From embedded-pv-devel-bounces@lists.xenproject.org Tue Dec 05 15:32:18 2017 Return-path: Envelope-to: archives@lists.xenproject.org Delivery-date: Tue, 05 Dec 2017 15:32:18 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eMFCk-0002qh-N6; Tue, 05 Dec 2017 15:32:18 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eMFCj-0002qO-Ok for embedded-pv-devel@lists.xenproject.org; Tue, 05 Dec 2017 15:32:17 +0000 X-Inumbo-ID: 6c755b04-d9d1-11e7-b4a6-bc764e045a96 Received: from mail-wm0-x242.google.com (unknown [2a00:1450:400c:c09::242]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 6c755b04-d9d1-11e7-b4a6-bc764e045a96; Tue, 05 Dec 2017 16:31:55 +0100 (CET) Received: by mail-wm0-x242.google.com with SMTP id n138so2038357wmg.2 for ; Tue, 05 Dec 2017 07:32:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=NWw98R1WJk6Vhtnfutisvpnk4PcDQGcB0qpQgHuwBEQ=; b=AUsuAaEMMrXjujysIzcuGz+7tvn9yWh9PtvSW6g/08g+mecyJVONJs7EQ+enzMPwnx seVPW31gC/A3aXL4xNKHc56I5stHuGQFTqS+90iRXVdc5Mx2rSubai0vEeS23TicZwg8 QBU5lVnCWt6A6qrQsUfio51ySO+DeDXZLl9nA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=NWw98R1WJk6Vhtnfutisvpnk4PcDQGcB0qpQgHuwBEQ=; b=jlKhjyZk7mW8jcmmdmLcsKeXKNC3kfDeZd98hWUIqRHNT0lypMOrlX5zzYeK8D3Q5x hJqWNADTJIgJIlDXeWjUEZ1GoHuE8bRAWEatqB0GEnt7Mi3Z52BX3u+gN54zJYuWFVzD lpS0RJzPmsN6iS9IjV9vyyqZD02kgpejqwJonXk7DQYqq2itXTvmA/G5zayt9Zf9E7oX C46sYLTUjEbgzqhUr371hV5wwU1Cl4pQGJ+ShkiS/NAaBvQOMSisqZMy3bpI1OPwOD1n zhvbFhbCnyVv90rUKoEY4cHUpD82BULa24V/P5R3MRD+0WJOGlO0U5VRwWU0V/fr+6o7 hxgw== X-Gm-Message-State: AJaThX5MiTcWVh4SPqar8W3NvI9rpxM7GsKcOjVcr7/a5gqVMH+0dzqR X230LUSGvV2PGtv9SxPfrR7GIg== X-Google-Smtp-Source: AGs4zMZH7GBx7XZ1keRB0Kr4XpHo+PxJB9AT+KqgjSGkXNxJ28ut3kyvJvHUhvXndFXcNh39Lhcpog== X-Received: by 10.28.70.66 with SMTP id t63mr9815514wma.106.1512487934403; Tue, 05 Dec 2017 07:32:14 -0800 (PST) Received: from ?IPv6:::1? ([2001:41d0:1:6c23::1]) by smtp.gmail.com with ESMTPSA id d23sm716580wma.48.2017.12.05.07.32.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 05 Dec 2017 07:32:13 -0800 (PST) To: PRABHURAJ LAXMIKANT , embedded-pv-devel@lists.xenproject.org References: From: Julien Grall Message-ID: <55d8f521-b07d-916c-e87b-456544ee5ed1@linaro.org> Date: Tue, 5 Dec 2017 15:31:57 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Cc: iurii.mykhalskyi@globallogic.com Subject: Re: [Embedded-pv-devel] Problem getting console on TI Jacinto 6 X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" 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<55d8f521-b07d-916c-e87b-456544ee5ed1@linaro.org> References: <55d8f521-b07d-916c-e87b-456544ee5ed1@linaro.org> From: Iurii Mykhalskyi Date: Tue, 5 Dec 2017 17:36:09 +0200 Message-ID: To: PRABHURAJ LAXMIKANT Cc: embedded-pv-devel@lists.xenproject.org, Julien Grall Subject: Re: [Embedded-pv-devel] Problem getting console on TI Jacinto 6 X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1790310414489534420==" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --===============1790310414489534420== Content-Type: multipart/alternative; boundary="001a1137cf5adbe2fa055f9999d3" --001a1137cf5adbe2fa055f9999d3 Content-Type: text/plain; charset="UTF-8" Hi all, I'm curious about modules: /(XEN) Checking for initrd in /chosen/ /(XEN) RAM: 0000000080000000 - 00000000dfffffff/ /(XEN) / /(XEN) MODULE[0]: 00000000c2f00000 - 00000000c2f18000 Device Tree / /(XEN) MODULE[1]: 00000000c0000000 - 00000000c2000000 Kernel / /(XEN) MODULE[2]: 00000000c3000000 - 00000000c3010000 XSM / /(XEN) RESVD[0]: 00000000c2f00000 - 00000000c2f18000/ Not sure, whether the same module (module[0]) can store Device tree and be reserved. With the best regards, Iurii On Tue, Dec 5, 2017 at 5:31 PM, Julien Grall wrote: > > > On 26/11/17 13:01, PRABHURAJ LAXMIKANT wrote: > >> Hi all, >> > > Hello, > > We have been working on getting Xen hypervisor up on TI DRA7xx J6 platform. >> We are using 4.4 kernel version (It is supported by TI's Processor SDK). >> >> We are able to get upto kernel boot but having issues getting serial >> console shell login. We are able to switch between dom0 and xen console. >> Also able to dump logs through 'w', 'e', 't', 'h' etc.. from xen console. >> Problem is with getting login shell. >> We are using USB to serial cable which comes along with J6 evm board. >> We have enabled CONFIG_LL_DEBUG and CONFIG_EARLY_PRINTK >> >> Following is the boot logs : >> >> /U-Boot 2014.07-00035-gdcde330-dirty (Nov 17 2017 - 23:38:38)/ >> / >> / >> /CPU : DRA752 ES1.0/ >> /Board: DRA7xx/ >> /I2C: ready/ >> /DRAM: 1.5 GiB/ >> /WARNING: Caches not enabled/ >> /MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1/ >> /Using default environment/ >> / >> / >> /SATA link 0 timeout./ >> /AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode/ >> /flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst / >> /scanning bus for devices.../ >> /Found 0 device(s)./ >> /SCSI: Net: not set. Validating first E-fuse MAC/ >> /cpsw/ >> /Hit any key to stop autoboot: 0 / >> / >> / >> /U-Boot# fatload mmc 0:1 0x80000000 xen-uImage/ >> /reading xen-uImage/ >> /852040 bytes read in 44 ms (18.5 MiB/s)/ >> /U-Boot# fatload mmc 0:1 0xc0000000 zImage/ >> /reading zImage/ >> /3620632 bytes read in 173 ms (20 MiB/s)/ >> /U-Boot# fatload mmc 0:1 0xc2f00000 dra7-evm.dtb/ >> /reading dra7-evm.dtb/ >> /97816 bytes read in 9 ms (10.4 MiB/s)/ >> /U-Boot# bootm 0x80000000 - 0xc2f00000/ >> /## Booting kernel from Legacy Image at 80000000 .../ >> / Image Name: XEN/ >> / Image Type: ARM Linux Kernel Image (uncompressed)/ >> / Data Size: 851976 Bytes = 832 KiB/ >> / Load Address: 80000000/ >> / Entry Point: 80000000/ >> / Verifying Checksum ... OK/ >> /## Flattened Device Tree blob at c2f00000/ >> / Booting using the fdt blob at 0xc2f00000/ >> / Loading Kernel Image ... OK/ >> / Using Device Tree in place at c2f00000, end c2f1ae17/ >> / >> / >> /Starting kernel .../ >> / >> / >> /- UART enabled -/ >> /- CPU 00000000 booting -/ >> /- Xen starting in Hyp mode -/ >> /- Zero BSS -/ >> /- Setting up control registers -/ >> /- Turning on paging -/ >> /- Ready -/ >> /(XEN) Checking for initrd in /chosen/ >> /(XEN) RAM: 0000000080000000 - 00000000dfffffff/ >> /(XEN) / >> /(XEN) MODULE[0]: 00000000c2f00000 - 00000000c2f18000 Device Tree / >> /(XEN) MODULE[1]: 00000000c0000000 - 00000000c2000000 Kernel / >> /(XEN) MODULE[2]: 00000000c3000000 - 00000000c3010000 XSM / >> /(XEN) RESVD[0]: 00000000c2f00000 - 00000000c2f18000/ >> /(XEN) / >> /(XEN) Command line: dom0_mem=512M dom0_rambase_pfn=0x80000 >> console=dtuart dtuart=serial0 dom0_max_vcpus=2 bootscrub=0 >> flask_enforcing=1/ >> /(XEN) parameter "dom0_rambase_pfn" unknown!/ >> /(XEN) parameter "flask_enforcing" unknown!/ >> /(XEN) Placing Xen at 0x00000000dfe00000-0x00000000e0000000/ >> /(XEN) Update BOOTMOD_XEN from 0000000080000000-0000000080115781 => >> 00000000dfe00000-00000000dff15781/ >> /(XEN) Xen heap: 00000000da000000-00000000de000000 (16384 pages)/ >> /(XEN) Dom heap: 376832 pages/ >> /(XEN) Domain heap initialised/ >> /(XEN) Booting using Device Tree/ >> /(XEN) Platform: TI DRA7/ >> /(XEN) Looking for dtuart at "serial0", options ""/ >> / Xen 4.10.0-rc/ >> /(XEN) Xen version 4.10.0-rc (prabhuraj@) (arm-linux-gnueabihf-gcc >> (Ubuntu/Linaro 4.8.4-2ubuntu1~14.04.1) 4.8.4) debug=y Mon Nov 13 18:23:18 >> I7/ >> /(XEN) Latest ChangeSet: Mon Nov 6 11:35:23 2017 +0100 git:92f0d43/ >> /(XEN) Processor: 412fc0f2: "ARM Limited", variant: 0x2, part 0xc0f, rev >> 0x2/ >> /(XEN) 32-bit Execution:/ >> /(XEN) Processor Features: 00001131:00011011/ >> /(XEN) Instruction Sets: AArch32 A32 Thumb Thumb-2 ThumbEE Jazelle/ >> /(XEN) Extensions: GenericTimer Security/ >> /(XEN) Debug Features: 02010555/ >> /(XEN) Auxiliary Features: 00000000/ >> /(XEN) Memory Model Features: 10201105 20000000 01240000 02102211/ >> /(XEN) ISA Features: 02101110 13112111 21232041 11112131 10011142 >> 00000000/ >> /(XEN) /psci method must be smc, but is: "hvc"/ >> /(XEN) Set AuxCoreBoot1 to 00000000dfe0004c (0020004c)/ >> /(XEN) Set AuxCoreBoot0 to 0x20/ >> /(XEN) SMP: Allowing 2 CPUs/ >> /(XEN) Generic Timer IRQ: phys=30 hyp=26 virt=27 Freq: 6144 KHz/ >> /(XEN) GICv2: WARNING: The GICC size is too small: 0x1000 expected 0x2000/ >> /(XEN) GICv2 initialization:/ >> /(XEN) gic_dist_addr=0000000048211000/ >> /(XEN) gic_cpu_addr=0000000048212000/ >> /(XEN) gic_hyp_addr=0000000048214000/ >> /(XEN) gic_vcpu_addr=0000000048216000/ >> /(XEN) gic_maintenance_irq=25/ >> /(XEN) GICv2: 192 lines, 2 cpus, secure (IID 0000043b)./ >> /(XEN) Using scheduler: SMP Credit Scheduler (credit)/ >> /(XEN) Allocated console ring of 16 KiB./ >> /(XEN) VFP implementer 0x41 architecture 4 part 0x30 variant 0xf rev 0x0/ >> /(XEN) Bringing up CPU1/ >> /- CPU 00000001 booting -/ >> /- Xen starting in Hyp mode -/ >> /- Setting up control registers -/ >> /- Turning on paging -/ >> /- Ready -/ >> /(XEN) CPU 1 booted./ >> /(XEN) Brought up 2 CPUs/ >> /(XEN) P2M: 40-bit IPA/ >> /(XEN) P2M: 3 levels with order-1 root, VTCR 0x80003558/ >> /(XEN) I/O virtualisation disabled/ >> /(XEN) build-id: e115fd5c4c7e13be00969c6569ff9325d9b5fd81/ >> /(XEN) alternatives: Patching with alt table 100b9540 -> 100b9570/ >> /(XEN) grant_table.c:1688:IDLEv0 Expanding d0 grant table from 0 to 1 >> frames/ >> /(XEN) *** LOADING DOMAIN 0 ***/ >> /(XEN) Loading kernel from boot module @ 00000000c0000000/ >> /(XEN) Allocating 1:1 mappings totalling 512MB for dom0:/ >> /(XEN) BANK[0] 0x000000a0000000-0x000000c0000000 (512MB)/ >> /(XEN) Grant table range: 0x000000dfe00000-0x000000dfe40000/ >> /(XEN) Loading zImage from 00000000c0000000 to >> 00000000a7c00000-00000000a7f73f18/ >> /(XEN) Allocating PPI 16 for event channel interrupt/ >> /(XEN) Loading dom0 DTB to 0x00000000a8000000-0x00000000a8017a4e/ >> /(XEN) Initial low memory virq threshold set at 0x4000 pages./ >> /(XEN) Std. Loglevel: All/ >> /(XEN) Guest Loglevel: All/ >> /(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch >> input to Xen)/ >> /(XEN) Freed 288kB init memory./ >> /[ 0.000000] Booting Linux on physical CPU 0x0/ >> /[ 0.000000] Initializing cgroup subsys cpuset/ >> /[ 0.000000] Initializing cgroup subsys cpu/ >> /[ 0.000000] Initializing cgroup subsys cpuacct/ >> /[ 0.000000] Linux version 4.4.84-g7e6588b179 (prabhuraj@prabhuraj-E40) >> (gcc version 5.3.1 20160113 (Linaro GCC 5.3-2016.02) ) #7 SMP PREEMP7/ >> /[ 0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), >> cr=30c5387d/ >> /[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction >> cache/ >> /[ 0.000000] Machine model: TI DRA742/ >> /[ 0.000000] bootconsole [earlycon0] enabled/ >> /[ 0.000000] Reserved memory: created CMA memory pool at >> 0x0000000095800000, size 56 MiB/ >> /[ 0.000000] Reserved memory: initialized node ipu2_cma@95800000, >> compatible id shared-dma-pool/ >> /[ 0.000000] Reserved memory: created CMA memory pool at >> 0x0000000099000000, size 64 MiB/ >> /[ 0.000000] Reserved memory: initialized node dsp1_cma@99000000, >> compatible id shared-dma-pool/ >> /[ 0.000000] Reserved memory: created CMA memory pool at >> 0x000000009d000000, size 32 MiB/ >> /[ 0.000000] Reserved memory: initialized node ipu1_cma@9d000000, >> compatible id shared-dma-pool/ >> /[ 0.000000] Reserved memory: created CMA memory pool at >> 0x000000009f000000, size 8 MiB/ >> /[ 0.000000] Reserved memory: initialized node dsp2_cma@9f000000, >> compatible id shared-dma-pool/ >> /[ 0.000000] cma: Reserved 24 MiB at 0x00000000be400000/ >> /[ 0.000000] Forcing write-allocate cache policy for SMP/ >> /[ 0.000000] Memory policy: Data cache writealloc/ >> /(XEN) *** Serial input -> Xen (type 'CTRL-a' three times to switch input >> to DOM0)/ >> /(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch >> input to Xen)/ >> >> >> >> Please provide your valuable support. >> > > If you have access to Xen console, I would recommend to dump dom0 register > (key '0') to know where Linux is "stuck". > > Also what is the command line for Linux? > > Cheers, > > -- > Julien Grall > -- Iurii Mykhalskyi | Lead Software Engineer GlobalLogic P +38.044.492.9695x3664 M +38.096.311.5467 S mad-nemoi www.globallogic.com http://www.globallogic.com/email_disclaimer.txt --001a1137cf5adbe2fa055f9999d3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi all,

I'm curious about modules:<= /div>

/(XEN)= Checking for initrd in /chosen/
/(XEN) RAM: 0000000080000000 - 00000000= dfffffff/
/(XEN) /
/(XEN) MODULE[0]: 00000000c2f00000 - 00000000c2f18= 000 Device Tree /
/(XEN) MODULE[1]: 00000000c0000000 - 00000000c2000000 = Kernel /
/(XEN) MODULE[2]: 00000000c3000000 - 00000000c3010000 XSM /
= /(XEN)=C2=A0 RESVD[0]: 00000000c2f00000 - 00000000c2f18000/

Not sure, whether the= same module (module[0]) can store Device tree and be reserved.

With the best reg= ards,
Iurii

On Tue, De= c 5, 2017 at 5:31 PM, Julien Grall <julien.grall@linaro.org><= /span> wrote:


On 26/11/17 13:01, PRABHURAJ LAXMIKANT wrote:
Hi all,

Hello,

We have been working on getting Xen hypervisor up on TI DRA7xx J6 platform.=
We are using 4.4 kernel version (It is supported by TI's Processor SDK)= .

