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Add ARM64 support #173

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merged 3 commits into from
Aug 2, 2019
Merged

Add ARM64 support #173

merged 3 commits into from
Aug 2, 2019

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luxas
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@luxas luxas commented Jul 15, 2019

Fixes #172
Work in progress, targeting v0.5.0

cc @DieterReuter (Ignite on Raspberry Pi, here we come!)

@luxas luxas added this to the v0.5.0 milestone Jul 15, 2019
@luxas luxas self-assigned this Jul 15, 2019
@DieterReuter
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👍

@DieterReuter
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Currently Firecracker doesn't run on the RPi3 with KVM enabled. I'm discussing this in the Firecracker slack channel.

Here are the details, when I’m starting fc on arm64 I did get the following error message

$ sudo ./firecracker-v0.17.0-aarch64
2019-07-15T12:59:02.780924077 [anonymous-instance:ERROR:src/main.rs:53] Firecracker panicked at 'Cannot create VMM: Missing KVM capability: Irqchip', src/libcore/result.rs:1009:5
2019-07-15T12:59:02.979244234 [anonymous-instance:ERROR:src/main.rs:56] stack backtrace:
   0: backtrace::backtrace::trace_unsynchronized::hc634af106af00d20 (0x533dd3)
   1: backtrace::capture::Backtrace::new::ha2fbfd2368c482cf (0x5331a3)
   2: firecracker::main::{{closure}}::hd8d62d1cc7597ec4 (0x40370b)
   3: std::panicking::rust_panic_with_hook::h28b9ce6fa7a5033b (0x53cb2b)
             at src/libstd/panicking.rs:495
   4: std::panicking::continue_panic_fmt::h4c221b9431554bc2 (0x53c9cb)
             at src/libstd/panicking.rs:398
   5: rust_begin_unwind (0x5493d7)
             at src/libstd/panicking.rs:325
   6: core::panicking::panic_fmt::h4d67173bc68f6d5a (0x54b0df)
             at src/libcore/panicking.rs:95
   7: core::result::unwrap_failed::h2119ca699bc4feea (0x4672f3)
2019-07-15T12:59:02.979727098 [anonymous-instance:ERROR:src/main.rs:60] Failed to log metrics while panicking: Logger was not initialized.
Aborted

FC basically complains about Missing KVM capability: Irqchip, but this one is included in the kernel
for reference here are the KVM related kernel settings

$ grep KVM 4.19.58-hypriotos-v8.config
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_VCPU_RUN_PID_CHANGE=y
CONFIG_KVM=y
CONFIG_KVM_ARM_HOST=y
CONFIG_KVM_ARM_PMU=y
CONFIG_KVM_INDIRECT_VECTORS=y

The system in question is a Raspberry Pi 3B, running Debian 9 with a Linux kernel 4.19.58

[    0.000000] Linux version 4.19.58-hypriotos-v8 (root@405b3dab1308) (gcc version 7.4.1 20181213 [linaro-7.4-2019.02 revision 56ec6f6b99cc167ff0c2f8e1a2eed33b1edc85d4] (Linaro GCC 7.4-2019.02)) #1 SMP PREEMPT Mon Jul 15 11:13:17 UTC 2019
[    0.000000] Machine model: Raspberry Pi 3 Model B Plus Rev 1.3

@DieterReuter
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Issue is create at Firecracker repo firecracker-microvm/firecracker#1186.

@luxas luxas mentioned this pull request Jul 29, 2019
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@luxas luxas changed the title [WIP] Refactor the Dockerfile & Makefile to support arm64 Refactor the Dockerfile & Makefile to support arm64 Aug 2, 2019
twelho
twelho approved these changes Aug 2, 2019
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LGTM 👍

@twelho twelho merged commit 0181314 into master Aug 2, 2019
@luxas luxas added the kind/feature Categorizes issue or PR as related to a new feature. label Aug 6, 2019
@luxas luxas changed the title Refactor the Dockerfile & Makefile to support arm64 Add ARM64 support Aug 6, 2019
@luxas luxas deleted the arm64 branch August 6, 2019 18:22
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Add arm64 support
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