[PATCH v8 09/43] KVM: arm64: Allow passing machine type in KVM creation

[Gavin Shan]

On 4/16/25 11:41 PM, Steven Price wrote:
> Previously machine type was used purely for specifying the physical
> address size of the guest. Reserve the higher bits to specify an ARM
> specific machine type and declare a new type 'KVM_VM_TYPE_ARM_REALM'
> used to create a realm guest.
> 
> Reviewed-by: Suzuki K Poulose <suzuki.poulose at arm.com>
> Signed-off-by: Steven Price <steven.price at arm.com>
> ---
> Changes since v7:
>   * Add some documentation explaining the new machine type.
> Changes since v6:
>   * Make the check for kvm_rme_is_available more visible and report an
>     error code of -EPERM (instead of -EINVAL) to make it explicit that
>     the kernel supports RME, but the platform doesn't.
> ---
>   Documentation/virt/kvm/api.rst | 16 ++++++++++++++--
>   arch/arm64/kvm/arm.c           | 15 +++++++++++++++
>   arch/arm64/kvm/mmu.c           |  3 ---
>   include/uapi/linux/kvm.h       | 19 +++++++++++++++----
>   4 files changed, 44 insertions(+), 9 deletions(-)
> 

Reviewed-by: Gavin Shan <gshan at redhat.com>