Xen project Mailing List

Re: [Xen-users] How to boot domU and dom0 from a device tree

To: xen-users@xxxxxxxxxxxxxxxxxxxx, Julien Grall <julien.grall@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Iain Hunter <drhunter95@xxxxxxxxx>, Hunyue Yau <hy-gsoc@xxxxxxxxxxxxxxx>

From: Denis Obrezkov <denisobrezkov@xxxxxxxxx>

Date: Mon, 10 Jun 2019 19:51:32 +0200

Autocrypt: addr=denisobrezkov@xxxxxxxxx; prefer-encrypt=mutual; keydata= mQMuBFrAxPQRCAD59CJNd5LF1VmojUBpdr/bJ2TaKC7SW4ln7+PWn+QyAJfFOVFlTRIDsAlP 65y7CacXFCXmLTACo4a7HEhRb5787kPm6rc30zpL+04uXCeTruYZi0ZnQVXOiab/qy3aMsk0 6n9hMY28TSbM9nynnlrbg9pGkb1EiFVNsowJjFSKXa3Rpogte9qxfXmLf2eV0MZNnrmq6Kb2 8ri5/Ffh5DG1CsN/dkv8n1kw2QqMM2RT+ZS57D+yCehtw355EXSVh2r+GsXAqMinOexcdYI4 skvvP84OovRMnlJhmRdnbjO+QFiOVeLUj7WHMT3AbClaBlUuHkbFi9HLBHAiu6uMrNtzAQD9 KoM6SXbuvlhCq2v78dGkex9EgaA7CSnBcNXuUdrjYQf+MsZgI7oDihT6TUBO0IDQL+qSrozs /hHV+HhWtc5+SYTsHXxnTkcVe12vR0uPw3fFUuncWnMRzHivKZC2ZF/w3LJL/nGzguAoPa9e VghM38EP49yO6ESthD4WvELMy2+zPkMiUqilMfxOl370RXxEBUIzFSpP6oqvNq7fvThGTQah mrFhflGSyMHXk75VkCiY+cbrMeB9xG7H3nlbQ9fYVCOPejnt8gImeazdIghQh1tjbNpjQhy8 50klCowN5H+gaSZsy4K7jlJ1UNFz/vWCvlr3W8o4tA6EoJ4tjJV2HXcrUBPYLwkruKnv8QJM vyVj5an6Sfuwt/AmFEOKo1QJnAf+Oi47RrOmec8lXS/06TMn7z6krmuRul03HXayCtREqMyY VCf87oMpPYYnFJolDrSB8kCSZRn2aixzHl4IIGa9RVuywChzUvgZJbFGPFR+Qz1BK9Ltl7FC rQcuAqg3A2RJ7uoTNiZDfI0tKWm8BEUe5LqZqgFTkTkuV9D6UveYnDk2zUFGlDTguagW2XWI wiGaA9Ud7UBBlQGTZUwNGahAErUHI5gDSNfWEUaRBEccWKgddK3a/NhkxOveqDWWFcAt4K/g JOqBs+7Bm0RjQa+4EAP6gFx4098XBZP9ff6pPuFWRN6fvfdBDUMHqb3i2SGDWVPrRR/x+Iz/ yfjdWlC/87QoRGVuaXMgT2JyZXprb3YgPGRlbmlzb2JyZXprb3ZAZ21haWwuY29tPoiWBBMR CAA+FiEExuZY9Y+VSLigQ/5M+4kLEySe7PkFAlrAxPQCGyMFCQWjmoAFCwkIBwIGFQgJCgsC BBYCAwECHgECF4AACgkQ+4kLEySe7PleSQEAktULi71pVGKh0vykq0wrn6IyqXx1SLFNwLcr PnZ2N5gA/3Ipzf3vXWXWCwRR07BB/H+9XgqWRl3jsu5EL9TzmyFAuQINBFrAxPQQCADaIOKd +PPUX4GvjdLikKxHsFRRpk75LiFZJcFU8cCA0M4Dg/Q0LcSX82TfgrfU34y7/rrF4ig/Dj81 H8MB2u01lYA2QpQ/XdHfwFMxkj5FCB4Cq6EqGxsXsaRhw4Qu3ouiJiHCEeoMoloBLOlqpXBf qnJSnBXYJDnlyvxoFIVpX4l+q2xJk/877otbPK5TBYdeHQv/f7cWNxIUT5Feth9DVq4B9OG1 BgOA1gH13KUmWhMaO+k/rYCJd9UiRoGm7FihyWrsRnG5K6VNnLjwjMjxDukNxdlITVbeK5/E QaiKRGRcTp3OwfHy6HlQH/JXGGyfmEx0rKVjoW/DD76MPpk/AAMFB/0SBNOW9asG5HeRKhJm QOPJDwNQik4t8uuZb7mw6+QoQuyzMBkXvhL7Aud0OluPeSYL2jZPw2IB26gvlUVva+FJRW9X 7cInI5mnuB4HBGdNpzR+ngRzFyf+qsd6cUrrioQUQozQKCgKG/J2LimV1fC4hQW0n5Q0qM9I KX3PtRCgxItQbn/HdqkTXqv8oxDB9cQILJvIYDZnVLojB4rJFUNb397ao3qaXdXj3iaX6wwJ 2Oo3cSxMGdY/8grRTDGYjItpWEM2noIRzdWSybzavtLHu/LmG4rbgy2aNm/TiVp28G5KvWW/ fCLomZhN0JscRgSkYjSaxmMgEdks1h9DWTHkiH4EGBEIACYWIQTG5lj1j5VIuKBD/kz7iQsT JJ7s+QUCWsDE9AIbDAUJBaOagAAKCRD7iQsTJJ7s+UF2AQDqHEO2tekVMTWJa3SakIM5FJjk sao+JkzbKe0vDy4ecwEAukGaHvmKxMZsUOOjDWjDe4eV+aRTVjUjY7LAl3OJkiU=

