Re: [RFC v2] Add support for Xen ARM guest on FreeBSD
On 02/12/2014 18:30, Warner Losh wrote: Hey Julien, Hi Warner, Have you rebased your patch train after Andrew’s commits? I just pushed a new branch rebased on the latest master: git://xenbits.xen.org/people/julieng/freebsd.git branch xen-arm-v2.2 I can re-export the patch into files if necessary. Regards, -- Julien Grall ___ freebsd-xen@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to freebsd-xen-unsubscr...@freebsd.org
Re: [RFC v2] Add support for Xen ARM guest on FreeBSD
Hello Andrew, On 28/11/2014 13:57, Andrew Turner wrote: On Sun, 23 Nov 2014 22:35:36 + Julien Grall julien.gr...@linaro.org wrote: Major changes in this new version: * Add Device Tree support via Linux Boot ABI * Add zImage support * Netfront support * Blkfront fixes * DOM0 support (separate branch see below) The former item is very hackish. I was wondering if there is another way to do it? Or maybe we should support FreeBSD Bootloader in ARM guest? I think using the loader is the correct way to handle booting in Xen. It allows us to relocate the dtb as required. It look like a zImage then use the Xen console to interact with the user. Thanks, I will give a look to this solution. The patch series is divided in X parts: * #1 - #14: Clean up and bug fixes for Xen. They can be applied without the rest of the series * #15 - #19: Update Xen interface to 4.4 and fix compilation. It's required for ARM. * #20 - #26: Update Xen code to support ARM * #27 - #33: Rework the event channel code for supporting ARM. I will work with Royger to come with a common interface with x86 * #34 - #36: Add support for ARM in Xen code * #37 - #46: ARM bug fixes and new features. Some of thoses patches (#37 - #40) could be applied without the rest of the series * #47 - #48: Add Xen ARM platform I have committed patches 30 and 40 as they look good. Thanks! I'm not familiar with the code to review 37 or 38, however from my quick look at 38 I appears _bus_dmamap_load_buffer does take in to account buflen and dmat-maxsegsz when setting sgsize just not dmat-alignment. Right, I guess I could just keep the roundup2. ... TODO: * Add SMP/PSCI support in FreeBSD. Could be useful other platform too Adding PSCI support is on my TODO lost for arm64, however I don't expect to get on ti in until early next year. BTW, what is the actual status of the ARM64 port? I plan to give a look for adding Xen support too. Regards, -- Julien Grall ___ freebsd-xen@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to freebsd-xen-unsubscr...@freebsd.org
Re: [RFC v2] Add support for Xen ARM guest on FreeBSD
Hey Julien, Have you rebased your patch train after Andrew’s commits? Warner On Dec 2, 2014, at 8:31 AM, Julien Grall julien.gr...@linaro.org wrote: Hello Andrew, On 28/11/2014 13:57, Andrew Turner wrote: On Sun, 23 Nov 2014 22:35:36 + Julien Grall julien.gr...@linaro.org wrote: Major changes in this new version: * Add Device Tree support via Linux Boot ABI * Add zImage support * Netfront support * Blkfront fixes * DOM0 support (separate branch see below) The former item is very hackish. I was wondering if there is another way to do it? Or maybe we should support FreeBSD Bootloader in ARM guest? I think using the loader is the correct way to handle booting in Xen. It allows us to relocate the dtb as required. It look like a zImage then use the Xen console to interact with the user. Thanks, I will give a look to this solution. The patch series is divided in X parts: * #1 - #14: Clean up and bug fixes for Xen. They can be applied without the rest of the series * #15 - #19: Update Xen interface to 4.4 and fix compilation. It's required for ARM. * #20 - #26: Update Xen code to support ARM * #27 - #33: Rework the event channel code for supporting ARM. I will work with Royger to come with a common interface with x86 * #34 - #36: Add support for ARM in Xen code * #37 - #46: ARM bug fixes and new features. Some of thoses patches (#37 - #40) could be applied without the rest of the series * #47 - #48: Add Xen ARM platform I have committed patches 30 and 40 as they look good. Thanks! I'm not familiar with the code to review 37 or 38, however from my quick look at 38 I appears _bus_dmamap_load_buffer does take in to account buflen and dmat-maxsegsz when setting sgsize just not dmat-alignment. Right, I guess I could just keep the roundup2. ... TODO: * Add SMP/PSCI support in FreeBSD. Could be useful other platform too Adding PSCI support is on my TODO lost for arm64, however I don't expect to get on ti in until early next year. BTW, what is the actual status of the ARM64 port? I plan to give a look for adding Xen support too. signature.asc Description: Message signed with OpenPGP using GPGMail
Re: [RFC v2] Add support for Xen ARM guest on FreeBSD
