When turning off the "KVM hardware virtualization" checkbox in Proxmox
VE, the TCG accelerator is used, so these fixes are relevant then.
The first patch is included to allow cherry-picking the others without
changes.
Reported-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>