Delivery-date: Mon, 10 Jun 2019 17:52:55 +0000

List-id: Xen user discussion <xen-users.lists.xenproject.org>

Openpgp: preference=signencrypt

Also, I found out how to pass the amount of memory for dom0. And I passed 256M. And I can see that in a device tree there is a memory node with 4096M allocated. So, I don't understand why I have this error: (XEN) *** LOADING DOMAIN 0 *** (XEN) Loading Domd0 kernel from boot module @ 0000000047000000 (XEN) Loading ramdisk from boot module @ 0000000042000000 (XEN) Allocating 1:1 mappings totalling 256MB for dom0: (XEN) BANK[0] 0x00000050000000-0x00000060000000 (256MB) (XEN) Grant table range: 0x00000049000000-0x00000049040000 (XEN) Allocating PPI 16 for event channel interrupt (XEN) Loading zImage from 0000000138000000 to 0000000050080000-00000000512d1a00 (XEN) Loading dom0 initrd from 0000000042000000 to 0x0000000058200000-0x000000005831b680 (XEN) Loading dom0 DTB to 0x0000000058000000-0x0000000058001da8 (XEN) Initial low memory virq threshold set at 0x4000 pages. (XEN) Scrubbing Free RAM in background (XEN) Std. Loglevel: Errors and warnings (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings) (XEN) *************************************************** (XEN) No support for ARM_SMCCC_ARCH_WORKAROUND_1. (XEN) Please update your firmware. (XEN) *************************************************** (XEN) 3... 2... 1... (XEN) *** Serial input to DOM0 (type 'CTRL-a' three times to switch input) (XEN) *** LOADING DOMU cpus=1 memory=140000KB *** (XEN) Loading Domd1 kernel from boot module @ 0000000043000000 (XEN) Loading ramdisk from boot module @ 0000000048000000 (XEN) (XEN) **************************************** (XEN) Panic on CPU 0: (XEN) Out of memory (XEN) **************************************** (XEN) (XEN) Reboot in five seconds... fdt commands passed via u-boot: setenv xen_bootargs 'dom0_mem=256M' fdt addr 0x44000000 fdt resize fdt set /chosen \#address-cells <1> fdt set /chosen \#size-cells <1> fdt set /chosen xen,xen-bootargs \"$xen_bootargs\" fdt mknod /chosen module@0 fdt set /chosen/module@0 compatible "xen,linux-zimage" "xen,multiboot-module" fdt set /chosen/module@0 reg <0x47000000 0x7cc561> fdt set /chosen/module@0 bootargs "rw root=/dev/ram rdinit=/sbin/init earlyprintk=serial,ttyAMA0 console=hvc0 earlycon=xenboot" fdt mknod /chosen module@1 fdt set /chosen/module@1 compatible "xen,linux-initrd" "xen,multiboot-module" fdt set /chosen/module@1 reg <0x42000000 0x11b680> fdt mknod /chosen domU1 fdt set /chosen/domU1 compatible "xen,domain" fdt set /chosen/domU1 \#address-cells <1> fdt set /chosen/domU1 \#size-cells <1> fdt set /chosen/domU1 \cpus <1> fdt set /chosen/domU1 \memory <0 1310720> fdt mknod /chosen/domU1 module@0 fdt set /chosen/domU1/module@0 compatible "multiboot,kernel" "multiboot,module" fdt set /chosen/domU1/module@0 reg <0x43000000 0x7cc561> fdt set /chosen/domU1/module@0 bootargs "rw root=/dev/ram rdinit=/sbin/init console=hvc0 earlycon=xenboot" fdt mknod /chosen/domU1 module@1 fdt set /chosen/domU1/module@1 compatible "multiboot,ramdisk" "multiboot,module" fdt set /chosen/domU1/module@1 reg <0x48000000 0x11b680> booti 0x49000000 - 0x44000000 On 6/10/19 2:24 PM, Denis Obrezkov wrote: > I found out that I can get rid of that error if I load the same image to > another address space with -device loader. But then I get the error: > (XEN) *************************************************** > (XEN) PLEASE SPECIFY dom0_mem PARAMETER - USING 512M FOR NOW > (XEN) *************************************************** > (XEN) 3... 