私はARM Chromebookモデル「xe303c12」でDebian bookwormを実行しており、KVMを有効にするためにカーネル（5.4）を再コンパイルしたので、システムの音は次のようになります。
$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 12 (bookworm)
Release: 12
Codename: bookworm
$ uname -a
Linux chromarietto 5.4.244-stb-cbe
#8 SMP PREEMPT Sat Aug 19 22:19:32 UTC 2023 armv7l GNU/Linux
$ uname -r
5.4.244-stb-cbe
$ kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used
$ qemu-system-arm --version
QEMU emulator version 5.1.0 (v5.1.0-dirty)
Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers
$ python3 --version
Python 3.11.2
qemu、kvm、およびlibvirtを一緒に接続して、Arm 32ビット用のFreeBSD 13.2を仮想化できるという究極の目標で、ソースからlibvirt 9.7.0、qemu 5.1、virt-managerをインストールしました。私のプラットフォームに関する有用な情報：
root@chromarietto:/home/marietto/Desktop# virt-host-validate
QEMU: Checking if device /dev/kvm exists : PASS
QEMU: Checking if device /dev/kvm is accessible : PASS
QEMU: Checking if device /dev/vhost-net exists : PASS
QEMU: Checking if device /dev/net/tun exists : PASS
QEMU: Checking for cgroup 'cpu' controller support : PASS
QEMU: Checking for cgroup 'cpuacct' controller support : PASS
QEMU: Checking for cgroup 'cpuset' controller support : PASS
QEMU: Checking for cgroup 'memory' controller support : PASS
QEMU: Checking for cgroup 'devices' controller support : PASS
QEMU: Checking for cgroup 'blkio' controller support : PASS
QEMU: Checking for device assignment IOMMU support : WARN
(No ACPI IORT table found, IOMMU not supported by this hardware platform)
QEMU: Checking for secure guest support : WARN
(Unknown if this platform has Secure Guest support)
LXC: Checking for Linux >= 2.6.26 : PASS
LXC: Checking for namespace ipc : PASS
LXC: Checking for namespace mnt : PASS
LXC: Checking for namespace pid : PASS
LXC: Checking for namespace uts : PASS
LXC: Checking for namespace net : PASS
LXC: Checking for namespace user : PASS
LXC: Checking for cgroup 'cpu' controller support : PASS
LXC: Checking for cgroup 'cpuacct' controller support : PASS
LXC: Checking for cgroup 'cpuset' controller support : PASS
LXC: Checking for cgroup 'memory' controller support : PASS
LXC: Checking for cgroup 'devices' controller support : PASS
LXC: Checking for cgroup 'freezer' controller support : FAIL
(Enable 'freezer' in kernel Kconfig file or mount/enable cgroup controller in your system)
LXC: Checking for cgroup 'blkio' controller support : PASS
LXC: Checking if device /sys/fs/fuse/connections exists : PASS
# lsmod | grep kvm
no errors (I have embedded the options needed to enable KVM inside the kernel)
# virsh --connect qemu:///system capabilities | grep baselabel
<baselabel type='kvm'>+1002:+1002</baselabel>
<baselabel type='qemu'>+1002:+1002</baselabel>
解決できないエラーは次のとおりです。
root@chromarietto:~# virsh domcapabilities --machine virt --emulatorbin /usr/local/bin/qemu-system-arm
2023-08-29 10:17:59.110+0000: 1763: error : virHostCPUGetKVMMaxVCPUs:1228 :
KVM is not supported on this platform: Function not implemented ;
error: failed to get emulator capabilities
error: KVM is not supported on this platform: Function not implemented
デバッグオプションが有効な状態でlibvirtdを実行したときに取得されるログ。
root@chromarietto:~# libvirtd --debug
[Tue, 29 Aug 2023 10:10:11 virt-manager 2141] DEBUG (createvm:494) UEFI found, setting it as default.
[Tue, 29 Aug 2023 10:10:11 virt-manager 2141] DEBUG (createvm:728) Guest type set to os_type=hvm, arch=armv7l, dom_type=kvm
[Tue, 29 Aug 2023 10:10:11 virt-manager 2141] DEBUG (guest:546) Prefer EFI => True
2023-08-29 10:10:12.972+0000: 1765: error : virHostCPUGetKVMMaxVCPUs:1228 : KVM is not supported on this platform: Function not implemented
[Tue, 29 Aug 2023 10:10:12 virt-manager 2141] DEBUG (domcapabilities:250) Error fetching domcapabilities XML
Traceback (most recent call last):
File "/usr/local/share/virt-manager/virtinst/domcapabilities.py", line 245, in build_from_params
xml = conn.getDomainCapabilities(emulator, arch,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/libvirt.py", line 4612, in getDomainCapabilities
raise libvirtError('virConnectGetDomainCapabilities() failed')
libvirt.libvirtError: KVM is not supported on this platform: Function not implemented
2023-08-29 10:10:14.157+0000: 1762: error : virHostCPUGetKVMMaxVCPUs:1228 : KVM is not supported on this platform: Function not implemented
[Tue, 29 Aug 2023 10:10:14 virt-manager 2141] DEBUG (domcapabilities:250) Error fetching domcapabilities XML
Traceback (most recent call last):
File "/usr/local/share/virt-manager/virtinst/domcapabilities.py", line 245, in build_from_params
xml = conn.getDomainCapabilities(emulator, arch,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/libvirt.py", line 4612, in getDomainCapabilities
raise libvirtError('virConnectGetDomainCapabilities() failed')
libvirt.libvirtError: KVM is not supported on this platform: Function not implemented
[Tue, 29 Aug 2023 10:10:14 virt-manager 2141] DEBUG (createvm:497) Error checking for UEFI default
Traceback (most recent call last):
File "/usr/local/share/virt-manager/virtManager/createvm.py", line 491, in _set_caps_state
guest.enable_uefi()
File "/usr/local/share/virt-manager/virtinst/guest.py", line 589, in enable_uefi
path = self._lookup_default_uefi_path()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/share/virt-manager/virtinst/guest.py", line 848, in _lookup_default_uefi_path
raise RuntimeError(_("Libvirt version does not support UEFI."))
RuntimeError: Libvirt version does not support UEFI
誰かがこのエラーを解決するためのいくつかの提案をすることができますか？ありがとうございます。
ベストアンサー1
KVMの32ビットARMサポートは5.2（および5.7カーネル以上）から削除されました。バラよりhttps://qemu.readthedocs.io/en/master/about/removed-features.html#kvm-guest-support-on-32-bit-arm-hosts-removed-in-5-2