Public bug reported:
[Impact]
Our riscv64 kernels have CONFIG_KVM=m. This means that the /dev/kvm
device is only available after modprobing.
On amd64 we use the systemd qemu-kvm service for this purpose that runs
/usr/share/qemu/init/qemu-kvm-init start
/usr/share/qemu/init/qemu-kvm-init contains support for x86_64, i686,
and ppc*, but not for riscv64.
This is the change needed:
diff --git a/debian/qemu-kvm-init b/debian/qemu-kvm-init
index af00b7184..4a37c46b3 100755
--- a/debian/qemu-kvm-init
+++ b/debian/qemu-kvm-init
@@ -32,6 +32,9 @@ case "$arch" in
fi
modlist="kvm-hv"
;;
+ riscv64)
+ kvm=/usr/bin/qemu-system-riscv64
+ modlist="kvm"
esac
# Silently exit if the package isn't installed anymore
[Test Plan]
On a riscv64 system with RVA23S64 support:
* Install qemu-system-common.
* Check that /dev/kvm exists.
* Unload the kvm module.
* Check that that /dev/kvm no longer exists (assuming the kernel is configure
with CONFIG_KVM=m)
* Restart the qemu-kvm service (sudo systemctl restart qemu-kvm.service)
* Check that /dev/kvm is available.
[Where Problems Could Occur]
If we create a syntax error in the script, automatic KVM loading might
fail on all architectures.
[ Other Info ]
n/a
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
** Affects: qemu (Ubuntu Resolute)
Importance: Undecided
Status: New
** Affects: qemu (Ubuntu Stonking)
Importance: Undecided
Status: New
** Also affects: qemu (Ubuntu Resolute)
Importance: Undecided
Status: New
** Also affects: qemu (Ubuntu Stonking)
Importance: Undecided
Status: New
** Changed in: qemu (Ubuntu Resolute)
Milestone: None => ubuntu-26.04.1
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https://bugs.launchpad.net/bugs/2157739
Title:
[SRU] qemu-kvm-init does not load kvm module on riscv64
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