/ > virtualization-on-arm-with-xen > > I chose this option for now Unfortunately all our guides on installing Xen on the Foundation Model > are outdated, but I know that Andre (CC'ed) is using it for development. > He should be able to help you if you run into any issues. > I tried to install and setting up xen with the blog post that you have mentioned above and i have some issues when compiling the boot wrapper with the git repository provided in the post. In particular i get this error when executing this command: $ make CROSS_COMPILE=aarch64-linux-gnu- FDT_SRC=foundation-v8.dts IMAGE=xen-system.axf This is the error i get: aarch64-linux-gnu-gcc -DCNTFRQ=0x01800000 -DUART_BASE=0x1c090000 -DSYSREGS_BASE=0x1c010000 -DGIC_DIST_BASE=0x2c001000 -DGIC_CPU_BASE=0x2c002000 -c -o boot.xen.o boot.S -DXEN aarch64-linux-gnu-gcc -DPHYS_OFFSET=0x80000000 -DMBOX_OFFSET=0xfff8 -DBOOT=boot.xen.o -DXEN_OFFSET=0xA00000 -DKERNEL_OFFSET=0x80000 -DFDT_OFFSET=0x08000000 -DFS_OFFSET=0x10000000 -DXEN=Xen -DKERNEL=Image -DFILESYSTEM=filesystem.cpio.gz -E -P -C -o model.xen.lds model.lds.S aarch64-linux-gnu-gcc -DCNTFRQ=0x01800000 -DUART_BASE=0x1c090000 -DSYSREGS_BASE=0x1c010000 -DGIC_DIST_BASE=0x2c001000 -DGIC_CPU_BASE=0x2c002000 -c -o boot.o boot.S aarch64-linux-gnu-gcc -DPHYS_OFFSET=0x80000000 -DMBOX_OFFSET=0xfff8 -DBOOT=boot.o -DKERNEL_OFFSET=0x80000 -DFDT_OFFSET=0x08000000 -DFS_OFFSET=0x10000000 -DKERNEL=Image -DFILESYSTEM=filesystem.cpio.gz -E -P -C -o model.lds model.lds.S aarch64-linux-gnu-ld -o xen-system.axf --script=model.xen.lds aarch64-linux-gnu-ld: section .xen LMA [0000000080a00000,0000000080ac814f] overlaps section .kernel LMA [0000000080080000,0000000080f009ff] Makefile:78: set di istruzioni per l'obiettivo "xen-system.axf" non riuscito make: *** [xen-system.axf] Errore 1 Clearly there is a problem with the offset of xen section but i can't figure out how to solve it. I booted correctly a different kernel image with another .axf file only to test the Foundation Model and it worked with no problems. It maybe be helpful my toolchain version: aarch64-linux-gnu-gcc (Debian 6.3.0-9) 6.3.0 20170316 I am using all the file provided by the post at the link ( in particular the Foundation-v8.dts file): https://community.arm.com/cfs-file/__key/telligent-evolution-components-attachments/01-2142-00-00-00-00-89-21/2972.zip If you need any type of information, please ask. However I have correctly compiled xen from source on my laptop and i am trying to become familiar with the hypervisor itself. > > After you complete the setup of the building and testing environments, > the next thing to do is getting familiar with the code. The best way to > do that is by fixing any of the bugs or implementing any of the features > on the Xen Project Tracker: > > https://xenproject.atlassian.net/projects/XEN/issues > > Most of the items listed are large projects, but some of them are pretty > small, small enough to be a starting point. For example XEN-29 (Add > -fstack-protector support to the hypervisor), or XEN-10 (Clean target > makefile should remove all temporary for every architecture). > > I took a look at the list and i have already fixed the XEN-10 task. If it's not a problem i would submit the patch for this small fix, while i am figuring out how to solve my compilation issue described above. Cheers, > > Stefano Best regards, Luca --001a113773b44cdc4c054b5700eb Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Stefano,

2017-03-21 21:36 GMT+01:00 Stefano Stabellini = <sstabellini= @kernel.org>:
On Tue, 21 Mar 2017, Luca Miccio wrote:
> Hi,
> I'm an undergraduate student from the Computer Science Bachelor= 9;s Degree
> of the University of Modena and Reggio Emilia (Italy).
>
> I'm very interested in the "Xen on ARM: create multiple guest= s from device tree"
> project.
> A year ago I started a project on the "Hikey" board with the= Android operating
> system in order to integrate BFQ - which is a proportional-share stora= ge-I/O
> scheduler - in it=C2=A0 improving the device performances. Now the pro= ject is still in
> development and it is supervised by my professor which, also, told me = about GSoC.
> Since I studied the C language for a full year at university and I alr= eady had to deal
> with kernel-stuffs, cross-compiling and so on, I chose this project. >
> Since I'm not very familiar with the "device tree" notio= n, I'm wondering if you could give me
> some suggestions on where I could start from.
>
> The first thing I will do is to install xen and start to familiarize w= ith it.
> Any advice regarding this project will be really appreciated.

Hello Luca,

Thanks for your interest in Xen on ARM! Like you wrote, I would start by compiling Xen from source and installing it on your board. The HiKey is
a decent option, but it can be difficult to work with if you don't have=
serial access. I know that uart connectors for the HiKey are sold
separetely:

http://www.96boards.org/product/uarts/=C2=A0
Otherwise, you could use the ARMv8 Foundation Platform, which is a
free (as in beer) software emulator:

https://developer.arm.com/products/system-design/fixed-virtual-platforms
https://community.ar= m.com/processors/b/blog/posts/virtualization-on-arm-with-xen<= br>
=C2=A0
I chose this option for now=C2=A0

Unfortunately all our guides on installing Xen on the Foundation Model
are outdated, but I know that Andre (CC'ed) is using it for development= .
He should be able to help you if you run into any issues.
<= div>
I tried to install and setting up xen with the blog post= that you have mentioned=C2=A0
above and i have some issues when = compiling the boot wrapper with=C2=A0
the git repository provided= in the post.

In particular i get this error when = executing this command:
$ make CROSS_COMPILE=3Daarch64-linux-gnu-= FDT_SRC=3Dfoundation-v8.dts IMAGE=3Dxen-system.axf

This is the error i get:

aarch64-linux-= gnu-gcc =C2=A0-DCNTFRQ=3D0x01800000 -DUART_BASE=3D0x1c090000 -DSYSREGS_BASE=3D0= x1c010000 -DGIC_DIST_BASE=3D0x2c001000 -DGIC_CPU_BASE=3D0x2c002000 -c -o bo= ot.xen.o boot.S -DXEN
aarch64-linux-gnu-gcc =C2=A0-DPHYS_OFFSET= =3D0x80000000 -DMBOX_OFFSET=3D0xfff8 -DBOOT=3Dboot.xen.o -DXEN_OFFSET=3D0xA= 00000 -DKERNEL_OFFSET=3D0x80000 -DFDT_OFFSET=3D0x08000000 -DFS_OFFSET=3D0x1= 0000000 -DXEN=3DXen -DKERNEL=3DImage -DFILESYSTEM=3Dfilesystem.cpio.gz -E -= P -C -o model.xen.lds model.lds.S
aarch64-linux-gnu-gcc =C2=A0-DC= NTFRQ=3D0x01800000 -DUART_BASE=3D0x1c090000 -DSYSREGS_BASE=3D0x1c010000 -DGIC_D= IST_BASE=3D0x2c001000 -DGIC_CPU_BASE=3D0x2c002000 -c -o boot.o boot.S
=
aarch64-linux-gnu-gcc =C2=A0-DPHYS_OFFSET=3D0x80000000 -DMBOX_OFFSET= =3D0xfff8 -DBOOT=3Dboot.o -DKERNEL_OFFSET=3D0x80000 -DFDT_OFFSET=3D0x080000= 00 -DFS_OFFSET=3D0x10000000 -DKERNEL=3DImage -DFILESYSTEM=3Dfilesystem.cpio= .gz -E -P -C -o model.lds model.lds.S
aarch64-linux-gnu-ld -o xen= -system.axf --script=3Dmodel.xen.lds
aarch64-linux-gnu-ld: sectio= n .xen LMA [0000000080a00000,0000000080ac814f] overlaps section .kernel LMA= [0000000080080000,0000000080f009ff]
Makefile:78: set di istruzio= ni per l'obiettivo "xen-system.axf" non riuscito
ma= ke: *** [xen-system.axf] Errore 1

Clearly th= ere is a problem with the offset of xen section but i can't figure out = how to solve it.

I booted correctly a different ke= rnel image with another .axf file only to test the Foundation Model
and it worked with no problems.

It maybe be hel= pful my toolchain version:
=C2=A0aarch64-linux-gnu-gcc (Debian 6.= 3.0-9) 6.3.0 20170316

I am using all the file = provided by the post at the link ( in particular the Foundation-v8.dts file= ):

If you n= eed any type of information, please ask.


=
However I have correctly compiled xen from source =C2=A0on my la= ptop and i am trying to become familiar with the hypervisor itself.

After you complete the setup of the building and testing environments,
the next thing to do is getting familiar with the code. The best way to
do that is by fixing any of the bugs or implementing any of the features on the Xen Project Tracker:

https://xenproject.atlassian.net/projects/X= EN/issues

Most of the items listed are large projects, but some of them are pretty small, small enough to be a starting point. For example XEN-29 (Add
-fstack-protector support to the hypervisor), or XEN-10 (Clean target
makefile should remove all temporary for every architecture).

I took a look at the list and i have already fixed th= e XEN-10 task. If it's not a problem =C2=A0i=C2=A0
would subm= it the patch for this small fix, while i am figuring out how to solve my co= mpilation
issue described above.

