[PATCH] KVM: PPC: Book3S HV Nested: Fix nested HFSCR being clobbered with multiple vCPUs

[Fabiano Rosas]

Nicholas Piggin <npiggin at gmail.com> writes:

> The L0 is storing HFSCR requested by the L1 for the L2 in struct
> kvm_nested_guest when the L1 requests a vCPU enter L2. kvm_nested_guest
> is not a per-vCPU structure. Hilarity ensues.
>
> Fix it by moving the nested hfscr into the vCPU structure together with
> the other per-vCPU nested fields.
>
> Fixes: 8b210a880b35 ("KVM: PPC: Book3S HV Nested: Make nested HFSCR state accessible")
> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>

Reviewed-by: Fabiano Rosas <farosas at linux.ibm.com>