Re: [RFC PATCH 1/5] Update Linux headers with new MTE support

[Haibo Xu]

++ more migration experts!

On Mon, 8 Feb 2021 at 11:20, Haibo Xu <haibo.xu@linaro.org> wrote:
>
> Signed-off-by: Haibo Xu <haibo.xu@linaro.org>
> ---
>  linux-headers/linux/kvm.h | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
> index 020b62a619..6a291a9a35 100644
> --- a/linux-headers/linux/kvm.h
> +++ b/linux-headers/linux/kvm.h
> @@ -1056,6 +1056,7 @@ struct kvm_ppc_resize_hpt {
>  #define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
>  #define KVM_CAP_SYS_HYPERV_CPUID 191
>  #define KVM_CAP_DIRTY_LOG_RING 192
> +#define KVM_CAP_ARM_MTE 193
>
>  #ifdef KVM_CAP_IRQ_ROUTING
>
> @@ -1241,6 +1242,19 @@ struct kvm_arm_device_addr {
>         __u64 addr;
>  };
>
> +#define KVM_ARM_TAGS_TO_GUEST           0
> +#define KVM_ARM_TAGS_FROM_GUEST         1
> +
> +struct kvm_arm_copy_mte_tags {
> +       __u64 guest_ipa;
> +       __u64 length;
> +       union {
> +               void *addr;
> +               __u64 padding;
> +       };
> +       __u64 flags;
> +};
> +
>  /*
>   * Device control API, available with KVM_CAP_DEVICE_CTRL
>   */
> @@ -1396,6 +1410,7 @@ struct kvm_s390_ucas_mapping {
>  /* Available with KVM_CAP_PMU_EVENT_FILTER */
>  #define KVM_SET_PMU_EVENT_FILTER  _IOW(KVMIO,  0xb2, struct 
> kvm_pmu_event_filter)
>  #define KVM_PPC_SVM_OFF                  _IO(KVMIO,  0xb3)
> +#define KVM_ARM_MTE_COPY_TAGS    _IOR(KVMIO,  0xb4, struct 
> kvm_arm_copy_mte_tags)
>
>  /* ioctl for vm fd */
>  #define KVM_CREATE_DEVICE        _IOWR(KVMIO,  0xe0, struct 
> kvm_create_device)
> --
> 2.17.1
>