Cheers,

Stefano

Best regards,=C2=A0

<= /div>
Luca=C2=A0

--001a113773b44cdc4c054b5700eb-- --===============1717508204475365535== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --===============1717508204475365535==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Wed, 22 Mar 2017 20:11:08 +0000 Message-ID: References: <58D17A85.5050709@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqmbC-0004Mn-PC for xen-devel@lists.xenproject.org; Wed, 22 Mar 2017 20:11:14 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Luca Miccio , Stefano Stabellini Cc: Lars.kurt@citrix.com, andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org CgpPbiAyMi8wMy8yMDE3IDE5OjQ1LCBMdWNhIE1pY2NpbyB3cm90ZToKPiBIaSBTdGVmYW5vLAoK SGVsbG8gTHVjYSwKCj4gYWFyY2g2NC1saW51eC1nbnUtZ2NjICAtRENOVEZSUT0weDAxODAwMDAw LURVQVJUX0JBU0U9MHgxYzA5MDAwMAo+IC1EU1lTUkVHU19CQVNFPTB4MWMwMTAwMDAgLURHSUNf RElTVF9CQVNFPTB4MmMwMDEwMDAKPiAtREdJQ19DUFVfQkFTRT0weDJjMDAyMDAwIC1jIC1vIGJv b3QueGVuLm8gYm9vdC5TIC1EWEVOCj4gYWFyY2g2NC1saW51eC1nbnUtZ2NjICAtRFBIWVNfT0ZG U0VUPTB4ODAwMDAwMDAgLURNQk9YX09GRlNFVD0weGZmZjgKPiAtREJPT1Q9Ym9vdC54ZW4ubyAt RFhFTl9PRkZTRVQ9MHhBMDAwMDAgLURLRVJORUxfT0ZGU0VUPTB4ODAwMDAKPiAtREZEVF9PRkZT RVQ9MHgwODAwMDAwMCAtREZTX09GRlNFVD0weDEwMDAwMDAwIC1EWEVOPVhlbiAtREtFUk5FTD1J 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lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqnxo-0000uj-97 for xen-devel@lists.xenproject.org; Wed, 22 Mar 2017 21:38:40 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Julien Grall Cc: Stefano Stabellini , Lars.kurt@citrix.com, andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Luca Miccio , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org SGkgTHVjYSwKCnBsZWFzZSBkb24ndCB1c2UgSFRNTCBlbWFpbHMuCgoKT24gV2VkLCAyMiBNYXIg MjAxNywgSnVsaWVuIEdyYWxsIHdyb3RlOgo+IE9uIDIyLzAzLzIwMTcgMTk6NDUsIEx1Y2EgTWlj Y2lvIHdyb3RlOgo+ID4gSGkgU3RlZmFubywKPiAKPiBIZWxsbyBMdWNhLAo+IAo+ID4gYWFyY2g2 NC1saW51eC1nbnUtZ2NjICAtRENOVEZSUT0weDAxODAwMDAwLURVQVJUX0JBU0U9MHgxYzA5MDAw MAo+ID4gLURTWVNSRUdTX0JBU0U9MHgxYzAxMDAwMCAtREdJQ19ESVNUX0JBU0U9MHgyYzAwMTAw MAo+ID4gLURHSUNfQ1BVX0JBU0U9MHgyYzAwMjAwMCAtYyAtbyBib290Lnhlbi5vIGJvb3QuUyAt 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X19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlz dHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg== From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Miccio Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Thu, 23 Mar 2017 01:01:03 +0100 Message-ID: <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> References: <58D17A85.5050709@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 10.0 \(3226\)) Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqqBf-0002OC-5j for xen-devel@lists.xenproject.org; Thu, 23 Mar 2017 00:01:07 +0000 Received: by mail-wm0-f67.google.com with SMTP id z133so13566239wmb.2 for ; Wed, 22 Mar 2017 17:01:05 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini Cc: andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org SGkgU3RlZmFubyBhbmQgSnVsaWVuLAoKPiBJbCBnaW9ybm8gMjIgbWFyIDIwMTcsIGFsbGUgb3Jl IDIyOjM4LCBTdGVmYW5vIFN0YWJlbGxpbmkgPHNzdGFiZWxsaW5pQGtlcm5lbC5vcmc+IGhhIHNj cml0dG86Cj4gCj4gSGkgTHVjYSwKPiAKPiBwbGVhc2UgZG9uJ3QgdXNlIEhUTUwgZW1haWxzLgo+ IAo+IApTb3JyeSBmb3IgdGhhdC4KCj4gT24gV2VkLCAyMiBNYXIgMjAxNywgSnVsaWVuIEdyYWxs IHdyb3RlOgo+PiBPbiAyMi8wMy8yMDE3IDE5OjQ1LCBMdWNhIE1pY2NpbyB3cm90ZToKPj4+IEhp IFN0ZWZhbm8sCj4+IAo+PiBIZWxsbyBMdWNhLAo+PiAKPj4+IGFhcmNoNjQtbGludXgtZ251LWdj YyAgLURDTlRGUlE9MHgwMTgwMDAwMC1EVUFSVF9CQVNFPTB4MWMwOTAwMDAKPj4+IC1EU1lTUkVH U19CQVNFPTB4MWMwMTAwMDAgLURHSUNfRElTVF9CQVNFPTB4MmMwMDEwMDAKPj4+IC1ER0lDX0NQ VV9CQVNFPTB4MmMwMDIwMDAgLWMgLW8gYm9vdC54ZW4ubyBib290LlMgLURYRU4KPj4+IGFhcmNo NjQtbGludXgtZ251LWdjYyAgLURQSFlTX09GRlNFVD0weDgwMDAwMDAwIC1ETUJPWF9PRkZTRVQ9 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andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org T24gVGh1LCAyMyBNYXIgMjAxNywgTHVjYSBNaWNjaW8gd3JvdGU6Cj4gSGkgU3RlZmFubyBhbmQg SnVsaWVuLAo+IAo+ID4gSWwgZ2lvcm5vIDIyIG1hciAyMDE3LCBhbGxlIG9yZSAyMjozOCwgU3Rl ZmFubyBTdGFiZWxsaW5pIDxzc3RhYmVsbGluaUBrZXJuZWwub3JnPiBoYSBzY3JpdHRvOgo+ID4g Cj4gPiBIaSBMdWNhLAo+ID4gCj4gPiBwbGVhc2UgZG9uJ3QgdXNlIEhUTUwgZW1haWxzLgo+ID4g Cj4gPiAKPiBTb3JyeSBmb3IgdGhhdC4KPiAKPiA+IE9uIFdlZCwgMjIgTWFyIDIwMTcsIEp1bGll biBHcmFsbCB3cm90ZToKPiA+PiBPbiAyMi8wMy8yMDE3IDE5OjQ1LCBMdWNhIE1pY2NpbyB3cm90 ZToKPiA+Pj4gSGkgU3RlZmFubywKPiA+PiAKPiA+PiBIZWxsbyBMdWNhLAo+ID4+IAo+ID4+PiBh YXJjaDY0LWxpbnV4LWdudS1nY2MgIC1EQ05URlJRPTB4MDE4MDAwMDAtRFVBUlRfQkFTRT0weDFj MDkwMDAwCj4gPj4+IC1EU1lTUkVHU19CQVNFPTB4MWMwMTAwMDAgLURHSUNfRElTVF9CQVNFPTB4 MmMwMDEwMDAKPiA+Pj4gLURHSUNfQ1BVX0JBU0U9MHgyYzAwMjAwMCAtYyAtbyBib290Lnhlbi5v 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IHdvcms/CgoKPiBUaGUgaW1hZ2Ugd2FzIGRvd25sb2FkZWQgYXQgOiBodHRwczovL2Nsb3VkLWlt YWdlcy51YnVudHUuY29tL3JlbGVhc2VzLzE2LjA0L3JlbGVhc2UvCj4gCj4gQnV0LCBhcyBJIHNh aWQsIHRoZSBlbXVsYXRvciBibG9ja3MgYXQgYm9vdC4gSSB0cmllZCBkaWZmZXJlbnQgcm9vdGZz IGltYWdlcyBhbmQgaSBoYXZlIGNvbmZpZ3VyZWQgdGhlIHJvb3QgZGV2aWNlCj4gcHJvcGVybHkg dG8gL2Rldi92ZGExLgo+IAo+IE1heWJlIG15IGtlcm5lbCBjb25maWd1cmF0aW9uIGlzIHdyb25n Pwo+IAo+IFRoYW5rIHlvdSwKPiBMdWNhCj4gCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0 cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Miccio Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Thu, 23 Mar 2017 01:32:54 +0100 Message-ID: <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 10.0 \(3226\)) Content-Type: text/plain; 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ZmVyZW50IHJvb3RmcyBpbWFnZXMgYW5kIGkgaGF2ZSBjb25maWd1cmVkIHRoZSByb290IGRldmlj ZQo+PiBwcm9wZXJseSB0byAvZGV2L3ZkYTEuCj4+IAo+PiBNYXliZSBteSBrZXJuZWwgY29uZmln dXJhdGlvbiBpcyB3cm9uZz8KPj4gCj4+IFRoYW5rIHlvdSwKPj4gTHVjYQo+PiAKTHVjYQoKCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBt YWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3Jn L3hlbi1kZXZlbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Wed, 22 Mar 2017 17:55:46 -0700 (PDT) Message-ID: References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> Mime-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323329-20573297-1490230546=:8001" Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqr2h-0005wP-Nd for xen-devel@lists.xenproject.org; Thu, 23 Mar 2017 00:55:55 +0000 In-Reply-To: <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Luca Miccio Cc: Stefano Stabellini , andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-20573297-1490230546=:8001 Content-Type: TEXT/PLAIN; charset=US-ASCII On Thu, 23 Mar 2017, Luca Miccio wrote: > > Il giorno 23 mar 2017, alle ore 01:27, Stefano Stabellini ha scritto: > > > > On Thu, 23 Mar 2017, Luca Miccio wrote: > >> Hi Stefano and Julien, > >> > >>> Il giorno 22 mar 2017, alle ore 22:38, Stefano Stabellini ha scritto: > >>> > >>> Hi Luca, > >>> > >>> please don't use HTML emails. > >>> > >>> > >> Sorry for that. > >> > >>> On Wed, 22 Mar 2017, Julien Grall wrote: > >>>> On 22/03/2017 19:45, Luca Miccio wrote: > >>>>> Hi Stefano, > >>>> > >>>> Hello Luca, > >>>> > >>>>> aarch64-linux-gnu-gcc -DCNTFRQ=0x01800000-DUART_BASE=0x1c090000 > >>>>> -DSYSREGS_BASE=0x1c010000 -DGIC_DIST_BASE=0x2c001000 > >>>>> -DGIC_CPU_BASE=0x2c002000 -c -o boot.xen.o boot.S -DXEN > >>>>> aarch64-linux-gnu-gcc -DPHYS_OFFSET=0x80000000 -DMBOX_OFFSET=0xfff8 > >>>>> -DBOOT=boot.xen.o -DXEN_OFFSET=0xA00000 -DKERNEL_OFFSET=0x80000 > >>>>> -DFDT_OFFSET=0x08000000 -DFS_OFFSET=0x10000000 -DXEN=Xen -DKERNEL=Image > >>>>> -DFILESYSTEM=filesystem.cpio.gz -E -P -C -o model.xen.lds model.lds.S > >>>>> aarch64-linux-gnu-gcc -DCNTFRQ=0x01800000-DUART_BASE=0x1c090000 > >>>>> -DSYSREGS_BASE=0x1c010000 -DGIC_DIST_BASE=0x2c001000 > >>>>> -DGIC_CPU_BASE=0x2c002000 -c -o boot.o boot.S > >>>>> aarch64-linux-gnu-gcc -DPHYS_OFFSET=0x80000000 -DMBOX_OFFSET=0xfff8 > >>>>> -DBOOT=boot.o -DKERNEL_OFFSET=0x80000 -DFDT_OFFSET=0x08000000 > >>>>> -DFS_OFFSET=0x10000000 -DKERNEL=Image -DFILESYSTEM=filesystem.cpio.gz -E > >>>>> -P -C -o model.lds model.lds.S > >>>>> aarch64-linux-gnu-ld -o xen-system.axf --script=model.xen.lds > >>>>> aarch64-linux-gnu-ld: section .xen LMA > >>>>> [0000000080a00000,0000000080ac814f] overlaps section .kernel LMA > >>>>> [0000000080080000,0000000080f009ff] > >>>>> Makefile:78: set di istruzioni per l'obiettivo "xen-system.axf" non riuscito > >>>>> make: *** [xen-system.axf] Errore 1\ > >>>>> > >>>>> Clearly there is a problem with the offset of xen section but i can't > >>>>> figure out how to solve it. > >>>> > >>>> I would recommend to use the latest version of bootwrapper which is now > >>>> including support for Xen. I haven't yet updated the wiki with the runes > >>>> but here a quick summary of the step I am using: > >>>> > >>>> * Building bootwrapper > >>>> > >>>> 42sh> git clone git://git.kernel.org/pub/scm/linux/kernel/git/mark/boot-wrapper-aarch64.git > >>>> 42sh> autoreconf -i > >>>> 42sh> ./configure --host=aarch64-linux-gnu --with-kernel-dir= --with-dtb= \ > >>>> --with-cmdline="console=hvc0 earlycon=pl011,0x1c090000 root=/dev/vda rw" --enable-psci \ > >>>> --with-xen-cmdline="dtuart=serial0 console=dtuart no-bootscrub dom0_mem=512M" \ > >>>> --with-xen= --with-cpu-ids=0,1,2,3 > >>>> 42sh> make > >>>> > >>>> Where: > >>>> * is the path to the kernel repository > >>>> * is the path to the device-tree. I am using the one shipped with Linux > >>>> in arch/arm64/boot/dts/arm/foundation-armv8.dtbs > >>>> It will be built if you did make all in Linux > >>>> * is the path to Xen binary (xen/xen in the repo) > >>>> > >>>> * Command line for the foundation model > >>>> 42sh> Foundation_Platform --image= --block-device= --cores=4 > >>>> > >>>> Where: > >>>> * is the path to xen-system.axf produced by bootwrapper > >>>> * is the patch to your rootfs > >>>> > >>>> Let me know if you need more details. > >>> > >>> Thanks Julien, I successfully booted Xen and Linux following these > >>> steps. I quickly updated the wiki. > >>> > >>> Luca, I took me a while to figure out that for root=/dev/vda to work > >>> properly, Linux requires not just all the filesystem and virtio options > >>> enabled in the kernel config, but also CONFIG_VIRTIO_MMIO=y. With that, > >>> you should be able to boot Xen, Linux and mount the root filesystem. If > >>> you download one of the Ubuntu arm64 cloud images, the root device will > >>> be /dev/vda1. > >> > >> First of all, thank you for your help. > >> > >> I think that i keep on doing somenthing wrong because now the bootwrapper produces > >> with no errors the xen-system.axf with the configuration that Julien provided. > >> But when i launch the emulator it simply stops at: > >> (XEN) Bringing up CPU1 > >> > >> To help you understand, this is what i have done: > >> - First i compiled the xen source with the following command: > >> $ make dist-xen XEN_TARGET_ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- CONFIG_EARLY_PRINT=fastmodel > >> ( I am using the staging branch) > >> > >> - Get the linux source with git: > >> $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > >> > >> -Checkout on the v4.4 branch > >> > >> - Follow the steps described in the blog and, as you said, i set in my .config file: > >> CONFIG_VIRTIO=y > >> CONFIG_VIRTIO_MMIO=y > >> CONFIG_VIRTIO_BLK=y > >> I also checked all the filesystem and virtio options. > >> > >> - Compile the linux kernel with the toolchain: > >> $ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- all (to get also the .dtb file) > >> > >> - Configured the bootwrapper with the command that