We are able to get upto kernel boot but having issues getting serial consol= e shell login. We are able to switch between dom0 and xen console. Also abl= e to dump logs through 'w', 'e', 't', 'h' e= tc.. from xen console. Problem is with getting login shell.
We are using USB to serial cable which comes along with J6 evm board.
We have enabled CONFIG_LL_DEBUG and CONFIG_EARLY_PRINTK

Following is the boot logs :

 /U-Boot 2014.07-00035-gdcde330-dirty (Nov 17 2017 - 23:38:38)/
/
/
/CPU=C2=A0 : DRA752 ES1.0/
/Board: DRA7xx/
/I2C:=C2=A0 =C2=A0ready/
/DRAM:=C2=A0 1.5 GiB/
/WARNING: Caches not enabled/
/MMC:=C2=A0 =C2=A0OMAP SD/MMC: 0, OMAP SD/MMC: 1/
/Using default environment/
/
/
/SATA link 0 timeout./
/AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode/
/flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst /
/scanning bus for devices.../
/Found 0 device(s)./
/SCSI:=C2=A0 Net:=C2=A0 =C2=A0<ethaddr> not set. Validating first E-f= use MAC/
/cpsw/
/Hit any key to stop autoboot:=C2=A0 0 /
/
/
/U-Boot# fatload mmc 0:1 0x80000000 xen-uImage/
/reading xen-uImage/
/852040 bytes read in 44 ms (18.5 MiB/s)/
/U-Boot# fatload mmc 0:1 0xc0000000 zImage/
/reading zImage/
/3620632 bytes read in 173 ms (20 MiB/s)/
/U-Boot# fatload mmc 0:1 0xc2f00000 dra7-evm.dtb/
/reading dra7-evm.dtb/
/97816 bytes read in 9 ms (10.4 MiB/s)/
/U-Boot# bootm 0x80000000 - 0xc2f00000/
/## Booting kernel from Legacy Image at 80000000 .../
/=C2=A0 =C2=A0Image Name:=C2=A0 =C2=A0XEN/
/=C2=A0 =C2=A0Image Type:=C2=A0 =C2=A0ARM Linux Kernel Image (uncompressed)= /
/=C2=A0 =C2=A0Data Size:=C2=A0 =C2=A0 851976 Bytes =3D 832 KiB/
/=C2=A0 =C2=A0Load Address: 80000000/
/=C2=A0 =C2=A0Entry Point:=C2=A0 80000000/
/=C2=A0 =C2=A0Verifying Checksum ... OK/
/## Flattened Device Tree blob at c2f00000/
/=C2=A0 =C2=A0Booting using the fdt blob at 0xc2f00000/
/=C2=A0 =C2=A0Loading Kernel Image ... OK/
/=C2=A0 =C2=A0Using Device Tree in place at c2f00000, end c2f1ae17/
/
/
/Starting kernel .../
/
/
/- UART enabled -/
/- CPU 00000000 booting -/
/- Xen starting in Hyp mode -/
/- Zero BSS -/
/- Setting up control registers -/
/- Turning on paging -/
/- Ready -/
/(XEN) Checking for initrd in /chosen/
/(XEN) RAM: 0000000080000000 - 00000000dfffffff/
/(XEN) /
/(XEN) MODULE[0]: 00000000c2f00000 - 00000000c2f18000 Device Tree /
/(XEN) MODULE[1]: 00000000c0000000 - 00000000c2000000 Kernel /
/(XEN) MODULE[2]: 00000000c3000000 - 00000000c3010000 XSM /
/(XEN)=C2=A0 RESVD[0]: 00000000c2f00000 - 00000000c2f18000/
/(XEN) /
/(XEN) Command line: dom0_mem=3D512M dom0_rambase_pfn=3D0x80000 console=3Dd= tuart dtuart=3Dserial0 dom0_max_vcpus=3D2 bootscrub=3D0 flask_enforcing=3D1= /
/(XEN) parameter "dom0_rambase_pfn" unknown!/
/(XEN) parameter "flask_enforcing" unknown!/
/(XEN) Placing Xen at 0x00000000dfe00000-0x00000000e0000000/
/(XEN) Update BOOTMOD_XEN from 0000000080000000-0000000080115781 =3D&g= t; 00000000dfe00000-00000000dff15781/
/(XEN) Xen heap: 00000000da000000-00000000de000000 (16384 pages)/
/(XEN) Dom heap: 376832 pages/
/(XEN) Domain heap initialised/
/(XEN) Booting using Device Tree/
/(XEN) Platform: TI DRA7/
/(XEN) Looking for dtuart at "serial0", options ""/
/=C2=A0Xen 4.10.0-rc/
/(XEN) Xen version 4.10.0-rc (prabhuraj@) (arm-linux-gnueabihf-gcc (Ubuntu/= Linaro 4.8.4-2ubuntu1~14.04.1) 4.8.4) debug=3Dy=C2=A0 Mon Nov 13 18:23:18 I= 7/
/(XEN) Latest ChangeSet: Mon Nov 6 11:35:23 2017 +0100 git:92f0d43/
/(XEN) Processor: 412fc0f2: "ARM Limited", variant: 0x2, part 0xc= 0f, rev 0x2/
/(XEN) 32-bit Execution:/
/(XEN)=C2=A0 =C2=A0Processor Features: 00001131:00011011/
/(XEN)=C2=A0 =C2=A0 =C2=A0Instruction Sets: AArch32 A32 Thumb Thumb-2 Thumb= EE Jazelle/
/(XEN)=C2=A0 =C2=A0 =C2=A0Extensions: GenericTimer Security/
/(XEN)=C2=A0 =C2=A0Debug Features: 02010555/
/(XEN)=C2=A0 =C2=A0Auxiliary Features: 00000000/
/(XEN)=C2=A0 =C2=A0Memory Model Features: 10201105 20000000 01240000 021022= 11/
/(XEN)=C2=A0 ISA Features: 02101110 13112111 21232041 11112131 10011142 000= 00000/
/(XEN) /psci method must be smc, but is: "hvc"/
/(XEN) Set AuxCoreBoot1 to 00000000dfe0004c (0020004c)/
/(XEN) Set AuxCoreBoot0 to 0x20/
/(XEN) SMP: Allowing 2 CPUs/
/(XEN) Generic Timer IRQ: phys=3D30 hyp=3D26 virt=3D27 Freq: 6144 KHz/
/(XEN) GICv2: WARNING: The GICC size is too small: 0x1000 expected 0x2000/<= br> /(XEN) GICv2 initialization:/
/(XEN)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0gic_dist_addr=3D0000000048211000/
/(XEN)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0gic_cpu_addr=3D0000000048212000/
/(XEN)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0gic_hyp_addr=3D0000000048214000/
/(XEN)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0gic_vcpu_addr=3D0000000048216000/
/(XEN)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0gic_maintenance_irq=3D25/
/(XEN) GICv2: 192 lines, 2 cpus, secure (IID 0000043b)./
/(XEN) Using scheduler: SMP Credit Scheduler (credit)/
/(XEN) Allocated console ring of 16 KiB./
/(XEN) VFP implementer 0x41 architecture 4 part 0x30 variant 0xf rev 0x0/ /(XEN) Bringing up CPU1/
/- CPU 00000001 booting -/
/- Xen starting in Hyp mode -/
/- Setting up control registers -/
/- Turning on paging -/
/- Ready -/
/(XEN) CPU 1 booted./
/(XEN) Brought up 2 CPUs/
/(XEN) P2M: 40-bit IPA/
/(XEN) P2M: 3 levels with order-1 root, VTCR 0x80003558/
/(XEN) I/O virtualisation disabled/
/(XEN) build-id: e115fd5c4c7e13be00969c6569ff9325d9b5fd81/
/(XEN) alternatives: Patching with alt table 100b9540 -> 100b9570/
/(XEN) grant_table.c:1688:IDLEv0 Expanding d0 grant table from 0 to 1 frame= s/
/(XEN) *** LOADING DOMAIN 0 ***/
/(XEN) Loading kernel from boot module @ 00000000c0000000/
/(XEN) Allocating 1:1 mappings totalling 512MB for dom0:/
/(XEN) BANK[0] 0x000000a0000000-0x000000c0000000 (512MB)/
/(XEN) Grant table range: 0x000000dfe00000-0x000000dfe40000/
/(XEN) Loading zImage from 00000000c0000000 to 00000000a7c00000-00000000a7f= 73f18/
/(XEN) Allocating PPI 16 for event channel interrupt/
/(XEN) Loading dom0 DTB to 0x00000000a8000000-0x00000000a8017a4e/
/(XEN) Initial low memory virq threshold set at 0x4000 pages./
/(XEN) Std. Loglevel: All/
/(XEN) Guest Loglevel: All/
/(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to sw= itch input to Xen)/
/(XEN) Freed 288kB init memory./
/[=C2=A0 =C2=A0 0.000000] Booting Linux on physical CPU 0x0/
/[=C2=A0 =C2=A0 0.000000] Initializing cgroup subsys cpuset/
/[=C2=A0 =C2=A0 0.000000] Initializing cgroup subsys cpu/
/[=C2=A0 =C2=A0 0.000000] Initializing cgroup subsys cpuacct/
/[=C2=A0 =C2=A0 0.000000] Linux version 4.4.84-g7e6588b179 (prabhuraj@prabh= uraj-E40) (gcc version 5.3.1 20160113 (Linaro GCC 5.3-2016.02) ) #7 SMP PRE= EMP7/
/[=C2=A0 =C2=A0 0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7= ), cr=3D30c5387d/
/[=C2=A0 =C2=A0 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT ins= truction cache/
/[=C2=A0 =C2=A0 0.000000] Machine model: TI DRA742/
/[=C2=A0 =C2=A0 0.000000] bootconsole [earlycon0] enabled/
/[=C2=A0 =C2=A0 0.000000] Reserved memory: created CMA memory pool at 0x000= 0000095800000, size 56 MiB/
/[=C2=A0 =C2=A0 0.000000] Reserved memory: initialized node ipu2_cma@958000= 00, compatible id shared-dma-pool/
/[=C2=A0 =C2=A0 0.000000] Reserved memory: created CMA memory pool at 0x000= 0000099000000, size 64 MiB/
/[=C2=A0 =C2=A0 0.000000] Reserved memory: initialized node dsp1_cma@990000= 00, compatible id shared-dma-pool/
/[=C2=A0 =C2=A0 0.000000] Reserved memory: created CMA memory pool at 0x000= 000009d000000, size 32 MiB/
/[=C2=A0 =C2=A0 0.000000] Reserved memory: initialized node ipu1_cma@9d0000= 00, compatible id shared-dma-pool/
/[=C2=A0 =C2=A0 0.000000] Reserved memory: created CMA memory pool at 0x000= 000009f000000, size 8 MiB/
/[=C2=A0 =C2=A0 0.000000] Reserved memory: initialized node dsp2_cma@9f0000= 00, compatible id shared-dma-pool/
/[=C2=A0 =C2=A0 0.000000] cma: Reserved 24 MiB at 0x00000000be400000/
/[=C2=A0 =C2=A0 0.000000] Forcing write-allocate cache policy for SMP/
/[=C2=A0 =C2=A0 0.000000] Memory policy: Data cache writealloc/
/(XEN) *** Serial input -> Xen (type 'CTRL-a' three times to swi= tch input to DOM0)/
/(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to sw= itch input to Xen)/



Please provide your valuable support.

If you have access to Xen console, I would recommend to dump dom0 register = (key '0') to know where Linux is "stuck".

Also what is the command line for Linux?

Cheers,

--
Julien Grall



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Hi all,

We have been working in Xen 4.1= 0 for quite sometime.
Xen is up, the kernel is crashing at differ= ent functions due to memory corruption.

Have tried= the following experiments:
a. dom0_mem is varied from 512M to 1.= 5G and different behaviours are seen.
(i.e Powerdomains initialis= ation, Hardware module initialisation etc.)

b. Wan= ted to change "reg" values for "memory" node in device = tree, but Xen seems to take only 4 cells and the values don't change ac= cording to the device tree(it is constantly shown as 0x80000000 - 0xdffffff= f). The print info function in bootfdt.c doesnot show any changes.

Explanation for both of the above scenarios would be of gr= eat help for us to move forward.

Expecting your va= luable reply,
Ramya

--001a11453cf857b636055fabdffa-- --===============3944089160581797435== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KRW1iZWRkZWQt cHYtZGV2ZWwgbWFpbGluZyBsaXN0CkVtYmVkZGVkLXB2LWRldmVsQGxpc3RzLnhlbnByb2plY3Qu b3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby9lbWJlZGRl ZC1wdi1kZXZlbA== --===============3944089160581797435==-- From embedded-pv-devel-bounces@lists.xenproject.org Wed Dec 06 13:43:23 2017 Return-path: Envelope-to: archives@lists.xenproject.org Delivery-date: Wed, 06 Dec 2017 13:43:23 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eMZys-0007n4-Ql; Wed, 06 Dec 2017 13:43:22 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eMZys-0007mm-1e for embedded-pv-devel@lists.xenproject.org; Wed, 06 Dec 2017 13:43:22 +0000 X-Inumbo-ID: 5edcc941-da8b-11e7-b4a6-bc764e045a96 Received: from mail-pg0-x234.google.com (unknown [2607:f8b0:400e:c05::234]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 5edcc941-da8b-11e7-b4a6-bc764e045a96; Wed, 06 Dec 2017 14:42:59 +0100 (CET) Received: by mail-pg0-x234.google.com with SMTP id b11so2190059pgu.13 for ; Wed, 06 Dec 2017 05:43:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=ZwmjGE00xGHtSPS17KjdObbRlZqRg7WXbOo/vmDOOko=; b=Q3YzvT6yjiLiJFTjucuNHWZrRvndo+J2nTiZUy1o7FFlsI34C7CyA1lCNRcUFW1k2G tgBOijPqpkpYFKhHx76Zii4zuAAFt1JClpqw5oJQSxt1APTMiObIsPRfLARBcrqo36PU hmhoN/SSAUGRn2DNksW1HNoAfhLZZSGEhKZTYNMVrod6Bj4pGNEqSI6sQvdnex1LSlqz viD6L3VNf6sEH0aUOXoci8CMYyY3WEdWbj69O2kCZBAimx4dLL6EnU0Fdl2ybv1UuP/L ux5LGFBxnvxceVj9oX7emKkLKjAWLYdzP3s9KFwck13av3AlDqZa1H34AXJ6GApSBajD qANA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=ZwmjGE00xGHtSPS17KjdObbRlZqRg7WXbOo/vmDOOko=; b=EVAEr9J9gPbu7DYvapL3yYoOBeY7oQoJ24ST/ipt52zUnodCswd0JB2rQZsmcWeSh4 XcAEvDjnnTxgbmsElKj/5XmQL/pZpsAeNoDMKOd2rbU2WjYBSEEA2Yo8sQe9QPJz6Fnj H1LCOx5FfjfXnLduL0TTeVV/smmfVFx05cYXl6+RCJqH5ICEiyscdc2M3jo+GX80MyhV LZXyHv3MIceM8N1q3N4nPfFE0Fm4FSmdJl5dq1gjG50ic1taEM4dhxEOx+Vhtd3EkV7j raenYY80dISByReOWGNWTb6mmT3BcfAk7ZxorsAfXFGKeAvfAirX8FrNjG5gX/savszW Gy4w== X-Gm-Message-State: AJaThX5UstVBXrXYJjexGJo5Ap9SDwJJHG3XdETULsCBDUjyB/armPvS 1f0yAzadMQQVYgU5VOl6X0Lm0y8Wb/sqLXX+6TI= X-Google-Smtp-Source: AGs4zMb3Q7rBkxdm5kL7OvNNYqZzNLiTAsnMizIWQSA9qWIuFI7/MtD0/w28cmPJzKrdOIMF49EjPFgyKWOlic3HTdU= X-Received: by 10.99.102.196 with SMTP id a187mr21339867pgc.346.1512567799604; Wed, 06 Dec 2017 05:43:19 -0800 (PST) MIME-Version: 1.0 Received: by 10.100.177.140 with HTTP; Wed, 6 Dec 2017 05:43:19 -0800 (PST) In-Reply-To: References: From: Andrii Anisov Date: Wed, 6 Dec 2017 15:43:19 +0200 Message-ID: To: RAMYA RAVICHANDRAN Cc: embedded-pv-devel@lists.xenproject.org Subject: Re: [Embedded-pv-devel] Xen RAM entry X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============6639912456198966574==" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --===============6639912456198966574== Content-Type: multipart/alternative; boundary="94eb2c11b92a64ee59055fac22b3" --94eb2c11b92a64ee59055fac22b3 Content-Type: text/plain; charset="UTF-8" Dear Ramya, First, please specify the board you are using to achieve these results? b. Wanted to change "reg" values for "memory" node in device tree, but Xen > seems to take only 4 cells and the values don't change according to the > device tree(it is constantly shown as 0x80000000 - 0xdfffffff). The print > info function in bootfdt.c doesnot show any changes > Make sure you have your u-boot built with `# CONFIG_ARCH_FIXUP_FDT is not set` . So that it does not mangle memory nodes in your fdt right before jumping to XEN. Sincerely, Andrii Anisov. --94eb2c11b92a64ee59055fac22b3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Dear Ramya,

First, please specify the b= oard you are using to achieve these results?

b. Wanted to change "reg"= values for "memory" node in device tree, but Xen seems to take o= nly 4 cells and the values don't change according to the device tree(it= is constantly shown as 0x80000000 - 0xdfffffff). The print info function i= n bootfdt.c doesnot show any changes
Make sure you hav= e your u-boot built with `# CONFIG_ARCH_FIXUP_FDT is not set` . So that it = does not mangle memory nodes in your fdt right before jumping to XEN.
=

Sincerely,
Andrii Anisov.


