More than 255 vcpus Windows VM setup without viommu ?

2024-07-02 Thread Sandesh Patel
Hi All, Is it possible to setup a large Windows VM (say 512 vcpus) without adding viommu (EIM=on, IR=on)? When I try to power such VM, the qemu process crashes with error- ``` qemu-kvm: ../accel/kvm/kvm-all.c:1837: kvm_irqchip_commit_routes: Assertion `ret == 0’ failed ``` Stack trace- ``` #1

Re: More than 255 vcpus Windows VM setup without viommu ?

2024-07-02 Thread David Woodhouse
On Tue, 2024-07-02 at 05:17 +, Sandesh Patel wrote: > Hi All, > Is it possible to setup a large Windows VM (say 512 vcpus) without > adding viommu (EIM=on, IR=on)? > When I try to power such VM, the qemu process crashes with error- > ``` > qemu-kvm: ../accel/kvm/kvm-all.c:1837:

More than 255 vcpus Windows VM setup without viommu ?

2024-07-02 Thread Sandesh Patel
Hi All, Is it possible to setup a large Windows VM (say 512 vcpus) without adding viommu (EIM=on, IR=on)? When I try to power such VM, the qemu process crashes with error- ``` qemu-kvm: ../accel/kvm/kvm-all.c:1837: kvm_irqchip_commit_routes: Assertion `ret == 0’ failed ``` Stack trace- ``` #1