On 2/1/18 11:58 AM, Dr. David Alan Gilbert wrote:
> * Brijesh Singh (brijesh.singh@xxxxxxx) wrote:
>> update 'info kvm' to display the memory encryption support.
>>
>> (qemu) info kvm
>> kvm support: enabled
>> memory encryption: disabled
> As Markus said, this should be split qmp/hmp; but something else to
> think about is whether this is a boolean or needs to be an enum; do
> you have one version of encryption or are we going to need to flag up
> versions or the features of the encryption?
In future I could see us providing encrypted state status when we
implement SEV-ES support, something like
(qemu) info kvm
kvm support: enabled
memory encryption: enabled
cpu register state: encrypted
but so far I do not see need to provide the version string. If user
wants to know the SEV version then it can open /dev/sev device to get
platform status and more.
> Dave
>
>> 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'} }
>>
>> ##
>> # @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;
>> }
>> --
>> 2.9.5
>>
> --
> Dr. David Alan Gilbert / dgilbert@xxxxxxxxxx / Manchester, UK