Julian wrote and then launched the > >> foundation model with the simple command: > >> $ Foundation_Platform --image=/path/to/the/xen-system.axf --block-device=xenial-server-cloudimg-arm64.img --cores=4 > > > > Try removing --cores=4, does it work? > > > I have already tried this option with no results The problem is that no matter the --cores=4 option, the device tree (foundation-v8.dtb) has 4 cpu cores by default. It also says that the "enable-method" is "spin-table". At the same time Julien wrote to pass --enable-psci to the bootwrapper, which is a different way to start secondary cpus. I am guessing that is the problem. I suggest to change boot method to psci, to do that you need to modify the dts (device tree source), see the attached patch for Linux. Then you can rebuild the dtb (device tree binary) with: make dtbs Finally rebuild again the bootwrapper and run the model with --cores 4. For me, that works. Great way to get familiar with device tree ;-) > >> The image was downloaded at : https://cloud-images.ubuntu.com/releases/16.04/release/ > >> > >> But, as I said, the emulator blocks at boot. I tried different rootfs images and i have configured the root device > >> properly to /dev/vda1. > >> > >> Maybe my kernel configuration is wrong? --8323329-20573297-1490230546=:8001 Content-Type: TEXT/PLAIN; charset=US-ASCII; name=1 Content-Transfer-Encoding: BASE64 Content-ID: Content-Description: Content-Disposition: attachment; filename=1 ZGlmZiAtLWdpdCBhL2FyY2gvYXJtNjQvYm9vdC9kdHMvYXJtL2ZvdW5kYXRp b24tdjguZHRzaSBiL2FyY2gvYXJtNjQvYm9vdC9kdHMvYXJtL2ZvdW5kYXRp b24tdjguZHRzaQ0KaW5kZXggN2NmYThlNC4uZGFmMmFhYiAxMDA2NDQNCi0t LSBhL2FyY2gvYXJtNjQvYm9vdC9kdHMvYXJtL2ZvdW5kYXRpb24tdjguZHRz aQ0KKysrIGIvYXJjaC9hcm02NC9ib290L2R0cy9hcm0vZm91bmRhdGlvbi12 OC5kdHNpDQpAQCAtMzIsNyArMzIsNyBAQA0KIAkJCWRldmljZV90eXBlID0g ImNwdSI7DQogCQkJY29tcGF0aWJsZSA9ICJhcm0sYXJtdjgiOw0KIAkJCXJl ZyA9IDwweDAgMHgwPjsNCi0JCQllbmFibGUtbWV0aG9kID0gInNwaW4tdGFi bGUiOw0KKwkJCWVuYWJsZS1tZXRob2QgPSAicHNjaSI7DQogCQkJY3B1LXJl bGVhc2UtYWRkciA9IDwweDAgMHg4MDAwZmZmOD47DQogCQkJbmV4dC1sZXZl bC1jYWNoZSA9IDwmTDJfMD47DQogCQl9Ow0KQEAgLTQwLDcgKzQwLDcgQEAN CiAJCQlkZXZpY2VfdHlwZSA9ICJjcHUiOw0KIAkJCWNvbXBhdGlibGUgPSAi YXJtLGFybXY4IjsNCiAJCQlyZWcgPSA8MHgwIDB4MT47DQotCQkJZW5hYmxl LW1ldGhvZCA9ICJzcGluLXRhYmxlIjsNCisJCQllbmFibGUtbWV0aG9kID0g InBzY2kiOw0KIAkJCWNwdS1yZWxlYXNlLWFkZHIgPSA8MHgwIDB4ODAwMGZm Zjg+Ow0KIAkJCW5leHQtbGV2ZWwtY2FjaGUgPSA8JkwyXzA+Ow0KIAkJfTsN CkBAIC00OCw3ICs0OCw3IEBADQogCQkJZGV2aWNlX3R5cGUgPSAiY3B1IjsN CiAJCQljb21wYXRpYmxlID0gImFybSxhcm12OCI7DQogCQkJcmVnID0gPDB4 MCAweDI+Ow0KLQkJCWVuYWJsZS1tZXRob2QgPSAic3Bpbi10YWJsZSI7DQor CQkJZW5hYmxlLW1ldGhvZCA9ICJwc2NpIjsNCiAJCQljcHUtcmVsZWFzZS1h ZGRyID0gPDB4MCAweDgwMDBmZmY4PjsNCiAJCQluZXh0LWxldmVsLWNhY2hl ID0gPCZMMl8wPjsNCiAJCX07DQpAQCAtNTYsNyArNTYsNyBAQA0KIAkJCWRl dmljZV90eXBlID0gImNwdSI7DQogCQkJY29tcGF0aWJsZSA9ICJhcm0sYXJt djgiOw0KIAkJCXJlZyA9IDwweDAgMHgzPjsNCi0JCQllbmFibGUtbWV0aG9k ID0gInNwaW4tdGFibGUiOw0KKwkJCWVuYWJsZS1tZXRob2QgPSAicHNjaSI7 DQogCQkJY3B1LXJlbGVhc2UtYWRkciA9IDwweDAgMHg4MDAwZmZmOD47DQog CQkJbmV4dC1sZXZlbC1jYWNoZSA9IDwmTDJfMD47DQogCQl9Ow0K --8323329-20573297-1490230546=:8001 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --8323329-20573297-1490230546=:8001-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Miccio Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Thu, 23 Mar 2017 03:23:37 +0100 Message-ID: <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 10.0 \(3226\)) Content-Type: multipart/mixed; boundary="===============8411654084599192600==" Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqsPe-0005N1-1d for xen-devel@lists.xenproject.org; Thu, 23 Mar 2017 02:23:42 +0000 Received: by mail-wm0-f67.google.com with SMTP id n11so13827836wma.0 for ; Wed, 22 Mar 2017 19:23:39 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini Cc: andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org --===============8411654084599192600== Content-Type: multipart/alternative; boundary="Apple-Mail=_6E752355-11FE-40DF-B1F1-4B3360D07C6A" --Apple-Mail=_6E752355-11FE-40DF-B1F1-4B3360D07C6A Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > Il giorno 23 mar 2017, alle ore 01:55, Stefano Stabellini = ha scritto: >=20 > On Thu, 23 Mar 2017, Luca Miccio wrote: >>> Il giorno 23 mar 2017, alle ore 01:27, Stefano Stabellini = ha scritto: >>>=20 >>> On Thu, 23 Mar 2017, Luca Miccio wrote: >>>> Hi Stefano and Julien, >>>>=20 >>>>> Il giorno 22 mar 2017, alle ore 22:38, Stefano Stabellini = ha scritto: >>>>>=20 >>>>> Hi Luca, >>>>>=20 >>>>> please don't use HTML emails. >>>>>=20 >>>>>=20 >>>> Sorry for that. >>>>=20 >>>>> On Wed, 22 Mar 2017, Julien Grall wrote: >>>>>> On 22/03/2017 19:45, Luca Miccio wrote: >>>>>>> Hi Stefano, >>>>>>=20 >>>>>> Hello Luca, >>>>>>=20 >>>>>>> aarch64-linux-gnu-gcc -DCNTFRQ=3D0x01800000-DUART_BASE=3D0x1c0900= 00 >>>>>>> -DSYSREGS_BASE=3D0x1c010000 -DGIC_DIST_BASE=3D0x2c001000 >>>>>>> -DGIC_CPU_BASE=3D0x2c002000 -c -o boot.xen.o boot.S -DXEN >>>>>>> aarch64-linux-gnu-gcc -DPHYS_OFFSET=3D0x80000000 = -DMBOX_OFFSET=3D0xfff8 >>>>>>> -DBOOT=3Dboot.xen.o -DXEN_OFFSET=3D0xA00000 = -DKERNEL_OFFSET=3D0x80000 >>>>>>> -DFDT_OFFSET=3D0x08000000 -DFS_OFFSET=3D0x10000000 -DXEN=3DXen = -DKERNEL=3DImage >>>>>>> -DFILESYSTEM=3Dfilesystem.cpio.gz -E -P -C -o model.xen.lds = model.lds.S >>>>>>> aarch64-linux-gnu-gcc -DCNTFRQ=3D0x01800000-DUART_BASE=3D0x1c0900= 00 >>>>>>> -DSYSREGS_BASE=3D0x1c010000 -DGIC_DIST_BASE=3D0x2c001000 >>>>>>> -DGIC_CPU_BASE=3D0x2c002000 -c -o boot.o boot.S >>>>>>> aarch64-linux-gnu-gcc -DPHYS_OFFSET=3D0x80000000 = -DMBOX_OFFSET=3D0xfff8 >>>>>>> -DBOOT=3Dboot.o -DKERNEL_OFFSET=3D0x80000 = -DFDT_OFFSET=3D0x08000000 >>>>>>> -DFS_OFFSET=3D0x10000000 -DKERNEL=3DImage = -DFILESYSTEM=3Dfilesystem.cpio.gz -E >>>>>>> -P -C -o model.lds model.lds.S >>>>>>> aarch64-linux-gnu-ld -o xen-system.axf --script=3Dmodel.xen.lds >>>>>>> aarch64-linux-gnu-ld: section .xen LMA >>>>>>> [0000000080a00000,0000000080ac814f] overlaps section .kernel LMA >>>>>>> [0000000080080000,0000000080f009ff] >>>>>>> Makefile:78: set di istruzioni per l'obiettivo "xen-system.axf" = non riuscito >>>>>>> make: *** [xen-system.axf] Errore 1\ >>>>>>>=20 >>>>>>> Clearly there is a problem with the offset of xen section but i = can't >>>>>>> figure out how to solve it. >>>>>>=20 >>>>>> I would recommend to use the latest version of bootwrapper which = is now >>>>>> including support for Xen. I haven't yet updated the wiki with = the runes >>>>>> but here a quick summary of the step I am using: >>>>>>=20 >>>>>> * Building bootwrapper >>>>>>=20 >>>>>> 42sh> git clone = git://git.kernel.org/pub/scm/linux/kernel/git/mark/boot-wrapper-aarch64.gi= t >>>>>> 42sh> autoreconf -i >>>>>> 42sh> ./configure --host=3Daarch64-linux-gnu = --with-kernel-dir=3D --with-dtb=3D \ >>>>>> --with-cmdline=3D"console=3Dhvc0 earlycon=3Dpl011,0x1c090000 = root=3D/dev/vda rw" --enable-psci \ >>>>>> --with-xen-cmdline=3D"dtuart=3Dserial0 console=3Ddtuart = no-bootscrub dom0_mem=3D512M" \ >>>>>> --with-xen=3D --with-cpu-ids=3D0,1,2,3 >>>>>> 42sh> make >>>>>>=20 >>>>>> Where: >>>>>> * is the path to the kernel repository >>>>>> * is the path to the device-tree. I am using the one = shipped with Linux >>>>>> in arch/arm64/boot/dts/arm/foundation-armv8.dtbs >>>>>> It will be built if you did make all in Linux >>>>>> * is the path to Xen binary (xen/xen in the repo) >>>>>>=20 >>>>>> * Command line for the foundation model >>>>>> 42sh> Foundation_Platform --image=3D = --block-device=3D --cores=3D4 >>>>>>=20 >>>>>> Where: >>>>>> * is the path to xen-system.axf produced by bootwrapper >>>>>> * is the patch to your rootfs >>>>>>=20 >>>>>> Let me know if you need more details. >>>>>=20 >>>>> Thanks Julien, I successfully booted Xen and Linux following these >>>>> steps. I quickly updated the wiki. >>>>>=20 >>>>> Luca, I took me a while to figure out that for root=3D/dev/vda to = work >>>>> properly, Linux requires not just all the filesystem and virtio = options >>>>> enabled in the kernel config, but also CONFIG_VIRTIO_MMIO=3Dy. = With that, >>>>> you should be able to boot Xen, Linux and mount the root = filesystem. If >>>>> you download one of the Ubuntu arm64 cloud images, the root device = will >>>>> be /dev/vda1. >>>>=20 >>>> First of all, thank you for your help. >>>>=20 >>>> I think that i keep on doing somenthing wrong because now the = bootwrapper produces >>>> with no errors the xen-system.axf with the configuration that = Julien provided.=20 >>>> But when i launch the emulator it simply stops at: >>>> (XEN) Bringing up CPU1 >>>>=20 >>>> To help you understand, this is what i have done: >>>> - First i compiled the xen source with the following command: >>>> $ make dist-xen XEN_TARGET_ARCH=3Darm64 = CROSS_COMPILE=3Daarch64-linux-gnu- CONFIG_EARLY_PRINT=3Dfastmodel >>>> ( I am using the staging branch) >>>>=20 >>>> - Get the linux source with git:=20 >>>> $ git clone = git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >>>>=20 >>>> -Checkout on the v4.4 branch=20 >>>>=20 >>>> - Follow the steps described in the blog and, as you said, i set in = my .config file: >>>> CONFIG_VIRTIO=3Dy >>>> CONFIG_VIRTIO_MMIO=3Dy >>>> CONFIG_VIRTIO_BLK=3Dy >>>> I also checked all the filesystem and virtio options.=20 >>>>=20 >>>> - Compile the linux kernel with the toolchain: >>>> $ make ARCH=3Darm64 CROSS_COMPILE=3Daarch64-linux-gnu- all (to get = also the .dtb file) >>>>=20 >>>> - Configured the bootwrapper with the command that Julian wrote and = then launched the=20 >>>> foundation model with the simple command: >>>> $ Foundation_Platform --image=3D/path/to/the/xen-system.axf = --block-device=3Dxenial-server-cloudimg-arm64.img --cores=3D4 >>>=20 >>> Try removing --cores=3D4, does it work? >>>=20 >> I have already tried this option with no results >=20 > The problem is that no matter the --cores=3D4 option, the device tree > (foundation-v8.dtb) has 4 cpu cores by default. It also says that the > "enable-method" is "spin-table". At the same time Julien wrote to pass > --enable-psci to the bootwrapper, which is a different way to start > secondary cpus. I am guessing that is the problem. I suggest to change > boot method to psci, to do that you need to modify the dts (device = tree > source), see the attached patch for Linux. Then you can rebuild the = dtb > (device tree binary) with: >=20 > make dtbs >=20 > Finally rebuild again the bootwrapper and run the model with --cores = 4. >=20 > For me, that works. Great way to get familiar with device tree ;-) I tried also this method but i had the same error. So i came up with the = idea of removing the psci method from the configure and also from the dtsi file that i have = changed.=20 With this configuration the model booted up correctly, even if the = process took about 10 minutes. Just for my personal knowledge: it is normal that the boot is very slow? = Is the rootfs that i=E2=80=99m using? Thank you for your response, Luca >=20 >>>> The image was downloaded at : = https://cloud-images.ubuntu.com/releases/16.04/release/ = >>>>=20 >>>> But, as I said, the emulator blocks at boot. I tried different = rootfs images and i have configured the root device >>>> properly to /dev/vda1. >>>>=20 >>>> Maybe my kernel configuration is wrong? > <1.txt> --Apple-Mail=_6E752355-11FE-40DF-B1F1-4B3360D07C6A Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Il giorno 23 mar 2017, alle ore 01:55, Stefano Stabellini = <sstabellini@kernel.org> ha scritto:

