[PATCH v23 07/14] KVM: arm64: Refactor the vcpu_load to allow for VM specific callbacks

[Fuad Tabba]

On Wed, 7 Oct 2026 at 09:36, Suzuki K Poulose <suzuki.poulose at arm.com> wrote:
>
> To keep the VCPU load/put handling cleaner with the different kinds of VM
> types, we are about to introduce VM specific callbacks to do just the right
> thing. In preparation for that, make some refactoring to add the change
> easier by mainly feature specific configurations to individual wrappers,
> so that different callbacks could reuse the helpers.
>
> Adds vcpu_prepare_mmu()/vcpu_put_mmu() wrappers to load/put MMU related
> configurations for !pKVM guests. Additionally makes it explicit that
> kvm_arm_vmid_clear_active() is not required for pKVM host.
>
> Add vcpu_load_pvtime(), vcpu_set_wfx_traps() wrappers for handling the
> corresponding configurations.
>
> While at it, also make it clear that the timer loading constraints only
> apply for the VHE.
>
> No functional changes intended. Based on a work by Marc Zyngier.
>
> Reviewed-by: Gavin Shan <gshan at redhat.com>
> Tested-by: Gavin Shan <gshan at redhat.com>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose at arm.com>

Reviewed-by: Fuad Tabba <fuad.tabba at linux.dev>

Cheers,
/fuad