The attached patch has the complete set of patches needed for kexec support on ARM64. * Enable ARM64 support in kexec-tools (LP: #1659618) * Enable support for compressed kernels on ARM64 (LP: #1661363) * kexec: Increase the upper limit for RAM segments (LP: #1663400)
This patch applies cleanly on Yakkety kexec-tools: https://pastebin.ubuntu.com/23968404/ Testing for lp 1663400 is posted to the SRU request description. Testing results for arm64 support yielded the same results as previously. ubuntu@yk:/tmp$ dpkg -l | grep kexec-tools ii kexec-tools 1:2.0.10-2ubuntu1.1 arm64 tools to support fast kexec reboots ubuntu@yk:/tmp$ ubuntu@yk:/tmp$ sudo kexec -l /boot/vmlinuz-4.8.0-38-generic --initrd=/boot/initrd.img-4.8.0-38-generic --append="root=UUID=d80e6bcf-a747-43fd-97fe-e47574637b2b ro vt.handoff=7" ubuntu@yk:/tmp$ ubuntu@yk:/tmp$ sudo kexec -e Ubuntu 16.10 yk ttyAMA0 yk login: [ 1902.177836] kexec_core: Starting new kernel [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 4.8.0-38-generic (manjo@tangerine) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #40ubuntu1 SMP Mon Feb 6 21:55:35 UTC 2017 (Ubuntu 4.8.0-38.40ubuntu1-generic 4.8.17) [ 0.000000] Boot CPU: AArch64 Processor [510f8000] [ 0.000000] efi: Getting EFI parameters from FDT: [ 0.000000] efi: EFI v2.50 by EDK II [ 0.000000] efi: SMBIOS=0x5bdb0000 SMBIOS 3.0=0x58660000 PROP=0x5f714518 ACPI=0x58690000 ACPI 2.0=0x58690014 [ 0.000000] No NUMA configuration found ** Patch added: "[YAKKETY Final] kexec arm64 support patch" https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1659618/+attachment/4816757/+files/final-kexec-yakkety-arm64-support.patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1659618 Title: Enable ARM64 support in kexec-tools Status in kexec-tools package in Ubuntu: Fix Released Status in kexec-tools source package in Xenial: In Progress Status in kexec-tools source package in Yakkety: In Progress Status in kexec-tools package in Debian: Fix Released Bug description: [IMPACT] * kexec-tools in Xenial (16.04) currently does not support ARM64 architecture. * Backport support for ARM64 arch from upstream https://github.com/horms/kexec-tools * Majority of the patches are contained in kexec/arch/arm64/ except for one patch that impacts purgatory and common device tree routines. [TEST CASE] * I built kexec-tools for ARM64 and tested it on HW using the following testcase: $ sudo kexec -l /boot/vmlinuz-<version>-generic --initrd=/boot/initrd.img-<version>-generic --command-line="root=UUID=<uuid> ro vt.handoff=7" $ sudo kexec -e * I was able to kexec the new kernel successfully. * [ 6702.357899] kexec_core: Starting new kernel [ 0.000000] Booting Linux on physical CPU 0x200 [ 0.000000] Linux version <version>-generic (buildd@bos01-arm64-008) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) [ 0.000000] Boot CPU: AArch64 Processor [510f8000] [REGRESSION POTENTIAL] * Since patches are confined to arm[64] there is a low overall risk of regression. [OTHER INFO] * You can find a Xenial kexec-tools package built for AMD64, i386 and ARM64 in my PPA https://launchpad.net/~manjo/+archive/ubuntu/kexec-tools * This package is built using the Xenial source package for kexec-tools with ARM64 enablement patches applied. * Please pull the changes from my PPA package and integrate into Ubuntu Xenial kexec-tools after review. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1659618/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
