Andrii,

YEY!

I have finally got an error message!

The re= st of the mail is inline.

2019=E5=B9=B41=E6=9C=8828=E6=97=A5(=E6= =9C=88) 17:25 Andrii Anisov <= andrii.anisov@gmail.com>:

Hello Jairo,

On 28.01.19 19:20, LOPEZ, FUENTES NACARINO Jairo Eduardo wrote:

> I was able to compile the Xen image with earlyprintk without issue.
Cool.

> It is comforting to get some sort of feedback from the device, even if= it is failing.

Indeed:)

> When attempting to boot the Xen image created I did get print messages= but I get the following:
...

I see you have freshly built BL2:

> [=C2=A0 =C2=A0 0.120591] NOTICE:=C2=A0 BL2: v1.4(release):15dba6b
> [=C2=A0 =C2=A0 0.125081] NOTICE:=C2=A0 BL2: Built : 11:34:26, Jan 21 2= 019
...
> - UART enabled -
> - CPU 00000000 booting -
> - Current EL 00000004 -
> - Xen must be entered in NS EL2 mode -

But something went wrong, and your BL2 did not start u-boot in EL2. Consequ= ently, hypervisor is not started in EL2 and can not do its work.
Please verify you have your ATF built with ` RCAR_BL33_EXECUTION_EL=3DBL33_= EL2` as it is stated in the correspondent recipe [1].
You can search for it in <yocto dir>/build/tmp/work/<board name>= ;-poky-linux/v1.4+renesas+<revision>/tmp/* .
And if it is compiled with the flag, then take care to reflash all bootload= er images on your board.

[1] https://github.com/xen-troops/meta= -demo/blob/master/meta-rcar-gen3-xen/recipes-bsp/arm-trusted-firmware/arm-t= rusted-firmware_git.bbappend

--
Sincerely,
Andrii Anisov.

As you me= ntioned, I checked the ATF build at the following path:

<yocto dir>/build/tmp/work/<board name>-poky-linux/arm-tr= usted-firmware/v1.4+renesas+<revision>/temp

= Much to my surprise I found no trace of thr RCAR_BL33_EXECUTION_EL=3DBL33_E= L2.

It seems that at some point in time I removed = the Xen troops meta-demo layer which nullified the ATFW_OPT_append in that = layer.

I was able to readjust the layers and check= that the compilation included the necessary ATF option.

After a successful u-boot firmware update, I was met with the follow= ing information on the R-Car M3:

[=C2=A0=C2=A0=C2= =A0 0.000191] NOTICE:=C2=A0 BL2: R-Car Gen3 Initial Program Loader(CA57) Re= v.1.0.21
[=C2=A0=C2=A0=C2=A0 0.005753] NOTICE:=C2=A0 BL2: PRR is R-Car M= 3 Ver.1.0
[=C2=A0=C2=A0=C2=A0 0.010422] NOTICE:=C2=A0 BL2: Board is Star= ter Kit Rev.1.0
[=C2=A0=C2=A0=C2=A0 0.015534] NOTICE:=C2=A0 BL2: Boot de= vice is HyperFlash(80MHz)
[=C2=A0=C2=A0=C2=A0 0.020960] NOTICE:=C2=A0 BL= 2: LCM state is CM
[=C2=A0=C2=A0=C2=A0 0.025002] NOTICE:=C2=A0 BL2: AVS = setting succeeded. DVFS_SetVID=3D0x53
[=C2=A0=C2=A0=C2=A0 0.030989] NOTI= CE:=C2=A0 BL2: DDR3200(rev.0.33)NOTICE:=C2=A0 [COLD_BOOT]NOTICE:=C2=A0 ..0<= br>[=C2=A0=C2=A0=C2=A0 0.086113] NOTICE:=C2=A0 BL2: DRAM Split is 2ch
[= =C2=A0=C2=A0=C2=A0 0.089998] NOTICE:=C2=A0 BL2: QoS is default setting(rev.= 0.19)
[=C2=A0=C2=A0=C2=A0 0.095502] NOTICE:=C2=A0 BL2: Lossy Decomp area= s
[=C2=A0=C2=A0=C2=A0 0.099675] NOTICE:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 Entry 0: DCMPAREACRAx:0x80000540 DCMPAREACRBx:0x570
[=C2=A0=C2=A0=C2= =A0 0.106760] NOTICE:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Entry 1: DCMPAREA= CRAx:0x40000000 DCMPAREACRBx:0x0
[=C2=A0=C2=A0=C2=A0 0.113672] NOTICE:= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Entry 2: DCMPAREACRAx:0x20000000 DCMPA= REACRBx:0x0
[=C2=A0=C2=A0=C2=A0 0.120586] NOTICE:=C2=A0 BL2: v1.4(releas= e):15dba6b
[=C2=A0=C2=A0=C2=A0 0.125076] NOTICE:=C2=A0 BL2: Built : 14:4= 8:12, Jan 29 2019
[=C2=A0=C2=A0=C2=A0 0.130264] NOTICE:=C2=A0 BL2: Norma= l boot
[=C2=A0=C2=A0=C2=A0 0.133909] NOTICE:=C2=A0 BL2: dst=3D0xe6320d00= src=3D0x8180000 len=3D512(0x200)
[=C2=A0=C2=A0=C2=A0 0.140292] NOTICE:= =C2=A0 BL2: dst=3D0x43f00000 src=3D0x8180400 len=3D6144(0x1800)
[=C2=A0= =C2=A0=C2=A0 0.146913] NOTICE:=C2=A0 BL2: dst=3D0x44000000 src=3D0x81c0000 = len=3D65536(0x10000)
[=C2=A0=C2=A0=C2=A0 0.154144] NOTICE:=C2=A0 BL2: ds= t=3D0x44100000 src=3D0x8200000 len=3D1048576(0x100000)
[=C2=A0=C2=A0=C2= =A0 0.168967] NOTICE:=C2=A0 BL2: dst=3D0x50000000 src=3D0x8640000 len=3D104= 8576(0x100000)

U-Boot 2015.04 (Jan 21 2019 - 20:33:02)

CP= U: Renesas Electronics R8A7796 rev 1.0
Board: M3ULCB
I2C:=C2=A0=C2=A0= ready
DRAM:=C2=A0 1.9 GiB
Bank #0: 0x048000000 - 0x07fffffff, 896 Mi= B
Bank #1: 0x600000000 - 0x63fffffff, 1 GiB

MMC:=C2=A0=C2=A0 sh-s= dhi: 0, sh-sdhi: 1
In:=C2=A0=C2=A0=C2=A0 serial
Out:=C2=A0=C2=A0 seri= al
Err:=C2=A0=C2=A0 serial
Net:=C2=A0=C2=A0 ravb

First, it is nice to know where to look for the build time for the= BL2!

After loading earlyprintk enabled Xen an= d the 4.14 Linux kernel from Yocto 3.9, I was met with the following output= :

Starting kernel ...