--94eb2c11b92a64ee59055fac22b3-- --===============6639912456198966574== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KRW1iZWRkZWQt cHYtZGV2ZWwgbWFpbGluZyBsaXN0CkVtYmVkZGVkLXB2LWRldmVsQGxpc3RzLnhlbnByb2plY3Qu b3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby9lbWJlZGRl ZC1wdi1kZXZlbA== --===============6639912456198966574==-- From embedded-pv-devel-bounces@lists.xenproject.org Wed Dec 06 15:04:12 2017 Return-path: Envelope-to: archives@lists.xenproject.org Delivery-date: Wed, 06 Dec 2017 15:04:12 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eMbF6-0005xR-Pj; Wed, 06 Dec 2017 15:04:12 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eMbF5-0005xG-JY for embedded-pv-devel@lists.xenproject.org; Wed, 06 Dec 2017 15:04:11 +0000 X-Inumbo-ID: a8c9662e-da96-11e7-b4a6-bc764e045a96 Received: from mail-wr0-x234.google.com (unknown [2a00:1450:400c:c0c::234]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id a8c9662e-da96-11e7-b4a6-bc764e045a96; Wed, 06 Dec 2017 16:03:47 +0100 (CET) Received: by mail-wr0-x234.google.com with SMTP id h1so4212715wre.12 for ; Wed, 06 Dec 2017 07:04:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=blackpeppertech-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=aBniIH0YDFm0xkn7+PU1nxuPmBq4Gng5IYFB1ZkbPFg=; b=Etwss2WiRsPV/vYHs16Zuh1d8UomhdljH02ao3BGUEF3YHZqgp7g9NKbbrTXgtQXJT Uw7kvC09wHHoYe7wdDDqXYalR3nnujcHQICIQPGBQR770NG9/TsrmGa1p6qeWupDvTLN oLv/4O9ae9jjsHPqmyB5t9eHXrQsivk4GW/F7fGDVuBcr5gAxyknF9vKBOLBtMsI5JW0 +uPKgA3IrnBhw0shmTAqgPsYRZiBiZK2ouTg/4KLj0z7YdK+zV332IgUMONnV10ZvvHi cjf5bbO/o2vLMqGivh8wvlIiCe28ojEoxDngYzzjIA3fyyWL4kJmp/AKKHvgOqaPgxSq NYnA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=aBniIH0YDFm0xkn7+PU1nxuPmBq4Gng5IYFB1ZkbPFg=; b=gODQEIJBa78dBgh6l3j8jEKCoY2zifydQRsQiLRQZiXbIZX+5S0R5mYa2u9wvcjAvZ YWsc/4peZjUzccxGIvV4b401It+7O3NyxOD1qGiPV6DwQ7yrV8rbvRM4Aur6D5W0Gaw8 N9Pw5KR2n8vM2zRnODjU1thtLrIhYi4aS1TvdFycYAOBzmjxAAr2847aqTSJxHADbMDR wsKB96YhfzU2uclsKWm81GhHc7B0GLzqd3oVj6TJLMO/TlIcf+Fz1OhhyJfPCkz6LkZr z2mVRRF+UoxId9Y77nas0mnBB2LUP0sfs5WBb9/ZEAS1MHhUHLhjML0nYOjh3hIRbKqf LTFg== X-Gm-Message-State: AJaThX6kKNUlSziqN4/lTDXwfxsyhmJMEU/dH7XjklsxzFkTBs2LaLqj +YDqvrkDFrjWqC2FNlVTyfY768fgzzbLuUlrujBfXQ== X-Google-Smtp-Source: AGs4zMah2Fdq+LsryQdM+0Sbs4Z0XyLg+gG2KXKpBju3BePCnpvtr8a3LHOJHkQ0qULtcEsZyIgZNCsPvH0z48A9zrc= X-Received: by 10.223.172.118 with SMTP id v109mr19829849wrc.229.1512572648147; Wed, 06 Dec 2017 07:04:08 -0800 (PST) MIME-Version: 1.0 Received: by 10.223.198.6 with HTTP; Wed, 6 Dec 2017 07:04:07 -0800 (PST) In-Reply-To: References: From: RAMYA RAVICHANDRAN Date: Wed, 6 Dec 2017 20:34:07 +0530 Message-ID: To: Andrii Anisov Content-Type: multipart/mixed; boundary="f403045cf5ee643843055fad439a" Cc: embedded-pv-devel@lists.xenproject.org Subject: Re: [Embedded-pv-devel] Xen RAM entry X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --f403045cf5ee643843055fad439a Content-Type: multipart/alternative; boundary="f403045cf5ee64383f055fad4398" --f403045cf5ee64383f055fad4398 Content-Type: text/plain; charset="UTF-8" Thanks Andrii for your mail. It would be great if you could throw light on how Xen memory maps the Dom0 kernel, dtb. Please find the overview of our work below. We have been working on getting Xen hypervisor up on TI DRA7xx J6 platform. We are using 4.4 kernel version (It is supported by TI's Processor SDK). We are able to get upto kernel boot but having issues getting serial console shell login. We are able to switch between dom0 and xen console. Also able to dump logs through 'w', 'e', 't', 'h' etc.. from xen console. Right now its getting crashed at powerdomain init. Attached the log for your reference. Also sharing the dts file with you for reference. We have modified the dom0_mem size from 512MB to 1.5GB, we are observing hang/crash at different functions. (ie powerdomain/ hwmod_init etc).. Awaiting your valuable guidance, Ramya On Wed, Dec 6, 2017 at 7:13 PM, Andrii Anisov wrote: > Dear Ramya, > > First, please specify the board you are using to achieve these results? > > b. Wanted to change "reg" values for "memory" node in device tree, but Xen >> seems to take only 4 cells and the values don't change according to the >> device tree(it is constantly shown as 0x80000000 - 0xdfffffff). The print >> info function in bootfdt.c doesnot show any changes >> > Make sure you have your u-boot built with `# CONFIG_ARCH_FIXUP_FDT is not > set` . So that it does not mangle memory nodes in your fdt right before > jumping to XEN. > > Sincerely, > Andrii Anisov. > > > --f403045cf5ee64383f055fad4398 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Thanks Andrii for your mail.
It would be great if you = could throw light on how Xen memory maps the Dom0 kernel, dtb.
= =C2=A0
Please find the overview of our work below.

<= span style=3D"color:rgb(38,50,56);font-size:13px">We have been working on g= etting Xen hypervisor up on TI DRA7xx J6 platform.
We are using 4.4 kernel version (It is supported by TI&= #39;s Processor SDK).

We are able to get upt= o kernel boot but having issues getting serial console shell login.=C2=A0
We are a= ble to switch between dom0 and xen console. Also able to dump logs through = 'w', 'e', 't', 'h' etc.. from xen console.= =C2=A0
Right now its getting crashed at powerdomain init. Attached the log for= your reference.
Also sharing t= he dts file with you for reference.=C2=A0
We have modified the dom0_mem size from = 512MB to 1.5GB, we are observing hang/crash at different functions. (ie pow= erdomain/ hwmod_init etc)..


Awaiting your valuable guidance,
Ramya

On Wed, D= ec 6, 2017 at 7:13 PM, Andrii Anisov <andrii.anisov@gmail.com>= ; wrote:
Dear Ram= ya,

First, please specify the board you are using to ach= ieve these results?

b. Wanted to change "reg" values= for "memory" node in device tree, but Xen seems to take only 4 c= ells and the values don't change according to the device tree(it is con= stantly shown as 0x80000000 - 0xdfffffff). The print info function in bootf= dt.c doesnot show any changes
Make sure you hav= e your u-boot built with `# CONFIG_ARCH_FIXUP_FDT is not set` . So that it = does not mangle memory nodes in your fdt right before jumping to XEN.
=

Sincerely,
Andrii Anisov.



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-0800 (PST) MIME-Version: 1.0 Received: by 10.100.177.140 with HTTP; Wed, 6 Dec 2017 08:26:00 -0800 (PST) In-Reply-To: References: From: Andrii Anisov Date: Wed, 6 Dec 2017 18:26:00 +0200 Message-ID: To: RAMYA RAVICHANDRAN Cc: embedded-pv-devel@lists.xenproject.org Subject: Re: [Embedded-pv-devel] Xen RAM entry X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============5111859651681658833==" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --===============5111859651681658833== Content-Type: multipart/alternative; boundary="94eb2c1252a637e0e7055fae68fa" --94eb2c1252a637e0e7055fae68fa Content-Type: text/plain; charset="UTF-8" Hello Ramya, We have been working on getting Xen hypervisor up on TI DRA7xx J6 platform. Ouch, I remembered, Jacinto6 for sure. I see you managed you issues with XEN hang after "Turning paging on". What was that? Also sharing the dts file with you for reference. No dts is attached though. We have modified the dom0_mem size from 512MB to 1.5GB, we are observing > hang/crash at different functions. (ie powerdomain/ hwmod_init etc). Recalling my experience with J6 I guess not all MMIO registers accessed by kernel during PRCM setup are described in dts. So XEN traps those accesses from Dom0 and bounce back with data abort. As a quick hack you should add those registers to your dts. I.e. to the dummy device node with reg property contained all required registers. Adding a dra7xx_specific_mapping() function to xen/arch/arm/platforms/omap5.c similar to omap5_specific_mapping() would be more clean way. You should build your XEN with CONFIG_DEBUG enabled, so you will see print from do_trap_data_abort_guest() right before inject_dabt_exception() call. That print will show what register mappings are missed. BTW, IIRC, J6 platform code in kernel had smc call in its depths. SMC is not allowed under xen, so you should cut it out as well, otherwise XEN will crash the domain. Sincerely, Andrii Anisov. --94eb2c1252a637e0e7055fae68fa Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Ramya,

We have been working on getting Xen= hypervisor up on TI DRA7xx J6 platform.
Ouch, I re= membered, Jacinto6 for sure.
I see you managed you issues with XE= N hang after "Turning paging on". What was that?

Also sharing the dts file with you for refere= nce.=C2=A0
No dts is attached though.=C2=A0

We have modified the dom0_mem size = from 512MB to 1.5GB, we are observing hang/crash at different functions. (i= e powerdomain/ hwmod_init etc).
Recalling my experi= ence with J6 I guess not all MMIO registers accessed by kernel during PRCM = setup are described in dts. So XEN traps those accesses from Dom0 and bounc= e back with data abort. As a quick hack you should add those registers to y= our dts. I.e. to the dummy device node with reg property contained all requ= ired registers. Adding a dra7xx_specific_mapping() function to xen/arch/arm= /platforms/omap5.c similar to=C2=A0omap5_specific_mapping() would be more c= lean way.
You should build your XEN with=C2=A0CONFIG_DEBUG enable= d, so you will see print from=C2=A0do_trap_data_abort_guest() right before= =C2=A0inject_dabt_exception() call. That print will show what register mapp= ings are missed.

BTW, IIRC, J6 platform code i= n kernel had smc call in its depths. SMC is not allowed under xen, so you s= hould cut it out as well, otherwise XEN will crash the domain.

Sincerely,
Andrii Anisov.

--94eb2c1252a637e0e7055fae68fa-- --===============5111859651681658833== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KRW1iZWRkZWQt cHYtZGV2ZWwgbWFpbGluZyBsaXN0CkVtYmVkZGVkLXB2LWRldmVsQGxpc3RzLnhlbnByb2plY3Qu b3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby9lbWJlZGRl ZC1wdi1kZXZlbA== --===============5111859651681658833==-- From embedded-pv-devel-bounces@lists.xenproject.org Wed Dec 06 16:49:38 2017 Return-path: Envelope-to: archives@lists.xenproject.org Delivery-date: Wed, 06 Dec 2017 16:49:38 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eMct8-0001YM-82; Wed, 06 Dec 2017 16:49:38 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eMct6-0001YD-U2 for embedded-pv-devel@lists.xenproject.org; Wed, 06 Dec 2017 16:49:37 +0000 X-Inumbo-ID: 631c89d3-daa5-11e7-b4a6-bc764e045a96 Received: from mail-wm0-x22d.google.com (unknown [2a00:1450:400c:c09::22d]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 631c89d3-daa5-11e7-b4a6-bc764e045a96; Wed, 06 Dec 2017 17:49:13 +0100 (CET) Received: by mail-wm0-x22d.google.com with SMTP id f206so8202006wmf.5 for ; Wed, 06 Dec 2017 08:49:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=blackpeppertech-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=gltjkoEoP3D1CopQNDIBC4N/d4fXb78hgulRKY9OlFI=; b=f6a5170DugACJ6l+6f/UqlHOJObTR3H1dyZeY5f3Gc4zbr0nlEzPYIB0g1xd26giV/ Va+wzXTppNjNz1qLcvRwkOQaXQNwiMFBwYBnz8rNzn//UFab7x71YGyL4BAf6Bqx0ymX nJEnY8OtSdpqHx2valzNtxDFRdcVQ6sGquNHCCy9sxJ29xenfP6NijK1/0vEtlGUpDp1 F2c+O/5I6TsfepJ4ULexAcarpz53mf70AdAmyD9b2c9NkhHdMWvLGS8Dmr/P/qOW+ho5 iTWa6lkgH946CRr7SYtYF48NKu5gi22kNIIh/8oQRCguO3IFvtJ9MSOs8j1dP8QxUHXg eUfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=gltjkoEoP3D1CopQNDIBC4N/d4fXb78hgulRKY9OlFI=; b=gBsAZUpIawlefkbpAsKPxT9vDuxkLAcAu4xPiBEBgOTpB3e3mWKXH6BpiUl1vnbSxz wkeQFJTWPKhIsXmtD6bb9Ggwz/HrUMCavXRVcLn+EaI/fBgnkyY3TzS00HEO58sS1Oo/ tMr5MN6n2nY0n6IN9PDKOitzfWt7A/eDU213CLR9zSeIW85To24uuf1kXnjvdkvl5n6m 7nHrl9Lb2KHe2Y1IzWZ1OltnH04Oc0qqmxp3d3RKEQY0TFmXkx8lfODmbbNgSVBy+Pa+ ao0nQbbZtPXjrpI165O0ngVMpann2O5iqIolzwRG3RGxOlj2t59udGhUzchpER8Yw46m yQZg== X-Gm-Message-State: AKGB3mJC6wf4N9aIZJSMIsa9gcsfPHTJcpjj+I6saDAxD82j9V75MVwE WiR3N9SL38UKA6TeUBnvUMiIuFrpCguLrDD7NztUpA== X-Google-Smtp-Source: AGs4zMbtgB1PD8pX4i7Dp+r3riQUxCwOUSqg4QxRz7zqcaz6FqQZJtv8cALuk4V6ofsmHZ8TaksfVU2NolDHk1z7KC8= X-Received: by 10.28.125.11 with SMTP id y11mr9090042wmc.115.1512578973921; Wed, 06 Dec 2017 08:49:33 -0800 (PST) MIME-Version: 1.0 Received: by 10.223.198.6 with HTTP; Wed, 6 Dec 2017 08:49:32 -0800 (PST) In-Reply-To: References: From: RAMYA RAVICHANDRAN Date: Wed, 6 Dec 2017 22:19:32 +0530 Message-ID: To: Andrii Anisov Content-Type: multipart/mixed; boundary="001a1141922c6fba55055faebccd" Cc: embedded-pv-devel@lists.xenproject.org Subject: Re: [Embedded-pv-devel] Xen RAM entry X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --001a1141922c6fba55055faebccd Content-Type: multipart/alternative; boundary="001a1141922c6fba50055faebccb" --001a1141922c6fba50055faebccb Content-Type: text/plain; charset="UTF-8" Hello Andrii, Thanks a ton for sharing your wonderful experience. Have attached the dts file for your reference. Turning Paging on error was resolved by modifying files for MLO. We have ported kernel 4.4 to accomodate Xen. We will do the suggested changes and let you know. Thanking you a lot, Ramya On Wed, Dec 6, 2017 at 9:56 PM, Andrii Anisov wrote: > Hello Ramya, > > We have been working on getting Xen hypervisor up on TI DRA7xx J6 platform. > > Ouch, I remembered, Jacinto6 for sure. > I see you managed you issues with XEN hang after "Turning paging on". What > was that? > > Also sharing the dts file with you for reference. > > No dts is attached though. > > We have modified the dom0_mem size from 512MB to 1.5GB, we are observing >> hang/crash at different functions. (ie powerdomain/ hwmod_init etc). > > Recalling my experience with J6 I guess not all MMIO registers accessed by > kernel during PRCM setup are described in dts. So XEN traps those accesses > from Dom0 and bounce back with data abort. As a quick hack you should add > those registers to your dts. I.e. to the dummy device node with reg > property contained all required registers. Adding a > dra7xx_specific_mapping() function to xen/arch/arm/platforms/omap5.c > similar to omap5_specific_mapping() would be more clean way. > You should build your XEN with CONFIG_DEBUG enabled, so you will see print > from do_trap_data_abort_guest() right before inject_dabt_exception() > call. That print will show what register mappings are missed. > > BTW, IIRC, J6 platform code in kernel had smc call in its depths. SMC is > not allowed under xen, so you should cut it out as well, otherwise XEN will > crash the domain. > > Sincerely, > Andrii Anisov. > > --001a1141922c6fba50055faebccb Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Andrii,

Thanks a ton for sharing = your wonderful experience.
Have attached the dts file for your re= ference.