2... 1... > (XEN) *** Serial input to DOM0 (type 'CTRL-a' three times to switch input) > (XEN) *** LOADING DOMU cpus=1 memory=200000KB *** > (XEN) Loading Domd1 kernel from boot module @ 0000000043000000 > (XEN) Loading ramdisk from boot module @ 0000000042000000 > (XEN) > (XEN) **************************************** > (XEN) Panic on CPU 0: > (XEN) Out of memory > (XEN) **************************************** > (XEN) > (XEN) Reboot in five seconds... > > So, I don't understand how xen distribute the allocated memory and how > can it be allocated via a device tree. > > On 6/10/19 12:09 PM, Denis Obrezkov wrote: >> Hello, >> >> I am trying to boot domU from a device tree. I want to use the same >> ramdisk and kernel image as for dom0. These are my u-boot commands: >> >> fdt addr 0x44000000 >> fdt resize >> fdt set /chosen \#address-cells <1> >> fdt set /chosen \#size-cells <1> >> fdt mknod /chosen module@0 >> fdt set /chosen/module@0 compatible "xen,linux-zimage" >> "xen,multiboot-module" >> fdt set /chosen/module@0 reg <0x47000000 0x7cc561> >> fdt set /chosen/module@0 bootargs "rw root=/dev/ram rdinit=/sbin/init >> earlyprintk=serial,ttyAMA0 console=hvc0 earlycon=xenboot" >> fdt mknod /chosen module@1 >> fdt set /chosen/module@1 compatible "xen,linux-initrd" >> "xen,multiboot-module" >> fdt set /chosen/module@1 reg <0x42000000 0x11b680> >> >> fdt mknod /chosen domU1 >> fdt set /chosen/domU1 compatible "xen,domain" >> fdt set /chosen/domU1 \#address-cells <1> >> fdt set /chosen/domU1 \#size-cells <1> >> >> fdt mknod /chosen/domU1 module@0 >> fdt set /chosen/domU1/module@0 compatible "xen,linux-zimage" >> "xen,multiboot-module" >> fdt set /chosen/domU1/module@0 reg <0x47000000 0x7cc561> >> fdt set /chosen/domU1/module@0 bootargs "rw root=/dev/ram >> rdinit=/sbin/init console=hvc0 earlycon=xenboot" >> >> fdt mknod /chosen/domU1 module@1 >> fdt set /chosen/domU1/module@1 compatible "xen,linux-initrd" >> "xen,multiboot-module" >> fdt set /chosen/domU1/module@1 reg <0x42000000 0x11b680> >> >> booti 0x49000000 - 0x44000000 >> >> I got: >> >> .... >> >> (XEN) *** LOADING DOMAIN 0 *** >> (XEN) Missing kernel boot module? >> (XEN) >> (XEN) **************************************** >> (XEN) Panic on CPU 0: >> (XEN) Could not set up DOM0 guest OS >> (XEN) **************************************** >> (XEN) >> (XEN) Reboot in five seconds... >> >> I wasn't able to find instructions on how to run domU and dom0 images >> simultaneously. >> > -- Regards, Denis Obrezkov

Attachment: signature.asc
Description: OpenPGP digital signature

_______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-users

©2013 Xen Project, A Linux Foundation Collaborative Project. All Rights Reserved.
Linux Foundation is a registered trademark of The Linux Foundation.
Xen Project is a trademark of The Linux Foundation.