- UART enabled -
-= CPU 00000000 booting -
- Current EL 00000008 -
- Xen starting at EL2= -
- Zero BSS -
- Setting up control registers -
- Turning on pagi= ng -
- Ready -
(XEN) Checking for initrd in /chosen
(XEN) RAM: 000= 0000048000000 - 000000007fffffff
(XEN) RAM: 0000000600000000 - 000000063= fffffff
(XEN) RAM: 0000000600000000 - 000000063fffffff
(XEN)
(XEN= ) MODULE[0]: 0000000048000000 - 0000000048011000 Device Tree
(XEN) MODU= LE[1]: 000000007a000000 - 000000007c000000 Kernel=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0
(XEN)=C2=A0 RESVD[0]: 0000000048000000 - 0000000048011000
(XE= N)
(XEN)
(XEN) Command line: dom0_mem=3D752M console=3Ddtuart dtuar= t=3Dserial0 dom0_max_vcpus=3D4
(XEN) PFN compression on bits 19...20
= (XEN) Xen BUG at page_alloc.c:274
(XEN) ----[ Xen-4.12.0-rc=C2=A0 arm64= =C2=A0 debug=3Dy=C2=A0=C2=A0 Not tainted ]----
(XEN) CPU:=C2=A0=C2=A0=C2= =A0 0
(XEN) PC:=C2=A0=C2=A0=C2=A0=C2=A0 000000000028b310 page_alloc.c#bo= otmem_region_add+0x188/0x198
(XEN) LR:=C2=A0=C2=A0=C2=A0=C2=A0 000000000= 028b370
(XEN) SP:=C2=A0=C2=A0=C2=A0=C2=A0 00000000002d7d00
(XEN) CPSR= :=C2=A0=C2=A0 800003c9 MODE:64-bit EL2h (Hypervisor, handler)
(XEN)=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 X0: 0000000000600000=C2=A0 X1: 0000000000000003= =C2=A0 X2: 0000000000000004
(XEN)=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 X3: 0000= 000000640000=C2=A0 X4: 0000800008011000=C2=A0 X5: 0000000000000028
(XEN)= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 X6: 0000000000600000=C2=A0 X7: 0000000000000= 004=C2=A0 X8: 0000000000000001
(XEN)=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 X9: 0= 00000000000000a X10: 00000000002d7afa X11: 0000000000000032
(XEN)=C2=A0= =C2=A0=C2=A0=C2=A0 X12: 0000000000000002 X13: 000000000026e5d8 X14: 0000000= 000000020
(XEN)=C2=A0=C2=A0=C2=A0=C2=A0 X15: 0000000000400000 X16: 00000= 00000000000 X17: 0000000000000000
(XEN)=C2=A0=C2=A0=C2=A0=C2=A0 X18: 000= 000007fe5ae30 X19: 0000000000600000 X20: 0000000000640000
(XEN)=C2=A0=C2= =A0=C2=A0=C2=A0 X21: 0000000640000000 X22: 0000000600000000 X23: 0000000640= 000000
(XEN)=C2=A0=C2=A0=C2=A0=C2=A0 X24: 000000000028b320 X25: 00000000= 002b83e0 X26: 0000000048000000
(XEN)=C2=A0=C2=A0=C2=A0=C2=A0 X27: 000000= 0640000000 X28: 0000000000000002=C2=A0 FP: 00000000002d7d00
(XEN)
(X= EN)=C2=A0=C2=A0 VTCR_EL2: 80000000
(XEN)=C2=A0 VTTBR_EL2: 00000000000000= 00
(XEN)
(XEN)=C2=A0 SCTLR_EL2: 30cd183d
(XEN)=C2=A0=C2=A0=C2=A0 = HCR_EL2: 000000000078663f
(XEN)=C2=A0 TTBR0_EL2: 0000000078194000
(XE= N)
(XEN)=C2=A0=C2=A0=C2=A0 ESR_EL2: f2000001
(XEN)=C2=A0 HPFAR_EL2: = 0000000000000000
(XEN)=C2=A0=C2=A0=C2=A0 FAR_EL2: 0000000000000000
(X= EN)
(XEN) Xen stack trace from sp=3D00000000002d7d00:
(XEN)=C2=A0=C2= =A0=C2=A0 00000000002d7d40 000000000028b370 0000000000000001 00000006000000= 00
(XEN)=C2=A0=C2=A0=C2=A0 0000000640000000 0000000600000000 00000006400= 00000 00000000002d7d90