Turning Paging on error was resolved by m= odifying files for MLO.
We have ported kernel 4.4 to accomodate X= en.

We will do the suggested changes and let you k= now.

Thanking you a lot,
Ramya


= On Wed, Dec 6, 2017 at 9:56 PM, Andrii Anisov <andrii.anisov@gmail.c= om> wrote:
Hello Ramya,

We have been working on getting Xe= n hypervisor up on TI DRA7xx J6 platform.
Ou= ch, I remembered, Jacinto6 for sure.
I see you managed you issues= with XEN hang after "Turning paging on". What was that?

Also sharing the dts= file with you for reference.=C2=A0
No dts i= s attached though.=C2=A0

We have modified the dom0_mem size from 512MB to 1.5GB, we are= observing hang/crash at different functions. (ie powerdomain/ hwmod_init e= tc).
Recalling my experience with J6 I guess= not all MMIO registers accessed by kernel during PRCM setup are described = in dts. So XEN traps those accesses from Dom0 and bounce back with data abo= rt. As a quick hack you should add those registers to your dts. I.e. to the= dummy device node with reg property contained all required registers. Addi= ng a dra7xx_specific_mapping() function to xen/arch/arm/platforms/omap5.c s= imilar to=C2=A0omap5_specific_mapping() would be more clean way.
= You should build your XEN with=C2=A0CONFIG_DEBUG enabled, so you will see p= rint from=C2=A0do_trap_data_abort_guest() right before=C2=A0inject_dab= t_exception() call. That print will show what register mappings are missed.=

BTW, IIRC, J6 platform code in kernel had smc= call in its depths. SMC is not allowed under xen, so you should cut it out= as well, otherwise XEN will crash the domain.

Sincerely,
Andrii Anisov.


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d=blackpeppertech-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=3G4/8ML9ASr01KDmhNZ8mgfNiQvSdTR9UtdRwmdoeQI=; b=UpQPqAP+098ZdcVrMY5voljb3bBUIUeiXmTZDoMCItVJSm9zyvgYxfh1la4MA1+y5a FrWzccm5Ok8Iu0Hs2lUibtHXhoDNYZ8cAKhaMWpOUhV8nNlE22gMyX7MrGtCJ4+xnTAU Svnn+yitNJY7OJdo6ZE2hsTEpw1o+Q+3OeNqyByaJ4lH0TAoWeFNRLf61ZLCdXvOx5HP k4BljbBWSlOVJiYFatzwwGoXVru+eGBe0D1I+svbbNZtt6purtxeS8/X+F6IW4flrcuq lBmdkfhr9Bp1V4a6BaCHK7sq4kWhQkpITOBVK+SH6+1b5Ws4b1jrdhZexIx+BQeE3+Yo 8JAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=3G4/8ML9ASr01KDmhNZ8mgfNiQvSdTR9UtdRwmdoeQI=; b=HeZC7Yi3RmHMH6DTDgVXoGYGCxp8YjjkKftBcaHBqfma7aaxGqHNlqraSAPqoWuDy6 Zbc5z0qfB4e0TfuwQ1qcH2I3ZCFlzWdpICIv58yJALq71f4a2Y4kUMmOglVCofZ5g0ew kaQ1TsRJ3BiocC1YkaJIHgpw9hpz/7bmIttnLj5u+H2wuNi+eg5jOkD6SYhMsnSeQb5z 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boundary="===============2376927700597952994==" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --===============2376927700597952994== Content-Type: multipart/alternative; boundary="089e0820e314c8c831055fbcaea3" --089e0820e314c8c831055fbcaea3 Content-Type: text/plain; charset="UTF-8" Hello Andrii, The suggestions worked for Data Abort crash.We are able to move forward. The following is the crash happening due to timers. Please let us know your valuabe inputs/experience. *Log:* 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] Build-time adjustment of leaf fanout to 32. [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] of_irq_init: children remain, but no parents [ 0.000000] Function:omap2_gp_clockevent_init at 366 [ 0.000000] irq: no irq domain found for /ocp/crossbar@4a002a48 ! [ 0.000000] Function:omap2_gp_clockevent_init at 370 [ 0.000000] Function:omap2_gp_clockevent_init at 372 [ 0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 0.000000] pgd = c0003000 [ 0.000000] [00000000] *pgd=80000080004003, *pmd=00000000 [ 0.000000] Internal error: Oops: a06 [#1] PREEMPT SMP ARM [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.84-g7e6588b179 #22 [ 0.000000] Hardware name: Generic DRA74X (Flattened Device Tree) [ 0.000000] task: c0969c38 ti: c0964000 task.ti: c0964000 [ 0.000000] PC is at omap2_gp_clockevent_init.constprop.3+0xa4/0x110 [ 0.000000] LR is at setup_irq+0x48/0x94 [ 0.000000] pc : [] lr : [] psr: 600000d3 [ 0.000000] sp : c0965f38 ip : c0965f18 fp : c0965f64 [ 0.000000] r10: c0951e2c r9 : c09b7000 r8 : 00000001 [ 0.000000] r7 : c06abf94 r6 : c0845e40 r5 : c096bb80 r4 : c09b7d94 [ 0.000000] r3 : 00000002 r2 : 00000000 r1 : ef006000 r0 : ffffffda [ 0.000000] Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel [ 0.000000] Control: 30c5387d Table: 80003000 DAC: fffffffd [ 0.000000] Process swapper/0 (pid: 0, stack limit = 0xc0964210) [ 0.000000] Stack: (0xc0965f38 to 0xc0966000) [ 0.000000] 5f20: 00000001 00000000 [ 0.000000] 5f40: c0965f64 00000000 c09b7000 ef649f00 00000000 ffffffff c0965f74 c0965f68 [ 0.000000] 5f60: c0919d1c c0919c00 c0965f8c c0965f78 c0919db8 c0919d10 00000000 c09b7000 [ 0.000000] 5f80: c0965f9c c0965f90 c0911fbc c0919db4 c0965ff4 c0965fa0 c090ec44 c0911fa0 [ 0.000000] 5fa0: ffffffff ffffffff 00000000 c090e6e8 ffffffff 00000000 00000000 c0966400 [ 0.000000] 5fc0: 00000000 c0951e2c 00000000 c09b7ad4 c0966488 c0951e28 c096af10 80007000 [ 0.000000] 5fe0: 412fc0f2 00000000 00000000 c0965ff8 80008090 c090e994 00000000 00000000 [ 0.000000] Backtrace: [ 0.000000] [] (omap2_gp_clockevent_init.constprop.3) from [] (omap4_sync32k_timer_init+0x18/0x44) [ 0.000000] r8:ffffffff r7:00000000 r6:ef649f00 r5:c09b7000 r4:00000000 [ 0.000000] [] (omap4_sync32k_timer_init) from [] (omap5_realtime_timer_init+0x10/0x190) [ 0.000000] [] (omap5_realtime_timer_init) from [] (time_init+0x28/0x38) [ 0.000000] r5:c09b7000 r4:00000000 [ 0.000000] [] (time_init) from [] (start_kernel+0x2bc/0x40c) [ 0.000000] [] (start_kernel) from [<80008090>] (0x80008090) [ 0.000000] r10:00000000 r9:412fc0f2 r8:80007000 r7:c096af10 r6:c0951e28 r5:c0966488 [ 0.000000] r4:c09b7ad4 [ 0.000000] Code: e5854184 ebdda6a5 e5942014 e3a03002 (e5823000) [ 0.000000] ---[ end trace cb88537fdc8fa200 ]--- [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! [ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! Thanks, Ramya On Wed, Dec 6, 2017 at 10:19 PM, RAMYA RAVICHANDRAN < ramya.r@blackpeppertech.com> wrote: > Hello Andrii, > > Thanks a ton for sharing your wonderful experience. > Have attached the dts file for your reference. > > Turning Paging on error was resolved by modifying files for MLO. > We have ported kernel 4.4 to accomodate Xen. > > We will do the suggested changes and let you know. > > Thanking you a lot, > Ramya > > > On Wed, Dec 6, 2017 at 9:56 PM, Andrii Anisov > wrote: > >> Hello Ramya, >> >> We have been working on getting Xen hypervisor up on TI DRA7xx J6 >>> platform. >> >> Ouch, I remembered, Jacinto6 for sure. >> I see you managed you issues with XEN hang after "Turning paging on". >> What was that? >> >> Also sharing the dts file with you for reference. >> >> No dts is attached though. >> >> We have modified the dom0_mem size from 512MB to 1.5GB, we are observing >>> hang/crash at different functions. (ie powerdomain/ hwmod_init etc). >> >> Recalling my experience with J6 I guess not all MMIO registers accessed >> by kernel during PRCM setup are described in dts. So XEN traps those >> accesses from Dom0 and bounce back with data abort. As a quick hack you >> should add those registers to your dts. I.e. to the dummy device node with >> reg property contained all required registers. Adding a >> dra7xx_specific_mapping() function to xen/arch/arm/platforms/omap5.c >> similar to omap5_specific_mapping() would be more clean way. >> You should build your XEN with CONFIG_DEBUG enabled, so you will see >> print from do_trap_data_abort_guest() right >> before inject_dabt_exception() call. That print will show what register >> mappings are missed. >> >> BTW, IIRC, J6 platform code in kernel had smc call in its depths. SMC is >> not allowed under xen, so you should cut it out as well, otherwise XEN will >> crash the domain. >> >> Sincerely, >> Andrii Anisov. >> >> > --089e0820e314c8c831055fbcaea3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Andrii,

The suggestions = worked for Data Abort crash.We are able to move forward.
The follo= wing is the crash happening due to timers.

Please let us know your v= aluabe inputs/experience.

Log:
=C2=A00.000000] SLUB: HWalign=3D64, Order=3D0-3, MinObjects=3D0, CPU= s=3D2, Nodes=3D1
[=C2=A0 =C2=A0 0.000000] Preemptible hierarchica= l RCU implementation.
[=C2=A0 =C2=A0 0.000000]=C2=A0 Build-time a= djustment of leaf fanout to 32.
[=C2=A0 =C2=A0 0.000000] NR_IRQS:= 16 nr_irqs:16 16
[=C2=A0 =C2=A0 0.000000] of_irq_init: children r= emain, but no parents
[=C2=A0 =C2=A0 0.000000] Function:omap2_gp_= clockevent_init at 366=C2=A0
[=C2=A0 =C2=A0 0.000000] irq: n= o irq domain found for /ocp/crossbar@4a002a48 !
[=C2=A0 =C2=A0 0.= 000000] Function:omap2_gp_clockevent_init at 370=C2=A0
[=C2= =A0 =C2=A0 0.000000] Function:omap2_gp_clockevent_init at 372=C2=A0
[=C2=A0 =C2=A0 0.000000] Unable to handle kernel NULL pointer deref= erence at virtual address 00000000
[=C2=A0 =C2=A0 0.000000] pgd = =3D c0003000
[=C2=A0 =C2=A0 0.000000] [00000000] *pgd=3D800000800= 04003, *pmd=3D00000000
[=C2=A0 =C2=A0 0.000000] Internal error: O= ops: a06 [#1] PREEMPT SMP ARM
[=C2=A0 =C2=A0 0.000000] Modules li= nked in:
[=C2=A0 =C2=A0 0.000000] CPU: 0 PID: 0 Comm: swapper/0 N= ot tainted 4.4.84-g7e6588b179 #22
[=C2=A0 =C2=A0 0.000000] Hardwa= re name: Generic DRA74X (Flattened Device Tree)
[=C2=A0 =C2=A0 0.= 000000] task: c0969c38 ti: c0964000 task.ti: c0964000
[=C2=A0 =C2= =A0 0.000000] PC is at omap2_gp_clockevent_init.constprop.3+0xa4/0x110=
[=C2=A0 =C2=A0 0.000000] LR is at setup_irq+0x48/0x94
= [=C2=A0 =C2=A0 0.000000] pc : [<c0919c98>]=C2=A0 =C2=A0 lr : [<c00= 83770>]=C2=A0 =C2=A0 psr: 600000d3
[=C2=A0 =C2=A0 0.000000] sp= : c0965f38=C2=A0 ip : c0965f18=C2=A0 fp : c0965f64
[=C2=A0 =C2= =A0 0.000000] r10: c0951e2c=C2=A0 r9 : c09b7000=C2=A0 r8 : 00000001
[=C2=A0 =C2=A0 0.000000] r7 : c06abf94=C2=A0 r6 : c0845e40=C2=A0 r5 : c0= 96bb80=C2=A0 r4 : c09b7d94
[=C2=A0 =C2=A0 0.000000] r3 : 00000002= =C2=A0 r2 : 00000000=C2=A0 r1 : ef006000=C2=A0 r0 : ffffffda
[=C2= =A0 =C2=A0 0.000000] Flags: nZCv=C2=A0 IRQs off=C2=A0 FIQs off=C2=A0 Mode S= VC_32=C2=A0 ISA ARM=C2=A0 Segment kernel
[=C2=A0 =C2=A0 0.000000]= Control: 30c5387d=C2=A0 Table: 80003000=C2=A0 DAC: fffffffd
[=C2= =A0 =C2=A0 0.000000] Process swapper/0 (pid: 0, stack limit =3D 0xc0964210)=
[=C2=A0 =C2=A0 0.000000] Stack: (0xc0965f38 to 0xc0966000)
=
[=C2=A0 =C2=A0 0.000000] 5f20:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A000000001 00000000
[=C2=A0 =C2=A0 0.000000] 5f40: c0965f= 64 00000000 c09b7000 ef649f00 00000000 ffffffff c0965f74 c0965f68
[=C2=A0 =C2=A0 0.000000] 5f60: c0919d1c c0919c00 c0965f8c c0965f78 c0919db= 8 c0919d10 00000000 c09b7000
[=C2=A0 =C2=A0 0.000000] 5f80: c0965= f9c c0965f90 c0911fbc c0919db4 c0965ff4 c0965fa0 c090ec44 c0911fa0
[=C2=A0 =C2=A0 0.000000] 5fa0: ffffffff ffffffff 00000000 c090e6e8 ffffff= ff 00000000 00000000 c0966400
[=C2=A0 =C2=A0 0.000000] 5fc0: 0000= 0000 c0951e2c 00000000 c09b7ad4 c0966488 c0951e28 c096af10 80007000
[=C2=A0 =C2=A0 0.000000] 5fe0: 412fc0f2 00000000 00000000 c0965ff8 80008= 090 c090e994 00000000 00000000
[=C2=A0 =C2=A0 0.000000] Backtrace= :=C2=A0
[=C2=A0 =C2=A0 0.000000] [<c0919bf4>] (omap2_gp_clo= ckevent_init.constprop.3) from [<c0919d1c>] (omap4_sync32k_timer= _init+0x18/0x44)
[=C2=A0 =C2=A0 0.000000]=C2=A0 r8:ffffffff = r7:00000000 r6:ef649f00 r5:c09b7000 r4:00000000
[=C2=A0 =C2=A0 0.= 000000] [<c0919d04>] (omap4_sync32k_timer_init) from [<c0919db8>= ;] (omap5_realtime_timer_init+0x10/0x190)
[=C2=A0 =C2=A0 0.0= 00000] [<c0919da8>] (omap5_realtime_timer_init) from [<c0911fbc>= ;] (time_init+0x28/0x38)
[=C2=A0 =C2=A0 0.000000]=C2=A0 r5:c09b70= 00 r4:00000000
[=C2=A0 =C2=A0 0.000000] [<c0911f94>] (time_= init) from [<c090ec44>] (start_kernel+0x2bc/0x40c)
[=C2=A0 = =C2=A0 0.000000] [<c090e988>] (start_kernel) from [<80008090>] = (0x80008090)
[=C2=A0 =C2=A0 0.000000]=C2=A0 r10:00000000 r9:412fc= 0f2 r8:80007000 r7:c096af10 r6:c0951e28 r5:c0966488
[=C2=A0 =C2= =A0 0.000000]=C2=A0 r4:c09b7ad4
[=C2=A0 =C2=A0 0.000000] Code: e5= 854184 ebdda6a5 e5942014 e3a03002 (e5823000)=C2=A0
[=C2=A0 =C2=A0= 0.000000] ---[ end trace cb88537fdc8fa200 ]---
[=C2=A0 =C2=A0 0.= 000000] Kernel panic - not syncing: Attempted to kill the idle task!
<= div>[=C2=A0 =C2=A0 0.000000] ---[ end Kernel panic - not syncing: Attempted= to kill the idle task!

