add support for qemu-arm64 acpi boot

config/docker/qemu.jinja2

@@ -20,6 +20,7 @@ RUN apt-get update && \
         qemu-system-s390x \
         qemu-system-sparc \
         qemu-system-x86 \
+        qemu-efi-aarch64 \
         qemu-utils
 
 RUN mkdir -p /etc/qemu && echo allow all > /etc/qemu/bridge.conf

config/runtime/README.md

@@ -37,3 +37,33 @@ The selected image must provide the platform's `qemu-system-<arch>` binary
 and be accessible to the LAVA worker. This parameter selects the boot
 action's container image; it is separate from the job's top-level `image`
 setting for its runtime environment.
+
+## ARM64 QEMU ACPI boot
+
+Set `qemu_arm64_acpi: true` in a LAVA job's `params` to boot an existing
+ARM64 QEMU platform with UEFI and ACPI:
+
+```yaml
+jobs:
+  baseline-arm64-qualcomm:
+    template: baseline.jinja2
+    kind: job
+    kcidb_test_suite: boot
+    params:
+      rootfs_ref: buildroot-baseline
+      qemu_arm64_acpi: true
+```
+
+The flag applies only to platforms with `boot_method: qemu` and `arch: arm64`.
+It appends `-bios /usr/share/qemu-efi-aarch64/QEMU_EFI.fd` to the generated
+LAVA context's `extra_options` and adds `acpi=force` to QEMU's kernel command
+line. It does not modify the shared platform configuration. Omitted or
+false flags preserve the existing boot behavior.
+
+Deploy the updated core templates together with the pipeline configuration.
+The QEMU container must contain the firmware at that path; rebuild the image
+with the updated QEMU recipe, which installs `qemu-efi-aarch64`, or use a
+compatible image via `qemu_docker_image`. The kernel must enable `CONFIG_ACPI`,
+`CONFIG_EFI`, and `CONFIG_EFI_STUB`. The pipeline baseline test checks for a
+readable `/sys/firmware/acpi/tables/DSDT` when this mode is active, so a boot
+without usable ACPI tables does not pass that check.

config/runtime/base/lava.jinja2

@@ -11,7 +11,6 @@
 # * timeout
 # * modules
 # * kernel image name
-# * UEFI binaries for QEMU etc.
 # * rootfs URL
 
 job_name: "[{{ instanceid|default('KernelCI AKS')}}] {{ node.id }} {{ node.name }} {{ node.data.kernel_revision.describe }}"
@@ -22,10 +21,17 @@ visibility: public
 
 priority: {{ priority | default('10') }}
 
-{% if platform_config.context or extra_kernel_args %}
+{% set qemu_acpi_enabled = (qemu_arm64_acpi | default(false)) and
+    platform_config.boot_method == 'qemu' and platform_config.arch == 'arm64' %}
+{% set lava_context = dict(platform_config.context or {}) %}
+{% if qemu_acpi_enabled %}
+  {% set _ = lava_context.update(extra_options=(lava_context.get('extra_options') or []) +
+      ['-bios', '/usr/share/qemu-efi-aarch64/QEMU_EFI.fd']) %}
+{% endif %}
+{% if lava_context or extra_kernel_args %}
 context:
-  {% if platform_config.context %}
-    {% for key, value in platform_config.context.items() %}
+  {% if lava_context %}
+    {% for key, value in lava_context.items() %}
   {{ key }}: {{ value }}
     {% endfor %}
   {% endif %}

config/runtime/boot/qemu.jinja2

@@ -3,7 +3,7 @@
     images:
       kernel:
         image_arg: -kernel {kernel} -append "console={{ console_dev }},115200 root=/dev/ram0 debug
-          verbose console_msg_format=syslog earlycon"
+          verbose console_msg_format=syslog earlycon{{ ' acpi=force' if qemu_acpi_enabled else '' }}"
         url: '{{ node.artifacts.kernel }}'
       ramdisk:
         image_arg: -initrd {ramdisk}