Re: [PATCH v3 01/14] s390x/s390-virtio-ccw: don't crash on weird RAM sizes

[Michael Tokarev]

19.12.2024 17:41, David Hildenbrand wrote:
> KVM is not happy when starting a VM with weird RAM sizes:
>
>    # qemu-system-s390x --enable-kvm --nographic -m 1234K
>    qemu-system-s390x: kvm_set_user_memory_region: KVM_SET_USER_MEMORY_REGION
>      failed, slot=0, start=0x0, size=0x244000: Invalid argument
>    kvm_set_phys_mem: error registering slot: Invalid argument
>    Aborted (core dumped)
>
> Let's handle that in a better way by rejecting such weird RAM sizes
> right from the start:
>
>    # qemu-system-s390x --enable-kvm --nographic -m 1234K
>    qemu-system-s390x: ram size must be multiples of 1 MiB

Shouldn't this one be picked for qemu-stable?  Seems like a good
bugfix to me.  Picked up for current stable releases for now, please
let me know if I shouldn't.