Thanks,
Ramya

O= n Wed, Dec 6, 2017 at 10:19 PM, RAMYA RAVICHANDRAN <ramya.r@blac= kpeppertech.com> wrote:
Hello Andrii,

Thanks a ton for sharing you= r wonderful experience.
Have attached the dts file for your refer= ence.

Turning Paging on error was resolved by modi= fying files for MLO.
We have ported kernel 4.4 to accomodate Xen.=

We will do the suggested changes and let you know= .

Thanking you a lot,
Ramya

On Wed, Dec 6, 2017 at 9:56 PM, Andrii= Anisov <andrii.anisov@gmail.com> wrote:
Hello Ramya,

We have = been working on getting Xen hypervisor up on TI DRA7xx J6 platform.<= /blockquote>
Ouch, I remembered, Jacinto6 for sure.
I = see you managed you issues with XEN hang after "Turning paging on"= ;. What was that?

Also = sharing the dts file with you for reference.=C2=A0
No dts is attached though.=C2=A0

We have modified the dom0_mem size from 512MB to 1.5GB, we= are observing hang/crash at different functions. (ie powerdomain/ hwmod_in= it etc).
Recalling my experience with J6 I g= uess not all MMIO registers accessed by kernel during PRCM setup are descri= bed in dts. So XEN traps those accesses from Dom0 and bounce back with data= abort. As a quick hack you should add those registers to your dts. I.e. to= the dummy device node with reg property contained all required registers. = Adding a dra7xx_specific_mapping() function to xen/arch/arm/platforms/omap5= .c similar to=C2=A0omap5_specific_mapping() would be more clean way.
<= div>You should build your XEN with=C2=A0CONFIG_DEBUG enabled, so you will s= ee print from=C2=A0do_trap_data_abort_guest() right before=C2=A0inject= _dabt_exception() call. That print will show what register mappings are mis= sed.

BTW, IIRC, J6 platform code in kernel had= smc call in its depths. SMC is not allowed under xen, so you should cut it= out as well, otherwise XEN will crash the domain.

Sincerely,
Andrii Anisov.
=



--089e0820e314c8c831055fbcaea3-- --===============2376927700597952994== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KRW1iZWRkZWQt cHYtZGV2ZWwgbWFpbGluZyBsaXN0CkVtYmVkZGVkLXB2LWRldmVsQGxpc3RzLnhlbnByb2plY3Qu b3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby9lbWJlZGRl ZC1wdi1kZXZlbA== --===============2376927700597952994==-- From embedded-pv-devel-bounces@lists.xenproject.org Fri Dec 08 11:37:43 2017 Return-path: Envelope-to: archives@lists.xenproject.org Delivery-date: Fri, 08 Dec 2017 11:37:43 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eNGyM-0000Ua-1L; Fri, 08 Dec 2017 11:37:42 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eNGyL-0000UU-59 for embedded-pv-devel@lists.xenproject.org; Fri, 08 Dec 2017 11:37:41 +0000 X-Inumbo-ID: 21d33412-dc0c-11e7-b4a6-bc764e045a96 Received: from mail-pf0-x235.google.com (unknown [2607:f8b0:400e:c00::235]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 21d33412-dc0c-11e7-b4a6-bc764e045a96; Fri, 08 Dec 2017 12:37:13 +0100 (CET) Received: by mail-pf0-x235.google.com with SMTP id j124so7107802pfc.2 for ; Fri, 08 Dec 2017 03:37:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=Jc7KC2X//+mZY2RCzu3XR42krvEUaBPFtqM35zeOJl8=; b=XPvYc/DBLT0NAy2h28nnr9c4ZfWbc6uXe0pNG5rLL7v7/2n20x+kk7vHX1+pEOS6Y1 xsJ8PrVirsgYNic6gmvXUHKVfPyvs8sXAjlc4Y/HbY/oCTk1NVttodbCdFCzYCFnlB9C +/oEEnl87/QRul8t2d0Kpfe0BcIpsKTGgynN2E6hu76cgZ/7+z35ywrXO2jsYOoaqJ1M N89nYwwtAC/KoRW2iYoyhvHqTkVoVIWS8bQxfo6HgyVfefI3GA33xY5VGVW+H+8T8hgE kzLu1NP/rZHxYi5+9pX1II+bSNYdBgGA8OU9WglBq4E6UWvWL5RbLy+XAsFEVSm8xtYQ xuRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=Jc7KC2X//+mZY2RCzu3XR42krvEUaBPFtqM35zeOJl8=; b=CskftIYmIsMVIlAmCGexPbY0OnbPsJwYQtL+3ccpdRztGsACC5b5xqbDYQfa5qE3i6 yUrYajCkkRpTdiI+kra0X5uyn/u7FoPhdY02rtlO8H+OBH972g4ATQaeMGZ+rMpMLkLV Y86BYi4I80Y8GzMjPq/T/rPbSjc80b5xA9YIY1/Y/8jDltfGeH3ApKNM0U811OUCsa9s 5EGS41N2ubGHiVOTvjVJak9lZz10N1T4T2N63bPgUaZKbViqHJj9tKiefeCs/qleJ79B aRblSGf2mghduxk+afZ9ZtRlBqrb9654Jue3XlFr0Gih/6bY6cWT6NkO2qcpuzy5xuhM ZtVA== X-Gm-Message-State: AJaThX7pfjiFNW5TWHQILiAy0VHdz563eSzM7o8RUq0K1o+EX4LaWEXq Q3+SHOh0h3YZeMy58Qmp+ho0vOF5ENqSgQ+pKLc= X-Google-Smtp-Source: AGs4zMaQOABCsa4vnW0qpf3J6dYMefhYWjyhzf1waS2uSosIkWZAO73/FYsgutJ4FiIWEAsMUq86lUKj7mi1XdxakfQ= X-Received: by 10.99.102.196 with SMTP id a187mr29555680pgc.346.1512733056486; Fri, 08 Dec 2017 03:37:36 -0800 (PST) MIME-Version: 1.0 Received: by 10.100.177.140 with HTTP; Fri, 8 Dec 2017 03:37:35 -0800 (PST) In-Reply-To: References: From: Andrii Anisov Date: Fri, 8 Dec 2017 13:37:35 +0200 Message-ID: To: RAMYA RAVICHANDRAN Cc: embedded-pv-devel@lists.xenproject.org Subject: Re: [Embedded-pv-devel] Xen RAM entry X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============6931083495591875873==" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --===============6931083495591875873== Content-Type: multipart/alternative; boundary="94eb2c11b92a78d34a055fd29cfb" --94eb2c11b92a78d34a055fd29cfb Content-Type: text/plain; charset="UTF-8" Hello Ramya, Unfortunately I can not help you with this exact issue, it should be debugged on the board. But there is one more hint: XEN does not actually pass the device tree to Dom0, XEN creates cpu, memory, timer nodes for Dom0 accordingly to the dom0 configuration, than copies device nodes from the original device tree. So your dom0 might be missing some stuff described in cpus nodes. Sincerely, Andrii Anisov. 2017-12-07 11:27 GMT+02:00 RAMYA RAVICHANDRAN : > Hello Andrii, > > The suggestions worked for Data Abort crash.We are able to move forward. > The following is the crash happening due to timers. > > Please let us know your valuabe inputs/experience. > > *Log:* > 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 > [ 0.000000] Preemptible hierarchical RCU implementation. > [ 0.000000] Build-time adjustment of leaf fanout to 32. > [ 0.000000] NR_IRQS:16 nr_irqs:16 16 > [ 0.000000] of_irq_init: children remain, but no parents > [ 0.000000] Function:omap2_gp_clockevent_init at 366 > [ 0.000000] irq: no irq domain found for /ocp/crossbar@4a002a48 ! > [ 0.000000] Function:omap2_gp_clockevent_init at 370 > [ 0.000000] Function:omap2_gp_clockevent_init at 372 > [ 0.000000] Unable to handle kernel NULL pointer dereference at virtual > address 00000000 > [ 0.000000] pgd = c0003000 > [ 0.000000] [00000000] *pgd=80000080004003, *pmd=00000000 > [ 0.000000] Internal error: Oops: a06 [#1] PREEMPT SMP ARM > [ 0.000000] Modules linked in: > [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted > 4.4.84-g7e6588b179 #22 > [ 0.000000] Hardware name: Generic DRA74X (Flattened Device Tree) > [ 0.000000] task: c0969c38 ti: c0964000 task.ti: c0964000 > [ 0.000000] PC is at omap2_gp_clockevent_init.constprop.3+0xa4/0x110 > [ 0.000000] LR is at setup_irq+0x48/0x94 > [ 0.000000] pc : [] lr : [] psr: 600000d3 > [ 0.000000] sp : c0965f38 ip : c0965f18 fp : c0965f64 > [ 0.000000] r10: c0951e2c r9 : c09b7000 r8 : 00000001 > [ 0.000000] r7 : c06abf94 r6 : c0845e40 r5 : c096bb80 r4 : c09b7d94 > [ 0.000000] r3 : 00000002 r2 : 00000000 r1 : ef006000 r0 : ffffffda > [ 0.000000] Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM > Segment kernel > [ 0.000000] Control: 30c5387d Table: 80003000 DAC: fffffffd > [ 0.000000] Process swapper/0 (pid: 0, stack limit = 0xc0964210) > [ 0.000000] Stack: (0xc0965f38 to 0xc0966000) > [ 0.000000] 5f20: > 00000001 00000000 > [ 0.000000] 5f40: c0965f64 00000000 c09b7000 ef649f00 00000000 ffffffff > c0965f74 c0965f68 > [ 0.000000] 5f60: c0919d1c c0919c00 c0965f8c c0965f78 c0919db8 c0919d10 > 00000000 c09b7000 > [ 0.000000] 5f80: c0965f9c c0965f90 c0911fbc c0919db4 c0965ff4 c0965fa0 > c090ec44 c0911fa0 > [ 0.000000] 5fa0: ffffffff ffffffff 00000000 c090e6e8 ffffffff 00000000 > 00000000 c0966400 > [ 0.000000] 5fc0: 00000000 c0951e2c 00000000 c09b7ad4 c0966488 c0951e28 > c096af10 80007000 > [ 0.000000] 5fe0: 412fc0f2 00000000 00000000 c0965ff8 80008090 c090e994 > 00000000 00000000 > [ 0.000000] Backtrace: > [ 0.000000] [] (omap2_gp_clockevent_init.constprop.3) from > [] (omap4_sync32k_timer_init+0x18/0x44) > [ 0.000000] r8:ffffffff r7:00000000 r6:ef649f00 r5:c09b7000 r4:00000000 > [ 0.000000] [] (omap4_sync32k_timer_init) from [] > (omap5_realtime_timer_init+0x10/0x190) > [ 0.000000] [] (omap5_realtime_timer_init) from [] > (time_init+0x28/0x38) > [ 0.000000] r5:c09b7000 r4:00000000 > [ 0.000000] [] (time_init) from [] > (start_kernel+0x2bc/0x40c) > [ 0.000000] [] (start_kernel) from [<80008090>] (0x80008090) > [ 0.000000] r10:00000000 r9:412fc0f2 r8:80007000 r7:c096af10 > r6:c0951e28 r5:c0966488 > [ 0.000000] r4:c09b7ad4 > [ 0.000000] Code: e5854184 ebdda6a5 e5942014 e3a03002 (e5823000) > [ 0.000000] ---[ end trace cb88537fdc8fa200 ]--- > [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > [ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the > idle task! > > Thanks, > Ramya > > On Wed, Dec 6, 2017 at 10:19 PM, RAMYA RAVICHANDRAN < > ramya.r@blackpeppertech.com> wrote: > >> Hello Andrii, >> >> Thanks a ton for sharing your wonderful experience. >> Have attached the dts file for your reference. >> >> Turning Paging on error was resolved by modifying files for MLO. >> We have ported kernel 4.4 to accomodate Xen. >> >> We will do the suggested changes and let you know. >> >> Thanking you a lot, >> Ramya >> >> >> On Wed, Dec 6, 2017 at 9:56 PM, Andrii Anisov >> wrote: >> >>> Hello Ramya, >>> >>> We have been working on getting Xen hypervisor up on TI DRA7xx J6 >>>> platform. >>> >>> Ouch, I remembered, Jacinto6 for sure. >>> I see you managed you issues with XEN hang after "Turning paging on". >>> What was that? >>> >>> Also sharing the dts file with you for reference. >>> >>> No dts is attached though. >>> >>> We have modified the dom0_mem size from 512MB to 1.5GB, we are observing >>>> hang/crash at different functions. (ie powerdomain/ hwmod_init etc). >>> >>> Recalling my experience with J6 I guess not all MMIO registers accessed >>> by kernel during PRCM setup are described in dts. So XEN traps those >>> accesses from Dom0 and bounce back with data abort. As a quick hack you >>> should add those registers to your dts. I.e. to the dummy device node with >>> reg property contained all required registers. Adding a >>> dra7xx_specific_mapping() function to xen/arch/arm/platforms/omap5.c >>> similar to omap5_specific_mapping() would be more clean way. >>> You should build your XEN with CONFIG_DEBUG enabled, so you will see >>> print from do_trap_data_abort_guest() right >>> before inject_dabt_exception() call. That print will show what register >>> mappings are missed. >>> >>> BTW, IIRC, J6 platform code in kernel had smc call in its depths. SMC is >>> not allowed under xen, so you should cut it out as well, otherwise XEN will >>> crash the domain. >>> >>> Sincerely, >>> Andrii Anisov. >>> >>> >> > --94eb2c11b92a78d34a055fd29cfb Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Ramya,

Unfortunately I can not he= lp you with this exact issue, it should be debugged on the board.
But there is one more hint: XEN does not actually pass the device tree to = Dom0, XEN creates cpu, memory, timer nodes for Dom0 accordingly to the dom0= configuration, than copies device nodes from the original device tree. So = your dom0 might be missing some stuff described in cpus nodes.

Sincerely,
= Andrii Anisov.

2017-12-07 11:27 GMT+02:00 RAMYA RAVICHANDRA= N <ramya.r@blackpeppertech.com>:
Hello Andrii,

The suggestions worked for Data Abort crash.We are able to move forward.
The following is the crash happening due to timers.

Please l= et us know your valuabe inputs/experience.