(XEN)=C2=A0=C2=A0=C2=A0 00000000002d7d90 00000000= 0029c81c 0000000000000001 0000000600000000
(XEN)=C2=A0=C2=A0=C2=A0 00000= 00640000000 0000000600000000 0000000640000000 0000000000000001
(XEN)=C2= =A0=C2=A0=C2=A0 00000000002e0000 0000000600000000 00000000002d7de0 00000000= 0029d9e8
(XEN)=C2=A0=C2=A0=C2=A0 0000000640000000 0000000600000000 00000= 00640000000 00000000002b83c0
(XEN)=C2=A0=C2=A0=C2=A0 ffffffffffffffff 00= 000000002b83d8 0000000048000000 0000000048011000
(XEN)=C2=A0=C2=A0=C2=A0= 000000007fe5a940 0000000000200608 0000000078080000 0000000077e80000
(XE= N)=C2=A0=C2=A0=C2=A0 0000000048000000 0000000000000000 0000000000400000 000= 0000000000000
(XEN)=C2=A0=C2=A0=C2=A0 0000000000000001 0000000000000000 = 0000000078080000 0000000000000400
(XEN)=C2=A0=C2=A0=C2=A0 00000000000000= 00 0000000000011000 0000000048000000 00000000b8000000
(XEN)=C2=A0=C2=A0= =C2=A0 00000000002b83c0 000000000028b320 0000000000000000 0000000000000000<= br>(XEN)=C2=A0=C2=A0=C2=A0 0000000000000000 0000000300000000 ffffffff000000= 00 0000040000000040
(XEN)=C2=A0=C2=A0=C2=A0 0000000000000000 00000000000= 00000 0000000000000000 0000000000000000
(XEN)=C2=A0=C2=A0=C2=A0 00000000= 00000000 0000000000000000 0000000000000000 0000000000000000
(XEN)=C2=A0= =C2=A0=C2=A0 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000
(XEN)=C2=A0=C2=A0=C2=A0 0000000000000000 0000000000000000 00000000= 00000000 0000000000000000
(XEN)=C2=A0=C2=A0=C2=A0 0000000000000000 00000= 00000000000 0000000000000000 0000000000000000
(XEN)=C2=A0=C2=A0=C2=A0 00= 00000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)= =C2=A0=C2=A0=C2=A0 0000000000000000 0000000000000000 0000000000000000 00000= 00000000000
(XEN)=C2=A0=C2=A0=C2=A0 0000000000000000 0000000000000000 00= 00000000000000 0000000000000000
(XEN)=C2=A0=C2=A0=C2=A0 0000000000000000= 0000000000000000 0000000000000000 0000000000000000
(XEN)=C2=A0=C2=A0=C2= =A0 0000000000000000 0000000000000000 0000000000000000 0000000000000000
= (XEN)=C2=A0=C2=A0=C2=A0 0000000000000000 0000000000000000 0000000000000000 = 0000000000000000
(XEN) Xen call trace:
(XEN)=C2=A0=C2=A0=C2=A0 [<0= 00000000028b310>] page_alloc.c#bootmem_region_add+0x188/0x198 (PC)
(X= EN)=C2=A0=C2=A0=C2=A0 [<000000000028b370>] init_boot_pages+0x50/0x17c= (LR)
(XEN)=C2=A0=C2=A0=C2=A0 [<000000000028b370>] init_boot_pages= +0x50/0x17c
(XEN)=C2=A0=C2=A0=C2=A0 [<000000000029c81c>] dt_unrese= rved_regions+0xc8/0xdc
(XEN)=C2=A0=C2=A0=C2=A0 [<000000000029d9e8>= ] start_xen+0xbec/0xc5c
(XEN)=C2=A0=C2=A0=C2=A0 [<0000000000200608>= ;] arm64/head.o#paging+0x60/0x98
(XEN)
(XEN)
(XEN) *************= ***************************
(XEN) Panic on CPU 0:
(XEN) Xen BUG at pa= ge_alloc.c:274
(XEN) ****************************************
(XEN) <= br>(XEN) Reboot in five seconds...

I am using a 4.12.0-rc= Xen, specifically from commit 08b908ba63dee8bc313983c5e412852cbcbcda85 dat= ed Jan 16, 16:16:56 2019.

Do you have any idea wha= t could be the matter?

Thank you very much for all= the support.

Best regards,

Jairo