On Thu, 23 Mar 2017, Luca Miccio = wrote:
Il giorno 23 mar 2017, alle ore 01:27, Stefano Stabellini = <sstabellini@kernel.org> ha scritto:

On Thu, 23 Mar 2017, Luca Miccio wrote:
Hi Stefano and = Julien,

Il giorno 22 mar 2017, alle ore 22:38, Stefano Stabellini = <sstabellini@kernel.org> ha scritto:

Hi Luca,

please don't use HTML = emails.


Sorry = for that.

On Wed, 22 Mar 2017, Julien Grall wrote:
On 22/03/2017 19:45, = Luca Miccio wrote:
Hi = Stefano,

Hello Luca,

aarch64-linux-gnu-gcc =  -DCNTFRQ=3D0x01800000-DUART_BASE=3D0x1c090000
-DSYSREGS_BASE=3D0x1c010000 -DGIC_DIST_BASE=3D0x2c001000
-DGIC_CPU_BASE=3D0x2c002000 -c -o boot.xen.o boot.S -DXEN
aarch64-linux-gnu-gcc  -DPHYS_OFFSET=3D0x80000000 = -DMBOX_OFFSET=3D0xfff8
-DBOOT=3Dboot.xen.o = -DXEN_OFFSET=3D0xA00000 -DKERNEL_OFFSET=3D0x80000
-DFDT_OFFSET=3D0x08000000 -DFS_OFFSET=3D0x10000000 -DXEN=3DXen = -DKERNEL=3DImage
-DFILESYSTEM=3Dfilesystem.cpio.gz -E -P = -C -o model.xen.lds model.lds.S
aarch64-linux-gnu-gcc =  -DCNTFRQ=3D0x01800000-DUART_BASE=3D0x1c090000
-DSYSREGS_BASE=3D0x1c010000 -DGIC_DIST_BASE=3D0x2c001000
-DGIC_CPU_BASE=3D0x2c002000 -c -o boot.o boot.S
aarch64-linux-gnu-gcc  -DPHYS_OFFSET=3D0x80000000 = -DMBOX_OFFSET=3D0xfff8
-DBOOT=3Dboot.o = -DKERNEL_OFFSET=3D0x80000 -DFDT_OFFSET=3D0x08000000
-DFS_OFFSET=3D0x10000000 -DKERNEL=3DImage = -DFILESYSTEM=3Dfilesystem.cpio.gz -E
-P -C -o model.lds = model.lds.S
aarch64-linux-gnu-ld -o xen-system.axf = --script=3Dmodel.xen.lds
aarch64-linux-gnu-ld: section = .xen LMA
[0000000080a00000,0000000080ac814f] overlaps = section .kernel LMA
[0000000080080000,0000000080f009ff]
Makefile:78: set di istruzioni per l'obiettivo = "xen-system.axf" non riuscito
make: *** [xen-system.axf] = Errore 1\

Clearly there is a problem with = the offset of xen section but i can't
figure out how to = solve it.

I would recommend to = use the latest version of bootwrapper which is now
including= support for Xen. I haven't yet updated the wiki with the runes
but here a quick summary of the step I am using:

* Building bootwrapper

42sh> git clone git://git.kernel.org/pub/scm/linux/kernel/git/mark/boot-wrapper= -aarch64.git
42sh> autoreconf -i
42sh> ./configure --host=3Daarch64-linux-gnu = --with-kernel-dir=3D<kernel-dir> --with-dtb=3D<dtb> \
--with-cmdline=3D"console=3Dhvc0 earlycon=3Dpl011,0x1c090000 = root=3D/dev/vda rw" --enable-psci \
--with-xen-cmdline=3D"dtuart=3Dserial0 console=3Ddtuart = no-bootscrub dom0_mem=3D512M" \
--with-xen=3D<xen-bin>= --with-cpu-ids=3D0,1,2,3
42sh> make

Where:
* <kernel-dir> is the path to the = kernel repository
* <dtb> is the path to the = device-tree. I am using the one shipped with Linux
 in = arch/arm64/boot/dts/arm/foundation-armv8.dtbs
 It = will be built if you did make all in Linux
* = <xen-bin> is the path to Xen binary (xen/xen in the repo)

* Command line for the foundation model
42sh> Foundation_Platform --image=3D<image> = --block-device=3D<rootfs> --cores=3D4

Where:
* <image> is the path to = xen-system.axf produced by bootwrapper
* <rootfs> is = the patch to your rootfs

Let me know if you = need more details.

Thanks = Julien, I successfully booted Xen and Linux following these
steps. I quickly updated the wiki.

Luca, I took me a while to figure out that for root=3D/dev/vda = to work
properly, Linux requires not just all the = filesystem and virtio options
enabled in the kernel = config, but also CONFIG_VIRTIO_MMIO=3Dy. With that,
you = should be able to boot Xen, Linux and mount the root filesystem. If
you download one of the Ubuntu arm64 cloud images, the root = device will
be /dev/vda1.

First of all, thank you for your help.

I think that i keep on doing somenthing wrong because now the = bootwrapper produces
with no errors the xen-system.axf =  with the configuration that Julien provided. 
But when i = launch the emulator it simply stops at:
(XEN) Bringing up = CPU1

To help you understand, this is what i = have done:
- First i compiled the xen source with the = following command:
$ make dist-xen XEN_TARGET_ARCH=3Darm64 = CROSS_COMPILE=3Daarch64-linux-gnu- CONFIG_EARLY_PRINT=3Dfastmodel
( I am using the staging branch)

-= Get the linux source with git: 
$ git clone = git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.gi= t

-Checkout on the v4.4 branch 

- Follow the steps described in the blog and, as you said, i = set in my .config file:
CONFIG_VIRTIO=3Dy
CONFIG_VIRTIO_MMIO=3Dy
CONFIG_VIRTIO_BLK=3Dy
I also checked all the filesystem and virtio options. 

- Compile the linux kernel with the toolchain:
$ = make ARCH=3Darm64 CROSS_COMPILE=3Daarch64-linux-gnu- all (to get also = the .dtb file)

- Configured the bootwrapper = with the command that Julian wrote and then launched the 
foundation = model with the simple command:
$ Foundation_Platform = --image=3D/path/to/the/xen-system.axf = --block-device=3Dxenial-server-cloudimg-arm64.img --cores=3D4

Try removing --cores=3D4, does it = work?

I have already tried = this option with no results

The problem is that = no matter the --cores=3D4 option, the device tree
(foundation-v8.dtb) = has 4 cpu cores by default. It also says that the
"enable-method" is = "spin-table". At the same time Julien wrote to pass
--enable-psci to = the bootwrapper, which is a different way to start
secondary cpus. I = am guessing that is the problem. I suggest to change
boot method to = psci, to do that you need to modify the dts (device tree
source), see the = attached patch for Linux. Then you can rebuild the dtb
(device tree = binary) with:

make dtbs

Finally rebuild again the bootwrapper and = run the model with --cores 4.

