From f5f6c29e99b51fb7471cb4ecf02f5846607e0f1d Mon Sep 17 00:00:00 2001
From: Andrew Rynhard <andrew@andrewrynhard.com>
Date: Wed, 21 Aug 2019 14:38:04 +0000
Subject: [PATCH] chore: add QEMU script

This script will help in low-level development.

Signed-off-by: Andrew Rynhard <andrew@andrewrynhard.com>
---
 hack/dev/qemu-boot.sh | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100755 hack/dev/qemu-boot.sh

diff --git a/hack/dev/qemu-boot.sh b/hack/dev/qemu-boot.sh
new file mode 100755
index 000000000..91b75627d
--- /dev/null
+++ b/hack/dev/qemu-boot.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+
+set -e
+
+if [[ $# -ne 1 ]]; then
+  echo 1>&2 "Usage: $0 <machine config URL>"
+  exit 3
+fi
+
+case $(uname -s) in
+  LINUX*)
+    ACCEL=kvm
+    ;;
+
+  Darwin*)
+    ACCEL=hvf
+    ;;
+  *)
+    exit 1
+    ;;
+esac
+
+KERNEL="build/vmlinuz"
+INITRD="build/initramfs.xz"
+IMAGE="/tmp/rootfs.qcow2"
+MACHINE_CONFIG="${1}"
+
+qemu-img create -f qcow2 ${IMAGE} 8G
+
+qemu-system-x86_64 \
+    -m 2048 \
+    -accel ${ACCEL},thread=multi \
+    -cpu max \
+    -smp 2 \
+    -hda ${IMAGE} \
+    -netdev user,id=talos,ipv4=on,net=10.254.0.0/24,dhcpstart=10.254.0.10,hostfwd=tcp::50000-:50000,hostname=master-1 \
+    -device virtio-net,netdev=talos \
+    -nographic \
+    -serial mon:stdio \
+    -no-reboot \
+    -append "talos.platform=metal page_poison=1 slab_nomerge pti=on random.trust_cpu=on printk.devkmsg=on earlyprintk=serial,tty0,keep console=tty0 talos.userdata=${MACHINE_CONFIG}" \
+    -kernel ${KERNEL} \
+    -initrd ${INITRD}