Lo= g:
=C2=A00.000000] SLUB: HWalign=3D64, Order=3D0-3, Mi= nObjects=3D0, CPUs=3D2, Nodes=3D1
[=C2=A0 =C2=A0 0.000000] Preemp= tible hierarchical RCU implementation.
[=C2=A0 =C2=A0 0.000000]= =C2=A0 Build-time adjustment of leaf fanout to 32.
[=C2=A0 =C2=A0= 0.000000] NR_IRQS:16 nr_irqs:16 16
[=C2=A0 =C2=A0 0.000000] of_i= rq_init: children remain, but no parents
[=C2=A0 =C2=A0 0.000000]= Function:omap2_gp_clockevent_init at 366=C2=A0
[=C2=A0 =C2= =A0 0.000000] irq: no irq domain found for /ocp/crossbar@4a002a48 !
[=C2=A0 =C2=A0 0.000000] Function:omap2_gp_clockevent_init at 370= =C2=A0
[=C2=A0 =C2=A0 0.000000] Function:omap2_gp_clockevent_init at 372=C2=A0
[=C2=A0 =C2=A0 0.000000] Unable to handle kern= el NULL pointer dereference at virtual address 00000000
[=C2=A0 = =C2=A0 0.000000] pgd =3D c0003000
[=C2=A0 =C2=A0 0.000000] [00000= 000] *pgd=3D80000080004003, *pmd=3D00000000
[=C2=A0 =C2=A0 0.0000= 00] Internal error: Oops: a06 [#1] PREEMPT SMP ARM
[=C2=A0 =C2=A0= 0.000000] Modules linked in:
[=C2=A0 =C2=A0 0.000000] CPU: 0 PID= : 0 Comm: swapper/0 Not tainted 4.4.84-g7e6588b179 #22
[=C2=A0 = =C2=A0 0.000000] Hardware name: Generic DRA74X (Flattened Device Tree)
[=C2=A0 =C2=A0 0.000000] task: c0969c38 ti: c0964000 task.ti: c096400= 0
[=C2=A0 =C2=A0 0.000000] PC is at omap2_gp_clockevent_init.cons= tprop.3+0xa4/0x110
[=C2=A0 =C2=A0 0.000000] LR is at setup_i= rq+0x48/0x94
[=C2=A0 =C2=A0 0.000000] pc : [<c0919c98>]=C2= =A0 =C2=A0 lr : [<c0083770>]=C2=A0 =C2=A0 psr: 600000d3
[= =C2=A0 =C2=A0 0.000000] sp : c0965f38=C2=A0 ip : c0965f18=C2=A0 fp : c0965f= 64
[=C2=A0 =C2=A0 0.000000] r10: c0951e2c=C2=A0 r9 : c09b7000=C2= =A0 r8 : 00000001
[=C2=A0 =C2=A0 0.000000] r7 : c06abf94=C2=A0 r6= : c0845e40=C2=A0 r5 : c096bb80=C2=A0 r4 : c09b7d94
[=C2=A0 =C2= =A0 0.000000] r3 : 00000002=C2=A0 r2 : 00000000=C2=A0 r1 : ef006000=C2=A0 r= 0 : ffffffda
[=C2=A0 =C2=A0 0.000000] Flags: nZCv=C2=A0 IRQs off= =C2=A0 FIQs off=C2=A0 Mode SVC_32=C2=A0 ISA ARM=C2=A0 Segment kernel
<= div>[=C2=A0 =C2=A0 0.000000] Control: 30c5387d=C2=A0 Table: 80003000=C2=A0 = DAC: fffffffd
[=C2=A0 =C2=A0 0.000000] Process swapper/0 (pid: 0,= stack limit =3D 0xc0964210)
[=C2=A0 =C2=A0 0.000000] Stack: (0xc= 0965f38 to 0xc0966000)
[=C2=A0 =C2=A0 0.000000] 5f20:=C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A000000001 00000000
[=C2=A0 = =C2=A0 0.000000] 5f40: c0965f64 00000000 c09b7000 ef649f00 00000000 fffffff= f c0965f74 c0965f68
[=C2=A0 =C2=A0 0.000000] 5f60: c0919d1c c0919= c00 c0965f8c c0965f78 c0919db8 c0919d10 00000000 c09b7000
[=C2=A0= =C2=A0 0.000000] 5f80: c0965f9c c0965f90 c0911fbc c0919db4 c0965ff4 c0965f= a0 c090ec44 c0911fa0
[=C2=A0 =C2=A0 0.000000] 5fa0: ffffffff ffff= ffff 00000000 c090e6e8 ffffffff 00000000 00000000 c0966400
[=C2= =A0 =C2=A0 0.000000] 5fc0: 00000000 c0951e2c 00000000 c09b7ad4 c0966488 c09= 51e28 c096af10 80007000
[=C2=A0 =C2=A0 0.000000] 5fe0: 412fc0f2 0= 0000000 00000000 c0965ff8 80008090 c090e994 00000000 00000000
[= =C2=A0 =C2=A0 0.000000] Backtrace:=C2=A0
[=C2=A0 =C2=A0 0.000000]= [<c0919bf4>] (omap2_gp_clockevent_init.constprop.3) from [<c= 0919d1c>] (omap4_sync32k_timer_init+0x18/0x44)
[=C2=A0 = =C2=A0 0.000000]=C2=A0 r8:ffffffff r7:00000000 r6:ef649f00 r5:c09b7000 r4:0= 0000000
[=C2=A0 =C2=A0 0.000000] [<c0919d04>] (omap4_sync32= k_timer_init) from [<c0919db8>] (omap5_realtime_timer_init+0x10/= 0x190)
[=C2=A0 =C2=A0 0.000000] [<c0919da8>] (omap5_realtim= e_timer_init) from [<c0911fbc>] (time_init+0x28/0x38)
[=C2= =A0 =C2=A0 0.000000]=C2=A0 r5:c09b7000 r4:00000000
[=C2=A0 =C2=A0= 0.000000] [<c0911f94>] (time_init) from [<c090ec44>] (start_ke= rnel+0x2bc/0x40c)
[=C2=A0 =C2=A0 0.000000] [<c090e988>] (st= art_kernel) from [<80008090>] (0x80008090)
[=C2=A0 =C2=A0 0= .000000]=C2=A0 r10:00000000 r9:412fc0f2 r8:80007000 r7:c096af10 r6:c0951e28= r5:c0966488
[=C2=A0 =C2=A0 0.000000]=C2=A0 r4:c09b7ad4
[=C2=A0 =C2=A0 0.000000] Code: e5854184 ebdda6a5 e5942014 e3a03002 (e58230= 00)=C2=A0
[=C2=A0 =C2=A0 0.000000] ---[ end trace cb88537fdc8fa20= 0 ]---
[=C2=A0 =C2=A0 0.000000] Kernel panic - not syncing: Attem= pted to kill the idle task!
[=C2=A0 =C2=A0 0.000000] ---[ end Ker= nel panic - not syncing: Attempted to kill the idle task!

Thanks,
Ramya

On Wed, Dec 6, 2017 at 10:19 PM, = RAMYA RAVICHANDRAN <ramya.r@blackpeppertech.com> w= rote:
Hello Andrii,
=
Thanks a ton for sharing your wonderful experience.
Have attached the dts file for your reference.

T= urning Paging on error was resolved by modifying files for MLO.
W= e have ported kernel 4.4 to accomodate Xen.

We wil= l do the suggested changes and let you know.

Thank= ing you a lot,
Ramya


On Wed, Dec 6, 2017 at 9:56 PM, Andrii Anisov <andr= ii.anisov@gmail.com> wrote:
Hello Ramya,

We have been working on gett= ing Xen hypervisor up on TI DRA7xx J6 platform.
<= div>Ouch, I remembered, Jacinto6 for sure.
I see you managed you = issues with XEN hang after "Turning paging on". What was that?

<= span style=3D"color:rgb(38,50,56);font-size:13px">Also sharing the dts file= with you for reference.=C2=A0
No dts is att= ached though.=C2=A0

We = have modified the dom0_mem size from 512MB to 1.5GB, we are observing hang/= crash at different functions. (ie powerdomain/ hwmod_init etc).
Recalling my experience with J6 I guess not all MMIO re= gisters accessed by kernel during PRCM setup are described in dts. So XEN t= raps those accesses from Dom0 and bounce back with data abort. As a quick h= ack you should add those registers to your dts. I.e. to the dummy device no= de with reg property contained all required registers. Adding a dra7xx_spec= ific_mapping() function to xen/arch/arm/platforms/omap5.c similar to=C2=A0o= map5_specific_mapping() would be more clean way.
You should build= your XEN with=C2=A0CONFIG_DEBUG enabled, so you will see print from=C2=A0d= o_trap_data_abort_guest() right before=C2=A0inject_dabt_exception() ca= ll. That print will show what register mappings are missed.
<= br>
BTW, IIRC, J6 platform code in kernel had smc call in its dep= ths. SMC is not allowed under xen, so you should cut it out as well, otherw= ise XEN will crash the domain.

Sincerely,
And= rii Anisov.




--94eb2c11b92a78d34a055fd29cfb-- --===============6931083495591875873== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KRW1iZWRkZWQt cHYtZGV2ZWwgbWFpbGluZyBsaXN0CkVtYmVkZGVkLXB2LWRldmVsQGxpc3RzLnhlbnByb2plY3Qu b3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby9lbWJlZGRl ZC1wdi1kZXZlbA== --===============6931083495591875873==-- From embedded-pv-devel-bounces@lists.xenproject.org Sat Dec 09 11:19:22 2017 Return-path: Envelope-to: archives@lists.xenproject.org Delivery-date: Sat, 09 Dec 2017 11:19:22 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eNdA9-00052a-TQ; Sat, 09 Dec 2017 11:19:21 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eNdA8-00052U-Uf for embedded-pv-devel@lists.xenproject.org; Sat, 09 Dec 2017 11:19:21 +0000 X-Inumbo-ID: bc352556-dcd2-11e7-b4a6-bc764e045a96 Received: from mail-wm0-x243.google.com (unknown [2a00:1450:400c:c09::243]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id bc352556-dcd2-11e7-b4a6-bc764e045a96; Sat, 09 Dec 2017 12:18:52 +0100 (CET) Received: by mail-wm0-x243.google.com with SMTP id 9so6946781wme.4 for ; Sat, 09 Dec 2017 03:19:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=blackpeppertech-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=uao9aRqFTvlgu4vdXKXAXKY2Cb3yuC8A4RnIozNq4TA=; b=esfq96smgLgZ68bIQSlHFU5AdCT/Lj/0uKKYn/zVMhnAxdD0wi1/hqrS5X+aqqJU+m EctAm0tN6FaGWtISvGxZ8+VebuLIBy22h2NUH88MNuLLjMMYeHt+qAx6AqZRuvFCnSWI WRwVtBiGUjuqhWHEQx9KDp7tHymESz4K6p6pIvRfKIkI2DZ6Bl92gY2GufGgplnP8yXT mPVavwxa6Vv48Acsieao+NIDbHzkiI7eMMasa4pYhsmBlFx9Kwhfanrz2WZOd9LEoLjx O8m9yY5Bxm+iGrkM8fqgwDTNZB+B0MuDUj4Oqbg3hFAQQ62JnVTQvjcf11vB9cor68Fp oTUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=uao9aRqFTvlgu4vdXKXAXKY2Cb3yuC8A4RnIozNq4TA=; b=fPJzs+LRbCVhO/fQesrOr6ead/THXbmy5A0Mi9RdlGM7dXWvjb0VAGEOfhh0w0HJVw aVTSVJCPBsaZn9UWSw5fVGza1pLd9+W9+mgqvIMswX1/8WkgAUO0eLr+OVqr4Hju6WEV hqZtyp+yrWlGPhAIrj+lgRiCxAGWGR2OQw/kpUCh4e6Z/m7u16jJ+FgDi0vl60hdbGG7 owTAQJQ+SWT5uVqOX3B0azT4LaRocsUdKf/m6K0HSI33NcwJGEmxUFHmFXyL6oK9vU49 UAG+jabMqW5Gck63xCvxGLT6rW2lODQoyhDx2aObUqrFzb91xuQiPYeptWOvZfZHg1rA gUyQ== X-Gm-Message-State: AKGB3mKippWY+S4gEtDDMyMSjezve6vBG+CE3DlkouBoRo0HCybvELJY JFCJ53H0zJ+5kX6S1IEf1nLkbcBD0sI0nbyKwgfCFQ== X-Google-Smtp-Source: AGs4zMYsgG0aVja5yKkuju+gxKL8f2zI1ttgLM98EfCavjwAY6G0pgS2TzJVte9+4reDAtVSQF4YuLtpTrxVK3OZzEw= X-Received: by 10.28.220.215 with SMTP id t206mr6011032wmg.75.1512818357652; Sat, 09 Dec 2017 03:19:17 -0800 (PST) MIME-Version: 1.0 Received: by 10.223.198.6 with HTTP; Sat, 9 Dec 2017 03:19:16 -0800 (PST) In-Reply-To: References: From: RAMYA RAVICHANDRAN Date: Sat, 9 Dec 2017 16:49:16 +0530 Message-ID: To: Andrii Anisov Cc: embedded-pv-devel@lists.xenproject.org Subject: Re: [Embedded-pv-devel] Xen RAM entry X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============4327686028383487334==" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --===============4327686028383487334== Content-Type: multipart/alternative; boundary="001a114b2d46d165cc055fe678ad" --001a114b2d46d165cc055fe678ad Content-Type: text/plain; charset="UTF-8" Hello Andrii and Embedded PV developers, Thanks for your prompt hints. There is a modification in the present device tree used for latest J6 Processor SDK. The modification is the peripherals' interrupts are connected via CROSSBAR_MPU to GIC. It would be great if suggest any procedure/ best practices to accomodate the above in Xen? Thanks, Ramya On Fri, Dec 8, 2017 at 5:07 PM, Andrii Anisov wrote: > Hello Ramya, > > Unfortunately I can not help you with this exact issue, it should be > debugged on the board. > But there is one more hint: XEN does not actually pass the device tree to > Dom0, XEN creates cpu, memory, timer nodes for Dom0 accordingly to the dom0 > configuration, than copies device nodes from the original device tree. So > your dom0 might be missing some stuff described in cpus nodes. > > Sincerely, > Andrii Anisov. > > 2017-12-07 11:27 GMT+02:00 RAMYA RAVICHANDRAN >: > >> Hello Andrii, >> >> The suggestions worked for Data Abort crash.We are able to move forward. >> The following is the crash happening due to timers. >> >> Please let us know your valuabe inputs/experience. >> >> *Log:* >> 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 >> [ 0.000000] Preemptible hierarchical RCU implementation. >> [ 0.000000] Build-time adjustment of leaf fanout to 32. >> [ 0.000000] NR_IRQS:16 nr_irqs:16 16 >> [ 0.000000] of_irq_init: children remain, but no parents >> [ 0.000000] Function:omap2_gp_clockevent_init at 366 >> [ 0.000000] irq: no irq domain found for /ocp/crossbar@4a002a48 ! >> [ 0.000000] Function:omap2_gp_clockevent_init at 370 >> [ 0.000000] Function:omap2_gp_clockevent_init at 372 >> [ 0.000000] Unable to handle kernel NULL pointer dereference at >> virtual address 00000000 >> [ 0.000000] pgd = c0003000 >> [ 0.000000] [00000000] *pgd=80000080004003, *pmd=00000000 >> [ 0.000000] Internal error: Oops: a06 [#1] PREEMPT SMP ARM >> [ 0.000000] Modules linked in: >> [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted >> 4.4.84-g7e6588b179 #22 >> [ 0.000000] Hardware name: Generic DRA74X (Flattened Device Tree) >> [ 0.000000] task: c0969c38 ti: c0964000 task.ti: c0964000 >> [ 0.000000] PC is at omap2_gp_clockevent_init.constprop.3+0xa4/0x110 >> [ 0.000000] LR is at setup_irq+0x48/0x94 >> [ 0.000000] pc : [] lr : [] psr: 600000d3 >> [ 0.000000] sp : c0965f38 ip : c0965f18 fp : c0965f64 >> [ 0.000000] r10: c0951e2c r9 : c09b7000 r8 : 00000001 >> [ 0.000000] r7 : c06abf94 r6 : c0845e40 r5 : c096bb80 r4 : c09b7d94 >> [ 0.000000] r3 : 00000002 r2 : 00000000 r1 : ef006000 r0 : ffffffda >> [ 0.000000] Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM >> Segment kernel >> [ 0.000000] Control: 30c5387d Table: 80003000 DAC: fffffffd >> [ 0.000000] Process swapper/0 (pid: 0, stack limit = 0xc0964210) >> [ 0.000000] Stack: (0xc0965f38 to 0xc0966000) >> [ 0.000000] 5f20: >> 00000001 00000000 >> [ 0.000000] 5f40: c0965f64 00000000 c09b7000 ef649f00 00000000 >> ffffffff c0965f74 c0965f68 >> [ 0.000000] 5f60: c0919d1c c0919c00 c0965f8c c0965f78 c0919db8 >> c0919d10 00000000 c09b7000 >> [ 0.000000] 5f80: c0965f9c c0965f90 c0911fbc c0919db4 c0965ff4 >> c0965fa0 c090ec44 c0911fa0 >> [ 0.000000] 5fa0: ffffffff ffffffff 00000000 c090e6e8 ffffffff >> 00000000 00000000 c0966400 >> [ 0.000000] 5fc0: 00000000 c0951e2c 00000000 c09b7ad4 c0966488 >> c0951e28 c096af10 80007000 >> [ 0.000000] 5fe0: 412fc0f2 00000000 00000000 c0965ff8 80008090 >> c090e994 00000000 00000000 >> [ 0.000000] Backtrace: >> [ 0.000000] [] (omap2_gp_clockevent_init.constprop.3) from >> [] (omap4_sync32k_timer_init+0x18/0x44) >> [ 0.000000] r8:ffffffff r7:00000000 r6:ef649f00 r5:c09b7000 >> r4:00000000 >> [ 0.000000] [] (omap4_sync32k_timer_init) from [] >> (omap5_realtime_timer_init+0x10/0x190) >> [ 0.000000] [] (omap5_realtime_timer_init) from [] >> (time_init+0x28/0x38) >> [ 0.000000] r5:c09b7000 r4:00000000 >> [ 0.000000] [] (time_init) from [] >> (start_kernel+0x2bc/0x40c) >> [ 0.000000] [] (start_kernel) from [<80008090>] (0x80008090) >> [ 0.000000] r10:00000000 r9:412fc0f2 r8:80007000 r7:c096af10 >> r6:c0951e28 r5:c0966488 >> [ 0.000000] r4:c09b7ad4 >> [ 0.000000] Code: e5854184 ebdda6a5 e5942014 e3a03002 (e5823000) >> [ 0.000000] ---[ end trace cb88537fdc8fa200 ]--- >> [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle >> task! >> [ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the >> idle task! >> >> Thanks, >> Ramya >> >> On Wed, Dec 6, 2017 at 10:19 PM, RAMYA RAVICHANDRAN < >> ramya.r@blackpeppertech.com> wrote: >> >>> Hello Andrii, >>> >>> Thanks a ton for sharing your wonderful experience. >>> Have attached the dts file for your reference. >>> >>> Turning Paging on error was resolved by modifying files for MLO. >>> We have ported kernel 4.4 to accomodate Xen. >>> >>> We will do the suggested changes and let you know. >>> >>> Thanking you a lot, >>> Ramya >>> >>> >>> On Wed, Dec 6, 2017 at 9:56 PM, Andrii Anisov >>> wrote: >>> >>>> Hello Ramya, >>>> >>>> We have been working on getting Xen hypervisor up on TI DRA7xx J6 >>>>> platform. >>>> >>>> Ouch, I remembered, Jacinto6 for sure. >>>> I see you managed you issues with XEN hang after "Turning paging on". >>>> What was that? >>>> >>>> Also sharing the dts file with you for reference. >>>> >>>> No dts is attached though. >>>> >>>> We have modified the dom0_mem size from 512MB to 1.5GB, we are >>>>> observing hang/crash at different functions. (ie powerdomain/ hwmod_init >>>>> etc). >>>> >>>> Recalling my experience with J6 I guess not all MMIO registers accessed >>>> by kernel during PRCM setup are described in dts. So XEN traps those >>>> accesses from Dom0 and bounce back with data abort. As a quick hack you >>>> should add those registers to your dts. I.e. to the dummy device node with >>>> reg property contained all required registers. Adding a >>>> dra7xx_specific_mapping() function to xen/arch/arm/platforms/omap5.c >>>> similar to omap5_specific_mapping() would be more clean way. >>>> You should build your XEN with CONFIG_DEBUG enabled, so you will see >>>> print from do_trap_data_abort_guest() right >>>> before inject_dabt_exception() call. That print will show what register >>>> mappings are missed. >>>> >>>> BTW, IIRC, J6 platform code in kernel had smc call in its depths. SMC >>>> is not allowed under xen, so you should cut it out as well, otherwise XEN >>>> will crash the domain. >>>> >>>> Sincerely, >>>> Andrii Anisov. >>>> >>>> >>> >> > --001a114b2d46d165cc055fe678ad Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Andrii and Embedded PV= developers,

Thanks for your prompt hints.
There is a= modification in the present device tree used for latest J6 Processor SDK.<= br>
The modification is the peripherals' interrupts are connected = via CROSSBAR_MPU to GIC.