For me, that works. Great way to get familiar = with device tree ;-)

I tried also = this method but i had the same error. So i came up with the idea of = removing the
psci method from the configure and also from the = dtsi file that i have changed. 

With this configuration the model booted up = correctly, even if the process took about 10 minutes.
Just for = my personal knowledge: it is normal that the boot is very slow? Is the = rootfs that i=E2=80=99m using?


Thank you for your = response,
Luca



The image was downloaded = at : https://cloud-images.ubuntu.com/releases/16.04/release/

But, as I said, the emulator blocks at boot. I = tried different rootfs images and i have configured the root device
properly to /dev/vda1.

Maybe my = kernel configuration is = wrong?
&l= t;1.txt>


= --Apple-Mail=_6E752355-11FE-40DF-B1F1-4B3360D07C6A-- --===============8411654084599192600== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --===============8411654084599192600==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Thu, 23 Mar 2017 14:42:57 +0000 Message-ID: <636e7e8e-56eb-b46d-14c8-53214855ad1e@arm.com> References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cr3x9-0002Ux-0M for xen-devel@lists.xenproject.org; Thu, 23 Mar 2017 14:43:03 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini , Luca Miccio Cc: Stefano Stabellini , xen-devel@lists.xenproject.org, Dario.faggioli@citrix.com, nd@arm.com, andre.przywara@arm.com List-Id: xen-devel@lists.xenproject.org SGkgU3RlZmFubywKCk9uIDIzLzAzLzE3IDAwOjU1LCBTdGVmYW5vIFN0YWJlbGxpbmkgd3JvdGU6 Cj4gVGhlIHByb2JsZW0gaXMgdGhhdCBubyBtYXR0ZXIgdGhlIC0tY29yZXM9NCBvcHRpb24sIHRo ZSBkZXZpY2UgdHJlZQo+IChmb3VuZGF0aW9uLXY4LmR0YikgaGFzIDQgY3B1IGNvcmVzIGJ5IGRl ZmF1bHQuIEl0IGFsc28gc2F5cyB0aGF0IHRoZQo+ICJlbmFibGUtbWV0aG9kIiBpcyAic3Bpbi10 YWJsZSIuIEF0IHRoZSBzYW1lIHRpbWUgSnVsaWVuIHdyb3RlIHRvIHBhc3MKPiAtLWVuYWJsZS1w c2NpIHRvIHRoZSBib290d3JhcHBlciwgd2hpY2ggaXMgYSBkaWZmZXJlbnQgd2F5IHRvIHN0YXJ0 Cj4gc2Vjb25kYXJ5IGNwdXMuIEkgYW0gZ3Vlc3NpbmcgdGhhdCBpcyB0aGUgcHJvYmxlbS4gSSBz dWdnZXN0IHRvIGNoYW5nZQo+IGJvb3QgbWV0aG9kIHRvIHBzY2ksIHRvIGRvIHRoYXQgeW91IG5l ZWQgdG8gbW9kaWZ5IHRoZSBkdHMgKGRldmljZSB0cmVlCj4gc291cmNlKSwgc2VlIHRoZSBhdHRh Y2hlZCBwYXRjaCBmb3IgTGludXguIFRoZW4geW91IGNhbiByZWJ1aWxkIHRoZSBkdGIKPiAoZGV2 aWNlIHRyZWUgYmluYXJ5KSB3aXRoOgoKSSBhbSB1c2luZyAtLWVuYWJsZS1wc2NpIGFuZCBpdCB3 b3JrcyBmb3IgbWUgYmVjYXVzZSBib290d3JhcHBlciBpcyAKcmUtd3JpdGluZyB0aGUgQ1BVcyBu b2RlLgoKQ2hlZXJzLAoKLS0gCkp1bGllbiBHcmFsbAoKX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxA bGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg== From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Thu, 23 Mar 2017 14:49:22 +0000 Message-ID: <8dfa724f-091d-9f06-51c9-64d233bdea04@arm.com> References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cr43N-0002n5-Ez for xen-devel@lists.xenproject.org; Thu, 23 Mar 2017 14:49:29 +0000 In-Reply-To: <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Luca Miccio , Stefano Stabellini Cc: Stefano Stabellini , xen-devel@lists.xenproject.org, Dario.faggioli@citrix.com, nd@arm.com, andre.przywara@arm.com List-Id: xen-devel@lists.xenproject.org SGVsbG8gTHVjYSwKCk9uIDIzLzAzLzE3IDAyOjIzLCBMdWNhIE1pY2NpbyB3cm90ZToKPiBJIHRy aWVkIGFsc28gdGhpcyBtZXRob2QgYnV0IGkgaGFkIHRoZSBzYW1lIGVycm9yLiBTbyBpIGNhbWUg dXAgd2l0aCB0aGUKPiBpZGVhIG9mIHJlbW92aW5nIHRoZQo+IHBzY2kgbWV0aG9kIGZyb20gdGhl IGNvbmZpZ3VyZSBhbmQgYWxzbyBmcm9tIHRoZSBkdHNpIGZpbGUgdGhhdCBpIGhhdmUKPiBjaGFu Z2VkLgoKSSBndWVzcyB5b3UgYXJlIHVzaW5nIG9ubHkgMSBjb3JlIGluIHRoaXMgY2FzZS4gQW0g SSByaWdodD8KCj4KPiBXaXRoIHRoaXMgY29uZmlndXJhdGlvbiB0aGUgbW9kZWwgYm9vdGVkIHVw IGNvcnJlY3RseSwgZXZlbiBpZiB0aGUKPiBwcm9jZXNzIHRvb2sgYWJvdXQgMTAgbWludXRlcy4K PiBKdXN0IGZvciBteSBwZXJzb25hbCBrbm93bGVkZ2U6IGl0IGlzIG5vcm1hbCB0aGF0IHRoZSBi b290IGlzIHZlcnkgc2xvdz8KPiBJcyB0aGUgcm9vdGZzIHRoYXQgaeKAmW0gdXNpbmc/CgpCb290 aW5nIGEgZnVsbCBkaXN0cm8gb24gdGhlIG1vZGVsIGNhbiBiZSBzbG93LiBVc3VhbGx5IEkgd3Jp dGUgbXkgb3duIAppbml0c2NyaXB0IHRvIHN0YXJ0IHRoZSBuZWNlc3NhcnkgZGFlbW9uIGFuZCBz a2lwIHN5c3RlbWQuCgo0MnNoPiBjYXQgL3Jvb3QvaW5pdC5zaAoKc2V0IC14Cm1vdW50IC10IHBy b2MgcHJvYyAgL3Byb2MKbW91bnQgLXQgZGV2dG1wZnMgZGV2IC9kZXYKCmV4cG9ydCBIT01FPS9y b290CgpybSAtcmYgL3Zhci9ydW4veGVuc3RvcmUKcm0gLXJmIC92YXIvcnVuL3hlbgoKL2V0Yy9p bml0LmQveGVuY29tbW9ucyBzdGFydAoKZXhlYyAvYmluL2Jhc2gKCi0tLS0tLS0tLS0tLS0tLS0t LS0KCkFuZCBJIHBhc3MgaW5pdD0vcm9vdC9pbml0LnNoIG9uIHRoZSBMaW51eCBrZXJuZWwgY29t bWFuZCBsaW5lLgoKQ2hlZXJzLAoKLS0gCkp1bGllbiBHcmFsbAoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4t ZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg== From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Miccio Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Thu, 23 Mar 2017 19:03:17 +0100 Message-ID: <0095A93B-AC2C-4922-AD99-AA3F4277BAAD@gmail.com> References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> <8dfa724f-091d-9f06-51c9-64d233bdea04@arm.com> Mime-Version: 1.0 (Mac OS X Mail 10.0 \(3226\)) Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cr74z-0005KM-3O for xen-devel@lists.xenproject.org; Thu, 23 Mar 2017 18:03:21 +0000 Received: by mail-wm0-f68.google.com with SMTP id n11so735210wma.0 for ; Thu, 23 Mar 2017 11:03:19 -0700 (PDT) In-Reply-To: <8dfa724f-091d-9f06-51c9-64d233bdea04@arm.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Julien Grall Cc: Stefano Stabellini , andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org SGVsbG8gSnVsaWVuCj4gSWwgZ2lvcm5vIDIzIG1hciAyMDE3LCBhbGxlIG9yZSAxNTo0OSwgSnVs aWVuIEdyYWxsIDxqdWxpZW4uZ3JhbGxAYXJtLmNvbT4gaGEgc2NyaXR0bzoKPiAKPiBIZWxsbyBM dWNhLAo+IAo+IE9uIDIzLzAzLzE3IDAyOjIzLCBMdWNhIE1pY2NpbyB3cm90ZToKPj4gSSB0cmll ZCBhbHNvIHRoaXMgbWV0aG9kIGJ1dCBpIGhhZCB0aGUgc2FtZSBlcnJvci4gU28gaSBjYW1lIHVw IHdpdGggdGhlCj4+IGlkZWEgb2YgcmVtb3ZpbmcgdGhlCj4+IHBzY2kgbWV0aG9kIGZyb20gdGhl IGNvbmZpZ3VyZSBhbmQgYWxzbyBmcm9tIHRoZSBkdHNpIGZpbGUgdGhhdCBpIGhhdmUKPj4gY2hh bmdlZC4KPiAKPiBJIGd1ZXNzIHlvdSBhcmUgdXNpbmcgb25seSAxIGNvcmUgaW4gdGhpcyBjYXNl LiBBbSBJIHJpZ2h0Pwo+IApObywgaSBhbSB1c2luZyA0IGNvcmVzLCB3aXRoIOKAlGNvcmVzIG9w dGlvbiBhbmQgaSB0aGluayB0aGF0IGkgYW0gdXNpbmcgYWN0dWFsbHkgNCBjb3JlcwpiZWNhdXNl IG9uIHRoZSBtb2RlbCDigJxjb250cm9sIHBhbmVs4oCdIGkgaGF2ZSA0IGdyZWVuIHRyaWFuZ2xl cyB3aGljaCBvbmVzIG9mIHRoZW0gc2hvdWxkCnJlcHJlc2VudCB0aGUgbnVtYmVyIG9mIGNvcmVz IGFuZCB0aGVpciBzdGF0dXMuIApJdCBpcyBvbmx5IG15IG9waW5pb24gc28sIHBsZWFzZSwgdGVs bCBtZSBpZiBpIGFtIHdyb25nLgo+PiAKPj4gV2l0aCB0aGlzIGNvbmZpZ3VyYXRpb24gdGhlIG1v ZGVsIGJvb3RlZCB1cCBjb3JyZWN0bHksIGV2ZW4gaWYgdGhlCj4+IHByb2Nlc3MgdG9vayBhYm91 dCAxMCBtaW51dGVzLgo+PiBKdXN0IGZvciBteSBwZXJzb25hbCBrbm93bGVkZ2U6IGl0IGlzIG5v cm1hbCB0aGF0IHRoZSBib290IGlzIHZlcnkgc2xvdz8KPj4gSXMgdGhlIHJvb3RmcyB0aGF0IGni gJltIHVzaW5nPwo+IAo+IEJvb3RpbmcgYSBmdWxsIGRpc3RybyBvbiB0aGUgbW9kZWwgY2FuIGJl IHNsb3cuIFVzdWFsbHkgSSB3cml0ZSBteSBvd24gaW5pdHNjcmlwdCB0byBzdGFydCB0aGUgbmVj ZXNzYXJ5IGRhZW1vbiBhbmQgc2tpcCBzeXN0ZW1kLgo+IAo+IDQyc2g+IGNhdCAvcm9vdC9pbml0 LnNoCj4gCj4gc2V0IC14Cj4gbW91bnQgLXQgcHJvYyBwcm9jICAvcHJvYwo+IG1vdW50IC10IGRl dnRtcGZzIGRldiAvZGV2Cj4gCj4gZXhwb3J0IEhPTUU9L3Jvb3QKPiAKPiBybSAtcmYgL3Zhci9y dW4veGVuc3RvcmUKPiBybSAtcmYgL3Zhci9ydW4veGVuCj4gCj4gL2V0Yy9pbml0LmQveGVuY29t bW9ucyBzdGFydAo+IAo+IGV4ZWMgL2Jpbi9iYXNoCj4gCj4gLS0tLS0tLS0tLS0tLS0tLS0tLQo+ IAo+IEFuZCBJIHBhc3MgaW5pdD0vcm9vdC9pbml0LnNoIG9uIHRoZSBMaW51eCBrZXJuZWwgY29t bWFuZCBsaW5lLgo+IApUaGF0IGhlbHBlZCBhIGxvdCwgdGhhbmsgeW91Lgo+IENoZWVycywKPiAK PiAtLSAKPiBKdWxpZW4gR3JhbGwKCkx1Y2EuCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlz dHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg== From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Thu, 23 Mar 2017 11:07:35 -0700 (PDT) Message-ID: References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> Mime-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323329-1137988001-1490292323=:8001" Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cr79C-0005ph-Ft for xen-devel@lists.xenproject.org; Thu, 23 Mar 2017 18:07:42 +0000 In-Reply-To: <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> Content-ID: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Luca Miccio Cc: Stefano Stabellini , andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-1137988001-1490292323=:8001 Content-Type: TEXT/PLAIN; CHARSET=UTF-8 Content-Transfer-Encoding: 8BIT Content-ID: You are still using HTML emails On Thu, 23 Mar 2017, Luca Miccio wrote: > > Il giorno 23 mar 2017, alle ore 01:55, Stefano Stabellini ha scritto: > > On Thu, 23 Mar 2017, Luca Miccio wrote: > Il giorno 23 mar 2017, alle ore 01:27, Stefano Stabellini ha scritto: > > On Thu, 23 Mar 2017, Luca Miccio wrote: > Hi Stefano and Julien, > > Il giorno 22 mar 2017, alle ore 22:38, Stefano Stabellini ha scritto: > > Hi Luca, > > please don't use HTML emails. > > > Sorry for that. > > On Wed, 22 Mar 2017, Julien Grall wrote: > On 22/03/2017 19:45, Luca Miccio wrote: > Hi Stefano, > > > Hello Luca, > > aarch64-linux-gnu-gcc  -DCNTFRQ=0x01800000-DUART_BASE=0x1c090000 > -DSYSREGS_BASE=0x1c010000 -DGIC_DIST_BASE=0x2c001000 > -DGIC_CPU_BASE=0x2c002000 -c -o boot.xen.o boot.S -DXEN > aarch64-linux-gnu-gcc  -DPHYS_OFFSET=0x80000000 -DMBOX_OFFSET=0xfff8 > -DBOOT=boot.xen.o -DXEN_OFFSET=0xA00000 -DKERNEL_OFFSET=0x80000 > -DFDT_OFFSET=0x08000000 -DFS_OFFSET=0x10000000 -DXEN=Xen -DKERNEL=Image > -DFILESYSTEM=filesystem.cpio.gz -E -P -C -o model.xen.lds model.lds.S > aarch64-linux-gnu-gcc  -DCNTFRQ=0x01800000-DUART_BASE=0x1c090000 > -DSYSREGS_BASE=0x1c010000 -DGIC_DIST_BASE=0x2c001000 > -DGIC_CPU_BASE=0x2c002000 -c -o boot.o boot.S > aarch64-linux-gnu-gcc  -DPHYS_OFFSET=0x80000000 -DMBOX_OFFSET=0xfff8 > -DBOOT=boot.o -DKERNEL_OFFSET=0x80000 -DFDT_OFFSET=0x08000000 > -DFS_OFFSET=0x10000000 -DKERNEL=Image -DFILESYSTEM=filesystem.cpio.gz -E > -P -C -o model.lds model.lds.S > aarch64-linux-gnu-ld -o xen-system.axf --script=model.xen.lds > aarch64-linux-gnu-ld: section .xen LMA > [0000000080a00000,0000000080ac814f] overlaps