On Sun, 23 Nov 2014 22:35:36 + Julien Grall julien.gr...@linaro.org wrote: Hello all, At the beginning of the year, I have sent a first RFC to add support for FreeBSD on Xen ARM [1]. ... Major changes in this new version: * Add Device Tree support via Linux Boot ABI * Add zImage support * Netfront support * Blkfront fixes * DOM0 support (separate branch see below) The former item is very hackish. I was wondering if there is another way to do it? Or maybe we should support FreeBSD Bootloader in ARM guest? I think using the loader is the correct way to handle booting in Xen. It allows us to relocate the dtb as required. It look like a zImage then use the Xen console to interact with the user. The patch series is divided in X parts: * #1 - #14: Clean up and bug fixes for Xen. They can be applied without the rest of the series * #15 - #19: Update Xen interface to 4.4 and fix compilation. It's required for ARM. * #20 - #26: Update Xen code to support ARM * #27 - #33: Rework the event channel code for supporting ARM. I will work with Royger to come with a common interface with x86 * #34 - #36: Add support for ARM in Xen code * #37 - #46: ARM bug fixes and new features. Some of thoses patches (#37 - #40) could be applied without the rest of the series * #47 - #48: Add Xen ARM platform I have committed patches 30 and 40 as they look good. I'm not familiar with the code to review 37 or 38, however from my quick look at 38 I appears _bus_dmamap_load_buffer does take in to account buflen and dmat-maxsegsz when setting sgsize just not dmat-alignment. ... TODO: * Add SMP/PSCI support in FreeBSD. Could be useful other platform too Adding PSCI support is on my TODO lost for arm64, however I don't expect to get on ti in until early next year. * Only FreeBSD to load anywhere. Currently there is a 2M alignment which require a patch in Xen. If you use the loader this will be fixed as the loader can load the kernel at the correct alignment. ___ freebsd-xen@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to freebsd-xen-unsubscr...@freebsd.org
[RFC v2] Add support for Xen ARM guest on FreeBSD
Hello all, At the beginning of the year, I have sent a first RFC to add support for FreeBSD on Xen ARM [1]. The first version was very primitive: hardcoded DTB, only single user-mode support,... Since then, I have improved the support and rebased everything on master. Thanks for the FreeBSD ARM team which did a great job and remove all most of my issues (Userspace hanging, Device Tree Bindings). Major changes in this new version: * Add Device Tree support via Linux Boot ABI * Add zImage support * Netfront support * Blkfront fixes * DOM0 support (separate branch see below) The former item is very hackish. I was wondering if there is another way to do it? Or maybe we should support FreeBSD Bootloader in ARM guest? The patch series is divided in X parts: * #1 - #14: Clean up and bug fixes for Xen. They can be applied without the rest of the series * #15 - #19: Update Xen interface to 4.4 and fix compilation. It's required for ARM. * #20 - #26: Update Xen code to support ARM * #27 - #33: Rework the event channel code for supporting ARM. I will work with Royger to come with a common interface with x86 * #34 - #36: Add support for ARM in Xen code * #37 - #46: ARM bug fixes and new features. Some of thoses patches (#37 - #40) could be applied without the rest of the series * #47 - #48: Add Xen ARM platform I don't really know how works patch review on Freebsd. Therefore, I provided the series in git format and file format. All based on Royger's pvh dom0 work v8: git://xenbits.xen.org/people/julieng/freebsd.git branch xen-arm-v2 http://xenbits.xen.org/people/julieng/xen-arm-v2.1/ As said above, there is a separate branch for DOM0, the patches are not part of this series. The support has been done and demoed for the Arndale (though I've been tested since a while), but there is lots of work to clean up (device tree stuff and hack in the code): git://xenbits.xen.org/people/julieng/freebsd.git branch dom0-arm-v0 http://xenbits.xen.org/people/julieng/dom0-arm-v0 TODO: * Add SMP/PSCI support in FreeBSD. Could be useful other platform too * Only FreeBSD to load anywhere. Currently there is a 2M alignment which require a patch in Xen. * ELF support in Xen ARM? Not sure it's useful. Any help, comments, questions are welcomed. Sincerely yours, [1] http://lists.freebsd.org/pipermail/freebsd-xen/2014-January/001974.html = Instruction to test FreeBSD on Xen on ARM === FreeBSD miss some support to fully boot on Xen ARM. This patch applied to Xen ARM help FreeBSD to boot correctly for the time being: * https://patches.linaro.org/32742/ To compile and boot Xen on your board, you can refer to the wiki page: http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions The instruction to compile FreeBSD for Xen on ARM: $ truncate -s 512 xenvm.img $ sudo mdconfig -f xenvm.img -u0 $ sudo newfs /dev/md0 $ sudo mount /dev/md0 /mnt $ sudo make TARGET_ARCH=armv6 kernel-toolchain $ sudo make TARGET_ARCH=armv6 KERNCONF=XENHVM buildkernel $ sudo make TARGET_ARCH=armv6 buildworld $ sudo make TARGET_ARCH=armv6 DESTDIR=/mnt installworld distribution $ echo /dev/xbd0 / ufs rw 1 1 /mnt/etc/fstab $ vi /mnt/etc/ttys (add the line 'xc0 /usr/libexec/getty Pc xterm on secure) $ sudo umount /mnt $ sudo mdconfig -d u0 Then you can copy the rootfs and the kernel to DOM 0 on your board. To boot the a FreeBSD your will required the following configuration file $ cat freebsd.xl kernel=kernel memory=64 name=freebsd vcpus=1 autoballon=off disk=[ 'phy:/dev/loop0,xvda,w' ] $ losetup /dev/loop0 xenvm.img $ xl create freebsd.xl $ xl console freebsd -- Julien Grall ___ freebsd-xen@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to freebsd-xen-unsubscr...@freebsd.org