It would be great if=C2=A0 suggest an= y procedure/ best practices to accomodate the above in Xen?

Th= anks,
Ramya

On Fri, Dec 8, 2017 at 5:07 PM, Andrii Anisov <andrii.a= nisov@gmail.com> wrote:
Hello Ramya,

Unfortunately I can not help = you with this exact issue, it should be debugged on the board.
Bu= t there is one more hint: XEN does not actually pass the device tree to Dom= 0, XEN creates cpu, memory, timer nodes for Dom0 accordingly to the dom0 co= nfiguration, than copies device nodes from the original device tree. So you= r dom0 might be missing some stuff described in cpus nodes.

Sincerely,
Andrii Anisov.

2017-12-07 11:27 GMT+02:00 RAMYA RAVICHANDRA= N <ramya.r@blackpeppertech.com>:
Hello Andrii,

The suggestions worked for Data Abort crash.We are able to move forward.
The following is the crash happening due to timers.

Please l= et us know your valuabe inputs/experience.

Lo= g:
=C2=A00.000000] SLUB: HWalign=3D64, Order=3D0-3, Mi= nObjects=3D0, CPUs=3D2, Nodes=3D1
[=C2=A0 =C2=A0 0.000000] Preemp= tible hierarchical RCU implementation.
[=C2=A0 =C2=A0 0.000000]= =C2=A0 Build-time adjustment of leaf fanout to 32.
[=C2=A0 =C2=A0= 0.000000] NR_IRQS:16 nr_irqs:16 16
[=C2=A0 =C2=A0 0.000000] of_i= rq_init: children remain, but no parents
[=C2=A0 =C2=A0 0.000000]= Function:omap2_gp_clockevent_init at 366=C2=A0
[=C2=A0 =C2= =A0 0.000000] irq: no irq domain found for /ocp/crossbar@4a002a48 !
[=C2=A0 =C2=A0 0.000000] Function:omap2_gp_clockevent_init at 370= =C2=A0
[=C2=A0 =C2=A0 0.000000] Function:omap2_gp_clockevent_init at 372=C2=A0
[=C2=A0 =C2=A0 0.000000] Unable to handle kern= el NULL pointer dereference at virtual address 00000000
[=C2=A0 = =C2=A0 0.000000] pgd =3D c0003000
[=C2=A0 =C2=A0 0.000000] [00000= 000] *pgd=3D80000080004003, *pmd=3D00000000
[=C2=A0 =C2=A0 0.0000= 00] Internal error: Oops: a06 [#1] PREEMPT SMP ARM
[=C2=A0 =C2=A0= 0.000000] Modules linked in:
[=C2=A0 =C2=A0 0.000000] CPU: 0 PID= : 0 Comm: swapper/0 Not tainted 4.4.84-g7e6588b179 #22
[=C2=A0 = =C2=A0 0.000000] Hardware name: Generic DRA74X (Flattened Device Tree)
[=C2=A0 =C2=A0 0.000000] task: c0969c38 ti: c0964000 task.ti: c096400= 0
[=C2=A0 =C2=A0 0.000000] PC is at omap2_gp_clockevent_init.cons= tprop.3+0xa4/0x110
[=C2=A0 =C2=A0 0.000000] LR is at setup_i= rq+0x48/0x94
[=C2=A0 =C2=A0 0.000000] pc : [<c0919c98>]=C2= =A0 =C2=A0 lr : [<c0083770>]=C2=A0 =C2=A0 psr: 600000d3
[= =C2=A0 =C2=A0 0.000000] sp : c0965f38=C2=A0 ip : c0965f18=C2=A0 fp : c0965f= 64
[=C2=A0 =C2=A0 0.000000] r10: c0951e2c=C2=A0 r9 : c09b7000=C2= =A0 r8 : 00000001
[=C2=A0 =C2=A0 0.000000] r7 : c06abf94=C2=A0 r6= : c0845e40=C2=A0 r5 : c096bb80=C2=A0 r4 : c09b7d94
[=C2=A0 =C2= =A0 0.000000] r3 : 00000002=C2=A0 r2 : 00000000=C2=A0 r1 : ef006000=C2=A0 r= 0 : ffffffda
[=C2=A0 =C2=A0 0.000000] Flags: nZCv=C2=A0 IRQs off= =C2=A0 FIQs off=C2=A0 Mode SVC_32=C2=A0 ISA ARM=C2=A0 Segment kernel
<= div>[=C2=A0 =C2=A0 0.000000] Control: 30c5387d=C2=A0 Table: 80003000=C2=A0 = DAC: fffffffd
[=C2=A0 =C2=A0 0.000000] Process swapper/0 (pid: 0,= stack limit =3D 0xc0964210)
[=C2=A0 =C2=A0 0.000000] Stack: (0xc= 0965f38 to 0xc0966000)
[=C2=A0 =C2=A0 0.000000] 5f20:=C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A000000001 00000000
[=C2=A0 = =C2=A0 0.000000] 5f40: c0965f64 00000000 c09b7000 ef649f00 00000000 fffffff= f c0965f74 c0965f68
[=C2=A0 =C2=A0 0.000000] 5f60: c0919d1c c0919= c00 c0965f8c c0965f78 c0919db8 c0919d10 00000000 c09b7000
[=C2=A0= =C2=A0 0.000000] 5f80: c0965f9c c0965f90 c0911fbc c0919db4 c0965ff4 c0965f= a0 c090ec44 c0911fa0
[=C2=A0 =C2=A0 0.000000] 5fa0: ffffffff ffff= ffff 00000000 c090e6e8 ffffffff 00000000 00000000 c0966400
[=C2= =A0 =C2=A0 0.000000] 5fc0: 00000000 c0951e2c 00000000 c09b7ad4 c0966488 c09= 51e28 c096af10 80007000
[=C2=A0 =C2=A0 0.000000] 5fe0: 412fc0f2 0= 0000000 00000000 c0965ff8 80008090 c090e994 00000000 00000000
[= =C2=A0 =C2=A0 0.000000] Backtrace:=C2=A0
[=C2=A0 =C2=A0 0.000000]= [<c0919bf4>] (omap2_gp_clockevent_init.constprop.3) from [<c= 0919d1c>] (omap4_sync32k_timer_init+0x18/0x44)
[=C2=A0 = =C2=A0 0.000000]=C2=A0 r8:ffffffff r7:00000000 r6:ef649f00 r5:c09b7000 r4:0= 0000000
[=C2=A0 =C2=A0 0.000000] [<c0919d04>] (omap4_sync32= k_timer_init) from [<c0919db8>] (omap5_realtime_timer_init+0x10/= 0x190)
[=C2=A0 =C2=A0 0.000000] [<c0919da8>] (omap5_realtim= e_timer_init) from [<c0911fbc>] (time_init+0x28/0x38)
[=C2= =A0 =C2=A0 0.000000]=C2=A0 r5:c09b7000 r4:00000000
[=C2=A0 =C2=A0= 0.000000] [<c0911f94>] (time_init) from [<c090ec44>] (start_ke= rnel+0x2bc/0x40c)
[=C2=A0 =C2=A0 0.000000] [<c090e988>] (st= art_kernel) from [<80008090>] (0x80008090)
[=C2=A0 =C2=A0 0= .000000]=C2=A0 r10:00000000 r9:412fc0f2 r8:80007000 r7:c096af10 r6:c0951e28= r5:c0966488
[=C2=A0 =C2=A0 0.000000]=C2=A0 r4:c09b7ad4
[=C2=A0 =C2=A0 0.000000] Code: e5854184 ebdda6a5 e5942014 e3a03002 (e58230= 00)=C2=A0
[=C2=A0 =C2=A0 0.000000] ---[ end trace cb88537fdc8fa20= 0 ]---
[=C2=A0 =C2=A0 0.000000] Kernel panic - not syncing: Attem= pted to kill the idle task!
[=C2=A0 =C2=A0 0.000000] ---[ end Ker= nel panic - not syncing: Attempted to kill the idle task!

Thanks,
Ramya

On Wed, Dec 6, 2017 at 10:19 PM, RAMYA RAVICHANDRAN <= ramya.r@blackpeppertech.com> wrote:
Hello Andrii,

Thanks a ton for= sharing your wonderful experience.
Have attached the dts file fo= r your reference.

Turning Paging on error was reso= lved by modifying files for MLO.
We have ported kernel 4.4 to acc= omodate Xen.

We will do the suggested changes and = let you know.

Thanking you a lot,
Ramya<= /div>

On Wed, Dec 6, 2017 at 9:56 PM, Andrii Anisov = <andrii.anisov@gmail.com> wrote:
Hello Ramya,

We have been = working on getting Xen hypervisor up on TI DRA7xx J6 platform.
Ouch, I remembered, Jacinto6 for sure.
I see y= ou managed you issues with XEN hang after "Turning paging on". Wh= at was that?

Also shari= ng the dts file with you for reference.=C2=A0
No dts is attached though.=C2=A0

We have modified the dom0_mem size from 512MB to 1.5GB, we are = observing hang/crash at different functions. (ie powerdomain/ hwmod_init et= c).
Recalling my experience with J6 I guess = not all MMIO registers accessed by kernel during PRCM setup are described i= n dts. So XEN traps those accesses from Dom0 and bounce back with data abor= t. As a quick hack you should add those registers to your dts. I.e. to the = dummy device node with reg property contained all required registers. Addin= g a dra7xx_specific_mapping() function to xen/arch/arm/platforms/omap5.c si= milar to=C2=A0omap5_specific_mapping() would be more clean way.
Y= ou should build your XEN with=C2=A0CONFIG_DEBUG enabled, so you will see pr= int from=C2=A0do_trap_data_abort_guest() right before=C2=A0inject_dabt= _exception() call. That print will show what register mappings are missed.<= br>

BTW, IIRC, J6 platform code in kernel had smc = call in its depths. SMC is not allowed under xen, so you should cut it out = as well, otherwise XEN will crash the domain.

Sincerely,
Andrii Anisov.





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Mon, 11 Dec 2017 15:17:09 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eOPpM-0002KA-Uf for embedded-pv-devel@lists.xenproject.org; Mon, 11 Dec 2017 15:17:09 +0000 X-Inumbo-ID: 46f7684f-de86-11e7-b4a6-bc764e045a96 Received: from mail-wm0-x235.google.com (unknown [2a00:1450:400c:c09::235]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 46f7684f-de86-11e7-b4a6-bc764e045a96; Mon, 11 Dec 2017 16:16:36 +0100 (CET) Received: by mail-wm0-x235.google.com with SMTP id y82so13566427wmg.1 for ; Mon, 11 Dec 2017 07:17:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=blackpeppertech-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=cgH5hhl9+yxZ86z/F3FNSeMCURNdQTwN5mMV8Dbhrms=; b=0mFoXXiJlvl0ienYPN3PHuR0milZl9E14y1UfQOXTJoczfTrxljYLh2ZKIC84v/tjz GRSWudRNnLXjH4ZnIbS5u5WI8Rg1gBHXb74E1kVoQuEeX8O9xfnONSEgX+xh1QugqLo+ scRUOsySNKrCnNLijiwcQZp2MKzIwVIyoENzEVS/tyXNXCy9j7Uf0x8eAqu2zY/mJ+MT OaSKc+1D56sCzXf8qz/DdQFAnRrEufYCh9PxEFgRGvegL99pIDM2ZXlUIOWPLsE/hrOp Iyjh/iDOeUjFWbk/6xIjKpPErj35aGfNZNPeZj/tjKnDeNF57ffHZk5Y/OudemLSY5UT +XGA== X-Google-DKIM-Signature: v=1; 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boundary="===============4447910471017291450==" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --===============4447910471017291450== Content-Type: multipart/alternative; boundary="001a1141922ce8fe4105601206a8" --001a1141922ce8fe4105601206a8 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello Andrii, Thanks a lot again for your time saving mail=F0=9F=98=8A Will definitely get back to you after the changes. Grateful for your efforts and time, Ramya On Mon, Dec 11, 2017 at 7:09 PM, Andrii Anisov wrote: > Hello Ramya, > > Yep, I forgot the TI's SoCs have crossbar. It's my bad. > Actually the TI's crossbar configuration in kernel appeared not so > long ago (about 2 years ago) contradicts with the XEN hypervisor > approach. > In systems with XEN all HW interrupts are taken by XEN and then > injected into a domain this interrupt is assigned. This is configured > at the moment XEN parses an input device tree. So when the Dom0 kernel > starts processing crossbar setup some interrupts might be assigned to > SPI which are not assigned to this domain and will be never delivered. > > One of the option to solve the issue could be removing crossbar kernel > driver. For devices which interrupts are not routed by default to gic, > you should setup crossbar in u-boot (it was like that before moving > that driver to thekernel). And have this properly described in DTS. > You also might be interested in this antique patch series: > https://marc.info/?l=3Dxen-devel&m=3D143745896722769&w=3D2 > > Sincerely, > Andrii Anisov. > > 2017-12-09 13:19 GMT+02:00 RAMYA RAVICHANDRAN >: > > > > Hello Andrii and Embedded PV developers, > > > > Thanks for your prompt hints. > > There is a modification in the present device tree used for latest J6 > Processor SDK. > > The modification is the peripherals' interrupts are connected via > CROSSBAR_MPU to GIC. > > > > It would be great if suggest any procedure/ best practices to > accomodate the above in Xen? > > > --001a1141922ce8fe4105601206a8 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Andrii,

Thanks a lo= t again for your time saving mail=F0=9F=98=8A
Will definitely get = back to you after the changes.

Grateful for your efforts and t= ime,
Ramya

On Mon, Dec 11, 2017 at 7:09 PM, Andrii Anisov <andrii.a= nisov@gmail.com> wrote:
Hel= lo Ramya,

Yep, I forgot the TI's SoCs have crossbar. It's my bad.
Actually the TI's crossbar configuration in kernel appeared not so
long ago (about 2 years ago) contradicts with the XEN hypervisor
approach.
In systems with XEN all HW interrupts are taken by XEN and then
injected into a domain this interrupt is assigned. This is configured
at the moment XEN parses an input device tree. So when the Dom0 kernel
starts processing crossbar setup some interrupts might be assigned to
SPI which are not assigned to this domain and will be never delivered.

One of the option to solve the issue could be removing crossbar kernel
driver. For devices which interrupts are not routed by default to gic,
you should setup crossbar in u-boot (it was like that before moving
that driver to thekernel).=C2=A0 And have this properly described in DTS. You also might be interested in this antique patch series:
https://marc.info/?l=3Dxen-= devel&m=3D143745896722769&w=3D2

Sincerely,
Andrii Anisov.