section .kernel LMA > [0000000080080000,0000000080f009ff] > Makefile:78: set di istruzioni per l'obiettivo "xen-system.axf" non riuscito > make: *** [xen-system.axf] Errore 1\ > > Clearly there is a problem with the offset of xen section but i can't > figure out how to solve it. > > > I would recommend to use the latest version of bootwrapper which is now > including support for Xen. I haven't yet updated the wiki with the runes > but here a quick summary of the step I am using: > > * Building bootwrapper > > 42sh> git clone git://git.kernel.org/pub/scm/linux/kernel/git/mark/boot-wrapper-aarch64.git > 42sh> autoreconf -i > 42sh> ./configure --host=aarch64-linux-gnu --with-kernel-dir= --with-dtb= \ > --with-cmdline="console=hvc0 earlycon=pl011,0x1c090000 root=/dev/vda rw" --enable-psci \ > --with-xen-cmdline="dtuart=serial0 console=dtuart no-bootscrub dom0_mem=512M" \ > --with-xen= --with-cpu-ids=0,1,2,3 > 42sh> make > > Where: > * is the path to the kernel repository > * is the path to the device-tree. I am using the one shipped with Linux >  in arch/arm64/boot/dts/arm/foundation-armv8.dtbs >  It will be built if you did make all in Linux > * is the path to Xen binary (xen/xen in the repo) > > * Command line for the foundation model > 42sh> Foundation_Platform --image= --block-device= --cores=4 > > Where: > * is the path to xen-system.axf produced by bootwrapper > * is the patch to your rootfs > > Let me know if you need more details. > > > Thanks Julien, I successfully booted Xen and Linux following these > steps. I quickly updated the wiki. > > Luca, I took me a while to figure out that for root=/dev/vda to work > properly, Linux requires not just all the filesystem and virtio options > enabled in the kernel config, but also CONFIG_VIRTIO_MMIO=y. With that, > you should be able to boot Xen, Linux and mount the root filesystem. If > you download one of the Ubuntu arm64 cloud images, the root device will > be /dev/vda1. > > > First of all, thank you for your help. > > I think that i keep on doing somenthing wrong because now the bootwrapper produces > with no errors the xen-system.axf  with the configuration that Julien provided.  > But when i launch the emulator it simply stops at: > (XEN) Bringing up CPU1 > > To help you understand, this is what i have done: > - First i compiled the xen source with the following command: > $ make dist-xen XEN_TARGET_ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- CONFIG_EARLY_PRINT=fastmodel > ( I am using the staging branch) > > - Get the linux source with git:  > $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > -Checkout on the v4.4 branch  > > - Follow the steps described in the blog and, as you said, i set in my .config file: > CONFIG_VIRTIO=y > CONFIG_VIRTIO_MMIO=y > CONFIG_VIRTIO_BLK=y > I also checked all the filesystem and virtio options.  > > - Compile the linux kernel with the toolchain: > $ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- all (to get also the .dtb file) > > - Configured the bootwrapper with the command that Julian wrote and then launched the  > foundation model with the simple command: > $ Foundation_Platform --image=/path/to/the/xen-system.axf --block-device=xenial-server-cloudimg-arm64.img --cores=4 > > > Try removing --cores=4, does it work? > > I have already tried this option with no results > > > The problem is that no matter the --cores=4 option, the device tree > (foundation-v8.dtb) has 4 cpu cores by default. It also says that the > "enable-method" is "spin-table". At the same time Julien wrote to pass > --enable-psci to the bootwrapper, which is a different way to start > secondary cpus. I am guessing that is the problem. I suggest to change > boot method to psci, to do that you need to modify the dts (device tree > source), see the attached patch for Linux. Then you can rebuild the dtb > (device tree binary) with: > > make dtbs > > Finally rebuild again the bootwrapper and run the model with --cores 4. > > For me, that works. Great way to get familiar with device tree ;-) > > > I tried also this method but i had the same error. So i came up with the idea of removing the > psci method from the configure and also from the dtsi file that i have changed.  > > With this configuration the model booted up correctly, even if the process took about 10 minutes. > Just for my personal knowledge: it is normal that the boot is very slow? Is the rootfs that i’m using? > > > Thank you for your response, > Luca > > > > The image was downloaded at : https://cloud-images.ubuntu.com/releases/16.04/release/ > > But, as I said, the emulator blocks at boot. I tried different rootfs images and i have configured the root device > properly to /dev/vda1. > > Maybe my kernel configuration is wrong? > > <1.txt> > > > > > --8323329-1137988001-1490292323=:8001 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --8323329-1137988001-1490292323=:8001-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Tue, 28 Mar 2017 10:30:59 -0700 (PDT) Message-ID: References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> <8dfa724f-091d-9f06-51c9-64d233bdea04@arm.com> <0095A93B-AC2C-4922-AD99-AA3F4277BAAD@gmail.com> Mime-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323329-1242190394-1490721561=:8001" Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1csuxW-0008Mt-Hr for xen-devel@lists.xenproject.org; Tue, 28 Mar 2017 17:31:06 +0000 In-Reply-To: <0095A93B-AC2C-4922-AD99-AA3F4277BAAD@gmail.com> Content-ID: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Luca Miccio Cc: Stefano Stabellini , andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-1242190394-1490721561=:8001 Content-Type: TEXT/PLAIN; CHARSET=UTF-8 Content-Transfer-Encoding: 8BIT Content-ID: Hello Luca, did you manage to make any progress on the number of cores exposed by the model? Thank you for the Makefile patch! If you have time, I encourage you to fix one of the other small outstanding bugs, for example XEN-20 or XEN-11 (just the ability to load a Dom0 kernel bigger than 128MB or just the ability to parse the new image_size field introduced in Linux 3.17). Finally, I would like to remind you of the upcoming deadline for applications submissions, which is the 3rd of April for GSoC, see: http://marc.info/?l=xen-devel&m=149071502330534 The GSoC application system is https://summerofcode.withgoogle.com/get-started/. Please give a look at the Xen Project application template here: https://wiki.xenproject.org/wiki/GSoC_Student_Application_Template It also includes an "Implementation Plan", where you have the chance to explain the implementation plan for the project you would like to apply for. Thanks, Stefano On Thu, 23 Mar 2017, Luca Miccio wrote: > Hello Julien > > Il giorno 23 mar 2017, alle ore 15:49, Julien Grall ha scritto: > > > > Hello Luca, > > > > On 23/03/17 02:23, Luca Miccio wrote: > >> I tried also this method but i had the same error. So i came up with the > >> idea of removing the > >> psci method from the configure and also from the dtsi file that i have > >> changed. > > > > I guess you are using only 1 core in this case. Am I right? > > > No, i am using 4 cores, with —cores option and i think that i am using actually 4 cores > because on the model “control panel” i have 4 green triangles which ones of them should > represent the number of cores and their status. > It is only my opinion so, please, tell me if i am wrong. > >> > >> With this configuration the model booted up correctly, even if the > >> process took about 10 minutes. > >> Just for my personal knowledge: it is normal that the boot is very slow? > >> Is the rootfs that i’m using? > > > > Booting a full distro on the model can be slow. Usually I write my own initscript to start the necessary daemon and skip systemd. > > > > 42sh> cat /root/init.sh > > > > set -x > > mount -t proc proc /proc > > mount -t devtmpfs dev /dev > > > > export HOME=/root > > > > rm -rf /var/run/xenstore > > rm -rf /var/run/xen > > > > /etc/init.d/xencommons start > > > > exec /bin/bash > > > > ------------------- > > > > And I pass init=/root/init.sh on the Linux kernel command line. > > > That helped a lot, thank you. > > Cheers, > > > > -- > > Julien Grall > > Luca. > --8323329-1242190394-1490721561=:8001 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --8323329-1242190394-1490721561=:8001-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Tue, 28 Mar 2017 17:13:54 -0700 (PDT) Message-ID: References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> <8dfa724f-091d-9f06-51c9-64d233bdea04@arm.com> <0095A93B-AC2C-4922-AD99-AA3F4277BAAD@gmail.com> Mime-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323329-480062439-1490746403=:27589" Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ct1FS-0002Su-VL for xen-devel@lists.xenproject.org; Wed, 29 Mar 2017 00:14:03 +0000 In-Reply-To: Content-ID: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini Cc: andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , Luca Miccio , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-480062439-1490746403=:27589 Content-Type: TEXT/PLAIN; CHARSET=UTF-8 Content-Transfer-Encoding: 8BIT Content-ID: On Tue, 28 Mar 2017, Stefano Stabellini wrote: > Hello Luca, > > did you manage to make any progress on the number of cores exposed by the model? > > Thank you for the Makefile patch! If you have time, I encourage you to > fix one of the other small outstanding bugs, for example XEN-20 or > XEN-11 (just the ability to load a Dom0 kernel bigger than 128MB or just > the ability to parse the new image_size field introduced in Linux 3.17). > > Finally, I would like to remind you of the upcoming deadline for > applications submissions, which is the 3rd of April for GSoC, see: > > http://marc.info/?l=xen-devel&m=149071502330534 > > The GSoC application system is > https://summerofcode.withgoogle.com/get-started/. > > Please give a look at the Xen Project application template here: > > https://wiki.xenproject.org/wiki/GSoC_Student_Application_Template > > It also includes an "Implementation Plan", where you have the chance to > explain the implementation plan for the project you would like to apply > for. FYI I added some more information on this project here: http://marc.info/?l=xen-devel&m=149074542307880 > > On Thu, 23 Mar 2017, Luca Miccio wrote: > > Hello Julien > > > Il giorno 23 mar 2017, alle ore 15:49, Julien Grall ha scritto: > > > > > > Hello Luca, > > > > > > On 23/03/17 02:23, Luca Miccio wrote: > > >> I tried also this method but i had the same error. So i came up with the > > >> idea of removing the > > >> psci method from the configure and also from the dtsi file that i have > > >> changed. > > > > > > I guess you are using only 1 core in this case. Am I right? > > > > > No, i am using 4 cores, with —cores option and i think that i am using actually 4 cores > > because on the model “control panel” i have 4 green triangles which ones of them should > > represent the number of cores and their status. > > It is only my opinion so, please, tell me if i am wrong. > > >> > > >> With this configuration the model booted up correctly, even if the > > >> process took about 10 minutes. > > >> Just for my personal knowledge: it is normal that the boot is very slow? > > >> Is the rootfs that i’m using? > > > > > > Booting a full distro on the model can be slow. Usually I write my own initscript to start the necessary daemon and skip systemd. > > > > > > 42sh> cat /root/init.sh > > > > > > set -x > > > mount -t proc proc /proc > > > mount -t devtmpfs dev /dev > > > > > > export HOME=/root > > > > > > rm -rf /var/run/xenstore > > > rm -rf /var/run/xen > > > > > > /etc/init.d/xencommons start > > > > > > exec /bin/bash > > > > > > ------------------- > > > > > > And I pass init=/root/init.sh on the Linux kernel command line. > > > > > That helped a lot, thank you. > > > Cheers, > > > > > > -- > > > Julien Grall > > > > Luca. > > --8323329-480062439-1490746403=:27589 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --8323329-480062439-1490746403=:27589-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Wed, 29 Mar 2017 09:07:44 +0100 Message-ID: <1c5ad4f2-bfdb-a351-a323-48b30e9c6e3e@arm.com> References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> <8dfa724f-091d-9f06-51c9-64d233bdea04@arm.com> <0095A93B-AC2C-4922-AD99-AA3F4277BAAD@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ct8dw-0005I2-Af for xen-devel@lists.xenproject.org; Wed, 29 Mar 2017 08:07:48 +0000 In-Reply-To: <0095A93B-AC2C-4922-AD99-AA3F4277BAAD@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Luca Miccio Cc: Stefano Stabellini , andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org SGkgTHVjYSwKCk9uIDIzLzAzLzIwMTcgMTg6MDMsIEx1Y2EgTWljY2lvIHdyb3RlOgo+IEhlbGxv IEp1bGllbgo+PiBJbCBnaW9ybm8gMjMgbWFyIDIwMTcsIGFsbGUgb3JlIDE1OjQ5LCBKdWxpZW4g R3JhbGwgPGp1bGllbi5ncmFsbEBhcm0uY29tPiBoYSBzY3JpdHRvOgo+Pgo+PiBIZWxsbyBMdWNh LAo+Pgo+PiBPbiAyMy8wMy8xNyAwMjoyMywgTHVjYSBNaWNjaW8gd3JvdGU6Cj4+PiBJIHRyaWVk IGFsc28gdGhpcyBtZXRob2QgYnV0IGkgaGFkIHRoZSBzYW1lIGVycm9yLiBTbyBpIGNhbWUgdXAg d2l0aCB0aGUKPj4+IGlkZWEgb2YgcmVtb3ZpbmcgdGhlCj4+PiBwc2NpIG1ldGhvZCBmcm9tIHRo ZSBjb25maWd1cmUgYW5kIGFsc28gZnJvbSB0aGUgZHRzaSBmaWxlIHRoYXQgaSBoYXZlCj4+PiBj aGFuZ2VkLgo+Pgo+PiBJIGd1ZXNzIHlvdSBhcmUgdXNpbmcgb25seSAxIGNvcmUgaW4gdGhpcyBj YXNlLiBBbSBJIHJpZ2h0Pwo+Pgo+IE5vLCBpIGFtIHVzaW5nIDQgY29yZXMsIHdpdGgg4oCUY29y ZXMgb3B0aW9uIGFuZCBpIHRoaW5rIHRoYXQgaSBhbSB1c2luZyBhY3R1YWxseSA0IGNvcmVzCj4g YmVjYXVzZSBvbiB0aGUgbW9kZWwg4oCcY29udHJvbCBwYW5lbOKAnSBpIGhhdmUgNCBncmVlbiB0 cmlhbmdsZXMgd2hpY2ggb25lcyBvZiB0aGVtIHNob3VsZAo+IHJlcHJlc2VudCB0aGUgbnVtYmVy IG9mIGNvcmVzIGFuZCB0aGVpciBzdGF0dXMuCj4gSXQgaXMgb25seSBteSBvcGluaW9uIHNvLCBw bGVhc2UsIHRlbGwgbWUgaWYgaSBhbSB3cm9uZy4KClNvcnJ5IGJ5ICJJIGd1ZXNzIHlvdSBhcmUg dXNpbmcgb25seSAxIGNvcmUiIEkgbWVhbnQgWGVuIHdpbGwgb25seSBicmluZyAKdXAgb25lIGNh cmUgaWYgeW91IGRyb3AgdGhlIFBTQ0kgbWV0aG9kLiBZb3UgY2FuIGZpbmQgaW4gdGhlIGxvZyB0 aGUgCm51bWJlciBvZiBDUFVzIGJyb3VnaHQgYnkgWGVuIChzZWUgIkJyb3VnaHQgdXAgTiBDUFVz Ii4KCkNoZWVycywKCi0tIApKdWxpZW4gR3JhbGwKCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxp c3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Miccio Subject: Re: [GSoC] Xen on ARM: create multiple guests from device tree Date: Thu, 30 Mar 2017 20:14:14 +0200 Message-ID: <2269F9CB-1227-46D9-918D-6D60073D6559@gmail.com> References: <58D17A85.5050709@gmail.com> <2A15827A-D2E8-4D7C-96F2-076A0C6AD8EC@gmail.com> <172A126F-34AD-48BC-A305-0C3F43623E76@gmail.com> <075C6339-D4FD-4518-BE67-B63D2B4960EF@gmail.com> <8dfa724f-091d-9f06-51c9-64d233bdea04@arm.com> <0095A93B-AC2C-4922-AD99-AA3F4277BAAD@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) Content-Type: multipart/mixed; boundary="===============1942127081704901504==" Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cteaQ-0002Vl-Rj for xen-devel@lists.xenproject.org; Thu, 30 Mar 2017 18:14:19 +0000 Received: by mail-wr0-f196.google.com with SMTP id k6so13048822wre.3 for ; Thu, 30 Mar 2017 11:14:16 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini Cc: andre.przywara@arm.com, Dario.faggioli@citrix.com, Stefano Stabellini , Julien Grall , xen-devel@lists.xenproject.org, nd@arm.com List-Id: xen-devel@lists.xenproject.org --===============1942127081704901504== Content-Type: multipart/alternative; boundary="Apple-Mail=_72363C2C-6911-446C-896A-B4775D2FE49D" --Apple-Mail=_72363C2C-6911-446C-896A-B4775D2FE49D Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Stefano, sorry if i am so late but my schedule was full this week. I am currently = preparing a presentation for an event here in Italy and i had no time to check even my emails. > Il giorno 29 mar 2017, alle ore 02:13, Stefano Stabellini = ha scritto: >=20 > On Tue, 28 Mar 2017, Stefano Stabellini wrote: >> Hello Luca, >>=20 >> did you manage to make any progress on the number of cores exposed by = the model? >>=20 I am still not using the psci and the XEN console says that he is = bringing up all the 4 CPUs. >> Thank you for the Makefile patch! If you have time, I encourage you = to >> fix one of the other small outstanding bugs, for example XEN-20 or >> XEN-11 (just the ability to load a Dom0 kernel bigger than 128MB or = just >> the ability to parse the new image_size field introduced in Linux = 3.17). >>=20 I will try to give it a look this weekend but i am not sure to have the = time to make e fix soon.=20 >> Finally, I would like to remind you of the upcoming deadline for >> applications submissions, which is the 3rd of April for GSoC, see: >>=20 >> http://marc.info/?l=3Dxen-devel&m=3D149071502330534 >>=20 >> The GSoC application system is >> https://summerofcode.withgoogle.com/get-started/. >>=20 >> Please give a look at the Xen Project application template here: >>=20 >> https://wiki.xenproject.org/wiki/GSoC_Student_Application_Template >>=20 >> It also includes an "Implementation Plan", where you have the chance = to >> explain the implementation plan for the project you would like to = apply >> for. >=20 > FYI I added some more information on this project here: > http://marc.info/?l=3Dxen-devel&m=3D149074542307880 = >=20 Thank you for all the information. Unfortunately I have not considered = all of my personal deadlines before attempting to approach this project. It was my mistake. Anyway I = will try with all my strength to fill up the application this weekend and try to submit it anyway. I = like the Xen project, and even if I will not be chosen for this task, surely I will continue to support = and follow it diligently. >=20 >>=20 >> On Thu, 23 Mar 2017, Luca Miccio wrote: >>> Hello Julien >>>> Il giorno 23 mar 2017, alle ore 15:49, Julien Grall = ha scritto: >>>>=20 >>>> Hello Luca, >>>>=20 >>>> On 23/03/17 02:23, Luca Miccio wrote: >>>>> I tried also this method but i had the same error. So i came up = with the >>>>> idea of removing the >>>>> psci method from the configure and also from the dtsi file that i = have >>>>> changed. >>>>=20 >>>> I guess you are using only 1 core in this case. Am I right? >>>>=20 >>> No, i am using 4 cores, with =E2=80=94cores option and i think that = i am using actually 4 cores >>> because on the model =E2=80=9Ccontrol panel=E2=80=9D i have 4 green = triangles which ones of them should >>> represent the number of cores and their status.=20 >>> It is only my opinion so, please, tell me if i am wrong. >>>>>=20 >>>>> With this configuration the model booted up correctly, even if the >>>>> process took about 10 minutes. >>>>> Just for my personal knowledge: it is normal that the boot is very = slow? >>>>> Is the rootfs that i=E2=80=99m using? >>>>=20 >>>> Booting a full distro on the model can be slow. Usually I write my = own initscript to start the necessary daemon and skip systemd. >>>>=20 >>>> 42sh> cat /root/init.sh >>>>=20 >>>> set -x >>>> mount -t proc proc /proc >>>> mount -t devtmpfs dev /dev >>>>=20 >>>> export HOME=3D/root >>>>=20 >>>> rm -rf /var/run/xenstore >>>> rm -rf /var/run/xen >>>>=20 >>>> /etc/init.d/xencommons start >>>>=20 >>>> exec /bin/bash >>>>=20 >>>> ------------------- >>>>=20 >>>> And I pass init=3D/root/init.sh on the Linux kernel command line. >>>>=20 >>> That helped a lot, thank you. >>>> Cheers, >>>>=20 >>>> --=20 >>>> Julien Grall >>>=20 >>> Luca. Thank you, Luca --Apple-Mail=_72363C2C-6911-446C-896A-B4775D2FE49D Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi Stefano,
sorry if i am so late but my = schedule was full this week. I am currently preparing a presentation for = an event here
in Italy and i had no time to check = even my emails.

