Re: [Qemu-devel] [PATCH v6 13/23] hmp: display memory encryption support in 'info kvm'

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Brijesh Singh <brijesh.singh@xxxxxxx> writes:

> update 'info kvm' to display the memory encryption support.
>
> (qemu) info kvm
> kvm support: enabled
> memory encryption: disabled
>
> Cc: "Dr. David Alan Gilbert" <dgilbert@xxxxxxxxxx>
> Cc: Eric Blake <eblake@xxxxxxxxxx>
> Cc: Markus Armbruster <armbru@xxxxxxxxxx>
> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx>
> ---
>  hmp.c            | 2 ++
>  qapi-schema.json | 5 ++++-
>  qmp.c            | 1 +
>  3 files changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/hmp.c b/hmp.c
> index 056bf70cf1e2..6ceb6b30af75 100644
> --- a/hmp.c
> +++ b/hmp.c
> @@ -88,6 +88,8 @@ void hmp_info_kvm(Monitor *mon, const QDict *qdict)
>      monitor_printf(mon, "kvm support: ");
>      if (info->present) {
>          monitor_printf(mon, "%s\n", info->enabled ? "enabled" : "disabled");
> +        monitor_printf(mon, "memory encryption: %s\n",
> +                       info->mem_encryption ? "enabled" : "disabled");
>      } else {
>          monitor_printf(mon, "not compiled\n");
>      }
> diff --git a/qapi-schema.json b/qapi-schema.json
> index 5c06745c7927..2046c96669bf 100644
> --- a/qapi-schema.json
> +++ b/qapi-schema.json
> @@ -314,9 +314,12 @@
>  #
>  # @present: true if KVM acceleration is built into this executable
>  #
> +# @mem-encryption: true if Memory Encryption is active (since 2.12)
> +#
>  # Since: 0.14.0
>  ##
> -{ 'struct': 'KvmInfo', 'data': {'enabled': 'bool', 'present': 'bool'} }
> +{ 'struct': 'KvmInfo', 'data': {'enabled': 'bool', 'present': 'bool',
> +            'mem-encryption' : 'bool'} }

This extends QMP's query-kvm.  Your commit message claims the patch
affects only HMP.  Needs fixing.  The cleanest way is to split the patch
into its QMP part (hunks #2 and #3) and its HMP part (hunk #1).

>  
>  ##
>  # @query-kvm:
> diff --git a/qmp.c b/qmp.c
> index 52cfd2d81c0f..3a527bc8c39c 100644
> --- a/qmp.c
> +++ b/qmp.c
> @@ -69,6 +69,7 @@ KvmInfo *qmp_query_kvm(Error **errp)
>  
>      info->enabled = kvm_enabled();
>      info->present = kvm_available();
> +    info->mem_encryption = kvm_memcrypt_enabled();
>  
>      return info;
>  }



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