KVM: s390: pv: add mmu_notifier

Add an mmu_notifier for protected VMs. The callback function is
triggered when the mm is torn down, and will attempt to convert all
protected vCPUs to non-protected. This allows the mm teardown to use
the destroy page UVC instead of export.

Also make KVM select CONFIG_MMU_NOTIFIER, needed to use mmu_notifiers.

Signed-off-by: Claudio Imbrenda <[email protected]>
Acked-by: Janosch Frank <[email protected]>
Reviewed-by: Nico Boehr <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Message-Id: <[email protected]>
[[email protected]: Conflict resolution for mmu_notifier.h include
and struct kvm_s390_pv]
Signed-off-by: Janosch Frank <[email protected]>

0 files changed, 0 insertions, 0 deletions