Il giorno 29 mar 2017, alle ore = 02:13, Stefano Stabellini <sstabellini@kernel.org> ha scritto:

On Tue, 28 Mar 2017, Stefano Stabellini = wrote:
Hello Luca,

did you manage to make any progress on the number of cores = exposed by the model?

I am still not using the psci = and the XEN console says that he is bringing up all the 4 CPUs.
Thank you for the Makefile = patch! If you have time, I encourage you to
fix one of the = other small outstanding bugs, for example XEN-20 or
XEN-11 = (just the ability to load a Dom0 kernel bigger than 128MB or just
the ability to parse the new image_size field introduced in = Linux 3.17).

I will try to give it a look = this weekend but i am not sure to have the time to
before attempting to approach this = project. It was my mistake. Anyway I will try with all my = strength
to fill up the application this weekend and try to = submit it anyway. I like the Xen project, and even if
I will = not be chosen for this task, surely I will continue to support and = follow it diligently.



On Thu, 23 = Mar 2017, Luca Miccio wrote:
Hello Julien
Il giorno 23 mar 2017, alle ore 15:49, Julien Grall <julien.grall@arm.com> ha scritto:

Hello Luca,

On 23/03/17 02:23, = Luca Miccio wrote:
I = tried also this method but i had the same error. So i came up with = the
idea of removing the
psci method from = the configure and also from the dtsi file that i have
changed.

I guess = you are using only 1 core in this case. Am I right?

No, i am using 4 cores, with =E2=80=94cores = option and i think that i am using actually 4 cores
because = on the model =E2=80=9Ccontrol panel=E2=80=9D i have 4 green triangles = which ones of them should
represent the number of cores = and their status. 
It is only my opinion so, please, tell me if i am wrong.

With this configuration the model booted up = correctly, even if the
process took about 10 minutes.
Just for my personal knowledge: it is normal that the boot is = very slow?
Is the rootfs that i=E2=80=99m using?

Booting a full distro on the = model can be slow. Usually I write my own initscript to start the = necessary daemon and skip systemd.

42sh> = cat /root/init.sh

set -x
mount = -t proc proc  /proc
mount -t devtmpfs dev /dev

export HOME=3D/root

rm -rf /var/run/xenstore
rm -rf /var/run/xen

/etc/init.d/xencommons start

exec /bin/bash

-------------------

And I pass = init=3D/root/init.sh on the Linux kernel command line.

That helped a lot, thank you.
Cheers,

-- 
Julien Grall

Luca.
Thank = you,
Luca

= --Apple-Mail=_72363C2C-6911-446C-896A-B4775D2FE49D-- --===============1942127081704901504== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --===============1942127081704901504==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denis Obrezkov Subject: [GSOC] Xen on ARM: create multiple guests from device tree Date: Sun, 4 Feb 2018 09:53:15 +0300 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eiEAw-00066l-G6 for xen-devel@lists.xenproject.org; Sun, 04 Feb 2018 06:53:18 +0000 Received: by mail-vk0-x236.google.com with SMTP id g83so15909011vki.4 for 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From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denis Obrezkov Subject: Re: [GSOC] Xen on ARM: create multiple guests from device tree Date: Sun, 4 Feb 2018 10:25:15 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eiEft-0008Ei-OW for xen-devel@lists.xenproject.org; Sun, 04 Feb 2018 07:25:17 +0000 Received: by mail-ua0-x235.google.com with SMTP id z3so16790544uae.12 for ; Sat, 03 Feb 2018 23:25:16 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: sstabellini@kernel.org, julien.grall@arm.com, xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org MjAxOC0wMi0wNCA5OjUzIEdNVCswMzowMCBEZW5pcyBPYnJlemtvdiA8ZGVuaXNvYnJlemtvdkBn 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device tree Date: Mon, 5 Feb 2018 09:53:39 -0800 (PST) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eikxa-0008FH-Ko for xen-devel@lists.xenproject.org; Mon, 05 Feb 2018 17:53:42 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Denis Obrezkov Cc: edgar.iglesias@xilinx.com, xen-devel@lists.xenproject.org, julien.grall@arm.com, sstabellini@kernel.org List-Id: xen-devel@lists.xenproject.org Q0MnaW5nIEVkZ2FyIHdobyBpcyBjby1tZW50b3JpbmcgdGhpcyBwcm9qZWN0CgpPbiBTdW4sIDQg RmViIDIwMTgsIERlbmlzIE9icmV6a292IHdyb3RlOgo+IEhlbGxvIGFsbCwKPiAKPiBJIHdvdWxk IGxpa2UgdG8gcGFydGljaXBhdGUgaW4gR1NvQyAyMDE4IHdpdGggdGhlIHByb2plY3QgWGVuIG9u 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List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Stefano Stabellini Cc: edgar.iglesias@xilinx.com, xen-devel@lists.xenproject.org, julien.grall@arm.com List-Id: xen-devel@lists.xenproject.org PiBIZWxsbyBEZW5pcywKPgpIZWxsbyBTdGVmYW5vLAo+IGl0IGlzIGdyZWF0IHRvIHNlZSBpbnRl cmVzdCBpbiBYZW4gb24gQVJNIGFuZCB0aGlzIHByb2plY3QhCj4KPiBVbmZvcnR1bmF0ZWx5IFJQ aTMgY2FuJ3QgcnVuIFhlbiBhcyBmYXIgYXMgSSBrbm93IGR1ZSB0byB0aGVpciBub24tQVJNCj4g aW50ZXJydXB0IGNvbnRyb2xsZXIgd2l0aG91dCB2aXJ0dWFsaXphdGlvbiBzdXBwb3J0LiBPdGhl cndpc2UgaXQgd291bGQKPiBoYXZlIGJlZW4gYSBnb29kIGRldiBib2FyZC4gVGhlIEJlYWdsZUJv YXJkIGRvZXNuJ3QgaGF2ZSBwcm9jZXNzb3JzIHdpdGgKPiB2aXJ0dWFsaXphdGlvbiBzdXBwb3J0 IHNvIGl0IGNhbm5vdCBydW4gWGVuIGVpdGhlciAoaXQgbmVlZHMgYW4gQ29ydGV4Cj4gQTcgb3Ig QTE1KS4KSSBoYXZlIFJQaTIgYW5kIGl0IGhhcyBDb3J0ZXggQTcgQUZBSUsuCj4KPiBCdXQgdGhh dCdzIG5vdCBhIHByb2JsZW0sIGJlY2F1c2UgdGhlIGxhdGVzdCBRRU1VICgyLjExKSBjYW4gcnVu 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00:00:00 1970 From: Stefano Stabellini Subject: Re: [GSOC] Xen on ARM: create multiple guests from device tree Date: Tue, 6 Feb 2018 16:08:12 -0800 (PST) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ejDHh-0002et-JY for xen-devel@lists.xenproject.org; Wed, 07 Feb 2018 00:08:21 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Denis Obrezkov Cc: edgar.iglesias@xilinx.com, xen-devel@lists.xenproject.org, julien.grall@arm.com, Stefano Stabellini List-Id: xen-devel@lists.xenproject.org T24gVHVlLCA2IEZlYiAyMDE4LCBEZW5pcyBPYnJlemtvdiB3cm90ZToKPiA+IEhlbGxvIERlbmlz LAo+ID4KPiBIZWxsbyBTdGVmYW5vLAo+ID4gaXQgaXMgZ3JlYXQgdG8gc2VlIGludGVyZXN0IGlu 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multiple guests from device tree Date: Thu, 8 Feb 2018 11:27:38 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ejhYT-0006e9-4K for xen-devel@lists.xenproject.org; Thu, 08 Feb 2018 08:27:41 +0000 Received: by mail-vk0-x231.google.com with SMTP id g83so2254824vki.4 for ; Thu, 08 Feb 2018 00:27:39 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Stefano Stabellini Cc: edgar.iglesias@xilinx.com, xen-devel@lists.xenproject.org, julien.grall@arm.com List-Id: xen-devel@lists.xenproject.org PiBHb29kISBQbGVhc2UgY29tcGlsZSBYZW4gZm9yIEFSTTY0IGFuZCB0cnkgdG8gYm9vdCBYZW4g YW5kIERvbTAgd2l0aCBpdC4KPiBPbmNlIHlvdSBoYXZlIFhlbiBhbmQgRG9tMCB1cCBhbmQgcnVu 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cmVjZWl2ZWQuLi4kMzYwMC4gVGhhdCB3YXMgdW5mYWlyISBDb3VsZCB5b3UgaW1hZ2luZSB3aGF0 IG15IGZlbGxvdwpmcm9tIEluZGlhIGZlbHQgd2hvIG1hZGUgYW4gZXhjZWxsZW50IHByb2plY3Qg YW5kIHJlY2VpdmVkIG9ubHkgJDI0MDAuCgpQLlMuIElzIHhlbi1wcm9qZWN0IGdvaW5nIHRvIHBh cnRpY2lwYXRlIGluIE91dHJlYWNoeT8KCgotLSAKUmVnYXJkcywgRGVuaXMgT2JyZXprb3YKCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBt YWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMu eGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw= From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: Re: [GSOC] Xen on ARM: create multiple guests from device tree Date: Thu, 8 Feb 2018 08:26:03 -0800 (PST) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ejp1X-0000ie-BH for xen-devel@lists.xenproject.org; Thu, 08 Feb 2018 16:26:11 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Denis Obrezkov Cc: edgar.iglesias@xilinx.com, xen-devel@lists.xenproject.org, julien.grall@arm.com, Stefano Stabellini , lars.kurth@citrix.com List-Id: xen-devel@lists.xenproject.org T24gVGh1LCA4IEZlYiAyMDE4LCBEZW5pcyBPYnJlemtvdiB3cm90ZToKPiA+IEdvb2QhIFBsZWFz ZSBjb21waWxlIFhlbiBmb3IgQVJNNjQgYW5kIHRyeSB0byBib290IFhlbiBhbmQgRG9tMCB3aXRo IGl0Lgo+ID4gT25jZSB5b3UgaGF2ZSBYZW4gYW5kIERvbTAgdXAgYW5kIHJ1bm5pbmcsIHlvdSBj YW4gdHJ5IHRvIGNyZWF0ZSBhIHNtYWxsCj4gPiBndWVzdCBhbmQgc3RhcnQgdGhhdCBhcyB3ZWxs LiBJdCB3aWxsIGhlbHAgeW91IHNldHVwIHlvdXIgYnVpbGQgYW5kIHRlc3QKPiA+IGVudmlyb25t ZW50cy4KPiA+Cj4gPiBUbyBidWlsZCBYZW4gZm9yIEFSTTY0LCB5b3UgY2FuIHVzZSBuYXRpdmUg Y29tcGlsYXRpb24gaW5zaWRlIHRoZQo+ID4gcWVtdS1zeXN0ZW0tYWFyY2g2NCBlbXVsYXRpb24s 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