2017-12-09 13:19 GMT+02:00 RAMYA RAVICHANDRAN <ramya.r@blackpeppertech.com>:
>
> Hello Andrii and Embedded PV developers,
>
> Thanks for your prompt hints.
> There is a modification in the present device tree used for latest J6 = Processor SDK.
> The modification is the peripherals' interrupts are connected via = CROSSBAR_MPU to GIC.
>
> It would be great if=C2=A0 suggest any procedure/ best practices to ac= comodate the above in Xen?
>

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Tue, 12 Dec 2017 20:20:50 +0000 X-Inumbo-ID: dbc042d7-df79-11e7-b4a6-bc764e045a96 Received: from mail4.protonmail.ch (unknown [185.70.40.27]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id dbc042d7-df79-11e7-b4a6-bc764e045a96; Tue, 12 Dec 2017 21:20:13 +0100 (CET) Date: Tue, 12 Dec 2017 15:20:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=default; t=1513110043; bh=YXNInwIbu74sJ1rBm13KGJqW2TQhtPl8q07o9H4TC+I=; h=Date:To:From:Reply-To:Subject:Feedback-ID:From; b=RmGAAzXIiFI9CAtsY3OB39yYw7oJZtb91byrETWwfGfEW+yUfxib+XvI1iITID343 vhm3u6whUxJ052MjFSbzU+aw/ipWLC9e41HIlSvlaFICJDMN44fy07IdP6app+fk/o 8C+yVYJ2IbW9+JtWp1k9p2kqfYPMElpAyh8+U5fc= To: "embedded-pv-devel@lists.xenproject.org" From: "Michael.rosswood" Message-ID: Feedback-ID: OrzRojNslqUTrH9zBJhWsc3NMITTfjZ50gdSdmwyIev-Y-h92TwYyFqvq-tMZ2Ere4edSMU2qHgZm8tzNuQ5_Q==:Ext:ProtonMail MIME-Version: 1.0 X-Spam-Status: No, score=-1.1 required=5.0 tests=ALL_TRUSTED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,HTML_MESSAGE autolearn=ham autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail.protonmail.ch X-Mailman-Approved-At: Mon, 18 Dec 2017 08:30:51 +0000 Subject: [Embedded-pv-devel] Memory usage on Aaarch64 X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Reply-To: "Michael.rosswood" Content-Type: multipart/mixed; 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Mon, 18 Dec 2017 00:34:01 -0800 (PST) MIME-Version: 1.0 Received: by 10.200.53.60 with HTTP; Mon, 18 Dec 2017 00:34:01 -0800 (PST) In-Reply-To: References: From: Julien Grall Date: Mon, 18 Dec 2017 08:34:01 +0000 Message-ID: To: "Michael.rosswood" Cc: "embedded-pv-devel@lists.xenproject.org" Subject: Re: [Embedded-pv-devel] Memory usage on Aaarch64 X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" SGVsbG8sCgpJIGFscmVhZHkgYW5zd2VyZWQgdG8gdGhpcyBxdWVzdGlvbiBvbiB4ZW4tZGV2ZWwu IFBsZWFzZSBoYXZlIGEgbG9vayBhdCBbMV0KClsxXSBodHRwczovL2xpc3RzLnhlbnByb2plY3Qu b3JnL2FyY2hpdmVzL2h0bWwveGVuLWRldmVsLzIwMTctMTIvbXNnMDExNzYuaHRtbAoKQ2hlZXJz LAoKCk9uIDEyIERlY2VtYmVyIDIwMTcgYXQgMjA6MjAsIE1pY2hhZWwucm9zc3dvb2QKPG1pY2hh ZWwucm9zc3dvb2RAcHJvdG9ubWFpbC5jb20+IHdyb3RlOgo+IEhlbGxvIGV2ZXJ5b25lLAo+Cj4g SSdtIHRyeWluZyB0byB1bmRlcnN0YW5kIGhvdyBYZW4gYW5kIGVhY2ggZG9tYWluIHVzZSBSQU0K PiBvbiBBYXJjaDY0IHN5c3RlbXMuCj4KPiBNeSB1bmRlcnN0YW5kaW5nIGlzIHRoYXQgZHVyaW5n IFhlbiBzdGFydHVwLCBYZW4gd2lsbCBjb3B5Cj4gaXRzZWxmIHRvIHVwcGVyIHBoeXNpY2FsIG1l bW9yeSwgYW5kIGNvbnRpbnVlIHRvIHJ1biBmcm9tIHRoZXJlLAo+IGNvcnJlY3Q/IElzIHRoZXJl IGFueSBpbmZvcm1hdGlvbiBvbiBob3cgdGhlIGhlYXAgaXMgaGFuZGxlZCBoZXJlCj4gY29tcGFy ZWQgdG8gWGVuIG9uIEFSTSAoZS5nLiBkb21oZWFwIGFuZCB4ZW5oZWFwKT8KPgo+IEZyb20gaHR0 cDovL3d3dy53aWtpLnhpbGlueC5jb20vWGVuK0h5cGVydmlzb3IraW50ZXJuYWxzLCBpdCBsb29r cwo+IGxpa2UgYWxsIG1lbW9yeSBmb3IgZG9tMCBpcyBtYXBwZWQgMToxLiBEb2VzIHRoaXMgbWVh biB0aGF0IGRvbTAKPiBrZWVwcyBwaHlzaWNhbCBtZW1vcnkgZnJvbSBhZGRyZXNzIDAgdXAgdW50 aWwgZG9tMF9tZW0/Cj4KPiBGdXJ0aGVyIGJlbG93LCBpdCBtZW50aW9ucyB0aGF0IGVhY2ggZG9t VSBoYXMgYW4gYXJ0aWZpY2lhbCBtZW1vcnkKPiBtYXAuIEJ1dCBJJ20gbm90IHN1cmUgd2hhdCB0 aGlzIGxvb2tzIGxpa2UgaW4gbWVtb3J5LiBDb3VsZCBzb21lb25lCj4gY2xhcmlmeSBob3cgdGhp cyBpcyBkb25lPwo+Cj4gVGhhbmtzLAo+IE1pY2hhZWwKPgo+IF9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCj4gRW1iZWRkZWQtcHYtZGV2ZWwgbWFpbGluZyBs aXN0Cj4gRW1iZWRkZWQtcHYtZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKPiBodHRwczovL2xp c3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8vZW1iZWRkZWQtcHYtZGV2ZWwKCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkVtYmVkZGVkLXB2 LWRldmVsIG1haWxpbmcgbGlzdApFbWJlZGRlZC1wdi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9y ZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8vZW1iZWRkZWQt cHYtZGV2ZWw= From embedded-pv-devel-bounces@lists.xenproject.org Tue Dec 26 15:01:59 2017 Return-path: Envelope-to: archives@lists.xenproject.org Delivery-date: Tue, 26 Dec 2017 15:01:59 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eTqju-000786-9U; Tue, 26 Dec 2017 15:01:58 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eTqjt-000780-6x for embedded-pv-devel@lists.xenproject.org; Tue, 26 Dec 2017 15:01:57 +0000 X-Inumbo-ID: 93f471b1-ea4d-11e7-b4a6-bc764e045a96 Received: from rhcavuit03.kulnet.kuleuven.be (unknown [2a02:2c40:0:c0::25:136]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 93f471b1-ea4d-11e7-b4a6-bc764e045a96; Tue, 26 Dec 2017 16:00:58 +0100 (CET) X-KULeuven-Envelope-From: pieter.dewachter@student.kuleuven.be X-Spam-Status: not spam, SpamAssassin (not cached, score=-49.999, required 5, autolearn=disabled, HTML_MESSAGE 0.00, LOCAL_SMTPS -50.00) X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: EAC02120322.AE03E X-KULeuven-Information: Katholieke Universiteit Leuven Received: from icts-p-smtps-1.cc.kuleuven.be (icts-p-smtps-1e.kulnet.kuleuven.be [134.58.240.33]) by rhcavuit03.kulnet.kuleuven.be (Postfix) with ESMTP id EAC02120322 for ; Tue, 26 Dec 2017 16:01:48 +0100 (CET) Received: from ICTS-S-EXMBX8.luna.kuleuven.be (icts-s-exmbx8.luna.kuleuven.be [10.112.11.16]) (using TLSv1.2 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by icts-p-smtps-1.cc.kuleuven.be (Postfix) with ESMTPS id E890F4118 for ; Tue, 26 Dec 2017 16:01:48 +0100 (CET) Received: from ICTS-S-EXMBX7.luna.kuleuven.be (10.112.11.15) by ICTS-S-EXMBX8.luna.kuleuven.be (10.112.11.16) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Tue, 26 Dec 2017 16:01:48 +0100 Received: from ICTS-S-EXMBX7.luna.kuleuven.be ([fe80::217d:355b:2d1a:daa8]) by ICTS-S-EXMBX7.luna.kuleuven.be ([fe80::217d:355b:2d1a:daa8%22]) with mapi id 15.00.1320.000; Tue, 26 Dec 2017 16:01:48 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Pieter Dewachter To: "embedded-pv-devel@lists.xenproject.org" Thread-Topic: Supported hardware Thread-Index: AQHTflovZWrrpFlOOE2yOsUqHOPmQA== Date: Tue, 26 Dec 2017 15:01:48 +0000 Message-ID: <1514300509174.39373@student.kuleuven.be> Accept-Language: nl-NL, nl-BE, en-US Content-Language: nl-NL X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.112.50.1] MIME-Version: 1.0 Subject: [Embedded-pv-devel] Supported hardware X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============3906596499118807129==" Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" --===============3906596499118807129== Content-Language: nl-NL Content-Type: multipart/alternative; boundary="_000_151430050917439373studentkuleuvenbe_" --_000_151430050917439373studentkuleuvenbe_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear developers, I'm doing my master thesis this year and it's about automotive software. Mo= re specifically it is about creating a failover cluster by using a hypervis= or to connect all available hardware. In that way the goal is to eliminate = outage of a safety critical system, by letting another hardware component t= ake over its functionality. In particular the Embedded and Automotive PV Drivers of the Xen Project Hyp= ervisor seemed like an interesting to choice for this. Unfortunately the cu= rrently supported hardware is rather expensive (I would need at least two d= evelopment boards to create something). Only when I get confirmation that i= t is absolutely required, they could potentially buy those expensive boards= . So I was wondering if there is any hardware that could be used which is che= aper? For example a development board with a single ARM Cortex A53 processo= r, instead of multiple processors like the R-Car boards offer. Performance = is not a really big issue here, as it would only be to demonstrate that it = actually works. Possible delays are not a dealbreaker either. Thanking you in advance. Yours sincerely, Pieter Dewachter --_000_151430050917439373studentkuleuvenbe_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Dear develop= ers,


I'm doing my= master thesis this year and it's about automotive software. More specifically it is about creating a failover clu= ster by using a hypervisor to connect all available hardware. In that way t= he goal is to eliminate outage of a safety critical system, by letting anot= her hardware component take over its functionality.


In particula= r the Embedded and Automotive PV Drivers of the Xen Project Hypervisor seemed like an interesting to choice for thi= s. Unfortunately the currently supported hardware is rather expensive (I wo= uld need at least two development boards to create something). Only when I = get confirmation that it is absolutely required, they could potentially buy those expensive boards.=


So I was won= dering if there is any hardware that could be used which is cheaper? For example a development board with a sin= gle ARM Cortex A53 processor, instead of multiple processors like the R-Car= boards offer. Performance is not a really big issue here, as it would only= be to demonstrate that it actually works. Possible delays are not a dealbreaker either.


Thanking you in advance.


Yours sincerely,

Pieter Dewac= hter

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Tue, 26 Dec 2017 08:06:47 -0800 (PST) To: Pieter Dewachter , "embedded-pv-devel@lists.xenproject.org" References: <1514300509174.39373@student.kuleuven.be> From: Awais Masood Message-ID: Date: Tue, 26 Dec 2017 21:06:41 +0500 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0 MIME-Version: 1.0 In-Reply-To: <1514300509174.39373@student.kuleuven.be> Content-Language: en-US Subject: Re: [Embedded-pv-devel] Supported hardware X-BeenThere: embedded-pv-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: embedded-pv-devel-bounces@lists.xenproject.org Sender: "Embedded-pv-devel" SGkgUGlldGVyLAoKT24gMTIvMjYvMjAxNyA4OjAxIFBNLCBQaWV0ZXIgRGV3YWNodGVyIHdyb3Rl Ogo+IERlYXIgZGV2ZWxvcGVycywKPgo+Cj4gSSdtIGRvaW5nIG15IG1hc3RlciB0aGVzaXMgdGhp cyB5ZWFyIGFuZCBpdCdzIGFib3V0IGF1dG9tb3RpdmUgc29mdHdhcmUuIE1vcmUgc3BlY2lmaWNh bGx5IGl0IGlzIGFib3V0IGNyZWF0aW5nIGEgZmFpbG92ZXIgY2x1c3RlciBieSB1c2luZyBhIGh5 cGVydmlzb3IgdG8gY29ubmVjdCBhbGwgYXZhaWxhYmxlIGhhcmR3YXJlLiBJbiB0aGF0IHdheSB0 aGUgZ29hbCBpcyB0byBlbGltaW5hdGUgb3V0YWdlIG9mIGEgc2FmZXR5IGNyaXRpY2FsIHN5c3Rl bSwgYnkgbGV0dGluZyBhbm90aGVyIGhhcmR3YXJlIGNvbXBvbmVudCB0YWtlIG92ZXIgaXRzIGZ1 bmN0aW9uYWxpdHkuCj4KPgo+IEluIHBhcnRpY3VsYXIgdGhlIEVtYmVkZGVkIGFuZCBBdXRvbW90 aXZlIFBWIERyaXZlcnMgb2YgdGhlIFhlbiBQcm9qZWN0IEh5cGVydmlzb3Igc2VlbWVkIGxpa2Ug YW4gaW50ZXJlc3RpbmcgdG8gY2hvaWNlIGZvciB0aGlzLiBVbmZvcnR1bmF0ZWx5IHRoZSBjdXJy ZW50bHkgc3VwcG9ydGVkIGhhcmR3YXJlIGlzIHJhdGhlciBleHBlbnNpdmUgKEkgd291bGQgbmVl ZCBhdCBsZWFzdCB0d28gZGV2ZWxvcG1lbnQgYm9hcmRzIHRvIGNyZWF0ZSBzb21ldGhpbmcpLiBP bmx5IHdoZW4gSSBnZXQgY29uZmlybWF0aW9uIHRoYXQgaXQgaXMgYWJzb2x1dGVseSByZXF1aXJl ZCwgdGhleSBjb3VsZCBwb3RlbnRpYWxseSBidXkgdGhvc2UgZXhwZW5zaXZlIGJvYXJkcy4KPgo+ Cj4gU28gSSB3YXMgd29uZGVyaW5nIGlmIHRoZXJlIGlzIGFueSBoYXJkd2FyZSB0aGF0IGNvdWxk IGJlIHVzZWQgd2hpY2ggaXMgY2hlYXBlcj8gRm9yIGV4YW1wbGUgYSBkZXZlbG9wbWVudCBib2Fy ZCB3aXRoIGEgc2luZ2xlIEFSTSBDb3J0ZXggQTUzIHByb2Nlc3NvciwgaW5zdGVhZCBvZiBtdWx0 aXBsZSBwcm9jZXNzb3JzIGxpa2UgdGhlIFItQ2FyIGJvYXJkcyBvZmZlci4gUGVyZm9ybWFuY2Ug aXMgbm90IGEgcmVhbGx5IGJpZyBpc3N1ZSBoZXJlLCBhcyBpdCB3b3VsZCBvbmx5IGJlIHRvIGRl bW9uc3RyYXRlIHRoYXQgaXQgYWN0dWFsbHkgd29ya3MuIFBvc3NpYmxlIGRlbGF5cyBhcmUgbm90 IGEgZGVhbGJyZWFrZXIgZWl0aGVyLgpJIGFtIG5vdCBzdWUgb2Ygd2hhdCB5b3VyIGZ1bGwgaGFy ZHdhcmUgcmVxdWlyZW1lbnRzIGFyZSAoZS5nLiBkbyB5b3UgbmVlZCBTTU1VPykgYnV0IFhlbiA0 LjEwIHJlbGVhc2Ugc3VwcG9ydHMgbXVsdGlwbGUgQWxsd2lubmVywqAgU29Dcy4gTWFueSBvZiB0 aGVzZSBTb0NTIGFyZSBhdmFpbGFibGUgb24gdmVyeSBpbmV4cGVuc2l2ZSBTQkNzLgoKV2UgcmVj ZW50bHkgdXNlZCBvbmUgb2YgdGhlc2UgKHF1YWQgQ29ydGV4LUE1MykgdG8gaW50ZWdyYXRlIGFu ZCBkZW1vbnN0cmF0ZSBYZW4gYXV0b21vdGl2ZSBQViBkcml2ZXJzLgoKaHR0cHM6Ly93d3cueW91 dHViZS5jb20vd2F0Y2g/dj1OckZOUmQyOW56RQoKQ2F1dGlvbiB0aGF0IHRoZXNlIFNvQ3MgYXJl IHdpdGhvdXQgU01NVSBzbyBzb21lIHNhZmV0eSBjb25zaWRlcmF0aW9ucyB3aWxsIGFwcGx5LgoK Q2hlZXJzLApBd2Fpcwo+Cj4gVGhhbmtpbmcgeW91IGluIGFkdmFuY2UuCj4KPgo+IFlvdXJzIHNp bmNlcmVseSwKPgo+IFBpZXRlciBEZXdhY2h0ZXIKPgo+Cj4KPiBfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IEVtYmVkZGVkLXB2LWRldmVsIG1haWxpbmcg bGlzdAo+IEVtYmVkZGVkLXB2LWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCj4gaHR0cHM6Ly9s aXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2VtYmVkZGVkLXB2LWRldmVsCgoK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkVtYmVkZGVk LXB2LWRldmVsIG1haWxpbmcgbGlzdApFbWJlZGRlZC1wdi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0 Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8vZW1iZWRk ZWQtcHYtZGV2ZWw=