Re: [PATCH v2 1/3] monitor: Add HMP and QMP interfaces

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 9/10/21 12:22 PM, Yang Zhong wrote:
> The QMP and HMP interfaces can be used by monitor or QMP tools to retrieve
> the SGX information from VM side when SGX is enabled on Intel platform.
> 
> Signed-off-by: Yang Zhong <yang.zhong@intel.com>
> ---
>  hmp-commands-info.hx         | 15 +++++++++++++
>  hw/i386/sgx.c                | 29 ++++++++++++++++++++++++
>  include/hw/i386/sgx.h        | 11 +++++++++
>  include/monitor/hmp-target.h |  1 +
>  qapi/misc-target.json        | 43 ++++++++++++++++++++++++++++++++++++
>  target/i386/monitor.c        | 36 ++++++++++++++++++++++++++++++
>  tests/qtest/qmp-cmd-test.c   |  1 +
>  7 files changed, 136 insertions(+)
>  create mode 100644 include/hw/i386/sgx.h

> diff --git a/qapi/misc-target.json b/qapi/misc-target.json
> index 3b05ad3dbf..e2a347cc23 100644
> --- a/qapi/misc-target.json
> +++ b/qapi/misc-target.json
> @@ -333,3 +333,46 @@
>  { 'command': 'query-sev-attestation-report', 'data': { 'mnonce': 'str' },
>    'returns': 'SevAttestationReport',
>    'if': 'TARGET_I386' }
> +
> +##
> +# @SGXInfo:
> +#
> +# Information about intel Safe Guard eXtension (SGX) support
> +#
> +# @sgx: true if SGX is supported
> +#
> +# @sgx1: true if SGX1 is supported
> +#
> +# @sgx2: true if SGX2 is supported
> +#
> +# @flc: true if FLC is supported
> +#
> +# @section-size: The EPC section size for guest
> +#
> +# Since: 6.2
> +##
> +{ 'struct': 'SGXInfo',
> +  'data': { 'sgx': 'bool',
> +            'sgx1': 'bool',
> +            'sgx2': 'bool',
> +            'flc': 'bool',
> +            'section-size': 'uint64'},
> +   'if': 'TARGET_I386' }

Is it possible to restrict it to KVM? Maybe:

     'if': { 'all': ['TARGET_I386', 'CONFIG_KVM'] } },

? (I'm not sure).