KVM: PPC: Book3E: KVM HV host module doesn't work anymore

[Paolo Bonzini]

Il mer 25 dic 2024, 13:48 Christian Zigotzky <chzigotzky at xenosoft.de> ha
scritto:

> > But do you see anything on the host dmesg (without and with the
> > patch), for example a WARN?
> Unfortunately no log during the start of KVM HV.
>

Ok.

> Also you might try edebc0a1b7ab5ff19b4f5cd011c93196fc34b3e4 + the
> > patch, to see if there are two bugs.
> >
> > Paolo
> >
> I think you mean 419cfb983ca93e75e905794521afefcfa07988bb because "git
> checkout edebc0a1b7ab5ff19b4f5cd011c93196fc34b3e4" doesn't work.
>
> Error message: fatal: reference is not a tree:
> edebc0a1b7ab5ff19b4f5cd011c93196fc34b3e4
>
> git checkout 419cfb983ca93e75e905794521afefcfa07988bb
>

That's the upstream commit that doesn't boot.
edebc0a1b7ab5ff19b4f5cd011c93196fc34b3e4 was the rebased version of the
same commit, where your bisection finished.

Paolo

Output:
>
> Updating files: 100% (16656/16656), done.
> Note: switching to '419cfb983ca93e75e905794521afefcfa07988bb'.
>
> You are in 'detached HEAD' state. You can look around, make experimental
> changes and commit them, and you can discard any commits you make in this
> state without impacting any branches by switching back to a branch.
> ...
> HEAD is now at 419cfb983ca9 KVM: PPC: e500: Use __kvm_faultin_pfn() to
> handle page faults
>
> ---
>
> patch -p0 < kvm_main.patch // Your patch
>
> Output:
>
> patching file a/virt/kvm/kvm_main.c
>
> Oh dear, the host kernel doesn't boot. :-(
>
> --
> Sent with BrassMonkey 33.4.0 (
> https://github.com/wicknix/brass-monkey/releases/tag/33.4.0)
>
>
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