[PATCH] Support cpu0-id of Qemu QMP query-sev-capabilities

[Niteesh Dubey]

On 5/5/2022 6:30 AM, Michal Prívozník wrote:
> On 4/27/22 21:57, Niteesh Dubey wrote:
>> It allows libvirt to provide the value of cpu0-id retuned by the Qemu QMP
>>   command query-sev-capabilities as implemented by the Qemu Patch [1] which
>>   is merged to Qemu master branch and should be available with Qemu 7.1.
>>   This is used to get the signed Chip Endorsement Key (CEK) of the CPU of AMD
>>   system from AMD's Key Distribution Service (KDS).
>>
>> Similar to  cbitpos, reducedPhysBits, maxGuests & maxESGuests;
>>   the value of cpu0-id is also provided using 'virsh domcapability'.
>>
>> [1] https://lore.kernel.org/all/20220228093014.882288-1-dovmurik@linux.ibm.com/
>>
>> Signed-off-by: Niteesh Dubey <niteesh at linux.ibm.com>
>> ---
>>   include/libvirt/libvirt-host.h | 11 +++++++++++
>>   src/conf/domain_capabilities.c |  4 ++++
>>   src/conf/domain_capabilities.h |  1 +
>>   src/qemu/qemu_capabilities.c   | 12 ++++++++++++
>>   src/qemu/qemu_driver.c         |  5 +++++
>>   src/qemu/qemu_monitor_json.c   |  6 ++++++
>>   6 files changed, 39 insertions(+)
>>
>> diff --git a/include/libvirt/libvirt-host.h b/include/libvirt/libvirt-host.h
>> index b5cf8a4a4a..d35abbd9aa 100644
>> --- a/include/libvirt/libvirt-host.h
>> +++ b/include/libvirt/libvirt-host.h
>> @@ -537,6 +537,17 @@ typedef virNodeMemoryStats *virNodeMemoryStatsPtr;
>>    */
>>   # define VIR_NODE_SEV_CERT_CHAIN "cert-chain"
>>   
>> +/**
>> + * VIR_NODE_SEV_CPU0_ID:
>> + *
>> + * Macro represents the unique ID of CPU0 (socket 0) needed to retrieve
>> + * the signed CEK of the CPU from AMD's Key Distribution Service (KDS),
>> + * as VIR_TYPED_PARAMS_STRING.
>> + *
>> + * Since: v8.3.1
> The next release is 8.4.0. The micro version number is reserved for
> maintanance releases (e.g. when a critical bug fix is backported). But
> we don't really do those.
>
> Anyway, fixed this small nit and pushed. Congratulations on your first
> libvirt contribution!
>
> Michal

Thank you!

Niteesh