Class ARMV7QEMURunner

boot-qemu.py:401–439

class ARMV7QEMURunner(ARMQEMURunner, ARMEFIQEMURunner):
    def __init__(self) -> None:
        super().__init__()

        self.supports_efi = True
        self.use_kvm = self._can_use_kvm()

        self.cmdline += ['console=ttyAMA0', 'earlycon']

    def _can_use_kvm(self) -> bool:
        # 32-bit ARM KVM was ripped out in 5.7, so we do not bother checking
        # for it here.
        if platform.machine() != 'aarch64':
            return False

        # 32-bit EL1 is not supported on all cores so support for it must be
        # explicitly queried via the KVM_CHECK_EXTENSION ioctl().
        try:
            subprocess.run(
                Path(utils.BOOT_UTILS, 'utils', 'aarch64_32_bit_el1_supported'),
                check=True,
            )
        except subprocess.CalledProcessError:
            return False

        return self._have_dev_kvm_access()

    def run(self) -> None:
        if self.efi:
            aavmf_locations = [
                Path('edk2/arm/QEMU_EFI.fd'),  # Arch Linux, Fedora
            ]
            self._setup_efi(aavmf_locations)

        if self.use_kvm:
            self._kvm_cpu.append('aarch64=off')
            self._qemu_arch = 'aarch64'

        super().run()


class ARM64QEMURunner(ARMEFIQEMURunner):