[PATCH v9 13/43] arm64: RME: Support for the VGIC in realms

[Gavin Shan]

On 6/11/25 8:48 PM, Steven Price wrote:
> The RMM provides emulation of a VGIC to the realm guest but delegates
> much of the handling to the host. Implement support in KVM for
> saving/restoring state to/from the REC structure.
> 
> Signed-off-by: Steven Price <steven.price at arm.com>
> ---
> Changes from v8:
>   * Propagate gicv3_hcr to from the RMM.
> Changes from v5:
>   * Handle RMM providing fewer GIC LRs than the hardware supports.
> ---
>   arch/arm64/include/asm/kvm_rme.h |  1 +
>   arch/arm64/kvm/arm.c             | 16 +++++++++--
>   arch/arm64/kvm/rme.c             |  5 ++++
>   arch/arm64/kvm/vgic/vgic-init.c  |  2 +-
>   arch/arm64/kvm/vgic/vgic-v3.c    |  6 +++-
>   arch/arm64/kvm/vgic/vgic.c       | 49 ++++++++++++++++++++++++++++++--
>   6 files changed, 72 insertions(+), 7 deletions(-)
> 
Reviewed-by: Gavin Shan <gshan at redhat.com>