kvm: don't use perror() without useful errno
This MR fixes a confusing error message when trying to enable split irqchip (unsupported) on Arm.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2095608 Upstream: merged
This MR fixes a confusing error message when trying to enable split irqchip (unsupported) on Arm.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2095608 Upstream: merged